Answer the anser is 3
please gimme brainly
Step-by-step explanation:
Solve the equation 0.5p-3.45=-1.2
Simplifying
0.5p + -3.45 = -1.2
Reorder the terms:
-3.45 + 0.5p = -1.2
Solving
-3.45 + 0.5p = -1.2
Solving for variable 'p'.
Move all terms containing p to the left, all other terms to the right.
Add '3.45' to each side of the equation.
-3.45 + 3.45 + 0.5p = -1.2 + 3.45
Combine like terms: -3.45 + 3.45 = 0.00
0.00 + 0.5p = -1.2 + 3.45
0.5p = -1.2 + 3.45
Combine like terms: -1.2 + 3.45 = 2.25
0.5p = 2.25
Divide each side by '0.5'.
p = 4.5
Simplifying
p = 4.5
The value of p from the given equation is 4.5.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
The given equation is 0.5p-3.45=-1.2
The solution of an equation is the set of all values that, when substituted for unknowns, make an equation true.
The equation can be solved as follows
0.5p-3.45=-1.2
0.5p= -1.2+3.45
0.5p= 2.25
p= 2.25/0.5
p= 4.5
Therefore, the value of p is 4.5.
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Elias writes the numbers 1 through 20 on separate slips of paper. There are 16 white slips of paper and four yellow slips of paper. There are eight odd numbers on white slips, and the rest of the odd numbers are on yellow slips. Are the events "odd” and "yellow” independent?
no, because the probability of choosing a yellow slip is not equal to the probability of choosing a yellow slip given an odd number
no, because the probability of choosing an odd number is not equal to the probability of choosing an odd number on a yellow slip
yes, because the probability of choosing an odd number is equal to the probability of choosing an odd number given that the slip is yellow
yes, because the probability of choosing an odd number on a yellow slip of paper is equal to the probability of choosing an odd number
Answer:
The correct answer option is: Yes, because the probability of choosing an odd number is equal to the probability of choosing an odd number given that the slip is yellow .
Step-by-step explanation:
We are given that Elias writes the numbers 1 through 20 on separate slips of paper.
Given that there are 16 white slips and four yellow slips and eight odd numbers on white slips, and the rest of the odd numbers are on yellow slips, we can conclude that the events are odd and yellow independent because the probability of choosing an odd number is equal to the probability of choosing an odd number given that the slip is yellow .
Answer:
c
Step-by-step explanation:
Which of the following expressions are equivalent to (x + y) - z
Choose all answers that apply:
A. z + (x + y)
B. x + (y − z)
C. None of the above
Final answer:
Option B: x + (y - z) is equivalent to the given expression (x + y) - z, applying the principles of associativity of addition and subtraction.
Explanation:
The question asks which of the given expressions are equivalent to (x + y) - z. To find the equivalent expressions, we need to apply the principles of commutativity and associativity of addition and subtraction.
Option A: z + (x + y) is not equivalent because the order of operations affects the result due to the subtraction of z. By combining z at the beginning, it implies adding before subtracting z, which alters the outcome unless z is explicitly negated.
Option B: x + (y - z) is equivalent. You can alter the grouping of addition due to associativity (x + y) - z = x + (y - z). Subtracting z directly from y before adding to x does not change the result.
Option C: None of the above is incorrect because Option B is indeed equivalent to the original expression.
Therefore, the expression that is equivalent to (x + y) - z is Option B: x + (y - z).
When the radius of a sphere is doubled, what is the resulting change in volume? A) The original volume is doubled. B) The original volume is multiplied by 4. C) The original volume is multiplied by 8. D) The original volume is multiplied by 10.
Answer:
C
Step-by-step explanation:
The volume (V) of a sphere is calculated using the formula
V = [tex]\frac{4}{3}[/tex]πr³
If the radius is doubled, that is r = 2r , then
V = [tex]\frac{4}{3}[/tex]π (2r )³
(2r)³ = 8r³, thus the volume is multiplied by 8
find (f o f) (3) . f(x)= x^2-x
Answer:
(f º f)(3) = 30, when f(x) = x² - x
Step-by-step explanation:
This is a great example of composite functions and how to multiply one function by another. (f º f) really means f(f(x)), or replacing every x in the original function f(x) with the function f(x).
Step 1: State the original function.
[tex]f(x) = x^{2} -x[/tex]
Step 2: Insert the function f(x) wherever there is an x.
[tex]f(f(x))=(x^{2} -x)^{2} -(x^2-x)[/tex]
Step 3: Expand anything that has an exponent. Remember: [tex](x+y)^2 = (x+y)(x+y)[/tex]
[tex]f(f(x))=(x^{2} -x)(x^{2} -x) -(x^2-x)[/tex]
Step 4: Foil the parts of the equations in brackets by multiplying the first terms, outside terms, inside terms and last terms in each bracket.
[tex]f(f(x))=(x^{4}-x^3-x^3+x^{2}) -(x^2-x)[/tex]
Step 5: Now you can remove the brackets (don'f forget to switch the symbols for the second brackets because you are subtracting) and sum the like terms.
[tex]f(f(x))=x^{4}-x^3-x^3+x^{2} -x^2+x[/tex]
[tex]f(f(x))=x^{4}-2x^3+x[/tex]
Step 6: Finally, substitute the given x value, which is 3, into the new equation.
[tex]f(f(x))=(3)^{4}-2(3)^3+(3)[/tex]
[tex]f(f(x))=81-54+3[/tex]
[tex]f(f(x))=30[/tex]
Therefore the answer is (f º f)(3) = 30.
Answer:
30
Step-by-step explanation:
Method 1:
ƒ(x) = x² - x
(f∘f)(x) = f(f(x)) = f(x²-x) = (x² - x)² - (x² - x) = x⁴ - 2x³ + x² - x² + x = x⁴ - 2x³ + x
(f∘f)(3) = 3⁴ - 2(3)³ + 3 = 81 - 54 + 3 = 30
Method 2:
f(3) = 3² - 3 = 9 - 3 = 6
(f∘f)(3) = f(f(3)) = f(6) = 6² - 6 = 36 - 6 = 30
a -------- of a number is that number times any whole number
Answer:
quotient
Step-by-step explanation:
A multiple of a number refers to the product of that number and any whole number. When a number is multiplied by itself, it's referred to as exponentiation where the number being multiplied is the base, and the times it is multiplied is the exponent.
Explanation:The student's question seems to be about the concept of multiplication in Math. A multiple of a number refers to the result of multiplying a number by any whole number. This is basically the process of addition repeated. For instance, the multiples of 3 include 3 (3x1), 6 (3x2), 9 (3x3), etc.
When a number is multiplied by itself a certain number of times, this takes on a different meaning. This operation is called exponentiation, where the number that is being multiplied is the base, and the number of times it's being multiplied is the exponent. For instance, 32 means 3 is being multiplied by itself 2 times (3 x 3), which equals 9. If we say 53, that means 5 is being multiplied by itself 3 times (5 x 5 x 5), which equals 125.
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Which two blue rectangles have the same total area as the red rectangle
D is the correct answer
Answer: D
Hope this Helps!
For what values of a are the following expressions true?|a+5| =5+a
Answer:
[tex]a\geq -5[/tex]
Simplify the expression. Write your answer as a power.
(−5/7)^8⋅(−5/7)^9
Answer: [tex](-\frac{5}{7})^{17}[/tex]
Step-by-step explanation:
The expression can be simplified by applying the a properties of exponents, specifically the Product of powers, which states that:
[tex](b^a)(b^c)=b^{(a+c)[/tex]
Where b is the base and a and c are exponents.
Then simplify it by rewriting the base ([tex]-\frac{5}{7}[/tex]) and adding the exponents of the expression (8 and 9).
You will get the expression simplified and written as a power:
[tex](-\frac{5}{7})^8(-\frac{5}{7})^9=(-\frac{5}{7})^{(8+9)}=(-\frac{5}{7})^{17}[/tex]
Final answer:
To simplify the expression [tex](- 5/7)^8\times (- 5/7)^9[/tex], add the exponents of the same base to get [tex](-5/7)^{17}[/tex], which is the simplified expression written as a power.
Explanation:
To simplify the expression and write the answer as a power when you have [tex](- 5/7)^8\times (- 5/7)^9[/tex], you can use the property of exponents that states when you multiply expressions with the same base, you add their exponents.
This means the simplified expression will be [tex](- 5/7)^8[/tex]+9, which equals [tex](-5/7)^{17}[/tex]. The negative base raised to an odd power remains negative, resulting in a negative final answer.
How much of the purchase will they have to borrow
Answer:
They will have to borrow $ 31,211
(23% of the purchase price)
Step-by-step explanation:
Total price : $135,700
Down payment: 20% of total price
Closing costs : 3% of total price
The Colburns will have to borrow 23% of the total price.
0.23*$135,700 = $ 31,211
Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)
Answer:
X=2 F=6 This works for both equations. Hope this helps!
Step-by-step explanation:
Answer:
The exponential function [tex]f(x)=2(3^x)[/tex] has an initial value of 2. The correct option is 1.
Step-by-step explanation:
The general form of an exponential function is
[tex]g(x)=ab^x[/tex]
Where, a is initial value and b is growth or decay factor.
In option 1, the given function is
[tex]f(x)=2(3^x)[/tex]
Here, the initial value is 2 and growth factor is 3. Therefore the correct option is 1.
In option 2, the given function is
[tex]f(x)=3(2^x)[/tex]
Here, the initial value is 3 and growth factor is 2. Therefore option 2 is incorrect.
A regular- size cereal box is shaped like a rectangular prism. The length of the Box in 8 inches and the width is 2 inches. The volume of the box is 176 cubic inches. A family size cereal box has double the volume of the regular- size box, with the same height and width. What is the length of the family- size cereal box?
Answer:
L: 8in W: 2in H: 22in
Step-by-step explanation:
Which expresion is equivalent to 8x -2y+x+x
Answer:
10x - 2yStep-by-step explanation:
8x - 2y + x + x combine like terms
= (8x + x + x) - 2y
= 10x - 2y
i need help with Algebra. is this a good site?
Answer:
Yes! I use this site all the time and my questions always get answered quickly!
Step-by-step explanation:
Final answer:
Brainly can be a good resource for interactive learning in Algebra. Key areas of study include algebraic expressions, equations, and graphing polynomials. Collaborative activities and practice are recommended for mastering these concepts.
Explanation:
It seems like you're looking for a good online resource to help with Algebra. Brainly can be a good choice for interactive learning and assistance.
When studying Algebra, some key areas you will explore include algebraic expressions, equations, exponents, number patterns, functions, finance and growth, trigonometry, analytical geometry, and statistics.
An excellent way to develop your algebra skills is through practice and application. This includes simplifying algebraic expressions by eliminating terms wherever possible and always checking if your answer is reasonable. Also, engaging in group activities can enhance your understanding as you discuss and solve problems collaboratively.
When learning about graphing polynomials, understanding how the shape of the curve changes as the constants are adjusted is crucial. This graphical perspective reinforces the algebraic concepts taught and provides a visual aid in comprehending the material.
Lin is a camp counselor. She is making small bags of trail mix for campers to take on a hike . She has 2 pounds of raisins and is putting 1/8 pound in each bag . How many bags can she fill before she runs out of raisins ?
Answer:
16 bags
Step-by-step explanation:
To find this, we divide 2 over 1/8, to see how many units of 1/8 fits into that of 2.
[tex]\frac{2}{\frac{1}{8} }[/tex] can be rewritten as 2*8. 2*8 = 16 bags.
Answer:
16 bags
Step-by-step explanation:
We are given that Lin is making small bags of trail mix for campers and has 2 pounds of raisins.
If she puts 1/8 pound in each bag, we need to find out how many bags can she fill before she runs out of raisins.
To find this, we just need to divide the pounds of raisins by the amount of raisins she is putting in each bag.
Number of bags Lin can fill = [tex]\frac{2}{\frac{1}{8} }[/tex] = 16
Step by step answer using factorization method 3p^2+15pq+18q^2
Answer:
3(p + 2q)(p + 3q)
Step-by-step explanation:
Factor out 3 from each term
3(p² + 5pq + 6q²) ← factor the quadratic by
Consider the factors of the q² term which sum to give the coefficient of the pq- term
The factors are + 2 and + 6, since
2 × 3 = 6 and 2 + 3 = 5, hence
3p² + 15pq + 18q²
= 3(p + 2q)(p + 3q)
The quadratic expression [tex]3p^2+15pq+18q^2[/tex] can be factorized by first taking out a factor of 3, then factorizing the remaining quadratic expression. The result is 3(p+2q)(p+3q).
Explanation:To answer your question about factorizing the quadratic expression [tex]3p^2+15pq+18q^2,[/tex] it's important we understand the factorization process.
First, we can take out a factor of 3.
So,[tex]3p^2+15pq+18q^2[/tex] = 3([tex]p^2+5pq+6q^2[/tex])
Now, we factor the quadratic expression [tex]p^2+5pq+6q^2.[/tex]
To factor it, we need to look for two numbers that multiply to 6 and add to 5. The numbers 2 and 3 fulfill this property. Therefore, we can write [tex]p^2+5pq+6q^2[/tex] = (p+2q)(p+3q)
So the factorization of the original expression is 3(p+2q)(p+3q)
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What is the equation in point slope form?
Answer:
y-2=x-5
Step-by-step explanation:
First, I don't remember about how to solve point slope form, just go and search about how to solve point slope form on Google.
a circle is centered O (0,0) and has the radius 3.46410161514 where does poing M (-3,2) lie
The circle area can be defined as x2 + y2 < 3.46^2.
For point M, x2 + y2 = 13.
Since 3.46^2 is about 12, point M is outside the circle!
Answer:
outside the circle
Step-by-step explanation:
The equation of a circle centred at the origin is
x² + y² = r² ← r is the radius = 3.46410161514, hence
x² + y² = 3.46410161514²
x² + y² = 12 ← equation of circle
To determine where a point (x, y) lies
• If x² + y² < r² then point is inside the circle
• If x² + y² = r² then point lies on the circle
• If x² + y² > r² then point lies outside the circle
For (- 3, 2)
(- 3)² + 2² = 9 + 4 = 13 > 12
Hence point (- 3, 2) lies outside the circle
Why did the actor jump out of a window in times square
Answer:
Step-by-step explanation:
To end his suffering
Answer:
He wanted to make a hit on broadway.
Step-by-step explanation:
If an image of a triangle is cungruent to the ppre-image then the scale factor of the dilation must be n
Answer:
1
Step-by-step explanation:
it would be one because then it wouldn't have been dilated cause dilation is a non-rigid transformation and would no have kept the congruence of the original shape.
Can anybody help me please
Answer:
Place one dot at (0,2) and then make the a dot where the line touches a grid square every 2 times
Step-by-step explanation:
The y intercept is 2 and the slope is 2
Answer:
Place one dot at (0,2) and then make the a dot where the line touches a grid square every 2 times
Step-by-step explanation:
Given: PK and PF tangent to circle k(O) K and F points of tangency
Prove: m∠P=m∠EK
Answer:
See explanation
Step-by-step explanation:
If PK and PF are tangent to the circle, then the radii OK and OF are perpendicular to the lines PK and PF respectively.
Consider quadrilateral PFOK. The sum of the measures of all interior angles in quadrilateral PFOK is equal to 360°. Since OK and OF are perpendicular to the lines PK and PF, you have that
∠FOK+90°+∠KPF+90°=360°,
∠FOK=360°-90°-90°-∠KPF=180°-∠KPF.
Angles FOK and KOE are supplementary angles, then
∠KOE=180°-∠FOK=180°-(180°-∠KPF)=∠KPF.
Since angle KOE is central angle, the arc EK has the same measure as angle KOE and as angle KPF.
Given [tex]\(PK\) and \(PF\)[/tex] tangents to circle [tex]\(O\),[/tex] angles [tex]\( \angle P \) and \( \angle EK \)[/tex] are equal by the properties of tangents.
To prove that [tex]\( m\angle P = m\angle EK \)[/tex] given the diagram, we can use properties of tangents and circles. Here is a step-by-step proof:
1. Identify the given information:
- [tex]\( PK \) and \( PF \)[/tex] are tangents to circle [tex]\( k(O) \) at points \( K \) and \( F \),[/tex] respectively.
- [tex]\( O \)[/tex] is the center of the circle.
- [tex]\( PK \) and \( PF \)[/tex] are tangent to the circle, meaning they touch the circle at exactly one point.
2. Use properties of tangents:
- A tangent to a circle is perpendicular to the radius at the point of tangency.
- Thus, [tex]\( OK \perp PK \) and \( OF \perp PF \).[/tex]
3. Mark the right angles:
[tex]- \( \angle OKP = 90^\circ \)[/tex]
[tex]- \( \angle OFP = 90^\circ \)[/tex]
4. Connect the points to form a triangle:
- Draw the line segment [tex]\( OP \).[/tex]
5. Use the exterior angle theorem:
- In [tex]\(\triangle OKP\),[/tex] [tex]\( \angle OPK \)[/tex] is an exterior angle for [tex]\(\angle OKP\) and \(\angle PKO\).[/tex]
- Since [tex]\( \angle OKP = 90^\circ \)[/tex] and [tex]\(\angle PKO\)[/tex] is another angle in the triangle, we have:
[tex]\[ \angle OPK = 180^\circ - (\angle OKP + \angle PKO) = 180^\circ - (90^\circ + \angle PKO) = 90^\circ - \angle PKO. \][/tex]
6. Similarly, in [tex]\(\triangle OFP\):[/tex]
-[tex]\( \angle OFP = 90^\circ \) and \(\angle PFO\)[/tex] is another angle in the triangle.
- Using the same logic as before:
[tex]\[ \angle OEP = 180^\circ - (\angle OFP + \angle PFO) = 180^\circ - (90^\circ + \angle PFO) = 90^\circ - \angle PFO. \][/tex]
7. Note that [tex]\( \angle OKP = \angle P \)[/tex] and [tex]\( \angle OFP = \angle EK \):[/tex]
- By the property of the tangents from the same external point, [tex]\( PK = PF \).[/tex]
- [tex]\( \angle PKO \) and \( \angle PFO \)[/tex] are complementary to [tex]\(\angle P\)[/tex] and [tex]\(\angle EK\)[/tex] respectively.
Therefore, it follows that:
[tex]\[ m\angle P = m\angle EK \][/tex]
Thus, the proof is complete.
What is the exponential regression equation that fits these data?
Answer:
The answer is A (APEX)
Answer:
Step-by-step explanation:
Given is table of x,y as follows:
x y
1 4
2 8
3 27
4 85
5 250
6 600
The nearest seems to be from
y = 1.24(2.84)^x
find the value of y when x equals 0 , -3x-9y=36
Answer:
-3x - 9y = 36
If x = 0
Step-by-step explanation:
1. Plug 0 to x:
-3(0) - 9y = 36
2. Simplify
0 - 9y = 36
3. Cross out the 0 to make the question faster to solve, which now you are left with:
-9y = 36
4. Divide both sides by -9:
-9y/-9 = 36/-9
5. Simplify:
y = -4 <--------Answer
Hope this Helped!!!!!
~Shane
The value of y when x equals 0 in the equation -3x - 9y = 36 is -4.
To find the value of y when x equals 0 in the equation -3x - 9y = 36, we can simply substitute 0 for x and solve for y.
Substituting 0 for x, the equation becomes:
-3(0) - 9y = 36
This simplifies to:
-9y = 36
Dividing both sides of the equation by -9, we get:
y = 36 / -9
This gives us:
y = -4
Therefore, the value of y when x equals 0 is -4.
If the markup is 80% and the selling price is $21.60, what is the cost to the store?
Answer:
$12
Step-by-step explanation:
Let p be the store's cost (cost to buy the product wholesale).
Then the selling price is p + markup, or
p + 0.80p = 1.80 p
and this comes to $21.60.
Dividing $21.60 by 1.80 results in p = $12.
The cost to the store is $12.
Cassie plays a bass drum that has a radius of 3 inches. What is the drum's circumference? Use 3.14 for .
Circumference is 2 times the radius times PI.
2 x 3 = 6
6 x 3.14 = 18.84
The circumference is 18.84 inches.
As shown on the diagram, a regular pyramid has a square base whose side measures 6 inches. If the altitude of the pyramid measures 12 inches, it’s volume, in cubic inches is
Answer:
144 in³
Step-by-step explanation:
The volume of a pyramid of base area A and height h is
V = (1/3)(A)(h).
Here,
V = (1/3)(6 in)²(12 in) = 144 in³
The volume of the given pyramid with a square base whose side measures 6 inches and the altitude of the pyramid measures 12 inches is 144 cubic inches. The value is obtained by applying the formula for the volume of the pyramid as [tex]\frac{1}{3} B_{A}h[/tex].
The volume of the pyramid:The volume of the pyramid is given by the formula:
[tex]V=\frac{1}{3} B_{A}h[/tex]
Where,
[tex]B_A[/tex] is the area of the base of the pyramid and
h is the height or altitude of the pyramid
Calculating the Volume:As shown in the diagram,
The pyramid has a square base whose side measures 6 inches and the altitude of the pyramid is 12 inches
Thus,
Area of the square base,
[tex]B_A =a^{2}[/tex]
⇒ [tex]B_A=6^2[/tex]
⇒ [tex]B_A=36[/tex] sq. inches
Height of the pyramid h = 12 inches
On substituting the values in the formula,
[tex]V=\frac{1}{3}B_Ah[/tex]
⇒ [tex]\frac{1}{3}[/tex] × 36 × 12
⇒ 4 × 36
⇒ 144 cubic inches
Therefore, the volume of the given pyramid is 144 cubic inches.
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the Smith wants to buy a new computer. The regular price is $765 .The store is offering a 30% discount and the sales tax of 6% is added after the discount. What is the final cost of the TV
Answer:
567.63
Step-by-step explanation:
To find the discount, take the original price times the discount percent
discount = 765*30%
= 765 *.3
=229.5
The new price is the original price minus the discount
new price =765-229.5
=535.50
Now we need to find the tax. Tax is the new price times the tax rate
tax =535.5 * 6%
535.5*.06
32.13
To find the final price. we add the tax to the new price
final price = new price + tax
=535.5+32.13
567.63
A smaller number is 3 less than half a larger number. The larger number is 10 times 1 less than the smaller number. Let x represent the smaller number, and let y represent the larger number. Which equation can be used to model the situation? Check all that apply
A. X=1/2y-3
B. 2x-y=-6
C. 2x-y=-3
D. X=1/2(y-3)
E. Y=10(x-1)
Answer:
A and E
Step-by-step explanation:
thats what it is
Give a simple and explained answer: 2. A bag of trail mix weighs 2 lb. By weight, 18% is oats.
(a) Write a percent proportion that can be used to find the weight of the oats in the trail mix.
(b) What is the weight of the oats in the trail mix?
Answer:
oats = (18/100)*(2 lb) = 0.36 lb
Step-by-step explanation: