Lets do the math together.
3.5/2 to find the weight loss per week= 1.75.
We know that every week the friend will reduce her goal by 1.75.
15/1.75= 8.6.
This means that in 8.6 weeks the friend will lose 15 pounds.
I hope this Helps! :)
Hello there! It should take her 8.6 weeks.
Well, the question doesn't specify whether it wants how long it'll take her in weeks, months, or days, so let's go with weeks. To do this, find the unit rate by dividing the amount she lost by the number of weeks it took.
3.5 pounds ÷ 2 weeks = 1.75 pounds lost a week.
Now, divide the total she wants to loose (15 pounds) by the 1.75 pounds a week to see how many she looses in total.
15/1.75 = 8.57142... Which is a little over 8.5 weeks, so we can round up to 8.6 weeks.
What is the mean of the data set? 108, 305, 252, 113, 191. Enter your answer in the box.
please show the work
step by step
Answer:
193.8
Step-by-step explanation:
Add each value together, we get 969.
Divide by the number of values in the set, we get (969)/5, or 193.8
I'm only a few Brainliests away from ranking up, so one would be much appreciated. Thank you!
Answer:
193.8
Step-by-step explanation:
Triangle angle theorems?
What is the value of H?
the measure of those two angles equals 180 since it forms a line
so you add up both angles and set that equal to 180.
(I'll use x as the variable but it's still the same answer)
5x-3+9+x=180
combine like terms
6x+6=180
subtract 6
6x=174
then divide by 6
x=29
To find the value of angle H in a triangle, you subtract the sum of the other two angles from 180. This is based on the triangle angle theorems which state that the sum of the angles in a triangle always equals 180 degrees.
Explanation:In triangle angle theorems, the sum of the angles of a triangle always add up to 180 degrees. If you need to find the value of angle H in your triangle, you'll need to know the measures of the other two angles. For example, if one angle measures 60 degrees and the other measures 50 degrees, you would subtract the sum of these two angles from 180 to find the value of angle H.
Sum of angles in triangle = 180 degrees
So, Angle H = 180 - (60 + 50) = 70 degrees
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Help me with this question
Answer:
Step-by-step explanation:
The sum of the angles in a triangle is 180. So for the triangle on the right:
36 + 84 + x = 180
x = 60
The two angles in the corner add up to 90. So:
60 + y = 90
y = 30
Finally, for the triangle on the left:
30 + 86 + z = 180
z = 64
For what value of a does (1/9)^a+1 =81^a+1 x 27^2-a ?
-4
-2
2
6
Answer:
- 4
Step-by-step explanation:
Using the rule of exponents
• [tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]
• [tex]a^{-m}[/tex] ⇔ [tex]\frac{1}{a^{m} }[/tex]
[tex](\frac{1}{9}) ^{a+1}[/tex] = [tex]9^{-(a+1)}[/tex] = [tex]3^{-2(a+1)}[/tex]
and right side
= [tex]3^{4(a+1)}[/tex] × [tex]3^{3(2-a)}[/tex]
Hence
[tex]3^{-2a-2}[/tex] = [tex]3^{4a+4}[/tex] × [tex]3^{6-3a}[/tex]
[tex]3^{-2a-2}[/tex] = [tex]3^{a+10}[/tex]
Equating exponents on both sides gives
a + 10 = - 2a - 2 ( add 2a to both sides )
3a + 10 = - 2 (subtract 10 from both sides )
3a = - 12 ( divide both sides by 3 )
a = - 4
Answer:
the answer to the question you is A on edg
Step-by-step explanation:
Isabella has $6,000. She gave her mother $1,800. She donated 1/4 of the remaining amount to a charity. What percent of her money did Isabella donate? *
6,000 - 1,800 = 4,200
4,200 / 1/4 (or 25)
she donated 168.0% of her money.
Answer:
Step-by-step explanation:
6000-1800 = 4200 divided by 1/4 = 1050
A bent coin has probability 0.55 of landing heads up. What is the probability that two tosses of the coin will both result in heads?
Use four decimal places in your answer.
Answer:
Required probability is 0.3025.
Step-by-step explanation:
Given that probability of landing heads up in a toss of bent coin = 0.55
Then probability of getting head in 1st toss = 0.55
2nd toss is independent of the first toss.
Then probability of getting head in 2nd toss = 0.55
Hence probability of getting head in two tosses of the coin = (0.55)(0.55) =0.3025
Hence required probability is 0.3025.
Answer:
0.3025
Step-by-step explanation:
Given:
The probability of landing heads P(h) = 0.55
The probability of landing heads when the coin is tossed again is 0.55 as both the events are independent and we are given the probability of heads P(h) = 0.55
So,
The probability of getting 2 heads in a row=0.55*0.55
=0.3025
If X-A=B what is X???
We have that the value of matrix x is is mathematically given as
X={-7 -2;7 0}Option A
From the question we are told
If X-A=B what is X
MatrixGenerally the equation for Matrix is mathematically given as
X=B+A
Therefore
X=B{-9 5; 1 -1}+A{2 -7;6 1}
X={-7 -2;7 0}
Therefore
X={-7 -2;7 0}
Option A
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find m1
please helpp
Answer:88 degrees
Step-by-step explanation:
88 degrees is the correct answer
If f(x) = |x| and g(x)= |x| -4 which translation is applied to f(x) to her g(x)
Answer:
The translation is 4 down.
Step-by-step explanation:
Simplest form of (36^)1/3
3,301927249 = ³√36
As discussed in one of my videos on my channel [USERNAME: MATHEMATICS WIZARD] on the Six Rational Exponential Rules, this one states that with a numerator of 1 in the exponent, you take the multiplicative inverse [reciprocal] of the fraction, and set the whole number equal to the root, bringing your a inside the radical, which is 36.
ⁿ√aᵐ = aᵐ\ⁿ → works for both: numerator ≥ 1
I am joyous to assist you anytime.
Jeanine bought a new pair of hiking boots on sale door 15% off the regular price. If the regular price was $115.00, how much did jeanine pay for the hiking boots
Answer:
$97.75
Step-by-step explanation:
since its 15% off, the price would be 85% of its original price.
85/100 x $115 = $97.75
Jeanine paid $97.75 for the hiking boots after receiving a 15% discount on the regular price of $115.00. The discount was calculated by converting the percentage to a decimal and multiplying it by the regular price, then subtracting it from the regular price.
Jeanine bought hiking boots with a 15% discount off the regular price of $115.00. To calculate how much Jeanine paid for the hiking boots, we first need to find the amount of the discount. The discount amount is calculated as 15% of the regular price.
The calculation for the discount is as follows:
Convert the percentage to a decimal by dividing by 100: 15% / 100 = 0.15.
Multiply the regular price by the decimal: $115.00 imes 0.15 = $17.25.
Subtract the discount from the regular price: $115.00 - $17.25 = $97.75.
Thus, Jeanine paid $97.75 for the hiking boots.
how to factor 25v^2+5v^2+30v+6 (please show work)
So you have:
25v² + 5v² + 30v + 6
First you combine the like terms (all of the v²)
25v² + 5v² + 30v + 6
= 30v² + 30v + 6 (25v² + 5v² = 30v²)
Now notice that the largest common factor of all those numbers is 6. So you can take out a factor of 6:
30v² + 30v + 6
= 6 (5v² + 5v + 1)
----------------------------------------------------------
Answer:
25v² + 5v² + 30v + 6
= 30v² + 30v + 6
= 6 (5v² + 5v + 1)
Which function has two x-intercepts, one at (0, 0) and one at (4, 0)? f(x) = x(x − 4) f(x) = x(x + 4) f(x) = (x − 4)(x − 4) f(x) = (x + 4)(x + 4)
If you want a polynomial to have the x-intercepts of your choice, you simply have to build a polynomial by multiplying pieces like [tex](x-x_k)[/tex] where [tex]x_k[/tex] is the x-intercept you want.
So, if you want x-intercepts 0 and 4, you have to build the polynomial
[tex](x-0)(x-4) = x(x-4)[/tex]
The function that has x-intercepts at (0, 0) and (4, 0) is f(x) = x (x − 4).
Option A is the correct answer.
What is a function?A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
The x-intercepts of a function are the points where the graph of the function crosses the x-axis.
At these points, the value of the function is zero.
To have x-intercepts at (0, 0) and (4, 0), the function must be zero when x is equal to 0 and 4.
Let's evaluate the given options:
f(x) = x(x − 4):
This function is zero at x = 0 and x = 4, so it has x-intercepts at (0, 0) and (4, 0).
f(x) = x(x + 4):
This function is zero at x = 0 and x = -4, so it does not have an x-intercept at (4, 0).
f(x) = (x − 4)(x − 4):
This function is zero at x = 4, but it also has a double root at x = 4, so it only has one x-intercept at (4, 0).
f(x) = (x + 4)(x + 4):
This function is zero at x = -4, but it does not have an x-intercept at (0, 0).
Therefore,
The function that has x-intercepts at (0, 0) and (4, 0) is f(x) = x(x − 4).
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This problem is worth 20 points! Please Help ASAP!!!!!!! You don't need to show work!
Pamela has a box that contains six books of fiction, seven books of humor, five books of plays, and two books of adventure. She removes one book from the box at random. Then places the book back in the box and randomly removes another book. What is the probability that Pamela first removes a book of humor followed by a book of plays?
A. 3/5
B. 1/8
C. 7/26
D. 7/80
Answer:
D.7/80
Step-by-step explanation:
⇒The question is on probability with replacement
⇒The events taken in this probability are independent of each other
⇒Formulae for combined probability of these events is the product of the probabilities of the event
Given;
6 books for fiction, F=6
7 books for humor, H=7
5 books for play, P=5
2 books for adventure, A=2
Evaluating
n(S)=6+7+5+2=20
P(H)=7/20
P(P)=5/20
P(H ∩ P)=P(H)×P(P)
7/20 × 5/20 =7/80
figure 1 is dilated yo get figure 2 what is the scale factor figure 1 24 figure 2 8
Answer:
1/3
Step-by-step explanation:
Find two corresponding sides that have lengths.
24 in Figure 1 corresponds to 8 in Figure 2.
Divide the length in Figure 2 by the corresponding length in Figure 1.
scale factor = (length in Figure 2)/(corresponding length in Figure 1)
scale factor = 8/24
scale factor = 1/3
A wise women once said "650 reduced by triple my age is 452." What is her age?
Answer:
She is 66 years old.
Step-by-step explanation:
If you minus 452 from 650, you get 198.
198 (the whole amount taken from 650) and divide it by 3: you get 66.
Answer:
She is 66 years old.
Step-by-step explanation:
If you minus 452 from 650, you get 198.
198 (the whole amount taken from 650) and divide it by 3: you get 66.
Can u pls help I’ll help back I don’t want to fail!!!:(((((((:[
It looks like the practice ones are all that matter so I'm only going to answer those. If you need the others answered let me know.
1. 5k-9=-3k+7
Add 9 to both sides: 5k-9+9=-3k+7+9
5k=-3k+16
Add 3k to both sides: 5k+3k=-3k+16+3k
(You are adding 3 and 9 instead of subtracting them because in the equation, they are negative numbers and you have to do the opposite operation to get rid of them.)
8k=16
Divide both sides by 8: 8k/8=16/8
k=2
2. 2(w-3)+5=3w-2
Use the distributive property: 2*w-2*3+5=3w-2
2w-6+5=3w-2
Combine like terms: 2w-1=3w-2
Add 1 to both sides: 2w-1+1=3w-2+1
2w=3w-1
Subtract 3w from both sides: 2w-3w=3w-1-3w
-w=-1
Divide both sides by -1: -w/-1=-1/-1
w=1
3. 8t+9=7t+6
Subtract 9 from both sides: 8t+9-9=7t+6-9
8t=7t-3
Subtract 7t from both sides: 8t-7t=7t-3-7t
t=-3
Gianna and her children went into a movie theater and she bought $77.50 worth of bags of popcorn and pretzels. Each bag of popcorn costs $6.50 and each pretzel costs $4.75. She bought a total of 13 bags of popcorn and pretzels altogether. Determine the number of bags of popcorn and the number of pretzels that Gianna bought.
Answer:
4 pretzels and 9 popcorn
Step-by-step explanation:
x=popcorn and y=pretzels
x+y=13 solve for x
x=13-y
6.5x+4.75y=77.5 plug 13-y in for x
6.5(13-y)+4.75y=77.5 distribute
84.5-6.5y+4.75=77.5 combine like terms
84.5-1.75y=77.5
-84.5 -84.5
-1.75y=-7 divide both sides by -1.75
*y=4* plug into x+y=13
x+4=13 subtract 4 from each side
*x=9*
Plz help math matitions
For this case we have that by definition, the circumference of a circle is given by:
[tex]C = \pi * d[/tex]
Where:
d: It is the diameter of the circle
We have as data that:
[tex]C = 6 \pi[/tex]
So:
[tex]6 \pi = \pi * d[/tex]
Thus, the diameter of the circle is 6, therefore the radius is 3.
The area of a circle is given by:
[tex]A = \pi * r ^ 2[/tex]
Where:
r: It is the radius of the circle
[tex]A = \pi * 3 ^ 2\\A = 9 \pi[/tex]
Answer:
Option B
Answer:
9π in. ²
Step-by-step explanation:
The circumference of a circle is diameter times pi.
To find the area of a circle, you multiply the radius by itself, and the product by pi.
Diameter (6 in.) divided by two equals the radius (3 in.).
3 x 3 = 9 in.²
Then multiply by pi to get, 9π in.²
Hope this helps! :)
[tex]x^2+3=3-x[/tex]
Answer:
x= 0 and x = -1
Step-by-step explanation:
Solving the equation:
[tex]x^2 +3 = 3-x[/tex]
Adding -3 on both sides
[tex]x^2 +3-3 = 3-3-x[/tex]
[tex]x^2 = -x[/tex]
Rarranging
[tex]x^2 +x= 0[/tex]
Solving quadratic equation using quadratic formula
[tex]x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
where a = 1 , b =1, c= 0
[tex]x=\frac{-1\pm\sqrt{(1)^2-4(1)(0)}}{2(1)}\\x=\frac{-1\pm\sqrt{1-0}}{2}\\x=\frac{-1\pm\sqrt{1}}{2}\\x=\frac{-1\pm1}{2}\\x = \frac{-1+1}{2} \,\,and\,\, x=\frac{-1-1}{2}\\x= \frac{0}{2} \,\,and\,\, x=\frac{-2}{2}\\x=0 \,\,and\,\, x= -1[/tex]
So, x= 0 and x = -1
The answer should be x = [0, -1]
Add 3 to the product of 12 and the sum of 14 and 19
Answer:
399
Step-by-step explanation:
(Very easy) Find the surface area of this figure. Leave the answers in pi if applicable.
Answer:
36π cm cubed
Step-by-step explanation:
Surface area of a cylinder is 2πr^2 + 2πrh
4 cm is the diameter in the image, so the radius is 2 (4/2)
7 is the height
π2(2^2) + π2(2)(7)
8π + 28π
36π
The answer above me is right
Use the function f(x) = 2x3 - 3x2 + 7 to complete the exercises.
f(−1) =
f(1) =
f(2) =
Answer:
Step-by-step explanation:
The value of the function f(x) at x=a can be determined by substituting a instead of x into the function expression.
1. When x=-1, then
f(-1)=2\cdot (-1)^3-3\cdot (-1)^2+7=-2-3+7=2.
2. When x=1, then
f(1)=2\cdot 1^3-3\cdot 1^2+7=2-3+7=6.
3. When x=2, then
f(-1)=2\cdot 2^3-3\cdot 2^2+7=16-12+7=11.
Answer:
f(-1)=2
f(1)=6
f(2)=11
Step-by-step explanation:
The given function is [tex]f(x)=2x^3-3x^2+7[/tex]
Substitute x = -1 to find the value of f(-1)
[tex]f(-1)=2(-1)^3-3(-1)^2+7\\\\=-2-3+7\\\\=2[/tex]
Thus, f(-1)=2
Substitute x = 1 to find the value of f(1)
[tex]f(1)=2(1)^3-3(1)^2+7\\\\=2-3+7\\\\=6[/tex]
Thus, f(1)=6
Substitute x = 2 to find the value of f(2)
[tex]f(2)=2(2)^3-3(2)^2+7\\\\=16-12+7\\\\=11[/tex]
Thus, f(2)=11
True or False: 3( 12-8 )
______
2.5-4 = 2
Answer: False
Step-by-step explanation:
Which of the following are quadratic functions?
A $79 television is on sale for $65. What percent discount was given?
The percentage of the discount given on television is 17.72%.
What is the percentage?The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.
Given that a $79 television is on sale for $65. The percentage of the discount will be calculated as:-
Discount% = ( Original price - Discounted price ) / Original price
Discount% = ( 79 - 65 ) / 79
Discount% = 17.72%
Therefore, the discount per cent on television is 17.72%.
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Rewrite the point-slope equation in slope-intercept form: y - 3 = 2(x + 4) A) y = 2x + 5 B) y = 2x + 7 C) y = 2x + 9 D) y = 2x + 11
The point-slope equation y - 3 = 2(x + 4) can be rewritten in slope-intercept form by distributing the slope and adding 3 to both sides, resulting in y = 2x + 11, which is option D.
Explanation:To rewrite the point-slope equation y - 3 = 2(x + 4) into slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept, we need to solve for y. Here is the step-by-step process:
Distribute the slope 2 across the expression (x + 4): y - 3 = 2x + 8.Add 3 to both sides of the equation to isolate y: y = 2x + 11.The resulting slope-intercept form of the equation is y = 2x + 11, which corresponds to option D.
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When parallelogram EFGH is rotated 180° counterclockwise about the origin to create parallelogram E'F'G'H', what is the measure of angle G'?
Answer:
The measure of angle G is 108 Degrees, hope this helps.
Step-by-step explanation:
Find the infinite geometric sum of 80 + 10 +1.25 + ... to 5 decimal places past the decimal point.
To find the infinite geometric sum of the series 80 + 10 + 1.25 + ..., use the formula S = a / (1 - r), with 'a' as the first term and 'r' as the common ratio. Apply the significant figures principle for accurate rounding when approximating to a certain number of decimal places.
Explanation:The student's question involves finding the infinite geometric sum of the series 80 + 10 + 1.25 + .... To determine this sum, we use the formula for the sum of an infinite geometric series, S = a / (1 - r), where 'S' is the sum of the series, 'a' is the first term, and 'r' is the common ratio between terms. In this series, 'a' is 80, and the common ratio 'r' can be found by dividing the second term by the first term, which is 10/80 or 1/8.
Plugging the values into the formula gives us S = 80 / (1 - (1/8)) which simplifies to S = 80 / (7/8) = 80 * (8/7) = 640/7. Calculating this yields an infinite sum which can be approximated to decimal places as needed.
For precise calculations, especially when rounding to a certain number of decimal places or significant figures, the rules of significant figures must be followed. As the sample information shows, if a number in the tenths place is to be dropped and it's greater than 5, we round up to ensure the final value adheres to the significant figures principle, consistently providing a more accurate and professional result.
In which of the following intervals is the average rate of change greater for f than for g
Answer: Option B
[3, 5]
Step-by-step explanation:
The function g(x) is a line of slope m = 4. Therefore, its rate of change is constant and equal to 4.
The rate of change of the function f(x) in the interval [tex][x_1, x_2][/tex] is calculated with the following formula
[tex]m =\frac{y_2-y_1}{x_2 - x_1}[/tex]
Note that the rate of change of the function increases as x increases.
For example
For [-1, 0]
[tex]m =\frac{4-3.5}{0 - (-1)}[/tex]
[tex]m =\frac{1}{2}[/tex]
[tex]\frac{1}{2}<4[/tex]
For [0, 2]
[tex]m =\frac{7-4}{2 - 0}[/tex]
[tex]m =\frac{3}{2}[/tex]
[tex]\frac{3}{2}<4[/tex]
For [1, 3]
[tex]m =\frac{11-5}{3-1}[/tex]
[tex]m =3[/tex]
[tex]3<4[/tex]
For [3, 5]
[tex]m =\frac{35-11}{5-3}[/tex]
[tex]m =12[/tex]
[tex]12>4[/tex]