Answer:
20x-13210x+300=10x+168What is the perimeter of the pentagon
Answer:
60
Step-by-step explanation:
To find the perimeter, you have to add up all the sides, like you have done.
This is 12+12+12+12+12 which is the same as 12*5 which is 60!
Hope this helps!
Sonya wrote each letter of LEDBETTER on a separate index card and put the cards in a box. She picked one letter at random, put the card back, and then repeated the experiment. If she performed this experiment 90 times, which is the best prediction for the number of times that Sonya would pick a T?
Answer: 20
Step-by-step explanation:
Given, Sonya wrote each letter of LEDBETTER on a separate index card and put the cards in a box.
Total letters = 9
Number of times T appeared = 2
Thus, if we pick one card , the probability of getting card with T would be :-
[tex]\dfrac{\text{Number of times T appeared}}{\text{Total letters}}\\\\=\dfrac{2}{9}[/tex]
If she performed this experiment 90 times, then the best prediction for the number of times that Sonya would pick a T would be :
90 x ( probability of getting card with T)
[tex]=90\times\dfrac{2}{9}=10\times2=20[/tex]
Hence, the the best prediction for the number of times that Sonya would pick a T = 20.
Which expressions best represents the area of the rectangle
Answer:
4x
Step-by-step explanation:
a sound wave has a frequency of 627 hz and a wavelength of 3.25 m. what is the speed of the wave?
Answer:
2037.75m/s
Step-by-step explanation:
To calculate the speed of a wave, you need to multiply the wavelength by the frequency. In this case, 627*3.25=2037.75m/s. Hope this helps!
The speed of a sound wave with a frequency of 627 hz and a wavelength of 3.25 m is calculated using the formula v = f λ, where v is the speed, f is the frequency, and λ is the wavelength. Multiplying the given frequency and wavelength gives a speed of 2037.75 m/s for the sound wave.
Explanation:The speed of a sound wave is calculated by multiplying its frequency by its wavelength using the formula v = f λ, where v is the speed of the wave, f is the frequency, and λ (lambda) is the wavelength.
Given that the frequency of the sound wave is 627 hz and the wavelength is 3.25 m, we can substitute these values into the formula to find the speed:
v = 627 hz × 3.25 m
Now, let's perform the multiplication to solve for v:
v = 2037.75 m/s
Therefore, the speed of the sound wave is 2037.75 meters per second.
Write the standard equation of the circle with center (0, 1) passing through the point (4, 9).
A. x2 + (y + 1)2 = 40
B. (x − 1)2 − y2 = 80
C. x2 + (y − 1)2 = 80
D. (x + 1)2 + y2 = 40
pls help! will give brainlist!
what is the value of x?
a. 60 degrees
b. 50 degrees
c. 40 degrees
d. 70 degrees
Answer:
A. 60°
Step-by-step explanation:
There's a very straight-forward explanation for this, thank god! XD
For this type of problem, there's a rule to follow for the outside angle. X and 120 should equal 180, so all you need to do is fill that gap.
180-120 = 60
60 is your answer because it completes the whole angle.
A girl and a boy each randomly grab a piece of candy from a bowl containing 9 pieces of chocolate, 7 fruit chews, 9 lollipops, and 9 peppermints. Find the probability that both events A and B will occur. Give your answer a reduced fraction.
Event A: A girl grabs a lollipop
Event B: A boy grabs a fruit chew
Step-by-step explanation:
Answer: event a: 11
Event b: 4
Step-by-step explanation:
Since There are 44 cans in total, Event Will get 11 candies and event b Will get 4 candies.
Solve this problem:
X+7=12
Answer:
x=5
Step-by-step explanation:
because 5+7=12
you can figure it out by doing 12-7=?
the answer is 5 and thats your x
Determine the intercepts of the line.
Answer:
see explanation
Step-by-step explanation:
To find the x- intercept, where the line crosses the x- axis, let y = 0 in the equation and solve for x, that is
11x + 6 = 0 ( subtract 6 from both sides )
11x = - 6 ( divide both sides by 11 )
x = - [tex]\frac{6}{11}[/tex] , thus coordinates of x- intercept are
( - [tex]\frac{6}{11}[/tex], 0 )
To find the y- intercept, where the line crosses the y- axis, let x = 0 in the equation and solve for y, that is
y = 11(0) + 6 = 0 + 6 = 6, thus coordinates of y- intercept are
(0, 6 )
A ribbon that is 22 3/4 inches long has to be divided into 7 equal pieces
Answer:
each piece will be 3 1/4 inches
Step-by-step explanation:
22 3/4 can be rewritten as 91/4. to divide, you use keep, change, flip (keep the first fraction, change the sign, and flip the second fraction) . u will end up with 91/4 times 1/7, which is 91/28 or 3 1/4
Each piece of ribbon will be 3(1/4) inches.
What is expression?Expressions is the defined as mathematical statements that have a minimum of two terms containing variables or numbers.
[tex]22\dfrac{3}{4}[/tex]
This expression can be rewritten
[tex]\dfrac{88+3}{4} = \dfrac{91}{4}[/tex]
Since ribbon has to be divided into 7 equal pieces
[tex]\dfrac{\dfrac{91}{4}}{7}[/tex]
[tex]\dfrac{91}{4} \times\dfrac{1}{7}[/tex]
[tex]\dfrac{91}{28} = \dfrac{13}{4}[/tex]
[tex]3\dfrac{1}{4}[/tex]
Learn more about expression here:
brainly.com/question/13947055
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The triangle shown below has an area of 444 units^2
2
squared.
Find the missing side.
i need this rn
Answer:
2 units
Step-by-step explanation:
First, let's set up an equation using the formula for the area of a triangle.
Then, see the attached photo on how I did it.
The answer: x = 2 units
Solve the system of equations:
2x-5y=-22
X+7y=27
10 x ( -9 + (-6) )
--------------------------
Answer:
This graph will help you.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Approximately what are the zeros of this parabola?
Answer:
The zeros are approximately -1.65 and 3.65.
NEED HELP PLEASE: The pyramid shown has a regular hexagon as a base. What is the literal area of the pyramid?
Answer:
864cm squared
Step-by-step explanation:
Formula for Lateral Area:
Lateral Area=1/2* (Perimeter of the Base)*Height
The Perimeter of the Base = 72cm
Height = 24
Answer = 1/2* 72* 24
Answer = 864cm squared
Brahmagupta’s solution to a quadratic equation of the form ax2 + bx = c involved only one solution. Which solution would he have found for the equation 3x2 + 4x = 6? x = x = x = x =
Answer:
A on edg.
Step-by-step explanation:
Snow Mountain Ski Resort offers a special season pass at the beginning of each ski season. The pass costs $35, and an additional $25 is charged each time you ski. Write the equation of this line in slope intercept form.
y = 25x + 35
35 is the original amount or your y intercept
25x is the slope since it is how much your cost increases by every time you ski
what is the equation of the line?
Answer:
x=3
Step-by-step explanation:
try different values on the line! plug them in and you'll see that every x value is 3!
Answer:
x=3
Step-by-step explanation:
Because there is no slope (or the slope is undefined), there is another way to write the equation. Instead of y=mx+b, it will be either x=b or y=b, y=b being a horizontal line and x=b being vertical. To find b, simply find the value of x or y. The line has infinite points on it with one similarity, being their x value is 3. Hence, the equation is x=3.
The student council at Richmond High School
is made up of 646 female students 229
seniors, and 6% female seniors.
If a student is selected at random, what is the
probability, as a decimal to the nearest
hundredth, that the student is female given that
the student is a senior?
Answer:
[tex]P(F/S)=0.216[/tex]
Step-by-step explanation:
Let's call F the event that the student is female and S the event that the student is senior.
So, we need to find the probability P(F/S) that a student is female given that the student is a senior. P(F/S) is calculated as:
P(F/S) = P(F∩S)/P(S)
Then, the probability P(F∩S) that a student is female and senior is equal to 0.06
On the other hand, we can calculate the total number of students x using the following equation as:
[tex]\frac{646}{x}+\frac{229}{x}-0.06=1[/tex]
Where 646/x is the percentage of female students, 229/x is the percentage of senior students and 0.06 is the percentage of female seniors.
Then, solving for x we get that the number of students is 825.4719
Additionally, the probability P(S) that a student is a senior is equal to:
[tex]P=\frac{229}{825.47} =0.2774[/tex]
Because there are 825.47 students and 229 are senior.
So, P(F/S) is equal to:
[tex]P(F/S)=\frac{0.06}{0.2774}=0.216[/tex]
Plz answer with explanation will give brainliest
Answer:
B: |8| + (-7)
Step-by-step explanation:
When you are looking for the distance between two numbers, always add. The distance between 8 and -7 is 15 (|8| = 8). If, for instance, the answer was negative, which it is now, just find the absolute value of -15 which equals 15. The answer is B.
SOS I NEED ANSWER RIGHT NOW SOMEONE PLEASE HELP ME :(
Answer:
The functions share a y intercept of -1
Step-by-step explanation:
Both functions cross the y axis and y=-1 and x=0
They both have the same y intercept
A spinner is split into 4 equal parts labeled 1, 2, 3, and 4.
What is the probability of landing on an even number? (Write your final answer as a percentage.)
P(event) =
1.17 − 0.07a + (−3.92a) What is this ????
Answer: 17-3.99a
Step-by-step explanation:
Remove parentheses.
17- 0.07a- 3.92a17−0.07a− 3.92a
Collect like terms.
17+(−0.07a−3.92a)
Simplify.
17−3.99a
Which best explains what happens during crossing over?
A. The chromosomes have electrical connections that allow them to line up randomly.
B. Paired chromosomes overlap and portions of DNA switch between chromosome.
C. Genetic material is switched because the chromosomes line up independently.
D. Chromosomes line up randomly and cross genetic information between unpaired chromosomes.
Answer:
B
Step-by-step explanation:
use the equation tool to complete the table y= -670+33 (X)
Table:
X value Y value
40 650
41 683
42 716
43 749
44 ?
Answer:
782
Step-by-step explanation:
y = -670 + 33(44)
y = -670 + 1452
y = 782
Step-by-step explanation:
Step 1: Find y when x is 44
[tex]y = -670 + 33x[/tex]
[tex]y = -670 + 33(44)[/tex]
[tex]y = -670 + 1452[/tex]
[tex]y = 782[/tex]
Answer: [tex]? = 782[/tex]
9+9-4-123456-5431-87+0-6=5 x 3
answer please!!!!1
Answer:
-177,856 does not equal 15
-177,856=15
Please please help:p
Answer:
y = [tex]\frac{6}{19}[/tex]
Step-by-step explanation:
an Exothermic reaction _____ Energy
Answer:
An exothermic reaction releases energy
Step-by-step explanation:
Answer:
releases
Step-by-step explanation:
Answer for Founder's Education/Educere
What is the volume of this right triangular prism?
Answer:
To calculate the volume of a triangular prism, measure the width and height of a triangular base, then multiply the base by the height by 1/2 to determine the triangle's area. Next, measure the height of the triangular prism and multiply this by the triangle's area to get the volume.
Step-by-step explanation:
Answer:
LXWXH
Step-by-step explanation:
NEED HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!! First one who help will be marked brainliest