Answer:
D-2
Step-by-step explanation:
You can use elimination to get the value of y. Move numbers to one side and x and ys to the other side. To use elimination, multiply the first equation with 2. You will get 2x+2y=24. add it with the equation below. y will be eliminated and you will get the value of x. X=10. Plug in x and get the y value. Y=2
Find the exact value of x. Do the sides lengths form a Pythagorean triple?
ZABD and ZDBC are supplementary angles.
What is the measure of x?
x = [?]°
D
As
126
B
-С
Angles are not drawn to scale.
Enter
x=54°
Answer:
x+126=180 supplementary
x=180-126
x=54
In parallelogram ABCD if ZA equals 155° what is the measure of ZB
Answer:
25 degrees
Step-by-step explanation:
Because it is
If f(x) = V7x + 31 , find f(0).
Answer:
f(0) = 31
Step-by-step explanation:
We are given the following function:
[tex]f(x) = \sqrt{7x} + 31[/tex]
f(0).
This is the value of f when [tex]x = 0[/tex]. So
[tex]f(0) = \sqrt{7*0} + 31 = \sqrt{0} + 31 = 0 + 31 = 31[/tex]
So f(0) = 31
Sarah randomly surveyed 80 students at her school. She found that 15 out of the 80 students she surveyed chose pizza as their favorite school lunch option. If there are 700 students at her school, predict how many students at her school would choose pizza as their favorite lunch option. If the answer you get is a decimal, how do you interpret that?
Answer:
131
Step-by-step explanation:
15/80 = x/700
80x = 10,500
x = 131.25
you cannot have 0.25 of a person so you must round down to the nearest integer
According to a study done by De Anza students, the height for Asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. Suppose one Asian adult male is randomly chosen. Let X = height of the individual. a. X ~ __N___(_66____,__2.5___) b. Find the probability that the person is between 65 and 69 inches. Include a sketch of the graph, and write a probability statement.
Answer:
0.54035
Step-by-step explanation:
Given that :
Mean, m = 66 inches
Standard deviation, s = 2.5 inches
P(65 < X < 69)
P(X < 69) - P(X < 65)
((69 - 66) / 2.5) - ((65 - 66) / 2.5)
P(Z <(3/ 2.5)) - P(Z <(-1 / 2.5))
P(Z < 1.2) - P(Z < - 0.4)
0.88493 - 0.34458
= 0.54035
plz help will give crown
Answer:
from what i can see, your correct. its the last one.
Step-by-step explanation:
hope this helps and please give brainly
What is the value of y in the equation 2(4y - 1) = 6?
A: 0
B: 1
C: 6
D: 8
Answer:
Step-by-step explanation:
Fist we multiply the values:
2*4y-2*1=6
8y-2=6
8y=6+2
8y=8
y=8:8
y=1
Can you please help me :)
Answer:
1) n = 24
2) m = 18
3) x = 15
4) m = 30
y = 3
m = 2
k = 45
x = 4
k = 80
Step-by-step explanation:
Brainliest pls
Answer:
Sorry I dont have time to put all the answers but here is the answers for 1-4
1. n=24
n-8=16
using opposite rule
n=16+8
n=26
2. m=18
2m=36
opposite rule
m=36÷2
m=18
3. x=15
x+5=20
opposite rule
x=20-5
4. m=30
[tex] \frac{m}{5} = 6[/tex]
m=6×5
m=30
I need work shown as well
Please help, I'll give brainliest
Answer:
76+2x=90
2x=90-76
2x=14
x=14/2
x=7
Ed has 4 cards.
There is a number on each card.
12
6
15
?
The mean of the 4 numbers on Ed's cards is 10
Work out the number on the 4th card.
Answer:
7
Step-by-step explanation:
Let's call the missing card number "x".
The mean is the sum divided by the number of elements, so we know that:
[tex]\frac{12 + 6 + 15 + x}{4} = 10\\~\\12 + 6 + 15 + x = 40\\33 + x = 40\\x = 7[/tex]
The number on the 4th card is 7 according to the given question when The mean of the 4 numbers on Ed's cards is 10
To work out the number on the 4th card, we can use the information given about the mean of the four numbers.
Mean is calculated by summing all the values and then dividing by the number of values. In this case, the mean is 10 and there are four numbers.
Given:
Mean = 10
Number of cards = 4
To find the sum of the four numbers, we multiply the mean by the number of cards:
Sum of the four numbers = Mean * Number of cards
Sum of the four numbers = 10 * 4
Sum of the four numbers = 40
Now, let's find the number on the 4th card. We subtract the sum of the three known numbers from the sum of the four numbers:
Number on the 4th card = Sum of the four numbers - Sum of the three known numbers
Number on the 4th card = 40 - (12 + 6 + 15)
Number on the 4th card = 40 - 33
Number on the 4th card = 7
Therefore, the number on the 4th card is 7.
To know more about "mean." here
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Full question
Ed has 4 cards.
There is a number on each card.
12
6
15
?
The mean of the 4 numbers on Ed's cards is 10
Work out the number on the 4th card.
( No graph Needed)
Which. Stem and leaf plot represents the data set below 56,113,89,85,96,104,65,67,72,88,97
Answer:
i think 88 sorry for puting under answer because i thin k ti's the answer and i dont get the question so i tried on a pieace of paper and i go this 88
Step-by-step explanation:
i think 88 sorry for puting under answer because i thin k ti's the answer and i dont get the question so i tried on a pieace of paper and i go this 88
Answer:
72
Step-by-step explanation:
hope it helps
i tried tp compute it on a piece of paper and 72 is the result
Please help and answer!!!!
Answer:
B!
Step-by-step explanation:
the sample space is basically just a list of every possible out come that could happen. in this case it is just the numbers the spinner could hit in one spin!
Answer:
The answer is B!
Step-by-step explanation:
0_____________________________________0
The face says brainliest please!
The floor of Aisha’s rectangular bedroom has an area of 144 feet squared. Which are possible dimensions of her bedroom? Select three options. 14.4 ft by 10 ft 6 ft by 12 ft 8 ft by 9 ft 8 ft by 18 ft 9 ft by 16 ft
Answer: The correct options are
14.4 ft. by 10 ft.
8 ft. by 18 ft.
and 9 ft. by 16 ft.
I think.
Answer:
A. 14.4 ft by 10 ft
D. 8 ft by 18 ft
E. 9 ft by 16 ft
Step-by-step explanation:
I hope this helped
5. A certain company stock began at a starting price of $23
per share. After five weeks of trading, the new company
stock has changed price every week, x, according to the
function h(x) 25(0.93).
Which
to the
Which of the following is true?
A.
В.
F. The stock has increased by 93% of its original value.
C.
G. The stock has lost 7% of its value every week.
D.
H. The stock is worth $23.25 per share after five weeks.
J. The stock has more than doubled its original value.
Answer:
$ 35 .00
Step-by-step explanation:
..............................
Volume of a cylinder with radius r and height h is
Answer:
[tex]h = \frac{v}{\pi r^{2} }[/tex]
Step-by-step explanation:
How many years would it take Brittney to make $20,000 in interest using a interest investment of $200,000 in principal at 5% return?
How many unique triangles can be drawn side lengths of 2 inches and 4 inches. With an angle of 40degrees between given sides
Answer:
hope it help mark me as a brill
Step-by-step explanation:
Hello it would be 3 squares
The answer is 1
A box contains 3 black pens, 7 blue pens and 5 red pens. Without replacing the first pen,
what is the probability of pulling a red or blue pen?
Answer:12/15
Step-by-step explanation: first you add 7+5=12
then add 12+3=15
Which ordered pair is a solution of 9(x – 2)2 – 4(y + 5)2 ≥ 36?
Answer:
C, (–7.5, –5)
Step-by-step explanation:
THE TOPIC IS: AREA OF CIRCLES!! PLEASE HELP ME WITH THIS QUESTION!!! WHATS THE ANSWER?? I WILL GIVE YOU BRAINLIEST AND A THANKS!!! THANK YOUUU!!! <33
Answer:
50.24
Step-by-step explanation:
The formula for area is pi · r²
But, because usually people want it simplified instead of a ton of decimal numbers following, pi is rounded to 3.14. And the radius in this case is 4. And the ² means squared, so we have to do 4 · 4 to square it.
So, now our formula is 3.14 · 4 · 4 which equals 50.24
Can u help me with this question?
Answer:
Step-by-step explanation:
im not sure if it is right,but here is my thought since its gonna be half first you do the 4x2x2=16 divide 16 by 2 witch will give you have of 16 witch will also give you 8
Suppose that there are 5 children in a gymnastics class. One day, they count the number of steps each person takes while walking on their hands until they lose balance and come down. The results are: Ashley (20), Brittany (8), Carol (22), Darla (26), and Erica (24). The mean number of steps these children took while walking on their hands is 20 steps. Identify the population and parameter.
Answer:
Population = number of children in gymnastic class = 5
Parameter = mean number of steps taken by the 5 children
Step-by-step explanation:
The population could simply be referred to as the total number or set of similar objects or subjects related to a certain study or research. In the scenario described above, the area of interest is a particular gymnastic class, therefore all individuals or children belonging to this particular gymnastic class makes up the population.
Parameter on the other hand are statistical metrics, values or calculations derived from the population figure or information. Here, the mean value of steps obtained from the step counts of the population data is called the parameter.
Population is number of children in gymnastic class = 5.
Parameter is mean number of steps taken by the 5 children.
Given that,
Suppose that there are 5 children in a gymnastics class.
One day, they count the number of steps each person takes while walking on their hands until they lose balance and come down.
The mean number of steps these children took while walking on their hands is 20 steps.
We have to Identify,
The population and parameter.
According to the question,
Parameters are descriptive measures of an entire population. However, their values are usually unknown because it is infeasible to measure an entire population. Because of this, you can take a random sample from the population to obtain parameter estimates.
The population could simply be referred to as the total number or set of similar objects or subjects related to a certain study or research.
The scenario described above, the area of interest is a particular gymnastic class, therefore all individuals or children belonging to this particular gymnastic class makes up the population.
Parameter on the other hand are statistical metrics, values or calculations derived from the population figure or information.
Here, the mean value of steps obtained from the step counts of the population data is called the parameter.
A parameter is a value that describes a characteristic of an entire population, such as the population mean.
The population mean and standard deviation are two common parameters.
Hence, Population = number of children in gymnastic class = 5.
Parameter = mean number of steps taken by the 5 children.
To know more about Probability click the link given below.
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(7x-10) (7x+5) (5x+55)
Answer:
245x^2+2520x^2−2175x−2750
Step-by-step explanation:
=((7x−10)(7x+5))(5x+55)
=((7x−10)(7x+5))(5x)+((7x−10)(7x+5))(55)
=245x^3−175x^2−250x+2695x^2−1925x−2750
=245x^2+2520x^2−2175x−2750
Hope it helps :)
What is the shape of the cross-section formed when a cone intersects a
plane as shown in the drawing?
A. square
B. oval
c. triangl
d.circle
A circle is formed when a cone intersects a plane as shown in the drawing.
What is a circle?A circle is a shape consisting of all points in a plane that are given the same distance from a given point called the center.
A cross section is defined as the process where a surface is shown when a straight cut is made by something. We are given when a cone is intersected by a plane horizontally the shape of the cross - section is a circle .
When the cone is intersected vertically by a plane the shape of the cross- section will be a triangle. Hence the shape of the cross section depends according to the cut.
Cross section is usually used to find what is there inside the object.
Learn more about circle;
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I have a question please answer it.
Answer:
A or B Ma'am or sir. Have an amazing day and good luck!!
Step-by-step explanation:
What is the first step in solving quadraric equations by finding square roots??
Answer:
b I think. I think so yeah
EZ POINTS 3.0
5+1=???
have funnnnn
Answer:
the answer is 6 for 5+1
Step-by-step explanation:
thanks :)
The store ordered small and large poster. 12 times as many small posters were ordered as large posters. How many more small posters were ordered than large posters.
Answer:
so how many large and small posters were there before they order 12 times the amount.
Step-by-step explanation:
