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Nady [450]
3 years ago
9

PLEASE HELP NEED ANSWER ASAP!! 30POINTS!!!!!!

Mathematics
1 answer:
madreJ [45]3 years ago
4 0
1 similar parallelograms
EFGH and WXYZ

set up
2/3 = 6/x

solve for x
2/3 times x = 6
x = 6 divided by 2/3
x =9

2 similar pentagons
JKLMN and VWXTZ
similar shapes have the same angles
60 degrees

2. similar triangles
lance the alien
set up
5/8 = x/32

solve for x by multiplying 32 on both sides

(5/8) times 32 = x
x = 20

4 similar triangles
ADE and ABC

set up
x/2 = 12/(4+2)
x/2 = 12/6
x/2 = 2
x = 4

5 similar triangles
perimeter

two different set ups
first:
30/5 = (YZ)/6
6 = (YZ)/6
36 = YZ

second:
30/5 = (XZ)/10
6 = (XZ)/10
60 = XZ

perimeter
60 + 36 + 30 = 126

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Dean Halverson recently read that full-time college students study 20 hours each week. She decides to do a study at her universi
romanna [79]

Answer: The p-value is 0.154.

Step-by-step explanation:

Since we have given that

We claim that

Null hypothesis :

H_0:\mu=20

Alternate hypothesis :

H_1:\mu

Population mean = 20 hours

Sample mean = 18.5 hours

Sample standard deviation = 4.3 hours

Sample size n = 35

So, test statistic would be

z=\dfrac{\bar{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{18.5-20}{\dfrac{4.3}{\sqrt{35}}}\\\\z=\dfrac{-1.5}{0.726}\\\\z=-2.066

So, the  p value would be 0.154.

Hence, the p-value is 0.154.

4 0
3 years ago
a student reads at a rate of 16 pages per day which ordered pair would be on a graph of its relationship
mojhsa [17]
I found the choices that should have been included in this problem.
a) (1.5,26)
b) (2.25,30)
c) (5.5,88)
d) (7.25,110)

y = 16x
choice a. y = 16(1.5) = 24
choice b. y = 16(2.25) = 36
choice c. y = 16(5.5) = 88
choice d. y = 16(7.25) = 116

The correct answer is choice c. (5.5, 88)
8 0
3 years ago
In order for the parallelogram to be a rhombus, x=?
stealth61 [152]

\\ \large\sf\longmapsto x + 15 = 2x - 40 \\ \\ \large\sf\longmapsto x - 2x =  - 40 - 15 \\ \\ \large\sf\longmapsto  - x =   -  55\\ \large\sf\longmapsto x = 55

6 0
2 years ago
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Garica family bought 9 bags of cookies each bag had 15 cookies they have eaten 27 of the cookies how many cookies do they have l
vova2212 [387]
108 because 9 x 15 is 135 then 135- 27 is 108
3 0
3 years ago
A shopper gives a cashier $60 to pay for a $49 how much does the cashier of the shopper​
Leni [432]

Answer:

$11.00

Explanation:

$60 given - $49 order = $11 change

8 0
3 years ago
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