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Reptile [31]
3 years ago
5

Help me please with this question

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

P=152

A=79

Step-by-step explanation:

add all the sides

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-7×+4y=12 converted to<br> slope intercept form
Ber [7]

Answer:

y = (7/4)x + 3

Step-by-step explanation:

(isolate the y variable by moving 7x) 4y = 7x + 12

(divide by 4 to get y by itself) y = (7/4)x + 3

5 0
3 years ago
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A poll of 2,060 randomly selected adults showed that 89% of them own cell phones. The technology display below results from a te
Bumek [7]

Answer:

Two tailed test

Test statistic = 3.20

Pvalue = 0.001

H1 : p ≠ 0.91

Step-by-step explanation:

Given :

Test of p=0.91 vs p≠0.91

The use if not equal to ≠ sign in the null means we have a tow tailed test, which means a difference exists in the proportion which could be lesser or greater than the stated population proportion.

The test statistic :

This is the Z value from the table given = 3.20

The Pvalue = 0.001

Since Pvalue < α ;Reject H0

8 0
3 years ago
What expressions equal -3x^2-27
Lady_Fox [76]
Is that x for you to multiply or is that a variable.
8 0
3 years ago
Please help me. Will mark as brainliest
Elenna [48]

Answer:

y = 8

Step-by-step explanation:

sin(45 degrees) = √2/2

==> x = y = 8

4 0
3 years ago
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Klio2033 [76]

Answer:

12a + 18 = 12a + 18

Step-by-step explanation:

times what's in the brackets by what's to the left of the brackets

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