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2 years ago

A birthday cake is shaped like a square. The area of the square is 64

Mathematics

1 answer:

anastassius [24]2 years ago

3 0

Answer:

8 square inches. You find area by length x height. A square's sides are all of equal length. So what number x itself is 64? The answer is 8 because 8 x 8 equals 64.

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Step-by-step explanation:

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2 years ago

Suppose line AT bisects ∠CAR. if ∠CAT = 5x and ∠CAR = 9x +7, what is ∠TAR

zepelin [54]

Answer:

∠TAR = 35°

Step-by-step explanation:

∠TAR = ∠CAR - ∠CAT = (9x + 7) - 5x = 4x + 7

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2 years ago

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Veseljchak [2.6K]

Answer:

Step-by-step explanation:

x=60 .

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2 years ago

Read 2 more answers

Complete parts (a) through (c) below.

nexus9112 [7]

Answer:

a) $t_{crit}=1.34$

b) $t_{crit}=-1.33$

c) $t_{crit}=\pm 2.11$

Step-by-step explanation:

Part a

$\alpha=0.1$ represent the significance level

df =15

Since is a right tailed test the critical value is given by:

$t_{crit}=1.34$

And we can use the following excel code to find it: "=T.INV(0.9,15)"

Part b

$\alpha=0.1$ represent the significance level

n=20 represent the sample size

First we need to find the degrees of freedom given by:

$df=n-1=20-1=19$

Since is a left tailed test the critical value is given by:

$t_{crit}=-1.33$

And we can use the following excel code to find it: "=T.INV(0.1,19)"

Part c

$\alpha=0.05$ represent the significance level

n=18 represent the sample size

First we need to find the degrees of freedom given by:

$df=n-1=18-1=17$

The value of $\alpha=0.05$ and $\alpha/2 =0.025$

Since is a two tailed tailed we have two critical values is given by:

$t_{crit}=\pm 2.11$

And we can use the following excel code to find it: "=T.INV(0.025,17)"

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2 years ago