3 years ago

I need help please

Mathematics

2 answers:

Sidana [21]3 years ago

7 0

7 1/2
you go to both sides of the graph and count in till u get to the middle

Marat540 [252]3 years ago

3 0

Answer:

7 1/2

Step-by-step explanation:

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20 points! And BRAINLIEST!

SVEN [57.7K]

Answer:

32 sq. ft.

Step-by-step explanation:

1/2 (8x8)=1/2(64)=32

7 0

3 years ago

Rob is buying some green apples to make some fresh apple juice. The price of the green apples is G and Rob has a coupon for 10%

Free_Kalibri [48]

C) g-0.1g
You multiply gx0.1 then subtract that from the price of apple (g).

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2 years ago

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If I have 3 oranges and I add 5 how many oranges do I have

aksik [14]

Answer:

you get 8 oranges

Step-by-step explanation:

5 + 3 = 8 oranges

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2 years ago

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3. Suppose you are testing H0 : µ = 20 vs H1 : µ > 20. The sample is large (n = 71) and the variance, σ 2 , is known. (a) Fin

LUCKY_DIMON [66]

Answer:

We reject the null hypothesis.

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 71

Population variance is known.

Level of significance, α = 0.08

$z_{\text{stat}} = 1.56$

The null and alternate hypothesis are:

$H_{0}: \mu = 20\\H_A: \mu > 20$

We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} } = 1.56$

Now, $z_{critical} \text{ at 0.08 level of significance } = 1.41$

Since,

$z_{stat} > z_{critical}$

We fail to accept the null hypothesis and reject it and accept the alternate hypothesis.

7 0

3 years ago

What are the original dimensions of the square piece of paper?

Inga [223]

Answer:

6root2 × 6root2

you have to use pythagoras

a²+b²=c²

c=12

12²=144

a²+b²=144

but it is a square so I'll just change a and b to x because it shows they are equal

x²+x²=144

2x²=144

x²=72

x=6root2

4 0

2 years ago