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2 years ago

What is the area of polygon PQRS?

Mathematics

2 answers:

PolarNik [594]2 years ago

3 0

Where are the answers?

Step-by-step explanation:

Ksju [112]2 years ago

3 0

1) starting with the rectangle 6*15 which is 90 (that’s the area for it)

2) take 8*17 for the triangle which is 136 and divide it by two 136/2 and you’ll get 68 (that’s the second area)

3) add them together to get the full area 68+90=158

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Order the following numbers from least to greatest.<br> 64 cubicle root 18 cubicle root 4.2

Mrrafil [7]

It would be 4.2, 19 cubic root, and 64 cubic root (least to greatest)

3 0

2 years ago

Kamila [148]

The first one is y=16

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3 years ago

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

Find the value of x please.

igor_vitrenko [27]

Answer:

Step-by-step explanation:

its a guess bc its a right triangle and right triangle is 90 degrees minus 7 is 83

7 0

2 years ago

Read 2 more answers

I need help finding a solution to this equation: 5 (n-1/10)=1/2

Readme [11.4K]

Answer:

n = 1/5

Step-by-step explanation:

Let's solve your equation step-by-step.

5(n− 1 /10 )= 1/ 2

Step 1: Simplify both sides of the equation.

5(n− 1 /10 )= 1 /2

(5)(n)+(5)( −1 /10 )= 1/2

(Distribute)

5n + −1 /2 = 1 /2

Step 2: Add 1/2 to both sides.

5n + −1 /2 + 1 /2 = 1 /2 + 1 /2

5n=1

Step 3: Divide both sides by 5.

5n /5 = 1 /5

n= 1 /5

7 0

2 years ago