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3 years ago

Please help, there’s a picture.

Mathematics

1 answer:

tino4ka555 [31]3 years ago

6 0

Answer: zxy=39 wxy=78

Step-by-step explanation:

Since xz bisects wxy, the 2 angles that make up wxy are equal.

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Given a population mean of 53.7 with a standard deviation of 1.3 and a sample size

a_sh-v [17]

Answer: A. 0.4899 B. 14

Step-by-step explanation:

If X = random variable

then, the standard deviation of the sampling distribution of X = $\dfrac{\sigma}{\sqrt{n}}$

GIven: $\sigma= 1.2, \n= 6$

The standard deviation of the sampling distribution of X = $\dfrac{1.2}{\sqrt{6}}=0.4899$

B. Let n be the sample size,

$0.325=\dfrac{1.2}{\sqrt{n}}\\\\\Rightarrow\ \sqrt{n}=\dfrac{1.2}{0.325}\\\\\Rightarrow\ \sqrt{n}=3.69230769231\\\\\Rightarrow\ n= (3.69230769231)^2=13.6331360947\approx 14$

Hence, the required sample size = 14

3 0

3 years ago

Please help I need help

Andre45 [30]

An inverse variation can be represented by the equation

$xy=k\to y=\dfrac{k}{x}$

We have

$\dfrac{y}{6}=x\qquad|\cdot6\\\\y=6x$

Answer: The relationship does not show an inverse variation.

6 0

3 years ago

-1 2/3 as a decimal please help

SVEN [57.7K]

Answer:

-1.6666666666667.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Pls solve asap

PIT_PIT [208]

19-6v/2
————-
4

Alternative form: 2.62868

(This: v/ is supposed to mean squared)

Hope this helped :)

6 0

2 years ago

Read 2 more answers

The ratio of points scored by 3 boys on a math test is 7: 10: 12. If the sum of their scores is 232 what is the highest score?

trasher [3.6K]

STEP 1) 7x+10x+12x= 232 STEP 2) 29x = 232 STEP 3) divide 232 by 29 STEP 4) x=8 STEP 5) 7 times 8 = 56, 10 times 8 = 80, 12 times 8 = 96. the highest score was a 96

3 0

3 years ago