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4 years ago

I would like To have help on This question This is My last question That I’m answering for Tonight

Mathematics

2 answers:

Alina [70]4 years ago

5 0

Answer:

4/5

Step-by-step explanation:

i took the test and got it right

klemol [59]4 years ago

3 0

2/3

4/6 simplified is 2/3

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Find the value of x in terms of a

Tatiana [17]

Answers:

a= 5x± $\sqrt{25x^{2} +24u^{2} \\$

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u=± $\sqrt{2a(3z-5x}$

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<h2>Brainliest please!!!! It took me a while to figure this out!</h2>

7 0

3 years ago

What is the value of digit 2 in 9.28

nadezda [96]

The value of 2 is the Tenths place

8 0

3 years ago

Read 2 more answers

Solve the system of equation <br> Y=4x-11<br> Y=x+13<br><br> X=<br><br><br> Y =

Phoenix [80]

Answer:

(8,21)

Step-by-step explanation:

Since both equations equal y, set both equaitions equal to each other

and solve for x

4x-11=x+13 , subtract x from both sides

3x-11=13, add eleven to both sides

3x=24, divide both sides by 3 to get x alone

x=8

Substitute x=8 into either equation to solve for y

y=4(8)-11

y=32-11

y=21

5 0

4 years ago

connor bought 40 pencils for 0.35 each. Mara bought 70 pencils at the same price. how much more money did Mara spend?

Eduardwww [97]

$10.50... multiply each quantity by .35cnts...$24.50-$14.00=$10.50

3 0

3 years ago

Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test t

Ganezh [65]

Answer: z =2.39

Step-by-step explanation:

Given :

$H_0: p \leq0.23\\\\ H_a: p > 0.23$

A random sample of 136 households found that 43 consisted of one person.

i.e. Sample size : n= 136

Sample proportion : $\hat{p}=\dfrac{43}{136}=0.316176470588\approx0.3162$

Test statistic for proportion :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$\Rightarrow z=\dfrac{0.3162-0.23}{\sqrt{\dfrac{0.23(1-0.23)}{136}}}\\\\\Rightarrow\ z=\dfrac{0.0862}{\sqrt{0.00130220588235}}\\\\\Rightarrow\ z=\dfrac{0.0862}{0.0360860898734}\\\\=2.38873206552\approx2.39$

Hence, the value of the test statistic: z =2.39

5 0

3 years ago