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3 years ago

Help please !!!!!!!! Asap

Mathematics

1 answer:

Anettt [7]3 years ago

5 0

Answer:

add them all

Step-by-step explanation:

add them all is answer

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Three less than the product of two and a number y

expeople1 [14]

Answer:

$2y-3$

Step-by-step explanation:

It is saying to subtract 3 from the product of 2 and the variable, y.

6 0

3 years ago

(4m+3)(m+2) <br><br>expand each of the following algebraic expression

Alina [70]

Answer:

4m² + 11m + 6

Step-by-step explanation:

Use foil to expand this value.

(4m+3)(m+2)

Multiply the first terms in the two brackets.

Then multiply the two outer terms.

Followed by multiplying the inner terms.

Finally multiply the last terms

= (4m+3)(m+2)

4m² + 8m + 3m + 6

4m² + 11m + 6

8 0

3 years ago

A new car is purchased for $17,300 the value of the car dissipates at 9.25% per year will what will be the value of the car to t

mamaluj [8]

Answer:

17,300×9.25%= 160,025÷15=10,668

Step-by-step explanation:

that how much to purchased $10,668

3 0

3 years ago

8.1 divided into 81 problem

andriy [413]

The answer is 0.1, hope it helps

8 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