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Paraphin [41]
2 years ago
6

Can someone please help with these

Mathematics
2 answers:
Ksivusya [100]2 years ago
8 0
240 and I think 56 rlly sorry if I’m wrong
schepotkina [342]2 years ago
7 0

Answer:

First picture:

Area = 48 ft

Perimeter = 30 ft

Second picture:

Area = 240 in

Perimeter = 64 in

Step-by-step explanation:

have a nice day!! :)

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Which statement is an example of heat transfer by convection?
Paraphin [41]

Answer: Hot air from the sand rose and was replaced by cool air blowing in from the ocean as a sea breeze.

Step-by-step explanation:

sorry it's late but hopefully it will help others

8 0
3 years ago
What is the difference between the product of four and a number and 6
Anuta_ua [19.1K]
4x-6

A product means you have to multiply so the product of four and a number is 4 times x so 4x
A difference means you have to substraction a number from another number. So -6
3 0
3 years ago
Read 2 more answers
What does ECONOMY MEAN PLZ TELL ME
ratelena [41]
<span>The wealth and resources of a country or region, especially in terms of the production and consumption of goods and services.

OR

</span><span>Careful management of available resources.</span>
6 0
2 years ago
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A window in the shape of a rectangle as shown below has a width of x+5 and a length of x^2- 3x+7 express the area of the rectang
Ksju [112]

Answer:

x^3+x^2-5x+28

Step-by-step explanation:

since a=lw, the area is (x^2-3x+7)(x+4)

1. distribute parentheses \left(x^2-3x+7\right)\left(x+4\right)=x^2x+x^2\cdot \:4+\left(-3x\right)x+\left(-3x\right)\cdot \:4+7x+7\cdot \:4

2. apply +(-a)=-a rule x^2x+4x^2-3xx-3\cdot \:4x+7x+7\cdot \:4

3. Simplify

    Steps to simplify:

x^2x=x^3

3xx=3x^2

3\cdot \:4x=12x

7\cdot \:4=28

x^3+4x^2-3x^2-12x+7x+28

4. Add like terms =x^3+4x^2-3x^2-5x+28

5. Add like terms =x^3+x^2-5x+28

6 0
2 years ago
The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statis
Ainat [17]

Answer:

The test statistic Z = 3.125

Step-by-step explanation:

<em>Given Population proportion P = 0.25</em>

<em>Given sample size 'n' = 696</em>

<em>Sample proportion 'p⁻' = 0.30</em>

Test statistic

                 Z = \frac{p^{-}  -P}{\sqrt{\frac{P Q}{n} } }

                 Z = \frac{0.30-0.25}{\sqrt{\frac{0.25 X 0.75}{696} } }  = 3.125

<u><em>Final answer</em></u>:-

The test statistic Z = 3.125

3 0
3 years ago
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