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3 years ago

Find the surface area of the shape below.

Mathematics

1 answer:

almond37 [142]3 years ago

8 0

Answer:

54m^2

Step-by-step explanation:

Each square has a equal sides, which is 3m

in order to find the surface area, it's

Formula : Base x height = Area

The total surface area would be all the area's added together

3x3=9cm^2

so each square is 9m^2

there are 6 squares so

9+9+9+9+9+9=54m^2

or you can do 9x6=54m^2

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The food store sold 88 ice cream cakes in June. If it would sell 25% more ice cream cakes in July, how many more ice cream cakes

goldfiish [28.3K]

88x0.25=22
Therefore, they would sell 22 more ice cream cakes in July.

8 0

3 years ago

A government watchdog association claims that 70% of people in the U.S. agree that the government is inefficient and wasteful. Y

nata0808 [166]

Answer:

Option D) There is sufficient evidence that the true population proportion is not equal to 70%.

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1165

p = 70% = 0.7

Alpha, α = 0.02

Number of people who agreed , x = 746

First, we design the null and the alternate hypothesis

$H_{0}: p = 0.7\\H_A: p \neq 0.7$

This is a two-tailed test.

Formula:

$\hat{p} = \dfrac{x}{n} = \dfrac{746}{1165} = 0.64$

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

Putting the values, we get,

$z = \displaystyle\frac{0.64-0.7}{\sqrt{\frac{0.7(1-0.7)}{1165}}} = -4.46$

Now, $z_{critical} \text{ at 0.02 level of significance } = \pm 2.33$

Since,

Since, the calculated z statistic does not lie in the acceptance region, we fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

Thus, there is enough evidence to support the claim that the true proportion differs from 70%.

Option D) There is sufficient evidence that the true population proportion is not equal to 70%.

3 0

3 years ago

3x+4xy=4 solve for x

dangina [55]

3x+4xy=4

Factor our variable x

x(4y+3)=4

Divide both sides by 4y+3

x(4y+3)/4y+3= 4/4y+3

x= 4/4y+3

I hope that's help !

7 0

3 years ago

1/3 = /6 - 1/6 = /6 How do you find the unlike denominator. Can you explain

lakkis [162]

Answer:

Okay So I see you need to change 1/3 to a denominator of 6

You don't do anything to the -1/6

But to change the 1/3 you need to multiply 3 and 1 by two, which is 2/6

And the -1/6 stays the same

5 0

3 years ago

Suppose a triangle has sides a,b,and c and that a^2 + b^2

bagirrra123 [75]

Answer:

a^2+b^2=c^2

Step-by-step explanation:

a, b, c each represent a side. Lets say a triangle has a=2 and b=4.

a^2= 2^2= 2*2= 4 do the same with B.

b^2= 4^2= 4*4= 16

2. a^2+ b^2= 4+16= 20= c^2

Get it?

8 0

4 years ago