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3 years ago

Please just answer this one question I've been here since 7 a.m. also can you show work

Mathematics

1 answer:

tigry1 [53]3 years ago

4 0

Answer:

59.89 square units

Step-by-step explanation:

There should be a formula that says for similiar figures that

(perimeter of 1)^2 / (perimeter of 2)^2 = (Area of figure 1)/ (Area of figure 2)

so .. 3^2 / 7^2 = 11/ (area of big figure)

9/49 = 11/ (Area of big)

Area of big = 49* 11/9 = 539/9 = 59.88888....

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What is the factor of this problem?<br> ~plz help cannot get this wrong !

Aleonysh [2.5K]

Answer:

it should be 3x^2 +2

Step-by-step explanation:

3 0

2 years ago

When designing a study to determine this population proportion, what is the minimum number of drivers you would need to survey t

Vlada [557]

Answer: 601

Step-by-step explanation:

The formula to find the minimum sample size(n) , if the prior population proportion is unknown:

$n=0.25(\dfrac{z^c}{E})^2$ , where E = margin of error , $z^c$ = critical z-value for confidence level c.

Given : E = 0.04

Z-value for 95% confidence = 1.96

So, the minimum sample size required = $0.25(\dfrac{1.96}{0.04})^2=0.25(49)^2$

$= 0.25\times 2401=600.25\approx601$

Hence, the minimum sample size required = 601

6 0

2 years ago

(-7x∧5 + 14 - 2x) + (10x∧4 + 7x + 5x∧5)

Maslowich

$-7x^5 + 5x^5 +10x^4 -2x + 7x + 14= -2x^5 +10x^4 +5x + 14$

Your answer is $-2x^5 +10x^4 +5x + 14$

7 0

3 years ago

What is the image point of (-6,-9)(−6,−9) after a translation left 1 unit and down 5 units?

Anna [14]

Answer:

(-7,-4)

Step-by-step explanation:

-6-1=-7

-9-(-5)=-4

7 0

3 years ago

The sum of the interior angles of a polygon is

Crank

Answer:

D) 15

Step-by-step explanation:

The sum of the interior angles of a polygon is given by

$(n - 2) \times 180$

We have that, the sum of the interior angles of a polygon is

26 right angles. We want to find n, the number of sides.

We substitute into the formula to get:

$(n - 2) \times 180 = 26 \times 90$

Divide through by 90

$2(n - 2) = 26$

Divide through by 2

$n - 2 = 13$

$n = 13 + 2$

$n = 15$

6 0

2 years ago

Please just answer this one question I've been here since 7 a.m. also can you show work​

Please just answer this one question I've been here since 7 a.m. also can you show work