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2 years ago

6

PLEASE HELP!!!!!! FAST!!!!!!!!

2 answers:

klio [65]2 years ago

7 0

Answer:

%8.75 error

Step-by-step explanation:

14.6/n = 16/100

16n = 1460

n = 91.25

100-91.25 = 8.75

disa [49]2 years ago

5 0

Answer:

Percentage wise, her score is a 91%. So, her error would be only 9%

Step-by-step explanation:

14.6/16=0.91

(the actual answer is 0.9125, I just rounded to the 2nd decimal place)

You might be interested in

The circle shown below has a diameter of 18 centimeters. What is the area of the shaded sector?

N76 [4]

Area of circle = Pi x r*2

If diameter is 18, radius is 9.

Area = pi (3.14) x r*2 (9*2 = 81) .. 3.14 x 81 = 254.34 sq cen = total area of circle.

A circle is 360 degrees, the shaded area is 270 degrees. the shaded area is 3/4 (270/360) of the area of the circle.

254.34 x 3/4 = 190.755 sq cen

Hope this helps

7 0

3 years ago

Read 2 more answers

A triangle has a base of x 1/2 m and a height of x 3/4 m. If the area of te triangle is 16m to the power of 2, what are the base

Olenka [21]

Answer:

The base of triangle is $\frac{8}{\sqrt{3}} \ m$ and the height of triangle is $\frac{12}{\sqrt{3}} \ m.$

Step-by-step explanation:

Given:

A triangle has a base of x 1/2 m and a height of x 3/4 m. If the area of the triangle is 16m to the power of 2.

Now, to find the base and height of the triangle.

The base of triangle = $x\times\frac{1}{2} =\frac{x}{2} \ m.$

The height of triangle = $x\times \frac{3}{4} =\frac{3x}{4}\ m.$

The area of triangle = $16\ m^2.$

Now, we put the formula of area to solve:

$Area=\frac{1}{2} \times base\times height$

$16=\frac{1}{2} \times \frac{x}{2} \times \frac{3x}{4}$

$16=\frac{3x^2}{16}$

<em>Multiplying both sides by 16 we get:</em>

<em /> $256=3x^2$ <em />

<em>Dividing both sides by 3 we get:</em>

<em /> $\frac{256}{3} =x^2$ <em />

<em>Using square root on both sides we get:</em>

$\frac{16}{\sqrt{3}}=x$

$x=\frac{16}{\sqrt{3}}$

Now, by substituting the value of $x$ to get the base and height:

$Base=\frac{x}{2}\\\\Base=\frac{\frac{16}{\sqrt{3}}}{2} \\\\Base=\frac{8}{\sqrt{3}} \ m.$

<em>So, the base of triangle = </em> $\frac{8}{\sqrt{3}} \ m.$ <em />

$Height=x\times\frac{3}{4} \\\\Height=\frac{16}{\sqrt{3}}\times \frac{3}{4} \\\\Height=\frac{12}{\sqrt{3}} \ m.$

<em>Thus, the height of triangle = </em> $\frac{12}{\sqrt{3}} \ m.$ <em />

Therefore, the base of triangle is $\frac{8}{\sqrt{3}} \ m$ and the height of triangle is $\frac{12}{\sqrt{3}} \ m.$

7 0

3 years ago

What is the length of the missing leg?

sp2606 [1]

Answer:

$a=12$

Step-by-step explanation:

Pythagorean Theorem: $a^{2}+b^{2}=c^{2}$

In this case, a = 9, b = a, and c = 15.

$9^{2}+a^{2}=15^{2}$

$81+a^{2}=225$

The, we subtract 81 from both sides getting:

$a^{2}=144$ ,

Then, $a=12$

6 0

2 years ago

If 14 songs were 9.38 dollars how much would one be

zheka24 [161]

Answer:

each song would be 67 cents (0.67)

Step-by-step explanation:

9.38/14=0.67

5 0

2 years ago

In angle abc , m angle A =x , m angle B =2x+2, m angle C = 3x+4.what is value x

Morgarella [4.7K]

A + B + C = 180
x + 2x + 2 + 3x + 4 = 180
6x + 6 = 180
6x = 174
x = 29

8 0

3 years ago