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4 years ago

18 cm

Mathematics

1 answer:

Tema [17]4 years ago

3 0

Answer:

75cm^2

Step-by-step explanation: Area of a triangle is: 1/2(b*h)

b= base length

h= height

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The area of a rectangle is 36 square centimeters and it's length is 9 centimeters whats the width

Eva8 [605]

A=lw
36/9 = 4
so the width is 4 centimeters.

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3 years ago

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The Y-intercept changes .

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3 years ago

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I sold 32 posters for a total of 126. And I sold 48 posters for a total of 240. If the relationship between the number of poster

Oksanka [162]

Answer:

The cost per print expressed as a slope is 7.125

Step-by-step explanation:

To calculate the cost per print, let’s envision that we have a graphical representation of cost of posters against the number of posters

We have the cost on the y-axis and the number of posters on the x axis

With the information given in the question, we shall be having two data points

Point 1 = (32,126)

point 2 = (48,240)

Now to find the slope of the line which is cost per print, we make use of both points in the slope equation.

Mathematically, slope m will be

m = y2-y1/x2-x1

Thus, we have;

m = (240-126)/(48-32)

m = 114/16

m = 7.125

The cost per print expressed as a slope is 7.125

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3 years ago

what is (5.91 x 10^-3) - (8.7 x 10^10) written in a scientific notation? Please answer asap thank you :))

nata0808 [166]

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

$\left(5.91\times \:10^{-3}\right)-\left(8.7\times \:10^{10}\right)$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$=5.91\times \:10^{-3}-8.7\times \:10^{10}$

$5.91\times \:10^{-3}$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}$

$=5.91\times \frac{1}{10^3}$

$=\frac{5.91}{1000}$

$=0.00591$

similarly

$8.7\times \:10^{10}$

Convert element to a decimal form

$10^{10}=10000000000$

$=10000000000\times \:8.7$

$\mathrm{Multiply\:the\:numbers:}\:8.7\times \:10000000000=87000000000$

$=87000000000$

Thus, the expression becomes

$\left(5.91\times \:\:10^{-3}\right)-\left(8.7\times \:\:10^{10}\right)=5.91\times \:\:10^{-3}-8.7\times \:\:10^{10}$

$=0.00591-87000000000$

$=-86999999999.9941$

Hence,

converting -86999999999.9941 in a scientific notation

In order to make our job easier we will remove the sign "-" from number -86999999999.9941 (we will write "-" at the final solution). So after this step we have:

−86999999999.9941 ⟶ 86999999999.9941

In order to write number 86999999999.9941 in scientific notation, we need to move the decimal point from its current location (black dot) to the new position such as:

8.6999999999.9941

So, we need to move the decimal point 10 places to the right.

This means that the power of 10 will be positive 10.

Now we have that the

Number part = 8.69999999999941 and

Exponent part = 10

Thus, we conclude that:

−86999999999.9941 = − 8.69999999999941 × 10¹⁰

8 0

3 years ago