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3 years ago

Express

Mathematics

1 answer:

timofeeve [1]3 years ago

5 0

Answer:

x^2-8x-9

−8x−9

Step-by-step explanation:

You have to factor the expression in order to get your answer

Do this by expanding out the expression: (x-10)(x-10)

Then factor by multiplying each of the components! Use the FOIL acronym to help you. FOIL stands for First, Outer, Inner, Last. Meaning multiply the first numbers of the expressions together, then the outers, then the inner two numbers, then the last two numbers of the expression.

Multiply x and x to get , multiply x and -10 to get -10x, multiply -10 and x to get -10x, multiply -10 and -10 to get 100. Add them all together: . Then combine like terms

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ololo11 [35]

Answer:

y = $\frac{6-3x}{2}$

Step-by-step explanation:

Given

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2y = 6 - 3x ( divide both sides by 2 )

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3 years ago

What would the graph of 10x + 7y < 49 look ?

navik [9.2K]

Answer: The graph is attached.

Step-by-step explanation:

1. Solve for y, as following:

$10x+7y$

2. The equation of the line in slope intercept form is:

$y=mx+b$

Where m is the slope and b is the y-intercept.

3. In this case the equation of the line is:

$y=-\frac{10}{7}x+7$

then:

$m=-\frac{10}{7}\\\\b=7$

4. Find the x-intercept. Make y=0. Then:

$0=-\frac{10}{7}x+7\\\frac{10}{7}x=7\\x=4.9$

5. Then, plot the line that passes through the points (0,7) and (4.9, 0).

6. The symbol of the inequality is < therefore, the line must be dashed and indicates that the region under the line must be shaded.

Then you obtain the graph attached.

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3 years ago

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Find the mean and median of the following data set: -25, 10, 40, -15, 0, 35, 15, -10

emmasim [6.3K]

Answer:

Mean 6.25

Median 5

Step-by-step explanation:

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3 years ago

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On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?

Dafna11 [192]

Answer:

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Step-by-step explanation:

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3 years ago

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insens350 [35]

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So the slope will be the coefficient of the x-term which means the number that is in front of the x which in this case is -5/4.

The y-intercept is the constant term which is +8

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3 years ago

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