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Serggg [28]
3 years ago
12

What is the area of the triangle?

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

A = 54cm^2

Step-by-step explanation:

A = (base × height)/2

base = 9cm

height= 12cm

A = (9 × 12)/2

A = 108/2

A = 54

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Write y+7=4(x+2) in standard form.
Vinvika [58]

Answer:

1 = 4x -y

Step-by-step explanation:

Distribute the 4

y + 7 = 4x + 8

Subtract the 7

y = 4x - 1

Subtract y and add 1

7 0
3 years ago
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A line has a slope of -13. There is a second line that passes through points (-7,-5) and (6,-4) . Would these lines be parallel
Elza [17]
<h3>Answer: The lines are perpendicular</h3>

=================================================

Work Shown:

Use the slope formula to find the slope of the line through the two given points.

m = (y2 - y1)/(x2 - x1)

m = (-4 - (-5))/(6 - (-7))

m = (-4 + 5)/(6 + 7)

m = 1/13

The slope of the line through the two given points is 1/13.

This is not equal to -13, which was the slope of the first line, so the two lines are not parallel.

However, the two lines are perpendicular because multiplying the two slope values leads to -1

(slope1)*(slope2) = (-13)*(1/13) = -1

note: It might help to think of -13 as -13/1 to help multiply the fractions.

3 0
3 years ago
What is the ratio 15 girls to 6 boys in simplest form?
Alenkinab [10]
5 girls to 2 boys, it’s not asking for boys and girls
4 0
3 years ago
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Which of the numbers below is the next number in the following pattern?<br> 2,-3,4,-5,
GarryVolchara [31]

Answer:

df

Step-by-step explanation:

8 0
3 years ago
On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm , m∠A=80° , and m∠B=50° .
Svetllana [295]
The correct answer for this question is this one:

<span>On a piece of paper, use a protractor and a ruler to construct △ABC with AB=6 cm , m∠A=80° , and m∠B=50° .

What is AC ?

3 cm
<u>6 cm</u>
9 cm
12 cm</span>

If you try to draw the triangle, it forms an isosceles triangle.
side AB has a length of 6cm. Side AB = Side AC. So the length of Side AC is also 6 cm.

Hope this helps answer your question and have a nice day ahead.
6 0
3 years ago
Read 2 more answers
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