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Soloha48 [4]
2 years ago
10

Please help me please I’m begging you this is an assessment grade

Mathematics
1 answer:
Vladimir79 [104]2 years ago
6 0

Answer:

-2 , 4

Step-by-step explanation:

-2 + 4 = -2

-2 * 4 = -8

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Surface Area of a Triangular Pyramid, please help!
8090 [49]

Answer:

surface area of the triangular pyramid

=(1/2×9×7.8)+(3×1/2×9×12.3)

=35.1+166.05

=201.15 inch²

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2 years ago
Drag the tiles to the boxes to form correct pairs. Polygon ABCD has sides with these lengths: , 5 units; , 4 units; , 4.5 units;
Airida [17]

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5 units

Step-by-step explanation:

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2 years ago
Car A travels 20 mph faster than Car B. In the same time that Car A travels 252 miles, Car B travels 196 miles. Find their speed
RoseWind [281]

<u>Answer:</u>

A = 70

B = 90

<u>Step-by-step explanation:</u>

We know that Car A travels 20 mph faster than Car B.

Assuming the speed of Car B to be x and the speed of Car A to be x+20, we can write:

\frac{196}{x} =\frac{252}{x+20}

Taking the reciprocal of both sides to make x the subject:

196(x+20)=252x

196x+3920=252x

252x-196x=3920

56x=3920

x=70 ---> speed of Car A

Finding the speed of Car B: x+20 = 70+20=90

Therefore, the speed of Car A = 70 and the speed of Car B = 90.

8 0
3 years ago
1÷1+cosa+1÷1_cos a please solve question​
zloy xaker [14]

ok so THIS IS UR ANSWER I THINK PLEASE MAKE ME BRAINLIEST

4 0
3 years ago
Question is below (wasn't sure about the answer)
Paha777 [63]

Answer: Choice A)

H = \frac{SA}{2(L+W)} - \frac{LW}{L+W}\\\\

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

Work Shown:

SA = 2(LW + LH + HW)\\\\2(LW + LH + HW) = SA\\\\LW + LH + HW = \frac{SA}{2}\\\\LH + HW = \frac{SA}{2} - LW\\\\H(L + W) = \frac{SA}{2} - LW\\\\H = \frac{\frac{SA}{2} - LW}{(L + W)}\\\\H = \frac{SA}{2(L+W)} - \frac{LW}{L+W}\\\\

This is not the only way to solve for H.

3 0
2 years ago
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