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RSB [31]
3 years ago
9

PLZ RESPOND AS SOON AS POSSIBLE

Mathematics
1 answer:
lyudmila [28]3 years ago
7 0

the coordinates of point f is B)7,-5

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Find area of the cross section of the dam pictured below
kondaur [170]

Answer:

  • (w + h cotθ)h

Step-by-step explanation:

Cross section is the isosceles trapezoid.

<u>Area of trapezoid:</u>

  • A = 1/2(a + b)h

We have one of the bases and the height.

Let the difference of the base lengths is x.

<u>We have:</u>

  • (x/2)/h = cot θ ⇒ x = 2h cot θ

<u>The area is:</u>

  • A = 1/2(w + w + 2h cot θ)h = (w + h cotθ)h
4 0
3 years ago
Use the elimination method to solve the system of equations. Choose the correct ordered pair. 5x - 2y = 9 3x + 4y = - 5 O A. (5,
marta [7]

Answer:

Step-by-step explanation:

4(5x-2y=9)

-2(3x+4y=-5)

20-20x-8y=36

+6x-6x-8y=10

36-20x=10+6x-6x

36-36-20x-6x=10

-26x=10-36

-26x/-26=-26/-26

x=1

3 0
3 years ago
Name the similar triangles
Setler79 [48]

Answer:

I believe the answer is the second one but take precaution i haven´t done them in a few years so be careful.

Step-by-step explanation:

8 0
4 years ago
HURRY I NEED A GOOD ANSWER FAST. Lucy has 14/6 a cup of yogurt for making fruit parfaits each parfait requires 2/6 of yogurt how
Fantom [35]
So she has \frac{14}{6} cups of yogurt for making fruit parfaits, and each parfait requires \frac{2}{6} cup of yogurt. This would imply that we would have to divide the first fraction by the second fraction to find out how many parfaits she can make.

Skip, switch, flip (I believe that's how the statement goes?) When you are dividing a fraction, you skip the first fraction, switch the division sign into a multiplication sign, and flip the second fraction so the denominator is the numerator, and the numerator is the denominator. That would make it :

\frac{14}{6} ×\frac{6}{2} : And 14 × 6 is 84, and 6 times 2 is 12. That would mean that we divide \frac{84}{12}. 

84 divided by 12 is 7. She can make 7 parfaits.

7 0
4 years ago
Read 2 more answers
What is the area of a circular pizza with a radius of 9 cm?
kap26 [50]

Answer:

81π cm²

OR

≈254.34 cm²

Step-by-step explanation:

The area formula for a circle is π×r².

Since the radius of the pizza is 9, we get:

π×9²=

2×π×81=

81π or ≈ 254.34 cm²

5 0
3 years ago
Read 2 more answers
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