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Vlad [161]
3 years ago
5

Find the area, seventh grade math problem please help

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
6 0

Answer:

78 ft²

Step-by-step explanation:

A=\frac{a+b}{2} h

A=\frac{11+15}{2}6

78

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Please help me with the middle question
Gwar [14]
The angles in a triangle must add up to equal 180. When it gives you angle A and angle B, you add them, then subtract it from 180, which will give you the angle C.

65 + 15 = 80 

180 - 80 = 100 = Angle C.

It says to list them from smallest to greatest.

<B = 15, <A = 65, <C = 100


3 0
3 years ago
The quadratic function below has an axis of symmetry through x = -4; a vertex at (-4, -9) and zeroes at x = -7 and x = 0.
Pavlova-9 [17]

Answer:

True

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 4, - 9), thus

y = a(x + 4)² - 9

To find a substitute the coordinates of the zero (- 7, 0) into the equation.

0 = a(- 7 + 4)² - 9, that is

0 = 9a - 9 ( add 9 to both sides )

9a = 9 ( divide both sides by 9 )

a = 1, thus

y = (x + 4)² - 9 ← expand factor using FOIL

y = x² + 8x + 16 - 9

y = x² + 8x + 7

4 0
2 years ago
Solve x+4=10 A.x=2 B.x=3 C.x=6 D.x=14
labwork [276]

Answer:

C. x = 6

Step-by-step explanation:

6 + 4 = 10

8 0
3 years ago
you flip a coin and then select one ball from a box that contains 6 balls number 1,2,3,4,5,6. how many oitcomes are in the sampl
ehidna [41]

There are 12 outcomes. The coin can land on either heads or tails, and then you can extract any number from 1 to 6 from the box. So, the outcomes are

  1. Heads, 1
  2. Heads, 2
  3. Heads, 3
  4. Heads, 4
  5. Heads, 5
  6. Heads, 6
  7. Tails, 1
  8. Tails, 2
  9. Tails, 3
  10. Tails, 4
  11. Tails, 5
  12. Tails, 6
7 0
3 years ago
What is 5 1/4 x 4 1/5
dalvyx [7]

Answer:

The answer to your question is 22 1/20

5 0
3 years ago
Read 2 more answers
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