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zhannawk [14.2K]
2 years ago
12

What does x - 9 multiplied by x + 4 equal

Mathematics
1 answer:
GarryVolchara [31]2 years ago
5 0

Answer:

x^2 - 5x -36

Step-by-step explanation:

multiply x-9 by x to get x^2 -9x. multiply x-9 by 4 to get 4x-36. add these two together to get x^2 - 9x + 4x - 36. simplify to get x^2 - 5x -36

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At a water park there is a slide that you really want to ride. In order to get to the top of the 29 foot slide you must first cl
murzikaleks [220]

Answer: 20 feet

Step-by-step explanation:

This represents a right angled triangle with the length of the slide being the hypotenuse, the height of the ladder being the height of the triangle and the distance from the base of the ladder being the length.

Solve with Pythagoras rule:

c² = a² + b²

c = hypotenuse

a= length

b = height

29² = 21² + b²

841 = 441 + b²

b² = 841 - 441

b² = 400

b = √400

b = 20 feet

8 0
3 years ago
A tree has a circumference of 16 ft. Calculate the volume of wood it contains if the tree is 10ft tall. Round your answer to the
Veronika [31]

Answer:

Step-by-step explanation:

The circumference of the tree is the distance around the tree's circular top. The formula for determining the circumference of a circle is expressed as

Circumference = 2πr

If the tree has a circumference of 16 ft, it means that

2πr = 16

πr = 16/2 = 8

r = 8/π

The formula for determining the volume of a cylinder is expressed as

Volume = πr²h

if the tree is 10ft tall, then the volume of wood it contains is

Volume = π × (8/π)² × 10

Volume = 64/π × 10

Volume = 64/3.14 × 10

Volume = 204 cubic feet

7 0
3 years ago
(05.05 HC) Figure ABCD has vertices A(-3, 2), B(2, 2), C(2, -4), and D(-3, -2). What is the area of Figure ABCD?​
irga5000 [103]

Answer:

I don't know how to answer this, sorry!

Step-by-step explanation:

.

6 0
1 year ago
PLEASE GIVE A FULL REASONABLE EXPLANATION IF NOT JUST DONT ANSWER
Andrews [41]

Step-by-step explanation:

Add all the books then find the average

6 0
2 years ago
Read 2 more answers
1/2expand the equation 1/2(3+4t-10)=
Ivanshal [37]

\frac{1}{2} (3 + 4t - 10)

\frac{3}{2}  +  \frac{4t}{2}  -  \frac{10}{2}

(\frac{3}{2}  -  \frac{10}{2})  + 2t

\frac{ - 7}{2}  + 2t

- 3.5 + 2t

8 0
2 years ago
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