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grin007 [14]
3 years ago
8

What is equivalent to the product (x-4) (x+9)

Mathematics
2 answers:
murzikaleks [220]3 years ago
5 0

Answer:

x^2+5x-36

Step-by-step explanation:

x^2+9x-4x-36

zysi [14]3 years ago
5 0

Answer:

x²+ 5x - 36

Step-by-step explanation:

Given

(x - 4)(x + 9)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x + 9) - 4(x + 9) ← distribute both parenthesis

= x² + 9x - 4x - 36 ← collect like terms

= x² + 5x - 36

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Find the best approximation of the volume of the sphere. (28cm)
Pani-rosa [81]
Depends on what 28 cm is.  The radius?  The diameter?

Assuming it's the radius, using the formula for the volume of a sphere (4/3 r^3 \pi), we get about 91,952 cubic centimeters, which is closest to 92,000.
3 0
4 years ago
Read 2 more answers
Please help me... the perimeter of square WXYZ is 20 units. The coordinates of three of the vertices are W(3,2), X(3,7), and Y(8
Blababa [14]
Okay, so we know that the perimeter of the square is 20. Since a square has 4 equal sides to find the length of one side, 20/4. Each side is equal to five. Look at each of the coordinates and put them respectively into a graph in your mind. w(3,2) (bottom left) x(3,7) (top left) Y(8,7) (top right). Now we know we need to find the bottom right coordinate. Being that both of the coordinates on the left have the same x value we can justify that the coordinates on the right have the same X value also. we can say this same thing for the y coordinate. Since both coordinates on the top of the square have the same Y value, we can justify that the coordinates on the bottom have the same Y value. So taking the coordinates we now are the same, the answer is Z(8,2). We can check his by seeing if the distance if five from each of the adjacent coordinates. If you have any questions comment below.
5 0
3 years ago
How do I solve fo A when A/2m=9+H
Neko [114]

Answer:

Step-by-step explanation:

Simply multiply 2m both sides:

A = (9+H)(2m)

Hope this helps!

4 0
3 years ago
Read 2 more answers
Help please, also provide work
Andreas93 [3]

Answer:

9) 128
10) 78
11) 31
12) 148

Step-by-step explanation:


9) we know that the segment across from the angle 48° is double the angle.

48 · 2 = 96

The segments around the circle should all add up to 360 so we add the two segments we know to find the unknown segment.

136 + 96 = 232

360 - 232 = 128

The answer for 9 is 128.

10)

61 + 80 = 141

180 - 141 = 39

39 * 2 = 78

The answer for question 10 is 78.

11)

236 + 62 = 298

360 - 298 = 62

62 ÷ 2 = 31

The answer for question 11 is 31.

12)

50 · 2 = 100

100 + 112 = 212

360 - 212 = 148

The answer for question 12 is 148.

8 0
2 years ago
Please answer Question 20
Sladkaya [172]

Answer:

Perimeter = 20m

Area = 25m

If you want a good explanation please comment on this, I am at middle school and I have to go.

Step-by-step explanation:

8 0
4 years ago
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