MATHEMATICS MIDDLE SCHOOL

Simplify the expression:
-10+-v–2+-9

Answers

Answer 1
Answer: -10 + -v - 2 + -9

First, simplify. / Your problem should look like: -10 - v - 2 - 9
Second, simplify/subtract. / Your problem should look like: -v - 21

Answer: -v - 21
Answer 2
Answer: -10+-v-2+-9 = -10-v-2-9 = -v -21 =\boxed {-1 (v+21)}

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Whats the answer i realy need help

Answers

what’s the question

Answer: 7/2

Step-by-step explanation: y is rise and x is run just count from one point to another count from point x to point y

Solve using quadratic formula x^2+8x=7

Answers

For this case we have the following quadratic equation:

x ^ 2 + 8x = 7\nx ^ 2 + 8x-7 = 0

Where:

a = 1\nb = 8\nc = -7

We find the solution by:

x = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2a}

Substituting the values we have:

x = \frac {-8 \pm \sqrt {8 ^ 2-4 (1) (- 7)}} {2 (1)}\nx = \frac {-8 \pm \sqrt {64 + 28}} {2}\nx = \frac {-8 \pm \sqrt {92}} {2}\nx = \frac {-8 \pm \sqrt {2 ^ 2 * 23}} {2}\nx = \frac {-8 \pm2 \sqrt {23}} {2}\nx = -4 \pm \sqrt {23}

Thus, we have two roots:

x_ {1} = - 4+ \sqrt {23}\nx_ {2} = - 4- \sqrt {23}

Answer:

x_ {1} = - 4+ \sqrt {23}\nx_ {2} = - 4- \sqrt {23}

If n = 8 and 16 · 2^m = 4^(n – 8), then m = ?F. –4
G. –2
H. 0
J. 1
K. 8

Answers

n = 8 , \n \n 16 \cdot 2^m = 4 ^(n - 8) \n \n 16 \cdot 2^m = 4 ^(8-8)\n \n 2^4 \cdot 2^m =(2^2 )^(0) \n \n2^(4+m)=2^0\n \n4+m=0 \n \nm=-4 \n \nAnswer : \ F. \ \ - 4

A dump truck is unloading sand that falls into a conical pile. Find the height of the cone when the diameter of the pile is 16 ft and the volume of the sand is 550 ft3. Round your answer to the nearest tenth.

Answers

Answer:

8.21

Step-by-step explanation:

formula is:

V= 3(volume)/(pie(diameter))

you plug everything in but when you go to plug in your diameter you need to use the radius. the radius is always half of the diameter.

10 points i need help i need to finish in 1 hourhow much does it cost to buy 3 drinks​

Answers

Answer:

4.50

Step-by-step explanation:

3 divided by 2 is 1.5, which is equivalent to $1.50. So each drink cost 1.50. 1.50 x 3 = 4.50.

3 over 4 plus 5 over 6 divided by 2 over 3

Answers

The answer is 57/24 or 19/8 if they want you to simplify
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