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3 years ago

Negative two point five times twenty

Mathematics

2 answers:

love history [14]3 years ago

8 0

Hello the answer is -50

Tresset [83]3 years ago

4 0

Answer:

-50

Step-by-step explanation:

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I NEED HELP PLEASE, THANKS!! :)

Lisa [10]

Answer:

The answer is

$\frac{1372}{3} \pi \: {cm}^{3}$

Step-by-step explanation:

First you have to find the radius of sphere by dividing diameter by 2 :

$radius = diameter \div 2$

Let diameter = 14,

$radius = 14 \div 2$

$radius = 7 \: cm$

Next you have to use the volume of sphere formula :

$v = \frac{4}{3} \times \pi \times {r}^{3}$

Let r = 7,

$v = \frac{4}{3} \times \pi \times {7}^{3}$

$v = \frac{4}{3} \times \pi \times 343$

$v = \frac{1372}{3} \pi \: {cm}^{3}$

7 0

3 years ago

F(x) = 8 - 4x has one solution.

Serhud [2]

Answer:

Step-by-step explanation:

A polynomial of degree n appears to have n solutions.

5 0

3 years ago

Read 2 more answers

Which table of ordered pairs represents a proportional relationship?

Anna11 [10]

Answer: a

Step-by-step explanation: i took the test

6 0

3 years ago

What is the value of y in the equation 4x +3 y= 23 when x=2 , x=6

balandron [24]

Answer:

5, -⅓

Step-by-step explanation:

x = 2:

4x + 3y = 23

3y = 23 - 4(2)

3y = 15

y = 5

x = 6:

4x + 3y = 23

3y = 23 - 4(6)

3y = -1

y = -⅓

8 0

2 years ago

* WORTH 30 Points *

yawa3891 [41]

Any multiple of (-2x+3y=18) would constitute an "other equation" forming a system with an infiinite number of solutions. The reason for that is that the two equations would be "dependent."

On the other hand, looking at the system

-2x+ 3y= 18
-2x+ 3y= 19

we see that there is no solution. Why? Because -2x + 3y cannot equal 18 and 19 at the same time. You'd have two non-intersecting, parallel lines.

7 0

3 years ago