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Anvisha [2.4K]
3 years ago
11

PLEASE HELP. are the values of the expressions 2m−13 and m+3 equal?

Mathematics
2 answers:
antoniya [11.8K]3 years ago
8 0

Answer:

Change m into 16.

m = 16

Step-by-step explanation:

So let’s start off by changing the expression to an equation.

Well let’s see to make the values equal we have to find the value of m first.

So we can set up the following equation -> 2m-13=m+3.

So we have to simplify the equation to find m.

First off we want all the m’s on one side so we subtract the m on the left onto 2m and we just get m. The equation now looks like this -> m-13=3.

Now we have to get all the whole numbers on one side so we add 13 onto 3 and we get 16. Now we have m=16, so now we have to plug 16 in on the equation to see if they are equal. So we have 2(16)-13=(16)+3.

Now let’s simplify it, 2*16=32-13 is 19.

Time for the next side 16+3 is 19 so m replaced as 16 makes the expressions equal.

Nastasia [14]3 years ago
7 0

Answer:

yes

Step-by-step explanation:

m=16

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A + (b-4) when a-24 and b-7
lara31 [8.8K]

Answer:

a=24

b=7

now

24+(7-4)

24+3

27

so the answer is 27

5 0
3 years ago
An astronaut on the moon throws a baseball upward. The astronaut is 6 ft 6 in tall, and the initial velocity of the ball is 40 f
weqwewe [10]

Answer:

t = 0.293 s and 14.52 s

Step-by-step explanation:

The heights of the ball in feet is given by the equation as follows :

S = -2.7t^2+40t+6.5

Where t is the number of seconds after the ball was thrown.

We need to find is the ball 18 ft above the moon's surface.

Put S = 18 ft

-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0

It is a quadratic equation. Its solution is given by :

t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s

So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.

8 0
3 years ago
Help, please!!!<br><br> Simplify. (4/9)^2=
alina1380 [7]

Answer:

Exact form: \frac{16}{81}

Decimal form: 0.1975308

8 0
2 years ago
Find the area of an equilateral triangle whose value is 18 cm​
rusak2 [61]

Answer:

18 + 18 + 18 = 18 \times 3 = 54

Step-by-step explanation:

I ain't sure but it might help you out:D

3 0
3 years ago
Read 2 more answers
What is 5/16 as a measurement decimal
Lelu [443]

Answer:

Step-by-step explanation:

a. 0.31

8 0
3 years ago
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