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zmey [24]
3 years ago
11

4(a + 2) = -4 whats A

Mathematics
2 answers:
OLga [1]3 years ago
4 0
The answer is -3 because -3+2=-1 then -1(4)=-4
weeeeeb [17]3 years ago
3 0

Answer:

Step-by-step explanation:

use the distributive property first; distribute 4 TO a+2

4(a+2) = 4a+8

once you have got your answer, make the new equation

4a + 8= - 4

Now, solve the equation

4a + 8= - 4

4a = -4-8

4a = -12

a = -12/4   ( always remember to put the sign )

a = -3

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Evaluate the expression below for m=350. 3.5m
aev [14]
Just plug in 350 for 'm':

\sf 3.5m

\sf 3.5(350)

Multiply:

\boxed{\sf 1225}
7 0
3 years ago
The area of a square is 144cm2.what is the measurement of each side​
Dmitry [639]

The area of a square is 144 cm^2. The measurement of each side​ is 12 cm

<u>Solution:</u>

Given, The area of a square is 144 cm^2

We have to find that what is the measurement of each side.

Now, we know that, area of a square = product of side value with another side value.

Let the side value of given square be "s"

Then, <em>Area of square is given as:</em>

\begin{array}{l}{\text {area of square}=s \times s} \\\\ {\text {Area of square}=s^{2}} \\\\ {144=s^{2}} \\\\ {s=\sqrt{144}} \\\\ {s=\sqrt{12^{2}}}\end{array}

On cancelling square root and square on right side,we get

s = 12

Hence, the side value of the square is 12 cm.

8 0
3 years ago
Choose the correct simplification of the expression (2x2y6z5)(5x4y5z3).
erastovalidia [21]

Answer:

The correct option is 4.

Step-by-step explanation:

The given expression is

(2x^2y^6z^5)(5x^4y^5z^3)

Simplify the given expression.

(2x^2y^6z^5)\times (5x^4y^5z^3)

(2\times 5)(x^2x^4)(y^6y^5)(z^5z^3)

10x^{2+4}y^{6+5}z^{5+3}                  [\because x^mx^n=x^{m+n}]

10x^6y^{11}z^8

Therefore correct option is 4.

8 0
3 years ago
Solve the equation using square roots.
Virty [35]

Answer: LAST OPTION.

Step-by-step explanation:

1. You have the following equation:

6x^{2}=54

2. Then you must solve for x, as following:

x^{2}=54/6\\x^{2}=9\\x=\sqrt{9}\\x=+/-3

Therefore, as you can see above, the answer for the exercise is the last option.

7 0
3 years ago
Read 2 more answers
Write the equation of a line that passes through the points (4,6) and (−8,3)
kari74 [83]

Answer:

y= 1/4x+5

Step-by-step explanation:

y=mx+c

to calculate gradient: change in y/change in x

-3/-12 = 0.25

y = 1/4x+c

4 * 1/4 = 1

6-1 = 5

c= 5

Totally:
y= 1/4x+5

5 0
10 months ago
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