All categories

3 years ago

Please explain step by step on how you got the answer.

Mathematics

1 answer:

Jobisdone [24]3 years ago

7 0

The answer is 21

First you po perenthies which would be 8-6=2 the equation now is 5+4×(2)2

Then you to exponents which would be 2×2=4 the equation now is 5+4×4

Now you multiply 4×4=16 the equation is now 5+16

Now you add 5 and 16 to get 21

You might be interested in

Can someone help plssss<br> which of the equations below could be the equation of this parabola?

RideAnS [48]

Answer:

Step-by-step explanation:

Both of the y= make upward parabolas

It is also going into the positive direction so it is $x = \frac{1}{4}y^2$

6 0

3 years ago

Read 2 more answers

Can somebody help me please.<br>

gayaneshka [121]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Six times a number plus twice a second number is four. Twice the first number plus four times the second number is eighteen.

Debora [2.8K]

Answer:

x=-1, y=5. (-1, 5). The first number is -1 and the second number is 5.

Step-by-step explanation:

6x+2y=4

2x+4y=18

---------------

-2(6x+2y)=-2(4)

2x+4y=18

-------------------------

-12x-4y=-8

2x+4y=18

----------------

-10x=10

x=10/-10

x=-1

6(-1)+2y=4

-6+2y=4

2y=4-(-6)

2y=4+6

2y=10

y=10/2

y=5

8 0

3 years ago

Find x and y using subsitution<br><br> -3x + y = 6<br> 5x + 2y =23

vazorg [7]

$\left\{\begin{array}{ccc}-3x+y=6&|\text{add 3x to both sides}\\5x+2y=23\end{array}\right\\\\\left\{\begin{array}{ccc}y=3x+6\\5x+2y=23\end{array}\right\\\\\text{substitute}\ y=3x+6\ \text{to the second equation}\\\\5x+2(3x+6)=23\qquad|\text{use distributive property}\\\\5x+(2)(3x)+(2)(6)=23\\\\5x+6x+12=23\qquad|\text{subtract 12 from both sides}\\\\11x=11\qquad|\text{divide both sides by 11}\\\\\boxed{x=1}\\\\\text{subtract the value of x to the first equation}\\\\y=3(1)+6\\\\y=3+6\\\\\boxed{y=9}$

<h3>Answer: x = 1 and y = 9 → (1, 9).</h3>

4 0

3 years ago

Read 2 more answers

What is the missing term in the factorization? 100.0% - 36 = 4(5x+?) (5x - 3)

alekssr [168]

Answer:

Step-by-step explanation:

if this helps thank you

7 0

3 years ago