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sesenic [268]
3 years ago
6

Plz help. will give alot of points .

Mathematics
2 answers:
otez555 [7]3 years ago
7 0

The problem has you solving 4x = 88 and the first step - which is the proper step - is to divide by 4 on both sides. What it does is the following:

--gets x alone on one side of the equation

--keeps the equation balanced because it's on both sides

--Undoes the multiplying. Dividing and multiplying are inverse, or, undoing operations. 4 and x are put together with multiplying - so we use dividing to take it apart.

The idea of using 4 because it's a factor is the wrong choice. If the equation were 5x = 88 and you divide by 4, you aren't getting a single 1x alone. So the "divide because it's a factor" choice is wrong.


Thus the upper left choice is NOT a good reason and is the best answer.

mr Goodwill [35]3 years ago
3 0
Dividing 4× by 4 isolates x on one side of the equation.

all they others is a good reason to divide by 4

hope it helps
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Find H <br> Need help please!!!!
icang [17]

Answer:

16

Step-by-step explanation:

use the acroname sohcahtoa

<em><u>sin </u></em><em><u>6</u></em><em><u>0</u></em><em><u>=</u></em><em><u>8</u></em><em><u>√</u></em><em><u>3</u></em><em><u>/</u></em><em><u>h</u></em>

sin60=0.8660 while 8√3=13.8564

divide both side by 0.8660

0.8660/0.8660=13.8564/0.8660

h=16.0

5 0
3 years ago
Read 2 more answers
Solve the system of linear equations by substitution 12x+y=−4 y=2x+16
ki77a [65]

Answer:

Your solution is (-10/7, 92/7)

Step-by-step explanation:

12x + y = -4

y = 2x + 16

To use substitution, we want to plug one variable's equation into the other equation.

We can see that y is already solved for us. Plug y into the first equation.

12x + y = -4

12x + (2x + 16) = -4

Combine like terms.

14x + 16 = -4

Subtract 16 from both sides.

14x = -20

Divide both sides by 14.

x = -20/14

x = -10/7

Now that we know x, we will plug it into one of the other equations.

y = 2x + 16

y = 2(-10/7) + 16

Multiply.

y = -20/7 + 16

Add.

y = -20/7 + 112/7

y = 92/7

Your solution is (-10/7, 92/7)

Hope this helps!

8 0
2 years ago
In a bag are 5 oranges and 4 mangoes select one replaces it and select another . What is the probability that both selections we
Serggg [28]

Answer:

P(orange)x P(orange)= 5/9 x 5/9= 25/81

Step-by-step explanation:

4 0
3 years ago
Which of the following shows 2 + (x + 3y) rewritten using the Associative Property of Addition?
Eduardwww [97]
The answer is B. (2 + x) + 3y.

The associative change happened when they just moved the parenthesis.

Hope this helps!
8 0
2 years ago
Read 2 more answers
If there are 19 questions and each question has 4 answers, what is the probability she will answer at least one question correct
gregori [183]

Answer:

0.9958

Step-by-step explanation:

P(being correct) = 1/4 = 0.25

Hence, p = 0.25

n = 19

P(x ≥ 1) = p(x = 1) + p(x = 2) +... + p(x = 19)

Using the binomial probability formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

However, to save computation time, we could use a calculator :

Using a calculator,

P(x ≥ 1) = 0.99577

P(x ≥ 1) = 0.9958

7 0
2 years ago
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