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VikaD [51]
2 years ago
9

What of b is a solution to this equation? 6b=6 A) b=1 B)b=8

Mathematics
1 answer:
weqwewe [10]2 years ago
4 0

Answer:

b=1

Step-by-step explanation:

6*1=6

6*8=48

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How many solutions does the equation below have? 1/(-6-8x) = -3- 1x​
uranmaximum [27]

Answer:

This equation has 2 solutions.

1. x=\frac{-15+\sqrt{89}}{8}

2. x=-\frac{15+\sqrt{89}}{8}

5 0
1 year ago
Solve the equations by factoring:<br><br>x^2−3x−40=0<br><br>4x^2−81=0
Alja [10]

Answer:

see explanation

Step-by-step explanation:

Given

x² - 3x - 40 = 0

Consider the factors of the constant term (- 40) which sum to give the coefficient of the x- term (- 3)

The factors are - 8 and + 5, since

- 8 × 5 = - 40 and - 8 + 5 = - 3, thus

(x - 8)(x + 5) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 8 = 0 ⇒ x = 8

x + 5 = 0 ⇒ x = 5

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

Given

4x² - 81 = 0 ← this is a difference of squares and factors in general as

a² - b² = (a + b)(a - b), thus

4x² - 81

=(2x)² - 9²

= (2x + 9)(2x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

2x + 9 = 0 ⇒ 2x = - 9 ⇒ x = - \frac{9}{2}

2x - 9 = 0 ⇒ 2x = 9 ⇒ x = \frac{9}{2}

8 0
3 years ago
Read 2 more answers
The sign says that the price marked on all music equipment is 30% off the regional price you buy an electric guitar for the sale
kolezko [41]
I NEED 5PT but the answer 95 and 1/2 i think
8 0
3 years ago
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Which function has a minimum and is transformed to the right and down from the parent function, f(x) = x2?
Aliun [14]

Answer:

The last choice is the one you want

Step-by-step explanation:

First of all, a parabola has a minimum value if it is a positive parabola, one that opens upward.  The first and the third parabolas are negative so they open upside down.  That leaves us with choices 2 and 4.  We find the side to side and up or down movement by finishing the completion of the square that has already been started for us.  Do this by factoring what's inside the parenthesis into a perfect square binomial.  

The second one factored becomes:

g(x)=4(x-3)^2+1

which reflects a shift to the right 3 and up 1.  Not what we are asked to find.

The fourth one factored becomes:

g(x)=8(x-3)^2-5

which reflects a shift to the right 3 and down 5.  That's what we want!

8 0
2 years ago
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A class has 27 students. Fifteen are boys and the rest are girls. What is the ratio of girls to total students?
LenaWriter [7]

Answer:

12:27

Step-by-step explanation:

27 - 15 = 12

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12:27 is the ratio of girls to the total amount of students.

8 0
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