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kkurt [141]
3 years ago
15

Please help I'm a little confused!

Mathematics
1 answer:
zaharov [31]3 years ago
8 0

I will have "x" represent the unknown number, or you could use a "?", doesn't matter.

8\leq \frac{x}{-4}     [8 is less than or equal to (≤) the quotient (÷) of a number and -4, so the number is being divided by -4]

If you need to solve this, you need to isolate/get the variable "x" by itself in the inequality:

8\leq \frac{x}{-4}   Multiply -4 on both sides to get rid of the fraction and get "x" by itself

(-4)8\geq \frac{x}{-4} (-4)    When you multiply/divide by a negative number, you flip the sign (< >)

-32 ≥ x          [-32 is greater than or equal to x, or x is less than or equal to -32]

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Which expression represents the composition [g o f o h](x) for the functions below?
spayn [35]

Answer:

5(15x-4)^3

Step-by-step explanation:

f(x) = 5x - 4

g(x) = 5x^3

h(x) = 3x

(gofoh)(x)=g(f(h(x)))

Replace h(x) first

g(f(h(x)))=g(f(3x))

Now we plug in 3x in f(x)

g(f(h(x)))=g(f(3x))=g(5(3x)-4)=g(15x-4)

Now we plug in 15x-4 in g(x)

g(f(h(x)))=g(f(3x))=g(5(3x)-4)=g(15x-4)=5(15x-4)^3

7 0
3 years ago
What two numbers multiply to 6 and add to 31 ?
Paraphin [41]

Answer:

why would i know ?

Step-by-step explanation:

8 0
3 years ago
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2 : 9, 12 : , and : 45.
Ber [7]

Answer:

Sorry. What's the question?

8 0
3 years ago
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Find the value of 3a + 2b -3 when a=-5 and b=-6
UNO [17]

Answer:

-30

Step-by-step explanation:

Substituting values of a and b in equation

3(-5)+2(-6)-3

-15-12-3

-15-15

-30

4 0
3 years ago
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A test worth 125 points has 49 questions on it. Multiple Choice questions are worth 2 points each and short answer questions are
Charra [1.4K]

Answer:

There were 40 2-point questions and 9 3-point questions.

Step-by-step explanation:

To solve this situation, write two equations. One for the number of questions and one for the number of points.

Let x be the number of 2 point questions.

Let y be the number of 5 point questions.

x + y = 49

Now since x are each worth 2 points, the total points is 2x.

And since y are each worth 5 points, the total points is 5y.

So 2x + 5y = 125. Substitute one of the equations into the other to solve for the variables.

x + y = 49 becomes x = 49 - y. Substitute it.

2(49-y) + 5y = 125

98 - 2y + 5y = 125

98 + 3y = 125

3y = 27

y = 9

Substitute y = 9 back into the equation x = 49 - y to find x.

x = 49 - 9

x = 40

5 0
3 years ago
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