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Charra [1.4K]
3 years ago
12

Consider the expression 7x2 - 4 - 9x. What is the coefficient of x?

Mathematics
1 answer:
Mumz [18]3 years ago
6 0

Answer:

D) 9

Step-by-step explanation:

7 x 2 - 4 - 9x

14 - 4 - 9x

10 - 9x

You could easily see at first that the coefficient of x is 9 because the coefficient is the number that is before the variable, but you can also do the whole process.

Hope this was helpful :)

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Raul can make 4 cutting boards or 3 pencil holders in one hour in his woodworking class. He needs to make 36 items that he can s
gtnhenbr [62]

yo                           yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyooooooo

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4 0
3 years ago
(-6,1) is a point on the graph of y=g(x)
NNADVOKAT [17]

Answer:

(-7, -4)

(-4, 2)

(-4, 1)

Step-by-step explanation:

We know that the point (-6, 1) belongs to the main function g(x)

The transformation

y = g (x + 1) -5

add 1 to the input variable (x) and subtract 5 to the output variable (y)

So the point in the graph of y = g (x + 1) -5 is

x + 1 =-6\\x = -7

y= 1-5\\y = -4

The point is:  (-7, -4)

The transformation

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

subtract two units from the input variable (x), multiply the output variable (y) by -2 and then add 4 units

So the point in the graph of y = -2g(x -2) +4 is

x -2 =-6\\x = -4\\\\y = -2(1)+4\\y = 2

The point is:  (-4, 2)

The transformation

y=g(2x+2)

Multiply the input variable (x) by 2 and then add two units

So the point in the graph of   y=g(2x+2) is

2x +2 =-6\\2x = -8\\x=-4

y=1

The point is:  (-4, 1)

3 0
3 years ago
3. A jump rope is 9 feet long. How long is the jump 4<br> rope in yards?
Inessa05 [86]
The answer is 3 yards.

There are 3 feet in a yard, so if we divide 9 (the length of the rope in feet) by 3, then we get the amount of yards in the rope: 9/3=3.
8 0
3 years ago
Read 2 more answers
Las edades de cuatro hermanos forman una progresión aritmética, y su suma es 32 años. El mayor tiene 6 años más que el menor. Ha
Masteriza [31]

Answer:

The ages of the four siblings are: 5, 7, 9 and 11 years old.

Step-by-step explanation:

The computation of the age of the four siblings is shown below:

Given that

n = 4

a1 =? a2 =? a3 =? a4 =?

a4 = a1 + 6 years

S4 = 32

Based on the above information

As we know that

Sn = (a1 + a4) ×  n ÷ 2

S4 = (a1 + a4) × 4 ÷ 2

32 = (a1 + a1 +6) × 2

16 = 2a1 + 6

 2a1 = 10

 a1 = 10 ÷ 2

= 5

So,  a4 = a1 +6

= 5 +6

= 11

a4 = a1 + (4-1) × d

11 = 5 + 3 × d

d = 6 ÷ 3

= 2

So,

a2 = a1 + d

= 5 + 2

= 7

a3 = a2 + d

= 7 + 2

= 9

Hence, The ages of the four siblings are: 5, 7, 9 and 11 years old.

8 0
2 years ago
(7.3 times 10 to the 8th)(2.4 times 10 to the 3rd)
kondor19780726 [428]

Answer:

7.3 times 10 to the 8th equals 730000000

2.4 times 10 to the 3rd equals 2400

Step-by-step explanation:

7 0
3 years ago
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