Ask question

Ask question

All categories

3 years ago

13

Which of the following functions is represented by the statement, “A number is ten less than four times another number”? f ( x )

= − 4 x − 10 f ( x ) = − 4 x − 10 f ( x ) = 4 x − 4 f ( x ) = 4 x − 4 f ( x ) = 4 x − 10 f ( x ) = 4 x − 10 f ( x ) = − 10 x + 4

1 answer:

11111nata11111 [884]3 years ago

3 0

Answer:

f ( x ) = 4 x − 10

Step-by-step explanation:

You might be interested in

BRAINLIESSSSTTTT!!!

trapecia [35]

A. (-5,1)
B. (-5,4)
C. (-2,4)

6 0

3 years ago

What is the value of k?<br><br> -3 ( k + 7 ) - 5k + 4 = 23

Digiron [165]

Answer: k = -5

explanation-

distribute: -3k + -21 - 5k + 4= 23

combine: -8k -17 = 23

add 17 to both sides: -8k = 40

divide both sides by -8: k=-5

6 0

3 years ago

Read 2 more answers

Click and place the appropriate equivalent forms of the numbers shown.

Gre4nikov [31]

Answer:

64% = 16/25 = 0.64

12.5% = 1/8 = .125

140% = 1 and 2/5 = 1.4

275% = 2 and 3/4 = 2.75

8%= 2/25 = 0.08

Step-by-step explanation:

i hope this helps if it does please give brainliest

3 0

3 years ago

Read 2 more answers

Use distributive property to factor method 1. Use distributive property to expand method 2.

sasho [114]

Step-by-step explanation:

I guess method 1 means to deal with whole factors.

x + 5 = (x - 2)(x + 5)

for (x + 5) <> 0 we can divide both sides by this factor :

1 = x - 2

x = 3

for the second solution we deal with

x + 5 = 0

x = -5

so, for x = -5 and x = 3 both functions deliver the same output, and these are the intersection points.

method 2 : we multiply the expression out and solve it then

x + 5 = (x - 2)(x + 5)

x + 5 = x² + 5x - 2x - 10 = x² + 3x - 10

0 = x² + 2x - 15

the general solution to such a square equation is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -15

x = (-2 ± sqrt(2² - 4×1×-15))/(2×1) =

= (-2 ± sqrt(4 + 60))/2 = (-2 ± sqrt(64))/2 = (-2 ± 8)/2 =

= -1 ± 4

x1 = -1 + 4 = 3

x2 = -1 - 4 = -5

and you get the 2 solutions again. as expected, they are the same as with method 1, of course.

4 0

2 years ago

A scale on a map shows that 2 inches = 25 miles.

Simora [160]

A:
2 inches - 25 miles
x inches - 60 miles

Set up a proportion:
$\frac{2}{25} = \frac{x}{60} \\ \\
\frac{2}{25} \times 60=x \\ \\
\frac{120}{25}=x \\ \\
x=4.8$

4.8 inches on the map represent 60 miles.

B:
2 inches - 25 miles
1/4 inches - x miles

Set up a proportion:
$\frac{2}{25}=\frac{\frac{1}{4}}{x} \\ \\
\frac{2}{25}x=\frac{1}{4} \\ \\
x=\frac{1}{4} \times \frac{25}{2} \\ \\
x=\frac{25}{8} \\ \\
x=3.125$

3.125 miles are represented by 1/4 inches on the map.

4 0

3 years ago

Read 2 more answers