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3 years ago

PLEEEEEEEEASE HELP ME ASAP

Mathematics

1 answer:

nadya68 [22]3 years ago

3 0

Think of F(x) is y so the domain would be the opposite side so the answer would be the X side so F -4 -1 0 2 and 7

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For her cell phone plan, Heather pays $30 per month plus $0.05 per text. She wants to keep her bill under $60 per month. Which i

vazorg [7]

Answer:

Step-by-step explanation:

60>0.05T+30

30>0.05T

600>T

8 0

3 years ago

Someone help me... please show work

frutty [35]

Answer:

x=5

Step-by-step explanation:

Set the 2 equations equal to each other and solve for x.

11x-28=7x-8

add 28 to both sides (-8+28=20)

11x=7x+20

subtract 7x from both sides (11x-7x=4x)

4x=20

divide both sides by 4 to isolate x (20/4=5)

x=5

7 0

4 years ago

Z+k, when z=1 and k = 7

Vinvika [58]

Answer:

Step-by-step explanation:

Replace the variables with numbers.

1+7=8

6 0

3 years ago

Read 2 more answers

Write a quadratic equation in standard form that has roots of -12 and 2

djyliett [7]

Answer:

x² + 10x - 24

Step-by-step explanation:

Given the roots are x = - 12 and x = 2 then the corresponding factors are

(x + 12) and (x - 2) and their product equals zero , that is

(x + 12)(x - 2) = 0 ← expand using FOIL

X² + 10X - 24 = 0

5 0

3 years ago

Randy, Sandy and Todd are my cousins and their combined age is 87 years. Randy is four times as old as Sandy, but Todd is actual

NISA [10]

Answer:

Randy is 48 years old

Sandy is 12 years old

Todd is 27 years old

Step-by-step explanation:

Given

Represent their ages with the first letters of their names:

$R + S + T = 87$

$R = 4 * S$

$T = 15 + S$

Required

Determine their individual ages

We'll solve the above equations using substitution method of simultaneous equations

Substitute 15 + S for T and 4 * S for R in $R + S + T = 87$

This gives:

$4 * S + S + 15 + S = 87$

$4 S + S + 15 + S = 87$

Collect Like Terms

$4 S + S + S = 87 - 15$

$6S = 72$

Divide through by 6

$S = 72/6$

$S = 12$

This implies that Sandy is 12 years old

Substitute 12 for S in $R = 4 * S$ and $T = 15 + S$

$R = 4 * 12$

$R = 48$

$T = 15 + 12$

$T = 27$

This implies that Randy is 48 years old and Todd is 27

7 0

3 years ago