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2 years ago

If a= -3 what is 3a^2

Mathematics

1 answer:

trapecia [35]2 years ago

4 0

Answer:

Step-by-step explanation:

If a= -3 what is 3a^2 = 27

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John paid $50 for renting a cycle for 5 hours. Which graph shows the relationship between the cost of renting a cycle for differ

SpyIntel [72]

Answer:

Graph A <==

Step-by-step explanation:

$ 50 for 5 hours......50/5 = 10...thats $ 10 per hr

so the equation would be : y = 10x...with x being the number of hrs and y being the total cost.

So ur x axis will be the hours and your y axis will be the total cost.

so ur answer is :the title of the graph is cycle renting. the x axis (the horizontal axis)...since it is the hours, will be labeled 0,1,2,3,4,5,6

the y axis (the vertical axis)...since it is the total cost, will be labeled

0,10,20,30,40,50,60. points are plotted on (1,10),(2,20), and (3,30)

6 0

3 years ago

Read 2 more answers

Find the value of expression - 17x-19xpwer4 - 21x power 2,when x=3

Marrrta [24]

Answer:

$-17x - 19x^4 - 21x^2 = -1779$ when $x = 3$

Step-by-step explanation:

Given

$-17x - 19x^4 - 21x^2$

$x = 3$

Required

Solve

Substitute 3 for x in $-17x - 19x^4 - 21x^2$

$-17x - 19x^4 - 21x^2 = -17*3 - 19*3^4 - 21*3^2$

Evaluate all exponents

$-17x - 19x^4 - 21x^2 = -17*3 - 19*81 - 21*9$

$-17x - 19x^4 - 21x^2 = -51 - 1539- 189$

$-17x - 19x^4 - 21x^2 = -1779$

7 0

3 years ago

Item 4 Solve the equation. 23h−13h+11=8 h=

Naily [24]

Answer is 20 by plugging the 4 in the equation it equals 20

3 0

3 years ago

When an equation in one variable is solved using a system of equations, the solution is always the blank of each intersection.

Vera_Pavlovna [14]

Answer:

x-coordinate.

Step-by-step explanation:

its the answer for edge.

8 0

3 years ago

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What is the answer to 5+x=-9

aleksandr82 [10.1K]

5+x=-9

Use the subtractive property of equality to isolate x.

5+x=-9

-5 -5

x=-14

The value that satisfies x is -14. You can check your work by substituting x as -14 and checking if the equation is satisfied.

5+x=-9

x=-14

5+(-14)=-9

5-14=-9

-9=-9

the answer is correct. Succinctly, x=-14.

6 0

3 years ago

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