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notka56 [123]
2 years ago
7

Please help!! I’ll give brainliest

Mathematics
1 answer:
Tatiana [17]2 years ago
3 0

Answer:

4 and 2/3 from choice A on the promblem

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5|x3 - 21 + 7 when x = -2.
Tomtit [17]

Answer:

-422

Step-by-step explanation:

51[-2]³ - 21 + 7

51[-8] - 14

-408 - 14 = -422

I am joyous to assist you anytime.

6 0
3 years ago
In segment AC, the midpoint is B. If segments AC = 5x-9 and AB = 2x, what is the measure of segment AC.
IgorLugansk [536]

Answer:

The measure of segment AC is 36 units

Step-by-step explanation:

- The mid-point divides the segment into two equal parts in length

- B is the mid point of segment AC

- That means B divides segment AC into two equal parts in length

∴ AB = BC

∵ AC = 5x - 9

∵ AB = 2x

- The two parts AB and BC are equal in length

∴ BC = 2x

∵ AC = AB + BC

- Substitute the values of AB and BC in the expression of AC

∴ AC = 2x + 2x

∴ AC = 4x

∵ AC = 5x - 9

- Equate the two values of AC

∴ 5x - 9 = 4x

- Add 9 to both sides

∴ 5x = 4x + 9

- Subtract 4x from both sides

∴ x = 9

- Substitute the value of x in any expression of AC

∵ AC = 4x

∵ x = 9

∴ AC = 4(9) = 36

* The measure of segment AC is 36 units

8 0
3 years ago
-4 = - 17 + x linear equations
Llana [10]

add 17 to both sides

13 = x

<em>hope this helps</em>

7 0
2 years ago
Read 2 more answers
I need help really bad
sdas [7]

Answer:

the x intercept=(-6,0) and y intercept=(0,14)

Step-by-step explanation:

i used math may but put the m as w, it works

5 0
2 years ago
Consider the graph of the quadratic function y = 3x2 – 3x – 6. What are the solutions of the quadratic equation 0 = 3x2 − 3x − 6
Ilya [14]
Roots of the equation 3x² -3x-6=0 are -1 and 2,
all choices are given wrong
3*2²-3*2-6=0
12-6-6=0
0=0, which is true , so root is 2

3*20²-3*20-6=0
600-60-6=0
534=0  which is wrong, so root is 2, but not 20 
4 0
3 years ago
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