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Tresset [83]
3 years ago
15

4x^2 + 7x - 2 = 0 all the steps using quadratic formula ​

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0

the answer is 55

hope this helped

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PLEASE HELP, GIVING 55 POINTS IF YOU ANSWER (08.03/08.05 MC) A pair of equations is shown below: y = 3x − 5 y = 6x − 8 Part A: E
Andrew [12]

Answer:

  A. (1, -2)

  B. the lines intersect at the solution point: (1, -2).

Step-by-step explanation:

A. The equations can be solve by substitution by using the y-expression provided by one of them to substitute for y in the other.

This gives ...

  3x -5 = 6x -8

Adding 8-3x to both sides, we get ...

  3 = 3x

Dividing both sides by 3 gives ...

  1 = x

Substituting this value into the first equation, we can find y:

  y = 3(1) -5 = -2

The solution is (x, y) = (1, -2).

__

B. The lines intersect at the solution point, the point that satisfies both equations simultaneously. That point is (1, -2).

8 0
3 years ago
In trapezoid ABCD with bases AB and DC , diagonals intersect at point O. Find the length of diagonal BD , if BO=6 cm and: AO/OC
aalyn [17]

Answer:

8 cm

Step-by-step explanation:

... BO/OD = AO/OC = 3/1

Written another way, this is ...

... OD : BO = 1 : 3

Now, BD = OD + BO, so we have

... BD : BO = (OD +BO) : BO = (1 +3) : 3 = 4 : 3

That is, BD = 4/3 × BO

... BD = 4/3 × 6 cm = 8 cm

6 0
2 years ago
Which of the following is √49 simplified?
ZanzabumX [31]

Answer:

7

Step-by-step explanation:

Put √49 in a calculator and it will give you 7.

5 0
3 years ago
Read 2 more answers
What is the answer to -5+(-5r)+10
Law Incorporation [45]

Answer:

=−5r+5

Step-by-step explanation:

Let's simplify step-by-step.

−5−5r+10

=−5+−5r+10

Combine Like Terms:

=−5+−5r+10

=(−5r)+(−5+10)

=−5r+5

4 0
2 years ago
Read 2 more answers
Find the value of x. If your answer is not an integer, express it in simplest radical form.<br>​
LenaWriter [7]

Step-by-step explanation:

4 \\  {x}^{2}  =  {16}^{2}  +  {14}^{2}  \\  {x}^{2}  = 256 + 196 \\  {x}^{2}  = 452 = 2 \sqrt{113}  = 21.26

5 \\  {x}^{2}  =  {8}^{2}  +  {15}^{2}  \\  {x}^{2}  = 64 + 225 \\  {x}^{2}  = 289 \\ x = 17

5 0
2 years ago
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