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3 years ago

Can someone pls help me with this

Mathematics

1 answer:

Misha Larkins [42]3 years ago

5 0

Can I see the whole question pls

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Find the roots of the following function:<br><br> y = x2 − 7x − 30

DIA [1.3K]

Answer:

x = 3, −10

Step-by-step explanation:

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x.

6 0

3 years ago

The points (–2, 4) and (–2, –2) are vertices of a heptagon. Explain how to find the length of the segment formed by these endpoi

Scrat [10]

Answer:

The segment is 6 units long.

Step-by-step explanation:

The points (–2, 4) and (–2, –2) are vertices of a heptagon. We have to explain how to find the length of the segment formed by these endpoints.

If two points at the ends of a straight line PQ are P( $x_{1},y_{1}$ ) and Q( $x_{2},y_{2}$ ), then the length of the segment PQ will be given by the formula

$\sqrt{(x_{1} - x_{2})^{2} + (y_{1} - y_{2})^{2}}$

Now, in our case the two points are (-2,4) and (-2,-2) and the length of the segment will be

$\sqrt{(- 2 - (- 2))^{2} + (4 - (- 2))^{2}} = 6$ units. (Answer)

5 0

4 years ago

Read 2 more answers

Find the slope of the line that passes through (9,-3) and (9,-8)

miskamm [114]

Answer:

The line has no slope. I hope this helps

7 0

2 years ago

Given the equation y = 3x + 2 , what is the value of x when y = 8? A:2 B:4 C:6 D:9

stiv31 [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

Please help me @marcthetutor please if you cpuld help me as welll anybody please help wuth thorough explaining will mark as brai

Hunter-Best [27]

Answer:

w=3

Step-by-step explanation:

(w+3)x2=4w

2w+6=4w

2w+6-6=4w-6

2w-4w=4w-6-4w

-2w=-6

-2w/2 = -6/2

w=3

7 0

4 years ago