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3 years ago

The product of two numbers is -30, but their sum is -13. What are these two numbers?

Mathematics

2 answers:

inn [45]3 years ago

4 0

Answer:

2 & -15

Step-by-step explanation:

2 * -15 = -30

2 + (-15) = -13

Nata [24]3 years ago

3 0

<h3>Answer: -15 and 2</h3>

You find this through trial and error.

A much more efficient way is to solve x^2-13x-30 = 0 using the quadratic formula. You'll find the two solutions to be x = 15 and x = -2

Going from those solutions, we get x-15 = 0 and x+2 = 0 which then turn into (x-15)(x+2) = 0 through the zero product property.

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X + 18 greater than or equals 26

cricket20 [7]

Answer:

x + 18 ≥ 26

Step-by-step explanation:

"greater than or equals": ≥

x + 18 ≥ 26 is your answer.

If you are trying to solve it so you isolate x, subtract 18 from both sides:

x + 18 (-18) ≥ 26 (-18)

x ≥ 26 - 18

x ≥ 8

x ≥ 8 is your answer.

5 0

2 years ago

Read 2 more answers

Can somebody help me out

Alex_Xolod [135]

First one is C (18 sq units)

Second one is A (12sq2 units)

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2 years ago

Determine 2 additional fractions that would reduce to one fourth?

Len [333]

Answer:

2/8, 4,16

Step-by-step explanation:

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3 years ago

Graph y > x^2 - 5. Click on the graph until the correct one appears.

kenny6666 [7]

$y=x^2\\\\for\ x=\pm2\to y=(\pm2)^2=4\to(-2;\ 4);\ (2;\ 4)\\\\for\ x=\pm1\to y=(\pm1)^2=1\to (-1;\ 1);\ (1;\ 1)\\\\for\ x=0\to y=0^2=0\to (0;\ 0)$

Shift the graph of the function y = x², 5 units down /look at the picture #1/.

$y > x^2-5$ /look at the picture #2/ - your answer

7 0

3 years ago

Read 2 more answers

Given X is midpoint of RS , MX =XS Prove Mx =RX

xz_007 [3.2K]

Answer:

Transitive Property

Step-by-step explanation:

Since X is the midpoint, it bisects the points RS. If MX=XS, and RS is the same as XS, then they are the same. This also follows the Transitive propety (if a=b and b=c, then a=c)

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2 years ago