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3 years ago

What numbers multiplie to equal -30 but add to equal -1

Mathematics

1 answer:

VashaNatasha [74]3 years ago

5 0

Answer:

5 and -6.

Step-by-step explanation:

When you add 5 and -6, you get -1. When they are multiplied, you get -30. I just did this by finding all of the factors that went into 30 and making one negative.

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All of the middle school mathletes solve math problems at the same pace. Working together, six mathletes complete all of the sum

guapka [62]

Answer:

5 1/2 hours

Step-by-step explanation:

by a factor of 5 means times 4

6*4=24

22/4=5.5 hours

8 0

3 years ago

There are about 320 million people living in the United States. Of these, how many would you predict wear corrective lenses

tiny-mole [99]

Answer:

240 million

Step-by-step explanation:

Google said that three out of four people wear corrective lenses which is also 75%. So whats 75% out of 320 million? Half of 320 million is 160 million. Half of 160 million is 80 million, 160 million plus 80 million is 240 million.

8 0

3 years ago

Read 2 more answers

Which pair of values could NOT be the roots of a quadratic polynomial?

DENIUS [597]

Answer:

Part c

Step-by-step explanation:

In quadratic equations of real coefficients, the complex roots always occur in conjugate bases. It means, if, 2 + 3i is one of the roots and then the second root must be 2 - 3i.

7 0

3 years ago

Read 2 more answers

Find the solution to the system of equations. 4x + 3y = –1 3x – 9y = 33

alexandr1967 [171]

Answer:

Step-by-step explanation:

4x + 3y = -1 --------------(i)

3x - 9y = 33 -------------(ii)

multiply equation (i) by 3

(i)* 3 12x + 9y = -3

(ii) 3x - 9y = 33

add, 15x = 30

x = 30/15

x = 2

Put x =2 in Equation (i)

4*2 + 3y = -1

8 +3y = -1

3y = -1-8

3y = -9

y = -9/3

y= -3

5 0

3 years ago

HELP ME FIND THE ANGLE HELP ME FIND ANGLE A

romanna [79]

Answer:

32 degrees

Step-by-step explanation: So they tell you BE is congruent to BC so triangle BCE is isosceles. We know that angle C is 35 degrees and the triangle is isosceles so angle E is 35 degrees too. Now we do 180-(35+35) and that equals 110 so angle B is 110. And we know that angle EBC and FBA are supplementary angles so 180-110 is 70 degrees so angle FBA is 70 degrees and you can do the same thing with angle DFB and AFB so 180-102 degrees is 78 degrees and to find angle a you just do 180-(70+78) and that equals 32 degrees so angle A is 32 degrees. :)

4 0

3 years ago