Evaluate a + b for a = 43 and b = -29. HELP ME I ONLY HAVE 1 hourrr

Mathematics

2 answers:

iren [92.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

a + b = 43 +(-29) =43-29 = 14

worty [1.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

Substitute the given values for a and b into the expression and evaluate

a + b = 43 + (- 29) = 43 - 29 = 14

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Classify the polynomial 5x^3+4x-2 by degree

Kaylis [27]

Hightest exponent is 3
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C is answer

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3 years ago

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Naddik [55]

You use the FOIL method, and how you do this is -

(x - 7) (x + 8)

Multiply the first x by both numbers in the second factor. Which means, you multiply x by x and 8, the two in (x + 8).

With this, you get -
x^2 + 8x

Then do the same thing with -7.

-7x - 56

Then combine the two.
x^2 + 8x - 7x - 56

Combine like terms.

x^2 + x - 56

So now, 7 x 8 is 56
And -7 + 8 would be 1. And that is the value of “x” which is b in the form a^2x + bx + c.

Now with this, you take those two numbers and make the factors =
(x + 8) (x - 7)

Then you set these equal to 0.

x + 8 = 0

Subtract the 8 from both sides.

x = -8

————

x - 7 = 0

Add the 7 on both sides.

x = 7

Answer: A

8 0

3 years ago

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Solve the following problems. Choose the letter of the correct answer. (Show your complete solutions.)

motikmotik

i didnt understand the question because of my English sorry

we all know that the total of degrees is 180 so 70+70=140

180-140=40

so the answer is 40

we have a figure with 4 angle so the total of degrees is 360 so the answer is 126

the answer most be 50 becuse we have a Special degree witch always equal 90 if we have recatngle so

x+40=90