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STatiana [176]
3 years ago
12

Expand. Your answer should be a polynomial in standard form. (b^2+5)(−b^2+7)=

Mathematics
1 answer:
Blizzard [7]3 years ago
6 0

(b^2+5)(−b^2+7)

Use the FOIL METHOD to expand.

-b^4 + 7b^2 - 5b^2 + 35

-b^4 + 2b^2 + 35

Did you follow?

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GEOMETRY. 20 POINTS. PLEASE DO NOT GIVE STUPID ANSWERS.
sp2606 [1]
Hey there!

A quadrilateral has 360 degrees. So add all the degrees together to 360. 9x+1+5x-12+8x+61+90=360. 90 degrees is in the bottom left corner. Combine like terms. 22x+140=360. Subtract 140 from each side. 22x=220. Divide 22 on each side to get x=10. Plug in 10 for x in angle D. 5(10)-12=38. The measure of angle D is 38 degrees.

I hope this helps!
3 0
3 years ago
Pleasee help asap! will give brainiest
AfilCa [17]

Answer:x=-0.8

5x - 7 =3

      -7   -7

         5/5x  = -4/5

                     x = -0.8

8 0
3 years ago
Jordan already knew 2 appetizer recipes before starting culinary school, and he will learn 2 new appetizer recipes during each w
kirill115 [55]

Answer:

w=2r

r= w/2

r- w/2 = 0

w -2r= 0

Step-by-step explanation:

Let w be the number of weeks and r be the number of recipes learnt . So he will learn 2 recipes each week .Equating gives

w=2r

when w= 1

w= 2(1) = 2

For 1st week 2 recipes are learned

when w= 2

w= 2( 2) = 4

For 2nd week 4 recipes are learned.

or

when r= 2

r= w/2

r =2/2  = 1  one  recipe is learned in half of the week  

r- w/2 = 0

or

w -2r= 0

6 0
3 years ago
How do I find this arc measure?
Feliz [49]

Check the picture below.

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3 years ago
EASY MATH ILL GIVE BRIANLIST PLEASE HELP, IT HAS TO BE CORRECT
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Here is the answer and steps. Answer:-3/5

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2 years ago
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