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Korolek [52]
3 years ago
9

Mulitply the binomials and identify the value of "B" in the product. (−2x + 3)(x + 8) = −2x2 −Bx + 24 {"version":"1.1","math":"M

ulitply the binomials and identify the value of "B" in the product. (-2x + 3)(x + 8) = -2x2 -Bx + 24"}
Question 6 options:

7


16


19


13
Mathematics
1 answer:
RUDIKE [14]3 years ago
3 0
For
(c+d)(ex+f)
the expanded form is
dex^2+dex+cfx+df
(ce)x^2+(de+cf)x+(df)
ax^2+bx+c
the value of a is ce
the value of b is de+cf
the value of c is df


so

(-2x+3)(x+8)
(-2x+3)(1x+8)
b is 3*1+-2*8=3-16=-13

answer is -13
so pick 13 because we have -B, so B=13
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2 times what eqvals 49
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So what you can do is take 49 and divide it by 2 cause times is multiplication so if you take 49 and divide that by 2 you would get 24.5. Now if you plug so like 24.5 · 2 would would get 49.
~Good Luck~
4 0
3 years ago
Write each of the following numerals in base 10. For base twelve, T and E represent the face values ten and eleven, respectively
uysha [10]

(a)

421₅ = 4×5² + 2×5¹ + 1×5⁰

… = 100 + 10 + 1

… = 111

(b)

11101₂ = 1×2⁴ + 1×2³ + 1×2² + 0×2¹ + 1×2⁰

… = 16 + 8 + 4 + 0 + 1

… = 29

(c)

13T₁₂ = 1×12² + 3×12¹ + 10×12⁰

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… = 190

7 0
2 years ago
Marguerite is selling space in an advertising book for a community fund raising event. Each 1/4 page in the book costs $15.50. W
Vanyuwa [196]
It would be 46.50 dollars
4 0
3 years ago
Molly's snowboard is 150 cm long; Pete's is 16% longer. How long is Pete's snowboard?​
Amiraneli [1.4K]

Answer:

174 centimeters

Step-by-step explanation:

You take 150 and divide it by 10 which gives you 15. since you divide it by 10 and it gives you 15 that means ten percent is 15 centimeters. since we need to find out what the 16 percent is we take the 15 and divide that by 10 which gives us 1.5. That tells us every 1 percent, is 1.5 centimeters. you take the 150 and add 15 and that gives you 165. We have already done 10 percent out of the 16 percent . Now we have to figure out how much the rest of the 6 percent is so we take the 1.5 and multiply it with the 6 and we get a 9. That covers up for the rest of the 6 percent out of the 16 percent. Now we add 165 with 9 to get our answer of 174 centimeters.

4 0
3 years ago
Jessie bought f bags of potting soil for $2.00 each. Which expression shows how much Jessie paid?
Natalija [7]

Answer:

B. 2f

Step-by-step explanation:

give brainliest please :)

3 0
3 years ago
Read 2 more answers
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