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ladessa [460]
3 years ago
9

What's this? I don't know

Mathematics
1 answer:
AveGali [126]3 years ago
3 0

Answer:

it's a quadratic formula

Step-by-step explanation:

in the formula, substitute the value of <u>a as 1, b as 2 and c as -8</u>

then, you will get ur answer

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A 24 inch board is cut into 3 pieces so that the second piece is twice as long as the first and the third is 3 times as long as
Lady_Fox [76]

Answer:

The answer to your question is:  first piece = 4 in, second piece = 8 in, third piece = 12 in

Step-by-step explanation:

Data

total length = 24 inches

first piece = x in

second piece = 2x

third piece = 3x

Equation

               x + 2x + 3x = 24

               6x = 24

               x = 24/6

               x = 4               length of the first piece

second piece = 2(4) = 8 inches

third piece = 3(4) = 12 inches

3 0
2 years ago
Read 2 more answers
Given: f(x) = 3x-7, g(x)=2x2 -3x+1, h(x)=4x+1, k(x) =-x2+3 Find: k(x) +g(x)​
Afina-wow [57]

Answer:

k(x) + g(x) = x² - 3x + 4

General Formulas and Concepts:

<u>Alg I</u>

  • Combining like terms

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 3x - 7

g(x) = 2x² - 3x + 1

h(x) = 4x + 1

k(x) = -x² + 3

<u>Step 2: Find k(x) + g(x)</u>

  1. Substitute:                              k(x) + g(x) = -x² + 3 + 2x² - 3x + 1
  2. Combine like terms (x²):        k(x) + g(x) = x² + 3 - 3x + 1
  3. Combine like terms (Z):         k(x) + g(x) = x² - 3x + 4
7 0
2 years ago
I need help with LINES!!!! ASAP!!!!!!
Mumz [18]

Answer:

∠ 2 = 104°

Step-by-step explanation:

Since the trees are parallel, then

∠ 2 and 76° are same- side interior angles and are supplementary, thus

∠ 2 + 76° = 180° ( subtract 76° from both sides )

∠ 2 = 104°

6 0
2 years ago
Pleaseeeeeeeeess help meeee ​
stich3 [128]

Answer:

7 and 1/8 is the correct answer

Step-by-step explanation:

Multiply the fractions I think.

6 0
3 years ago
Brandon has a points card for a movie theater. He receives 70 rewards points just for signing up. He earns 12.5 points for each
MariettaO [177]

Answer:

5 visits

Step-by-step explanation:

70 + 12.5 = 82.5 points

145 - 82.5 = 62.5

62.5 ÷ 12.5 = 5

5 visits.

3 0
3 years ago
Read 2 more answers
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