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Verizon [17]
4 years ago
10

Solve for w: 4w^2+49=-28w

Mathematics
2 answers:
lara [203]4 years ago
6 0

Answer:

Fraction form: <u>-7/2</u>

Decimal form: <u>-3.5</u>

andreyandreev [35.5K]4 years ago
3 0

Move all terms to one side

4w^2 + 49 + 28w = 0

Rewrite 4w^2 + 49 + 28w in the form a^2 + 2ab + b^2, where a = 2w and b = 7

(2w)^2 + 2(2w)(7) + 7^2 = 0

Use the Square of Sum: (a + b)^2 = a^2 + 2ab + b^2

(2w + 7)^2 = 0

Take the square root of both sides

3w + 7 = 0

Subtract 7 from both sides

2w = -7

Divide both sides by 2

<u>w = -7/2</u>

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Lemur [1.5K]

basic stuff


1.remove parentheses by multiplying factors.

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4.combine the constants

3 0
3 years ago
8(4 + 3p)
natulia [17]
The correct answer is D. 32 + 24p.

Distribution of 8 in 8(4+3p) is,

8 × 4 = 32

8 × 3p = 24p

----------------------------------------------------------

I hope that helps you out!!

Any more questions, please just ask me!!

~ Zoey
3 0
3 years ago
15/20 times 1/4 thank me if u like brainly
MaRussiya [10]

Answer: 3/16

Step-by-step explanation: To multiply fractions, first multiply across the numerators and then multiply across the denominators.

\frac{15}{20} × \frac{1}{4} = ?

15 × 1 = 15

20 × 4 = 80

\frac{15}{20} can be reduced by dividing both the numerator and denominator by the Greatest Common Factor which is 5.

15 ÷ 5 = 3

80 ÷ 5 = 16

Therefore, \frac{15}{20} × \frac{1}{4} = \frac{3}{16}

3 0
4 years ago
What is the solution to the equation 3(2x + 5) = 3x+4x?
UNO [17]
X= 15 for sure that is the answers
8 0
3 years ago
Four students do not come to school one day. This is of 1/6 the total number of students in the class. How many total students a
Dafna1 [17]

Answer:

There are 24 students in the class.

Step-by-step explanation:

If four students are 1/6 of the class, you need to multiply 4 times 6 to get 24.

5 0
3 years ago
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