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Rainbow [258]
3 years ago
10

Which of the binomials below is a factor of this trinomial? 4x2 + 21x + 5

Mathematics
1 answer:
guapka [62]3 years ago
8 0

Answer:

B.  4x + 1

Step-by-step explanation:

4x^2 + 21x + 5

= (4x + 1)(x + 5)

Factors of this trinomial are (4x + 1) and (x + 5)

Answer

(4x + 1)

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Answer:

y=2x+6

Step-by-step explanation:

Graph the coordinates

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put in y=mx+b

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3 years ago
Solve the following equation for x: 5x + 3y = 15.
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Answer:

x = negative three fifthsy + 3

Step-by-step explanation:

5x + 3y = 15

Subtract 3y from both the sides,

5x = 15 - 3y

Divide by 5 on both sides,

x = -3y/5 + 15/5

x = -3y/5 + 3

7 0
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Persevere Write the difference in factored form. (24x4 − 15x2 + 6x) − (10x4 + 5x2 − 4x)
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4 0
3 years ago
Solve (2 - x)^2 < 4/25
Semenov [28]

Answer:

8/5 < x< 12/5

Step-by-step explanation:

(2 - x)^2 < 4/25

Take the square root of each side

sqrt((2 - x)^2)  <±sqrt( 4/25)

Make two equations

2-x < 2/5    2-x > -2/5

Subtract 2 from each side

2-x-2 < 2/5 -2          2-x-2  > -2/5-2

-x < 2/5 -  10/5             -x > -2/5  - 10/5

-x < -8/5                         -x > -12/5

Multiply by -1, remembering to flip the inequality

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5 0
3 years ago
Read 2 more answers
The drama club is selling T-shirts and caps to raise money for a spring trip. The caps sell for $5.00 each, and the T-shirts sel
Zinaida [17]

The required inequality is 5x+10y\geq 500

<em><u>Solution:</u></em>

Given that,

Cost of 1 cap = $ 5

Cost of 1 t-shirt = $ 10

Let "x" be the number of caps sold

Let "y" be the number of t-shirts sold

The drama club needs to raise at least $500.00 for the trip

Based on this information, we can frame a inequality as:

number of caps sold x cost of 1 cap + number of shirts sold x cost of 1 shirt \geq 500

Which means,

x \times 5 + y \times 10\geq 500\\\\5x + 10y\geq 500

Here we used "greater than or equal to" symbol , because club needs to raise at least $ 500

They can raise 500 or more than $ 500 also

Thus the required inequality is 5x+10y\geq 500

8 0
3 years ago
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