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3 years ago

Factor. 4x2 + 10x

Mathematics

2 answers:

Bond [772]3 years ago

8 0

2(4+5x) is the right answer

Taya2010 [7]3 years ago

6 0

Answer:

The correct option is A) 2x(2x + 5).

Step-by-step explanation:

Consider the provided expression.

$4x^2+10x$

The above expression can be written as:

$2 \times 2 x^2+2 \times 5x$

Now take 2 common from the above expression.

$2(2x^2+5x)$

The above expression can be written as:

$2(2x\times x+5x)$

Now take x common from the above expression.

$2x(2x+5)$

Compare the obtained result with the provided options.

By comparing it can be concluded that the correct option is A) 2x(2x + 5).

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Solve the equation by Completing the Square<br> x2 – 10x + 13 = 0

user100 [1]

Answer:

$x=5+\sqrt{12}$

$x=5-\sqrt{12}$

Step-by-step explanation:

$x^2-10x+13=0$

$x^2-10x=-13$

$x^2-10x+(\frac{10}{2})^2 =-13+(\frac{10}{2})^2$

$x^2-10x+(5)^2=-13+(5)^2$

$x^2-10x+25=-13+25\\x^2-10x+25=12$

Factor.

$(x-5)^2=12$

Extract the square root.

$x-5=\frac{+}{} \sqrt{12}$

Add 5

$x=5+\sqrt{12}$

$x=5-\sqrt{12}$

4 0

3 years ago

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d1i1m1o1n [39]

Answer: 0.85714285714

Step-by-step explanation:

I just googled it so yeah

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3 years ago

Use the compound interest formula A =P(1 + r) t and the given information to solve for r.

Dmitry [639]

Answer:

Rounding to nearest hundredths gives us r=0.06.

So r is about 6%.

Step-by-step explanation:

So we are given:

$A=P(1+r)^t$

where

$A=2300$

$P=1600$

$t=6$ .

$A=P(1+r)^t$

$2300=1600(1+r)^6$

Divide both sides by 1600:

$\frac{2300}{1600}=(1+r)^6$

Simplify:

$\frac{23}{16}=(1+r)^6$

Take the 6th root of both sides:

$\sqrt[6]{\frac{23}{16}}=1+r$

Subtract 1 on both sides:

$\sqrt[6]{\frac{23}{16}}-1=r$

So the exact solution is $r=\sqrt[6]{\frac{23}{16}}-1$

Most likely we are asked to round to a certain place value.

I'm going to put my value for r into my calculator.

r=0.062350864

Rounding to nearest hundredths gives us r=0.06.

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3 years ago

In a drama classroom, 75% of the students are chosen to perform a play. Of those choosen, 15% have singing roles. What is the pr

Nikolay [14]

Answer:

1/5 or 0.2

Step-by-step explanation:

probability=No of students with singing roles/No of people in the play
15/75=1/5 or 0.2

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3 years ago

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andrey2020 [161]

Answer:

220

Step-by-step explanation:

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2 years ago

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