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kupik [55]
3 years ago
15

Which one is right for this please

Mathematics
1 answer:
irga5000 [103]3 years ago
8 0

Answer:

C is correct

Step-by-step explanation:

To factor:

4x^2 + 12x + 5

(4x^2 + 2x)(10x + 5)

2x(2x + 1) + 5(2x + 1)

Then, take the outside numbers make them their own group:

2x + 5

(2x + 5)(2x + 1)

Therefore, it’s (2x + 1)(2x + 5)

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How to right a radical in exponential form
Law Incorporation [45]

Answer:

  \sqrt[n]{x}=x^{\frac{1}{n}}

Step-by-step explanation:

The index of a radical is the denominator of a fractional exponent, and vice versa. If you think about the rules of exponents, you know this must be so.

For example, consider the cube root:

\sqrt[3]{x}\cdot \sqrt[3]{x}\cdot \sqrt[3]{x}=(\sqrt[3]{x})^3=x\\\\(x^{\frac{1}{3}})^3=x^{\frac{3}{3}}=x^1=x

That is ...

\sqrt[3]{x}=x^{\frac{1}{3}} \quad\text{radical index = fraction denominator}

3 0
3 years ago
1/3 chose beef<br> 5/12 chose chicken <br> 69 chose vegetarian<br> how many people all together
Alenkasestr [34]
I’m just here to share positive

You got this!!
I believe in you:)
6 0
3 years ago
Please help with this question
alekssr [168]

Step-by-step explanation:

so, that means we want to find the time t (days) after which N = No/2

because "half-life" means the amount of time until half of the substance has disappeared (or transformed into something else).

so, we have

No/2 = No × e^(-0.1481×t)

No = 2× No × e^(-0.1481×t)

1 = 2×e^(‐0.1481×t)

1/2 = 0.5 = e^(-0.1481×t)

ln(0.5) = -0.1481×t

t = ln(0.5)/-0.1481 = 4.680264555... ≈ 4.7 days

8 0
1 year ago
9 1/2 X 5 3/10 what is it I need help for homework
Assoli18 [71]

9x5=45

1/2x3/10=3/20

=45 3/20


7 0
2 years ago
Read 2 more answers
Total consumption of fruit juice in a particular country in 2006 was about 1.86 billion
hram777 [196]

Answer:

Step-by-step explanation:

Kindly check explanation

Step-by-step explanation:

The population of that country in 2006 was 500 million. What was the average number of

gallons of fruit juice consumed per person in the country in 2006? Use pencil and paper. Using the per

person amount from this problem, about how many gallons would your class consume?

Total consumption in 2006 = 2.11 billion gallons (2,110,000,000)

Population of country in 2006 = 500,000,000

Average number of gallons of fruit juice consumed per person in the country in 2006:

Total consumption / total population

2,110,000,000 / 500,000,000

= 4.22 gallons per person

Number of gallons class will consume :

Assume number of students in class = 15

Hence, class consumption equals:

Average consumption per person × number of students in class :

4.22 × 15 = 63.3 gallons

3 0
2 years ago
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