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svlad2 [7]
4 years ago
15

MANY PTS AND BRAINLY FAST

Mathematics
2 answers:
Troyanec [42]4 years ago
5 0

Answer:

Option C

Step-by-step explanation:

we have

-6x^{2} -6x+12=0

step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

-6x^{2} -6x=-12

step 2

Factor -6 leading coefficient'

-6(x^{2} +x)=-12

step 3

Complete the square

Remember to balance the equation by adding the same constants to each side

-6(x^{2} +x+0.25)=-12-1.5

-6(x^{2} +x+0.25)=-13.5

step 4

Rewrite as perfect squares

-6(x+0.5)^{2}=-13.5

simplify

(x+0.5)^{2}=2.25

IgorC [24]4 years ago
3 0

Answer:A

Step-by-step explanation:

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A box of chocolates was shared evenly between 5 people. Each person received 4 chocolates.
posledela

Answer:

20

Step-by-step explanation:

5x4=20

plz give me a thx! IF I HELPED :)

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3 years ago
For each of the following, decide if the given series is a geometric series. A. 5+25x+125x2+625x3+3125x4+⋯ : Is this a geometric
Westkost [7]

Answer:

A. Yes.

B. Yes.

C. No.

Step-by-step explanation:

A. Yes. The sum of the series, 5 + 25x + 125x^{2} + 625x^{3} + 3125x^{4} + ........... is the sum of a geometric series.

The first term of the series a_n = 5.

The common ration or the ratio between successive terms (r) = \frac{25x}{5} = 5x (Answer)

B. Yes. The sum of the series, 5x^{7} + 5x^{8} + 5x^{9} + 5x^{10} + ............ is also the sum of a geometric series.

The first term of the series a_n = 5x^{7}.

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C. No. The sum of the series, 5 + 5x + 5x^{2} + 5x^{4} + 5x^{8} + ........... is not the sum of a geometric series.

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5 0
3 years ago
Please answer thanks
MA_775_DIABLO [31]
7. 21.39
8. 6
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3 years ago
Simplify.<br> √20 <br> v<br> Assume that the variable represents a positive real number.
True [87]

Answer:

2\sqrt{5v}

Step-by-step explanation:

We can treat 20v as a regular number and not a term.

To simplify this square root, we need to break it down into parts which can be squared.

\sqrt{20v} = \sqrt{4\cdot5v}

Square root of 4 is 2, so that goes outside the radical.

2\sqrt{5v}.

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3 0
3 years ago
Read 2 more answers
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romanna [79]

Answer: 11.7

Step-by-step explanation: 90*0.13=11.7

Multiply the main number by the percentage, to find the answer.

1% is 0.01

10% is 0.1

4 0
3 years ago
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