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2 years ago

I need help with this one .

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

3 0

Answer:

32/9

Step-by-step explanation:

2 to the fifth power is 32. 3 to the second power is 9.

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What’s the measure of

Wewaii [24]

Answer:

which angle ??

if it is DEC Then it will be 75°

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2 years ago

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Vhat is the value of x in the equation 3x - 2y = 18, when y= 27?

PilotLPTM [1.2K]

Answer:

x = 24

Step-by-step explanation:

3x - 2y = 18

y = 27

3x - 2(27) = 18

3x - 54 = 18

3x = 72

x = 24

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1 year ago

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Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 95 people

Marrrta [24]

Answer:

Step-by-step explanation:

here you go

8 0

2 years ago

3x^2+6x-9=0 complete the square

PolarNik [594]

You could simplify this work by factoring "3" out of all four terms, as follows:

3(x^2 + 2x - 3) =3(0) = 0

Hold the 3 for later re-insertion. Focus on "completing the square" of x^2 + 2x - 3.

1. Take the coefficient (2) of x and halve it: 2 divided by 2 is 1
2. Square this result: 1^2 = 1
3. Add this result (1) to x^2 + 2x, holding the "-3" for later:
x^2 +2x
4 Subtract (1) from x^2 + 2x + 1: x^2 + 2x + 1 -3 -1 = 0,
or x^2 + 2x + 1 - 4 = 0
5. Simplify, remembering that x^2 + 2x + 1 is a perfect square:

(x+1)^2 - 4 = 0

We have "completed the square." We can stop here. or, we could solve for x: one way would be to factor the left side:

[(x+1)-2][(x+1)+2]=0 The solutions would then be:

x+1-2=0=> x-1=0, or x=1, and
x+1 +2 = 0 => x+3=0, or x=-3. (you were not asked to do this).

3 0

2 years ago

In the accompanying diagram of parallelogram ABCD, LaTeX: m\angle A=x+17 m ∠ A = x + 17 and LaTeX: m\angle C=2x-4 m ∠ C = 2 x −

jek_recluse [69]

Answer:
x = 21

Explanation:
In a parallelogram, each two opposite angles are equal.

In the given parallelogram ABCD, we can note that angles A and C are opposite angles. This means that they have equal measures.

Therefore:
∠A = ∠C
x + 17 = 2x - 4
17 + 4 = 2x - x
x = 21

We can check:
angle A = 21 + 17 = 38°
angle C = 2(21) - 4 = 38°
They are equal

Hope this helps :)

3 0

2 years ago