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3 years ago

75 percent of 104 is the same as 80 percent of what number?

1 answer:

8 0

104*.75=78
78/8=9.75(divide by 8 because 80%/8=10%)
9.75*10=97.5
97.5*.8=78

75% of 104 is 78 which is also 80% of 97.5

Your answer is 97.5

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How many times does the graph of 4x = 32 - x2 cross the x-axis?<br><br> 0<br><br> 1<br><br> 2

Yakvenalex [24]

Answer:

Step-by-step explanation:

4x = 32 - x2 would be much clearer if written as 4x = 32 - x^2. Please use

" ^ " to indicate exponentiation.

Rewrite 4x = 32 - x^2 in the standard form of a quadratic: x^2 + 4x - 32

Then the coefficients are a = 1, b = 4 and c = -32.

Find the discriminant. It is b^2-4ac.

Here, b^2-4ac = 4^2 - 4(1)(-32), or 16 + 128, or 144.

Because the discriminant is positive, we know immediately that this quadratic has two real, unequal roots.

So, the answer to this question is "the graph of 4x = 32 - x^2 cross the x-axis in two places."

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3 years ago

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ABC is a right triangle. if AC =4 and BC=10,find AB leave the answer in simplest radical form

Ganezh [65]

AB = sqrt(10^2 - 4^2) = sqrt(100 - 16) = sqrt(84) = sqrt(4 x 21) = 2sqrt(21) = 2 radical 21.

8 0

3 years ago

Ace gained $ 176 by selling 32 meters cloth for $1496. Find his loss per meters she sold it for $1276

nasty-shy [4]

Answer:xcvxvxcvxcvxcvc

Step-by-step explanation:

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5 0

3 years ago

What is the simplified polynomial and the value

Elanso [62]

The simplified polynomial is; xy(x²y - xy² +1) and; the value when x=-3 and y=2 is; -186

From the polynomial given;

x²yxy -xy²xy +xy.

The polynomial can be factorised to yield a simpler form as follows;

xy(x²y - xy² +1).

This is so because, xy is a common factor.

The value is therefore;

(-3×2)((-3)²2 - (-3×2²) +1)

-6(18+12+1)

= -186

Read more on polynomials;

brainly.com/question/2833285

7 0

3 years ago

20) Which of the following is in ascending order?

Lelechka [254]

<h3><u>Answer:- </u></h3>

$\longrightarrow \sf h) \:\:\dfrac{2}{3},0.67,70\%,0.8$

<h3><u>Solution:-</u></h3>

Let us first write all the provided number in decimal

$\quad\leadsto\sf \dfrac{2}{3}= 0.\bar{66}$

$\quad\leadsto\sf 70 \% = \dfrac{70}{100}$

$\quad\quad\quad\implies\sf 0.7$

$\quad\leadsto 0.67$

$\quad\leadsto 0.8$

<u>Comparing all the numbers </u><u>now </u><u>-</u>

$\longrightarrow \sf 0.\bar{66}$

$\longrightarrow\sf \dfrac{2}{3}$

6 0

2 years ago