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Soloha48 [4]
3 years ago
10

Rewrite the equation 4x + 5x2 = 8x – 7 in standard form and

Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0

Answer:

The correct option is a=5, b = -4, c=7 ....

Step-by-step explanation:

The standard form is ax²+bx+c=0

where a, b, and c being constants, or numerical coefficients, and x is an unknown variable.

The given expression is:

4x + 5x2 = 8x – 7

To make it a standard equation we will move all the values to the left hand side and 0 will be left at the right hand side.

4x+5x²-8x+7=0

Now solve the like terms and arrange the equation according to the standard form:

ax²+bx+c=0

5x² - 4x +7 =0

Here a = 5

b = -4

c= 7

Thus the correct option is a=5, b = -4, c=7 ....

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Answer:

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Step-by-step explanation:

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2 years ago
(6e−3f−4)⋅2=<br> otay otay
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Step-by-step explanation:

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8 0
3 years ago
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Given the numbers 36 60 and 72 write the numbers as a product of their prime factors​
PSYCHO15rus [73]

Answer:

36:2 times 2 times 3 times 3.

60:2 times 2 times 3 times 5

72:2 times 2 times 2 times 3 times 3

Step-by-step explanation:

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hope this helps

6 0
3 years ago
Janet has three coins.
tatyana61 [14]

Answer:

Janet has coins worth 252.5, 101, and 50.5.

Step-by-step explanation:

Let us call the three coins a,b, and c.

The first coin a is 5 times another coin<em> (let's say </em>b); therefore,

a = 5b,

and the third coin is 2 times the value of another coin<em> (it's coin </em>b<em>):</em>

<em />c =2b<em>.</em>

The total worth of all coins is 404; therefore,

a+b+c =404

or

5b+b+2b =404

8b =404

\boxed{b = 50.5}

with the value of b in hand, we find a and c:

a = 5b = 5(50.5)

\boxed{a = 252.5}

and for c:

c = 2 b = 2 (50.5)

\boxed{c = 101}

Thus, Janet has 3 coins worth 252.5, 101, and 50.5.

8 0
4 years ago
Mia is factoring the polynomial x2 + 4x – 12. She uses the steps shown.
Anuta_ua [19.1K]

Answer:

Step 4

Step-by-step explanation:

She got rid of the x and 2 for no reason.

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3 years ago
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