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Damm [24]
3 years ago
12

Can anyone help me please?!

Mathematics
1 answer:
AlladinOne [14]3 years ago
4 0
I think number 4 is A. Number 5 is C. and I don't know how to solve the last one but I said I think those are the answers. Don't get mad at me if they aren't right ....
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Rewrite the equation 4x + 5x2 = 8x – 7 in standard form and
Makovka662 [10]

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 ....

4 0
3 years ago
Rhombus LMNO is shown with its diagonals. The length of LN is 28 centimeters. What is the length of LP? 7 cm 9 cm 14 cm 21 cm
vampirchik [111]
LP= 1/2 * 28 = 14 Answer C.
7 0
4 years ago
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Is 3.4 a rational or irrational number? Please explain why, thanks.
Nady [450]
Rational, 3.4 can be written as a fraction and is noncontinuous
"An irrational number <span>can be written as a decimal, but not as a fraction. An </span>irrational number<span> has endless non-repeating digits to the right of the decimal point."</span>
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Plzzzzzzz help pppppppp
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Answer:

c

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Step-by-step explanation:

i hope this helps

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3 years ago
What is 7 40/81 rounded to the nearest whole number
polet [3.4K]
If you divide, you get 9.135......
Therefore, you look at the digit after the decimal point that is 1 so it will be 9 since it's less than 5
So the answer is 9
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3 years ago
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