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Alik [6]
3 years ago
10

Which quadratic function in standard form has the values a = –3.5, b = 2.7, and c = –8.2? f(x) = 2.7x2 – 8.2x – 3.5 f(x) = 2.7x2

– 3.5x – 8.2 f(x) = –3.5x2 – 8.2x + 2.7 f(x ) = –3.5x2 + 2.7x – 8.2
Mathematics
1 answer:
olga nikolaevna [1]3 years ago
5 0

Put the given values of a, b, c in the standard form

f(x)=ax^{2}+bx+c

It only matches the last selection ...

... f(x ) = –3.5x² + 2.7x – 8.2

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Which are solutions of the equation 4x2 – 7x = 3x + 24? Check all that apply.
SCORPION-xisa [38]

Answer:

{-3/2, 4}

Step-by-step explanation:

Use synthetic division here.  If the remainder is 0, then the divisor is a root or solution.

Here we have x = -4.  Perform the synthetic division as follows:

-4       4     -10    -24

                 -16     108

------------------------------

          4      -26     84              The remainder is 84, which tells us -4 is NOT

                                                a root/solution.

Try -3/2 as divisor this time:

-3/2    4     -10    -24

                   -6    24

------------------------------

          4      -16       0            Remainder is 0, so -3/2 is a solution

Show in the same manner that 4 is a solution also.  Or determine whether x - 4 satisfies 4x - 16 = 0 (it does).

8 0
4 years ago
Read 2 more answers
If a price tag of 175.00 is 20% off how much is it
cluponka [151]

Answer:

35 dollars off

Step-by-step explanation:

multiply 175 by .2

8 0
3 years ago
Carl is twice as old as Ginger. If Carl were 2 years younger and Ginger were 3 years older, the difference of their ages would b
Mashcka [7]
Ginger would be 8 years old.
8+3=11
16-2=14
16/2=8
3 0
3 years ago
The following proof shows an equivalent system of equations created from another system of equations. Fill in the missing reason
aev [14]

Answer:

Equation 2 of system  divided by 2 on both sides then we get second equation of system 2.

Step-by-step explanation:

We are given two equations

2x+2y=14

-4x+6y=12

We are given a proof which shows an equivalent system of equations created from another system of equations

We have to fill the correct reason in the blank space

Statement:2x=2y=14

-4x+6y=12

Reason: Given

Statement :2x=2y=14

-2x+3y=6

Reason : equation 2 of system I divided by 2 on both sides then we get second equation of system 2.

When we divide by 2 then the solution does not change and x and y - intercepts are not change.So, the two systems are equivalent.

3 0
3 years ago
6/7 divided by 2 <br><br> IN FRACTION<br><br> EXPLAIN HOW U GOT
gladu [14]

Answer:

3/7

Step-by-step explanation:

First, when dividing 6/7 by 2 you need to change the number 2 into a fraction. The number 2 as a fraction is 2/1. However, this is division so you need to reverse the fraction so it is 1/2 instead of 2/1. So, 6/7 x 1/2 = 6/14. You can simplify to get your the answer.

Hope this helped!

4 0
3 years ago
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