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svp [43]
3 years ago
14

Use synthetic division to evaluate f(x)=-x^2-8x+30 for x=-1 . f(-1)=

Mathematics
1 answer:
Naddika [18.5K]3 years ago
3 0

Answer:

39

Step-by-step explanation:

(-1)²-8x(-1)+30

1+8+30

39

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6/7 divided by 3 =<br><br> Answer please (work it out or not idc)
kow [346]

Answer:

Step-by-step

2/7

4 0
3 years ago
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If two points on line l above have coordinates (0, A) and (2, −3), and the slope of the line is A, then what is the value of A?
Vlada [557]

Answer:

A = -1

So, option (B) is the correct answer.

Step-by-step explanation:

The two points on line have coordinates: p (x₁, y₁) = (0, A) and q(x₂, y₂) = (2 , -3)

Slope of line = A

Slope of line = \frac{y_{2} - y_{1}}{x_{2} -x_{1}}

Now since the slope of line is A  and its has two coordinates (0, A) and (2 , -3), ∴

A = \frac{y_{2} - y_{1}}{x_{2} -x_{1}}

A = \frac{-3 - A}{2 - 0}

2A = -3 - A

2A + A = -3

3A = -3

A = -1

So, option (B) is the correct answer.

6 0
3 years ago
Jae's homework consists of 16 math problems. She has finished 4 problems so far.
VMariaS [17]
Jae has finished 25% of her homework.

<span><span>4/16
</span></span><span><span>=<span>1/4
</span></span></span><span><span>=1÷4
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3 0
3 years ago
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Is (5x+4) a factor of (-21x^2-15-40x+5x^3
Tamiku [17]

Answer:

No. It is not.

Step-by-step explanation:

Dividing 5x³+21x²-40x-15 by 5x+4 gives x²+5x-4 with a remainder. Which means, 5x+4 is not a factor of 5x³+21x²-40x-15

6 0
3 years ago
Change this improper fraction into a mixed number: 89/9
enyata [817]
1) 11 1/8

2) 5/7

3)it would be 233/3 but since that isn't your option try going with 23/3

4) 10 / 16

5) 9/3 = 3 (aka 3/1 ) then 3/9 = 0.3.
Answer for number 5 ⬇
Therefore 9/3 would be your greatest
~the fractions doesn't equal each other~{meaning that the equal sign wouldn't be your answer} ~
~3/9 Would be lesser than 9/3~
~just make the fraction into division .it might help ~
~~~~~~~~~~~~~`~~~~~~~~~~~~~~~~~~~~~~~~~~~
For improper fraction just multiply and add
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Looking for the equivalent of the fractions... try dividing as well
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Example of a improper fraction

Problem : 12 3/5

Work: 12(5) = 60
60 +( 3 )= 63
Answer : 63/ 5
(note: don't worry about the example .... its not apart of the questions you asked.. but you can if you want to ... don't get me wrong.. if it was helpful you can use it )

☺
8 0
3 years ago
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