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schepotkina [342]
3 years ago
7

PLEASE PLEASE PLEASE HELP MEEE!

Mathematics
2 answers:
Lina20 [59]3 years ago
8 0
1) 2
2) 14
3) 56
Explanation: Plug-in x values and then do simply multiplication and subtraction.
atroni [7]3 years ago
4 0

Answer:

1: 2

3: 14

10: 56

Step-by-step explanation:

Just a simple equation.

You might be interested in
What is the solution to the inequality below? w+4≤ -1
maxonik [38]

Answer:

w≤ -5

Step-by-step explanation:

hello :

w+4≤ -1

w+4-4≤ -1-7

w≤ -5

3 0
2 years ago
Please help! Thanks in advance.
alukav5142 [94]
In this problem, we need to plug in the given x values for f(x)=0 and find a and b.

When we plug in 1, we get: 2 \times {1}^{4} - 5 \times {1}^{3} - 14 \times {1}^{2} + a \times 1 + b = 0

Simplify:
2 - 5 - 14 + a + b = 0
- 17 + a + b = 0
a + b = 17

We got our first statement about the values of the variables. If we find one more we can find those 2 variables.

We have another given root: 4.

Plug it in:
2 \times {4}^{4} - 5 \times {4}^{3} - 14 \times {4}^{2} + a \times 4 + b = 0
512 - 320 - 224 + 4a + b = 0
- 32 + 4a + b = 0
4a + b = 32

Now we have our second one. We can combine them:
a + b = 17 \\ 4a + b = 32

I use elimination method which is easier here.

Multiply the top equation by -1: - a - b = - 17 \\ 4a + b = 32

Add them up:
3a = 15

Simplify:
a = 5

Now we have a, we can plug in one of those equations to find b:
5 + b = 17
b = 17 - 5
b = 12

So, the answers are a=5 and b=12 .
6 0
3 years ago
What is 3/4 plus 1 1/4?
bezimeni [28]

Answer:

14/4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Jeremy bought postcards on a trip. He
noname [10]

Answer:

T = total #

T = 5 (to the aunt) + 1/2 (T - 5) (to his friends) + 1 (to his sister) + 4 (left)

T = 5 + 1/2 (T - 5) + 1 + 4

T = 10 + 1/2 (T - 5)

2T = 20 + (T - 5)

2T = 20 + T - 5

2T = 15 + T

T = 15

Step-by-step explanation:

5 0
3 years ago
Do you know the answer to this question
kozerog [31]
The correct answer is:  [C]:  "  f(x) = log₃ (x - 3) " .
_______________________________________________________
3 0
3 years ago
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