All categories

2 years ago

If x = -1 what is the value of y in the equation? y = 8x3 + 12x2 - 6x - 3

Mathematics

1 answer:

OLEGan [10]2 years ago

6 0

Answer:

y=7

Step-by-step explanation:

x = -1 x is one , replace x with negative one in the equation. using the order of operation PEMDAS.

Remember this -1³= -1×-1×-1=-1

-1²=-1×-1=1.

y =8x³+12x²-6x-3

y= 8(-1)³+12(-1)²-6(-1)-3

<h3>Exponents</h3>

y= 8(-1)+12(1)-6(-1)-3

<h3>Multiplication</h3>

y= -8+12+6-3

<h3>Addition</h3>

y= 10-3

<h3>Subtraction</h3>

y= 7

<h3>Therefore y= 7</h3>

You might be interested in

Solve 2x-4÷ 5 = 4<br>really need help fast

MrRa [10]

Answer:

x=12

Step-by-step explanation:

2x-4=20

2x=24

x=12

4 0

3 years ago

Read 2 more answers

Find the least number by which the following number must be multiplied so that the product are perfect cube one number 72 to num

stiks02 [169]

Answer:

Well this question is actually a piece of cake. Just pick your favorite number. Multiply it by 10. Then do whatever operation you want with the 2,300. For the exponent part of this. Lets say we do it this way y times z equals 2,300. Exponents are letters used in mathematical terms. So any letter can be used to represent any number.

Step-by-step explanation:

6 0

3 years ago

The yearly attendance at a local movie theater is 82,000 and grows continuously at a rate of 5.1% each year. What is the approxi

juin [17]

Answer:

c. 134,847

Step-by-step explanation:

82,000 x (1.051)^10 = 82,000 x 1.64447456 = 134,847

6 0

3 years ago

Please helpppp I need a answer asap

FinnZ [79.3K]

Answer:

280cm^2

Step-by-step explanation:

I am only looking for the shaded region which is 20 and 14 and 20*14=280

so my final answer will be 280cm^2

4 0

3 years ago

−2 1/6 divided by 1 1/4<br> 100 points

galina1969 [7]

Answer:

-1 11/15

Step-by-step explanation:

<u>−2 1/6 divided by 1 1/4:</u>

-2 1/6 ÷ 1 1/4 =
- 13/6 ÷ 5/4 =
- 13/6 × 4/5 =
- 26/15 =
-1 11/15

8 0

3 years ago

Read 2 more answers