3 years ago

Help due today ! please! simplify & show work

Mathematics

1 answer:

Sedbober [7]3 years ago

4 0

The Answer is:

3x^2-2x-8

You might be interested in

Can someone plsss help?

Anni [7]

Answer:

D. $X/Y$

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Find the domain of f(x)=x-9/x squared-81

vagabundo [1.1K]

$f(x)=\dfrac{x-9}{x^2-81}\\\\\text{The domain:}\\\\x^2-81\neq0\qquad\text{add 81 to both sides}\\\\x^2\neq81\to x\neq\pm\sqrt{81}\\\\x\neq-9\ \wedge\ x\neq9\\\\Answer:\ \boxed{\text{All real numbers except -9 and 9}}\to\boxed{x\in\mathbb{R}-\{-9,\ 9\}}$

7 0

3 years ago

Tammy, Kelley, and Jim love reading books. Tammy read 7.75 hours last month. Kelley read 7.69 hours. Jim read 7.075 hours. Who s

kramer

Answer:

Tammy

Step-by-step explanation:

Tammy read 7.75 hours last month. Kelley read 7.69 hours

Jim read 7.075 hours.

We would arrange the hours of reading from smallest to the highest

7.075, 7.69, 7.75

The person who spent the most time reading is the person with the highest number of hours that was spent reading. This person is Tammy.

Therefore, person who spent the most time reading is Tammy because she read for 7.75 hours.

5 0

3 years ago

Find the circumfrance and the area of a circle with a 5 ft radius. Use the value 3.14

Crazy boy [7]

Answer:

Circumference is 2piR =31.4

Area is pir^2=78.5

Step-by-step explanation:

6 0

2 years ago

To find 8 ×17, I double and halve

anastassius [24]

Answer:

what is the question?

Step-by-step explanation:

6 0

2 years ago