3 years ago

− 0.25(−8+12) PLS HELP I HAVE A TESTTTT

Mathematics

1 answer:

Semmy [17]3 years ago

3 0

Answer: -1

Step-by-step explanation:

− 0.25(−8+12) = -0.25 x 4 =-1

You might be interested in

4.1.3 How many solutions are there ? <br> Worksheet

Neporo4naja [7]

Answer:

43?

Step-by-step explanation:

lol what?

5 0

3 years ago

Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

hammer [34]

Answer: The raw score for Daniel's exam grade is 101.69.

Step-by-step explanation:

For x be any random variable.

Formula for z-score :

$z=\dfrac{x-\mu}{\sigma}$ , where $\mu$ = population mean

$\sigma$ = population standard deviation.

Let x be the raw score for Daniel's exam grade.

As per given , we have

$\mu=90$ , $\sigma=7$ and z= 1.67 , put these values in the above formula , we get

$1.67=\dfrac{x-90}{7}\\\\\Rightarrow\ x-90=7(1.67)=11.69\\\\\Righarrow\ x=11.69+90=101.69$

Hence, the raw score for Daniel's exam grade is 101.69.

8 0

3 years ago

Which compound inequality best describes the following?

bija089 [108]

Answer:

I think it might be A: 75< x<84

Step-by-step explanation:

but i am not sure

8 0

4 years ago

Y = 1.5x + 1<br> y = -0.25x - 6

solmaris [256]

Answer:

x=−2.181818

Step-by-step explanation:

7 0

3 years ago

Why isn't D the answer? Isn't it also positive and concave up?

ArbitrLikvidat [17]

Step-by-step explanation:

At d, f'(x) is increasing (concave up), but it is not positive. The tangent line at that point has a negative slope.

7 0

4 years ago