All categories

3 years ago

Simplify the expression. 0.9 - 2(3r + 0.2)

Mathematics

2 answers:

kenny6666 [7]3 years ago

8 0

The simplified expression is 0.5-6r

I am Lyosha [343]3 years ago

3 0

Answer:

-6r + .5

reeeeeeeeeeeeeeeeerrrrreeeeeeeeeeeere

You might be interested in

H=7+44t-16^2

djyliett [7]

Answer:

$t_1\approx2.18$

$t_2\approx0.57$

Step-by-step explanation:

$h=7+44t-16t^2$

$27=7+44t-16t^2$

$0=-20+44t-16t^2$

$0=-16t^2+44t-20$

$t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$t=\frac{-44\pm\sqrt{44^2-4(-16)(-20)}}{2(-16)}$

$t=\frac{-44\pm\sqrt{1936-1280}}{-32}$

$t=\frac{-44\pm\sqrt{656}}{-32}$

$t=\frac{-44\pm4\sqrt{41}}{-32}$

$t=\frac{11}{8}\pm\frac{\sqrt{41}}{8}$

$t_1\approx2.18$

$t_2\approx0.57$

5 0

2 years ago

Jesse recorded the temperatures at which two oils freeze: Oil Temperature Sesame oil −6.2 °C Peanut oil 3.1 °C Which statement a

olga nikolaevna [1]

Answer:

Step-by-step explanation:

Where are the statements?

8 0

3 years ago

Read 2 more answers

What are the 27 factors?

Hoochie [10]

Answer:

factors of 27?

1 and 27, -1 and -27, 3 and 9, -3 and -9,

4 0

3 years ago

PLEASE HELP ASAP<br><br> Factor Completely <br> y^2+10y

Mariulka [41]

Answer:

A y(y+10)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Compute the critical value z Subscript alpha divided by 2 that corresponds to a 86% level of confidence.

tester [92]

Answer:

z = 1.476

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.86}{2} = 0.07$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.07 = 0.93$ , so $z = 1.476$

The answer is z = 1.476

7 0

3 years ago