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alexandr402 [8]

3 years ago

12

In 1924 the temperature in Fairfield Montana dropped from 63 degrees to -21 degrees in 12 hours. What was the average hourly cha

nge in temperature

1 answer:

maxonik [38]3 years ago

6 0

If you add 63 and 21 you get 84. Next you would do 84 divided by 12 which would equal 7

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Add or subtract as indicated and write the result in standard form 3i+(-6-i)

yKpoI14uk [10]

Answer:

B: -6+2i

Step-by-step explanation:

3i + (-6 - i) = ⇒ open parenthesis
3i - 6 - i = ⇒ simplify
-6 + 2i ⇒ answer in standard form of a+bi

5 0

3 years ago

Simplify the following polynomial:<br> (3ax +2a - 3a²x) + (3a²x - 5ax - a) + 8a

Nataly_w [17]

8ax+9a is the answer

3 0

3 years ago

Planes A and B intersect. Vertical plane B intersects horizontal plane A. Point W is on the line where the planes intersect. Ver

trasher [3.6K]

Answer:

Step-by-step explanation:

i need help 2

5 0

3 years ago

Read 2 more answers

which equations are equivalent to 3/4+m=-7/4 check all that apply m=10/4 m=-10/4 m=-5/2 11/4+m=-1/4 -5/4+m=-15/4 m+2=-0.5 Help f

Alecsey [184]

Answer:

The correct choices are; B,C,E, and F.

Step-by-step explanation:

The given equation is;

$\frac{3}{4}+m=-\frac{7}{4}$

We solve for m to obtain:

$m=-\frac{7}{4}-\frac{3}{4}=-2.5$

We also solve the remaining equations to see which ones give the same result.

A: $m=\frac{10}{4} =2.5$

B: $m=-\frac{10}{4} =-2.5$

C: $m=-\frac{5}{2} =-2.5$

D: $\frac{11}{4}+m=-\frac{1}{4}$

$m=-\frac{1}{4}-\frac{11}{4}=-3$

E: $-\frac{5}{4}+m=-\frac{15}{4}$

$m=-\frac{15}{4}+\frac{5}{4}=-2.5$

F: $m+2=-0.5$

$m=-0.5-2=-2.5$

The equivalent equations are; B,C,E, and F.

3 0

3 years ago

Read 2 more answers

Give an example to show that subtraction does not follow the associative rule

Agata [3.3K]

(6 - 2) - 1 = 4 - 1 = 3

6 - (2 - 1) = 6 - 1 = 5

The associative rule doesn't work for subtraction because you get different results when you move the parentheses.

4 0

3 years ago