3 years ago

How is using mental math to add with decimals like using mental math to add whole numbers

1 answer:

8 0

Add them up just the same, then add the decimal point in the proper position; once you hit the hundreds position, it is a whole number. I.E. 300=.3

You might be interested in

Can u help me thanks u

vovikov84 [41]

1 1/2=
1.5

1.5 * 3 =

4.5

7 0

3 years ago

Find the height of the prism if the length is 9 inches, the width is 5 inches, and the volume of the prism is 315 cubic inches.

trasher [3.6K]

Answer:

Height of prism = 7 inches

Step-by-step explanation:

Let h be the height of prism.

Hence,

$h = \frac{vol \: of \: prism}{l \times w} \\ \\ = \frac{315}{9 \times 5} \\ \\ = \frac{315}{45} \\ \\ h= 7 \: inches$

5 0

3 years ago

write and equation of the line that passes through the given point and is parallel to the given line.1. (4,7), y = 5x-3

Gennadij [26K]

Answer:

y=5x+7

Step-by-step explanation:

parallel lines have the same slope, but different y intercepts

y=5x+7

5 0

3 years ago

Y = 5x^2 - 10 what is the rate of change ? is the function linear or non linear ? why ?

Svetlanka [38]

Answer:

Step-by-step explanation:

Are you in Calculus? These are calculus concepts!

To calculate the rate of change here you must specify an interval, e. g., "what is the rate of change on the interval (0, 3)?"

If you know calculus: The 'rate of change' on the interval (a, b) is

f(b) - f(a)

r. of c. = --------------------

b - a

Have you used this formula before?

Because of the 'x^2' term this is NOT a linear function.

If you want more explanation, provide an interval on which you want the average rate of change and ask specific questions of your own.

6 0

3 years ago

What is the measure of ∠HFG? (See attachment)

madam [21]

92 degrees

Triangle= 180 degrees
180-60-28= 92

:)

7 0

3 years ago