What is the take from ten strategy

1 answer:

5 0

It is like when you have the problem 15*6, you don't know how to do that mentally, unless you use the take ten strategy which would turn it into (10*6) + (5*6) so, it simplifies to (60) + (30) which is 90

You might be interested in

What is the length of line RS? Use the law of sines to find the answer.Round to the nearest tenth.

vitfil [10]

Refer to the diagram below.

Let x = length of line segment RS.
Let Q = ∠RQS.
Let S = ∠RSQ

According to the Law of Sines,
$\frac{sinS}{2.4} = \frac{sin80^{o}}{3.1} \\\\sinS = (\frac{2.4}{3.1}) sin 80^{o}= 0.7624 \\\\ S = sin^{-1}0.7624 = 49.68^{o}$

Because the sum of angles in a triangle is 180°, therefore
∠Q = 180 -(80 + 49.68) = 50.32°

Apply the Law of Sines again to obtain
$\frac{x}{sinQ} = \frac{3.1}{sin80^{o}} \\\\ x = ( \frac{sin50.32^{o}}{sin80^{o}})3.1 = 2.423$

Answer: The length of RS = 2.4 (nearest tenth)

5 0

3 years ago

Read 2 more answers

Don't add links please.

Ira Lisetskai [31]

Answer:

Step-by-step explanation:

Man I hate math

8 0

3 years ago

Read 2 more answers

I need help understanding this

telo118 [61]

Well, the slope for each side is simple.

All you have to do to remember slope is rise over run.

So for example:
For Vertices E and F the Slope would be 3/9
For Vertices G to H the slope would be 3/9
For vertices G to F the slope would be 6/2
For vertices H to E the slope would be 6/2

What do you notice about slopes on opposite sides?
Answer:
( H to E,and G to F) Have the same slope
(And G to H and E to F.) Have the same slope.

What do you notice about slopes of adjacent lines?
adjacent means adjoining or next to. So can you figure this question out? Using the information above?

5 0

3 years ago

Read 2 more answers

Approximate: log , 5

Georgia [21]

0.69897000…

im not sure what your supposed to round to, but thats the answer i got.

3 0

3 years ago

Typing paper measures 8 1/2 inches wide and 11 inches long find the perimeter of the typing paper

exis [7]

P=2l+2w ---> P=2(11)+2(8.5)     -- Substitute
P=2(11)+2(8.5) ---> P=22+17     -- Multiply
P=22+17 ---> P=39 inches     -- Add

6 0

3 years ago