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2 years ago

10. Find the area of the SHADED triangle.*

Mathematics

1 answer:

Gwar [14]2 years ago

7 0

Answer:

120 square in

Step-by-step explanation:

The formula for area of a triangle is:

base × height ÷ 2

Plugging your triangle in to the formula, we have:

12 × 20 ÷ 2 = 120

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What is the average acceleration of a southbound train that slows down from 15 m/s to 8.6 m/s in 1.2 s?

horrorfan [7]

Answer:

The average acceleration of train is $5.34\ m/s^2$

Step-by-step explanation:

We have,

A train that slows down from 15 m/s to 8.6 m/s in 1.2 s. It means that 15 m/s is its initial velocity and 8.6 m/s is its final velocity.

It is required to find the average acceleration of the train.

$a=\dfrac{v-u}{t}\\\\a=\dfrac{(8.6-15)\ m/s}{1.2\ s}\\\\a=-5.34\ m/s^2$

The average acceleration of train is $5.34\ m/s^2$ . Negative signs shows that the train is decelerating.

5 0

3 years ago

What is 9/12 in simplest form

olga nikolaevna [1]

Solutions

⇒9/12

1) To see if 9/12 is in simplest form you have to find 9 and 12's GCF.
The GCF of 9 and 12 is 3

2) Divide by the GCF
9 ÷ 3 = 3
12 ÷ 3= 4

3/4 is answer

6 0

2 years ago

Read 2 more answers

If Jenny can read 7 books in 8 days, exactly how many days would it take her to read 20 books?

muminat

Answer:

Step-by-step explanation:

Given,

No. of days taken by Jenny to read 7 books

= 8

So,

No. of days taken by her to read 1 book

$= \frac{8}{7}$

Therefore,

No. of days taken by her to read 20 books

$= \frac{8}{7} × 20$

[On Simplification]

$= \frac{160}{7}$

[On dividing]

= 22.85.....

[On approximating]

= 23 days (approx. )

Hence,

Jenny will take 23 days to read 20 books (Ans)

3 0

2 years ago

Read 2 more answers

HELP ASAP WILL GIVE 100 POINTS. Solve for x. 89(54x−36)+2=−34(−40+16x)+90x

PolarNik [594]

Solution:

Simplify the equation and solve.

89(54x − 36) + 2 = −34(−40 + 16x) + 90x
=> 4806x − 3204 + 2 = 1360 - 544x + 90x
=> 4806x = 1360 - 454x + 3202
=> 5260x = 4562
=> x = 4562/5260 = 2281/2630

The solution to the problem is 2281/2630.

3 0

2 years ago

PLEASE HELP! When x = 1 — 2 , 3x 2 =

Katyanochek1 [597]

Plug in the x value.

3(1-2)2=?
1-2= -1
3(-1)= -3
-3(2)= -6.

The answer is -6.

4 0

3 years ago