3 years ago

Question #7

Mathematics

1 answer:

hoa [83]3 years ago

6 0

Answer:

D. 126

Step-by-step explanation:

You might be interested in

Solve equation by completing the square 5n^2-3n-10=15

VARVARA [1.3K]

These are the two answers you could get

5 0

3 years ago

Abby packs plastic cubes in a box. Each cube is 1 square centimeter.

ira [324]

Answer:

2640 cubes

Step-by-step explanation:

20 cm x 12 cm x 11 cm = 2640 cm^3

5 0

3 years ago

5. Find cos theta if sin theta= -12/13<br> and tan theta > 0. (6 points)

ziro4ka [17]

$\text{Given that,}\\\\\sin \theta = -\dfrac{12}{13}\\\\\implies \sin^2 \theta = \dfrac{144}{169}\\\\\implies 1- \cos^2 \theta = \dfrac{144}{169}\\\\\implies \cos^2 \theta = 1- \dfrac{144}{169}\\\\\implies \cos^2 \theta = \dfrac{25}{169}\\\\\implies \cos \theta = \pm \sqrt{\dfrac{25}{169}} = \pm \dfrac 5{13}\\\\\\\text{Since,}~ \tan \theta >0,\\\\\cos \theta =- \dfrac{5}{13}$

8 0

2 years ago

I'm trying to rearange this equation so that t is the subject and i need help

gregori [183]

Work backwards.

s=ut+(at^2)/2

Subtract ut.

s-ut=(at^2)/2

Multiply by 2.

2(s-ut)=at^2

Divide by a.

2(s-ut)/a=t^2

Find the square root:

$\sqrt{2(s-ut)/a}=t$

6 0

4 years ago

One kitten weighs 2 lbs 4 oz. Another kitten weighs 2 oz less. What is the combined weight of the two kittens in oz?

EastWind [94]

Answer:

70 oz

Step-by-step explanation:

You know that one kitten weighs 2 lbs 4 oz. and the other ways 2 lbs 2 oz all you need to do is add that together to get 4 lbs 6 oz then convert that into lbs (1 lbs = 16 oz)

In total the 4 lbs gets you 64 oz, then you just need to add the 6 remaining oz to get 70 lbs!

6 0

3 years ago

Read 2 more answers