All categories

3 years ago

Please answer I need help no rush.

Mathematics

1 answer:

GenaCL600 [577]3 years ago

3 0

Answer:

12 divided by -6

Step-by-step explanation:

12÷(-6) (3) + (-2)

PEMDAS

P There are no operations inside the parentheses

E There are no exponents

MD Multiply and divide from left to right

12 divided by -6 is the first from left to right

You might be interested in

5/4+x/2 =3<br><br> Hey can someone explain this please!

Vikentia [17]

Answer:

x = $\frac{7}{2}$

Step-by-step explanation:

Given

$\frac{5}{4}$ + $\frac{x}{2}$ = 3 ( multiply through by 4 to clear the fractions )

5 + 2x = 12 ( subtract 5 from both sides )

2x = 7 ( divide both sides by 2 )

x = $\frac{7}{2}$

3 0

3 years ago

A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh

monitta

Answer:

The portion of the volume of the cup that is filled with water is $\frac{1}{8}$

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2}h$

we have

$r=6\ cm$

$h=12\ cm$

substitute

$V=\frac{1}{3}\pi (6)^{2}(12)$

$V=144\pi\ cm^{3}$

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

$V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}$

therefore

The portion of the volume of the cup that is filled with water is

$\frac{1}{8}$

8 0

3 years ago

Read 2 more answers

What are the hardest lessons in Maths 11th Chapterwise

lidiya [134]

Answer:

chapter 3,9,10 are quite hard for me

Step-by-step explanation:

8 0

3 years ago

Does anyone know how to do this?

Vlad1618 [11]

Answer:i think you have to equal them to each other

Step-by-step explanation:

8 0

3 years ago

A marathon runner ran the first 4 mi

Roman55 [17]

Step-by-step explanation:

4 miles / 27.8 min = 0.14388 miles per minute

26.2 / 0.143888 = 182.1 min

5 0

4 years ago

Read 2 more answers