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3 years ago

What does 2*3+3÷3 answer? A) 3 B) 0 C) 7

Mathematics

1 answer:

irakobra [83]3 years ago

7 0

C: 7

You do the multiplication and division first, then the addition and subtraction next. its a rule in math

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Please help!!!!!!!!!!!!!!

photoshop1234 [79]

Answer:

7^-22

Step-by-step explanation:

Exponent laws.

6 0

3 years ago

PLEASE HELP!!!

never [62]

Answer:

Lee has more pizza

Lee has 2.24 in^2 more than John

Step-by-step explanation:

step 1

Find the area of each slice of pizza

$A=\frac{1}{8}\pi r^{2}$

we have

$r=16/2=8\ in$ ----> the radius is half the diameter

substitute

$A=\frac{1}{8}\pi 8^{2}$

$A=8\pi\ in^{2}$

step 2

Find the area of John's part (area of shaded triangle)

The measure of the central angle of each slice of pizza is equal to

$360\°/8=45\°$

the height of triangle is equal to the base

Let

x ---->the base of the shaded triangle

$cos(45\°)=\frac{x}{r}$

$cos(45\°)=\frac{x}{8}$

Remember that

$cos(45\°)=\frac{\sqrt{2}}{2}$

substitute

$\frac{\sqrt{2}}{2}=\frac{x}{8}$

solve for x

$x=4\sqrt{2}\ in$

Find the area of shaded triangle

$A=(1/2)(4\sqrt{2})(4\sqrt{2})=16\ in^2$

step 3

Find the area of Lee's part

The area of Lee's part is equal to the area of two slices of pizza minus the area of two triangles

$2(8\pi)-2(16)=(16\pi-32)\ in^2$

assume

$\pi =3.14$

$(16(3.14)-32)=18.24\ in^2$

Lee's part is greater than John part's

Find the difference

$18.24-16=2.24\ in^2$

therefore

Lee has more pizza

Lee has 2.24 in^2 more than John

6 0

3 years ago

Will give brainlist

Cloud [144]

72 = 6*12 = 3*2 * 4*3 = 3*2*2*2*3

72 = 2*2*2*3*3

72=2^3 * 3^2

You can check your answer by multiplying out the factors

2*2*2*3*3

2*2 is 4

4*2 is 8

8*3 is 24

24*3 is 72

checks

4 0

3 years ago

Read 2 more answers

Select all of the situations which can be represented by the expression 25.75x + 10.

mafiozo [28]

Answer: 1. no

2. yes

3. no

4. yes

Step-by-step explanation:

8 0

3 years ago

Lesson Check (6.RRA.3d)

kotegsom [21]

It took Mark 2 1/2 hours to cycle 25 miles. 2 hours 30 minutes or 150 minutes.

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3 years ago