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3 years ago

11

What happens to the decimal point in a number when the number is divided by 100?

2 answers:

nydimaria [60]3 years ago

8 0

The decimal moves 2 spaces to the left.

For example:
4 / 100 = 0.04

lesya692 [45]3 years ago

8 0

When a number is divided by 100, the dempcimal point moves 2 spaces to the left.

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Select all the expressions that are equivalent to .

olga55 [171]

Answer:

1. 9 - 10n = -1 + 1/10

2. 14 - 3n = 14 - 3n

3.14 - 21 = - 7⋅ (3n - 2)

4. (2-3n)⋅7 = Sorry i dont know

5. I HAVE NO IDEA SO SORRY

Step-by-step explanation:

5 0

3 years ago

Here is rectangle QRST.

ValentinkaMS [17]

Answer:

QR = 5 units

RS = 10 units

Perimeter of QRST = 30 units

Step-by-step explanation:

The perimeter of a rectangle is given by the formula:

$p=2(l+w)$

where

$p$ is the perimeter of the rectangle

$l$ is the length of the rectangle

$w$ is the width of the rectangle

Now, to find the width, QR, and the length, RS, of the rectangle, we are using the distance formula:

$d=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}}$

where

$d$ is the distance

$(x_1,y_1)$ are the coordinates of the first point

$(x_2,y_2)$ are the coordinates of the second point

- For QR:

The first point of QR is Q(-3, 0) and the second is R(0, 4), so $x_1=-3$ , $y_1=0$ , $x_2=0$ , and $y_2=4$ .

Replacing values

$d=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}}$

$d=\sqrt{(0-(-3))^{2}+(4-0)^{2}}$

$d=\sqrt{(0+3)^{2}+(4)^{2}}$

$d=\sqrt{3^{2} +4^{2}}$

$d=\sqrt{9+16}$

$d=\sqrt{25}$

$d=5$

- For RS

The first point of RS is R(0, 4) and the second is S(8, -2), so $x_1=0$ , $y_1=4$ , $x_2=8$ , and $y_2=-2$ .

Replacing values

$d=\sqrt{(8-0)^{2}+(-2-4)^{2}}$

$d=\sqrt{(8)^{2}+(-6)^{2}}$

$d=\sqrt{64+36}$

$d=\sqrt{100}$

$d=10$

Now that we know that the width QR is 5 units and the length RS is 10 units, we can find the perimeter of our rectangle:

$p=2(l+w)$

$p=2(RS+QR)$

$p=2(10+5)$

$p=2(15)$

$p=30$

We can conclude that QR = 5 units, RS = 10 units, and the perimeter of rectangle QRST is 30 units.

3 0

3 years ago

Read 2 more answers

Here is the right photo please help i need this before july 1st thank you

Reil [10]

Answer:

i hope this helps

Step-by-step explanation:

2 $x^{2}$ -16=0

+16 +16

2 $x^{2}$ =16

÷2 ÷2

$x^{2}$ = 8

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

x= $\sqrt{8}$

-5 $x^{2}$ +9=0

-9 -9

-5 $x^{2}$ =-9

÷-5 ÷-5

$x^{2}$ =1.8

$\sqrt{x^{2} }$ = $\sqrt{1.8}$

x= $\sqrt{1.8}$

6 $x^{2}$ -15=27

+15 +15

6 $x^{2}$ =42

÷6 ÷6

$x^{2}$ =7

$\sqrt{x^{2} }$ = $\sqrt{7}$

x= $\sqrt{7}$

4 0

4 years ago

Plz help ASAP 60 points if you answer this correctly

Rina8888 [55]

Answer:A=9.25

B=lisa

Step-by-step explanation:

6 0

4 years ago

Read 2 more answers

What is the solution to this equation?

ZanzabumX [31]

Answer:

x = 21

Step-by-step explanation:

(x+6)^1/3 - 5= -2

add 5 to both sides of the equation:

(x+6)^1/3 = 3

cube both sides of the equation:

x + 6 = 27

subtract 6 from each side:

4 0

3 years ago