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2 years ago

If anyone can answer this, I will give you hearts!

Mathematics

1 answer:

kotegsom [21]2 years ago

6 0

Answer:

see attached

Step-by-step explanation:

Rotation 270° counterclockwise is equivalent to rotation 90° clockwise. The transformation of coordinates is ...

(x, y) ⇒ (y, -x) . . . . . . . rotation 270° CCW

This means the points are moved to ...

A(-2, 1) ⇒ A'(1, 2)

B( 1, 2) ⇒ B'(2, -1)

C(-2, 4) ⇒ C'(4, 2)

The rotated triangle is shown in the attachment. You may notice that A' and B are the same point.

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I bought a box from the post office that has a volume of 24 cubic centimeters,

Ierofanga [76]

A I hope it can help youb

6 0

3 years ago

Which expression equals a number that is NOT a rational number?

rewona [7]

$\frac{3\pi.3^3}{7}$ is not included as a rational number !

<u>Step-by-step explanation:</u>

Here we have , following expressions & we need to identify which of the following is not a rational number . Let's find out:

We know that , Rational Number : A number which can be expressed in form of p/q , where q is not equal to zero !

Here Expressions are:

$\frac{3\pi . 3^3}{7\pi}$ :

Let's evaluate this expression

⇒ $\frac{3(\pi) ( 3^3)}{7(\pi)}$

⇒ $\frac{3^4}{7}$

Therefore , It is a rational number ! .

$\frac{-18}{5}$ :

Let's evaluate this expression

⇒ $\frac{-18}{5}$

Therefore , It is a rational number ! .

$\frac{5}{3-7-9}$ :

Let's evaluate this expression

⇒ $\frac{5}{3-16}$

⇒ $\frac{-5}{13}$

Therefore , It is a rational number ! .

$\frac{3\pi.3^3}{7}$ :

Let's evaluate this expression

⇒ $\frac{3\pi.3^3}{7}$

⇒ $\frac{\pi.3^4}{7}$

Therefore , It is not a rational number , as pi is included ! .

4 0

3 years ago

Read 2 more answers

David is shoveling driveways to raise money for his Spring

Anna007 [38]

Answer:

Total savings = $63 + 12 ( m)

: m = number of driveways shoveled

Step-by-step explanation:

Here, the money earned for each road David shovels = $15

The number of driveway shoveled by David = 12

The total money saved David has after he is done with his work = $243

Now, The number of money saved by shoving 12 driveways

= 12 x ( Money earned by shoveling 1 driveway)

= 12 x ( $15) = $ 180

Total savings = His previous savings + Money earned from Shovel work

⇒ $243 = His previous savings + $ 180

⇒ His previous savings = $243 - $180 = $63

Now, we can write his total savings as:

Total savings = $63 + 12 ( m)

: m = number of driveways shoveled

8 0

3 years ago

Please let me know the answer, and please provide a detailed explanation.

Evgesh-ka [11]

Answer:

25%

Step-by-step explanation:

With $59.95 nearing to $60 and 79.95 nearing to $80.

80 x 25% =

80 x 1 / 4 =

80 / 4 =

7 0

2 years ago

Read 2 more answers

HELP ME PLS 30 points if RIGHT!!!! By what percent will a fraction increase if its numerator is decreased by 30% and its denomin

Rina8888 [55]

Answer:

40%

Step-by-step explanation:

just take a number, for example, 1, and do the math.

1 - 30% = 0.7.

1 - 50% = 0.5.

0.7 / 0.5 = 1.4.

thus the answer is 40%.

5 0

2 years ago