All categories

4 years ago

(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!)

Mathematics

1 answer:

Scrat [10]4 years ago

7 0

C. Coordinates of D' (-6,3)

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

When any figure is rotated 180° in the counterclockwise direction, then the coordinates of the vertices is changed into its opposite sign.

(x, y) → (-x, -y)

The coordinates of the vertices of quadrilateral ABCD is changed when it is rotated 180 degrees counterclockwise about the origin as,

A (7,-7) → A'(-7,7)

B (4,-10) → B' (-4,10)

C (1.5, -2.5) → C' (-1.5, 2.5)

D (6, -3) → D'(-6,3)

So the coordinates of D' will be (-6,3)

<u></u>

You might be interested in

Please help me with Number three

yarga [219]

Answer:

25%

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The ratio of the number of Miki's stickers to the number of Ken's

Lera25 [3.4K]

Answer:

Miki had 288 stickers and Ken had 252 stickers.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

Miki has x stickers.

Ken has y stickers.

The ratio of the number of Miki's stickers to the number of Ken's stickers was 8:7.

This means that $\frac{x}{y} = \frac{8}{7}$ , that is: $7x = 8y$ , or $x = \frac{8y}{7}$

After Miki gave Ken 18 of her stickers, they had the same number of stickers.

This means that:

$x - 18 = y + 18$

$x - y = 36$

Since $x = \frac{8y}{7}$

$\frac{8y}{7} - y = 36$

$\frac{8y}{7} - \frac{7y}{7} = 36$

$\frac{y}{7} = 36$

$y = 36*7 = 252$

And

$x - y = 36$

$x = 36 + y = 36 + 252 = 288$

Miki had 288 stickers and Ken had 252 stickers.

7 0

3 years ago

I need help. The answer I have is also the wrong answer.

MaRussiya [10]

Answer:

Option D: The area will be multiplied by 16.

Step-by-step explanation:

Given that the area of the figure is 13 sq. in.

Let is say the figure is of dimensions: a & b.

Therefore, a.b = 13 sq. in

When each of the dimension is multiplied by 4, the dimensions would become 4a and 4b.

Therefore, the area would be: 4a . 4b = 16 a . b = 16(13) sq. in.

Hence, the area is multiplied by 16.

3 0

4 years ago

What represents the number written as 23 and 37 thousandths

RSB [31]

.023
.037

If you need them added, it is .060

7 0

3 years ago

Read 2 more answers

What is the expression obtained when the sum of 2a−16abc−45 and 2a+7abc+11 is subtracted from 6a+6abc−30?

kow [346]

Answer:

$2a+15abc+4$

Step-by-step explanation:

$(2a-16abc-45)+(2a+7abc+11)$

$\implies 2a-16abc-45+2a+7abc+11$

collect and combine like terms:

$\implies 4a-9abc-34$

$(6a+6abc-30)-(4a-9abc-34)$

Apply the distributive law $-\left(a-b\right)=-a+b$ :

$\implies 6a+6abc-30-4a+9abc+34$

collect and combine like terms:

$\implies 2a+15abc+4$

7 0

2 years ago