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3 years ago

What are the coordinates of the image of the point (-2, 8) when rotated 180 degrees around the origin?

Mathematics

1 answer:

PSYCHO15rus [73]3 years ago

3 0

Answer:

C) (2, -8)

Step-by-step explanation:

The rule for a 180 degree rotation is negating both coordinates (making both x and y the opposite sign)

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Simplify 8 + 2(10 – r).

r-ruslan [8.4K]

8+20-2r which is equal to 28-2r so it is (B)

4 0

3 years ago

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Given that BD is the median of AABC and that AABC is isosceles, congruence postulate SSS can be used to prove which of the follo

marusya05 [52]

Answer:

Step-by-step explanation:

Because of isosceles triangle, AB = CB.

Because of the median, AD = CD.

Because of congruence of segments being reflexive, BD = BD.

By SSS, the triangles BAD and BCD are congruent.

Answer: B.

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2 years ago

Anna wants to buy a car in two years and wants to have $10,000 for the purchase. How much will Anna need to deposit today in an

Brut [27]

Answer:

Anna will need to deposit $\$9,050.25$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=2\ years\\A=\$10,000\\ r=0.05\\n=12$

substitute in the formula above and solve for P

$10,000=P(1+\frac{0.05}{12})^{12*2}$

$10,000=P(1.0042)^{24}$

$P=10,000/(1.0042)^{24}$

$P=\$9,050.25$

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3 years ago

2. Sandra plans to swim a total of 2 2/3 miles every week for 2 1/5

Fed [463]

Answer:

5 13/15 miles

Step-by-step explanation:

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2 years ago

The area of this parallelogram is 120 ft2 find the value of h

Free_Kalibri [48]

Answer: 60

Step-by-step explanation:

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3 years ago

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