3 years ago

Solving Inequalities Using Addition or Sub

Mathematics

1 answer:

wariber [46]3 years ago

7 0

I believe it’s x < 9

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What is (3/4)^-2 and how do I express it as a positive?

dedylja [7]

16/9 because (3/4)^-2 simplified is 16/9

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4 years ago

–4.2 = –1.96(m − 10) + –4.2<br> Find variable

marshall27 [118]

Answer:

m=10

Step-by-step explanation:

–4.2 = –1.96(m − 10) + –4.2

–4.2=-1.96m+19.6-4.2

-19.6=-1.96m

m=10

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3 years ago

What is the equation of a circle centered at the origin with radius 20.. i cant find the answer and i even tried?

KIM [24]

General equation of a circle with centre (h, k) is given by:

$(x - h)^{2} + (y - k)^{2} = r^{2}$

Now, the origin is the centre and radius is 20, so substituting these points in yields:
$x^{2} + y^{2} = 20^{2}$
$x^{2} + y^{2} = 400$

4 0

3 years ago

Read 2 more answers

A urn contains 8 balls 4 orange 3 red and 1 green . Two are selected without replacement

Orlov [11]

Answer:

0.25

Step-by-step explanation:

Since, in the question , it is not mentioned that two balls of any specific colour,

the probability of getting two balls is: $\frac{2}{8}\\= \frac{1}{4}$

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3 years ago

A family buys a car for $20,000. The value of the car decreases about 20% per year. After 6 years, the family decides to sell th

Ugo [173]

Answer:

Step-by-step explanation:

The car starts at 20 000

After 1 year, it's worth 18 000

After 2 years, it's worth 14 400

After 3 years, it's worth 11 600

After 4 years, it's worth 9 280

After 5 years, it's worth 7 424

After 6 years, it's worth 5 975.20

No, the family should not sell the car for 4000

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2 years ago