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wolverine [178]
2 years ago
5

If a quadratic function is concave down, which of the following is true?

Mathematics
1 answer:
Goshia [24]2 years ago
3 0

Answer:

a is negative i think

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karen drove 3/4 of a mile in 1/60 of an hour .At this rate,how many miles would she drive in one hour
amid [387]

Answer:

45 miles

Step-by-step explanation:

1/60 of one hour (60 minutes) equates to 1 minute

Karen is driving 3/4 of a mile in 1 minute to multiply 3/4 and 60 to get 45 miles

6 0
3 years ago
You have 55,000 in your savings account that pays 2.5% annual interest and the inflation rate is 3.4%. How much buying power wil
diamong [38]
We solve the question as follows:
Simple interest=Principle×Rate×Time
Thus given:
p=$55000, R=2.5%, time= 1 year
thus
Interest=55000×0.025×1=$1375

To evaluate the amount required to keep up with the inflation, your interest rate should match the inflation rate otherwise prices are going up faster than the savings.
Required interest rate=55000×0.034×1=$1870

The buying power lost will be the difference between your required interest and actual interest.

Thus:
Buying power lost=1870-1375=$495

8 0
3 years ago
Which system of inequalities has the solution set shown in the graph?
Natalka [10]

Answer:

A. 25 < (x – 1)² + y² and 16 > x² + (y + 4)²

Step-by-step explanation:

the solutions are in the outside of the bigger circle, but inside of the smaller circle

4 0
2 years ago
Below are two parallel lines with a third line intersecting them.
Basile [38]

Answer:

x=66⁰

Step-by-step explanation:

they are co interior angles,

180-114=66⁰

To check,

114+66=180

brainlist me?

8 0
2 years ago
Compare the pair of fractions. ( &lt;,&gt;,=) <br> 3/4__5/6
Andrew [12]

Answer:

3/4 is less < than 5/6

Step-by-step explanation:

4 0
3 years ago
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