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sladkih [1.3K]
3 years ago
8

Determine the direction that this parabola opens y=-4x^2-8x-13

Mathematics
1 answer:
Mazyrski [523]3 years ago
4 0

Answer:

The direction that the paraboa y=-4x^2-8x-13 open is

Down

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There were 1100 apples at a fruit stall there were 220 more apples than mangoes. How many apples and mangoes were there althoget
Lelu [443]
1100-220=880
880+1100=1980

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3 years ago
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A car travels 20 1/2 miles in 2/3 of an hour. What is the average speed, in miles per hour, of thr car?
zmey [24]

Answer:

27.33333... mph

Step-by-step explanation:

Find 1/3 of 20 1/2: 1/3*41/2=41/6

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Now add 20 1/2 and 6.83333 = 27.3333...

Therefore, 27.33333... mph

3 0
3 years ago
Christopher plays quarterback for a
jeka94

Answer:

70%

Step-by-step explanation:

42\div60

<u><em>Calculate</em></u>

<u><em /></u>\frac{42}{60}

<u><em>Cross out the common factor</em></u>

<u><em /></u>\frac{7}{10}

<u><em>Multiply a number to both the numerator and the denominator</em></u>

<u><em /></u>\frac{7}{10}\times\frac{10}{10}

<u><em>Write as a single fraction</em></u>

<u><em /></u>\frac{7\times10}{10\times10}

<u><em>Calculate the product or quotient</em></u>

<u><em /></u>\frac{70}{10\times10}

<u><em>Calculate the product or quotient</em></u>

<u><em /></u>\frac{70}{100}

<u><em>Rewrite a fraction with denominator equals 100 to a percentage</em></u>

<u><em /></u>70%

<em>I hope this helps you</em>

<em>:)</em>

8 0
2 years ago
7 1/4 times 2 x 2 + (8 1/2 - 2) divided by 3
11111nata11111 [884]
The answer is 31 1/6, I hope this helps!
6 0
2 years ago
Kate has scored 10 free throws out of 18 tries. She would really like to bring her free throw average up to at least 80%. How ma
wlad13 [49]
(10+t)/(18+t)=8/10
8(18+t)=10(10+t)
144+8t=100+10t
44=2t
t = 22 throws
3 0
3 years ago
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