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Bond [772]
3 years ago
13

Determine the direction that this parabola opens: y = -5x2 - 10x - 13

Mathematics
2 answers:
babunello [35]3 years ago
8 0
The parabola opens downwards












Pie3 years ago
7 0

Answer:

sorry cant :(

Step-by-step explanation:

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Find the volume of the composite solid below. If needed,round to the nearest hundredth. Use 3.14
ZanzabumX [31]

Answer:

429.42 cm

Step-by-step explanation:

<u>Volume of a rectangle prism:</u>

V = whl

V = (5)(12)(7)

V = 420

<u>Volume of a cylinder:</u>

V = πr²h

V = (3.14)(1²)(3)

V = (3.14)(1)(3)

V = 9.42

<u>Combined:</u>

420 + 9.42

429.42

6 0
3 years ago
Tim predicts he will get 98 points on the next exam. If Tim actually earned 62 points, what was Tim's percent error? Round your
cupoosta [38]
% change= (new # - original #) ÷ original # x 100

original #= 98
new #= 62

% change= (62-98)/98 x 100
= -36/98 x 100
= -0.36734 x 100
= -36.73%

Rounded to nearest 10th of %= -36.7%

CHECK:
= 98 - (98 * 36.73%)
= 98 - (98 * 0.3673)
= 98 - 36
= 62 new #

ANSWER:
Her percent error was 36.7% (rounded to the nearest tenth of a percent). The negative indicates a decrease.

Hope this helps! :)
5 0
3 years ago
Read 2 more answers
5. The average weight of a blue whale is 4 x 105 pounds. The average weight of an elephant is 1 x 10 pounds. How many more times
solong [7]

Answer:

42 more times

Step-by-step explanation:

1) 4×105=420 (pounds)-blue whale

2) 1×10=10 (pounds)- elephant

3) 420:10=42

7 0
3 years ago
Determine points of a function that have horizontal or vertical tangent lines f(x)= (2x^3+3)/((x-1)
yan [13]
Answer:

as x tends to infinity y=infinity

as x tends to 1 y=infinity

x=1 vertical asymptote
6 0
3 years ago
How many times larger is 9 × 10^7 than 3 × 10^6?<br><br> A. 30<br> B. 0.3<br> C. 300<br> D. 3
horrorfan [7]

Answer:

A.30

Step-by-step explanation:

9 × 10^7 = 90 000 000

3 × 10^6 = 3 000 000

90 000 000 / 3 000 000  = 30

3 0
3 years ago
Read 2 more answers
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