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Semmy [17]
3 years ago
5

Consider the function f(x)=10x^2+20x-11

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

Answer: Vertex = (-1, -21) y-intercept = (0,-11)

Step-by-step explanation:

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A random sample of bolts is taken from inventory, and their lengths are measured. The average length in the sample is 5.3 inches
LekaFEV [45]

Answer:

L_x=5.3 inches

Step-by-step explanation:

Average length \=x =5.3 inches

Standard deviation \sigma=0.2 inches

Sample size n=50

Generally The point estimate for the mean length of all bolts in inventory is

L_x= \=x

L_x=5.3 inches

3 0
3 years ago
Use the table to answer the question.
Over [174]

Answer:

in the survey, 16 out of 80 students who where asked favored chicken nuggets.

so we need to calculate like this:

530 * 16/80

=530 * 1/5

=530/5

=106

hope this helps your understanding, wish you good grades

3 0
3 years ago
OK fianlly i reached ace yeeeeeeeeeeeeeeeeee
butalik [34]

Answer: Nice!

Step-by-step explanation:

Cause Nice!

8 0
3 years ago
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How many 2 1/2 inch-long steel stakes can Curtis cut from a piece of steel that is 25 inches long?​
aleksley [76]
10 or u could do 25 divided by 2.5 is 10
7 0
2 years ago
If Tan A=5/12 then find cot A, cos A and Sin A
Ostrovityanka [42]

Cot A=1/tan A=12/5

cos A= 12/13

sin A=5/13

Draw a right angled triangle

the hypotenuse is the longest side which is 13 using Pythagoras theorem

the side opposite the angle A is 5

the side closest to the angle A which is called the adjacent is 12

sinA =opp/hyp

cos A= adj/hyp

cotA =1/tanA=cos A/sinA

Note: Pythagoras theorem is

hyp²=opp²+adj²

7 0
2 years ago
Read 2 more answers
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