3 years ago

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

$L_x= \=x$

$L_x=5.3 inches$

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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

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3 years ago

OK fianlly i reached ace yeeeeeeeeeeeeeeeeee

butalik [34]

Answer: Nice!

Step-by-step explanation:

Cause Nice!

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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

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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

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