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3 years ago

Lesson 10.5 practice A Trigonometry

Mathematics

1 answer:

grigory [225]3 years ago

7 0

Times it all and thing look on the calouator and this check your answer KFC- Keep Filp Change

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Chloe swam 40 laps in the pool, but this was only 50% of her total swimming workout. How many more laps does she still need to s

vodomira [7]

Answer:

Step-by-step explanation:

50% is equal to 1/2 so if we multiply 40 by 2 you get 80 then subtract what she already did and you get 40.

hope this helped

4 0

3 years ago

Find the midpoint of AB. 1. (4.5, 4.5) 2. (1.5, 1.5) 3. (3, 3) 4. (2, 2)

eimsori [14]

Answer:

2. (1.5, 1.5)

Step-by-step explanation:

midpoint = (x1+x2)/2 , (y1+y2)/2

A = (-3,-3) and B = (6,6)

midpoint = (-3+6)/2, (-3+6)/2

= 3/2 , 3/2

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3 years ago

A tire manufacturer has a 60,000 mile warranty for tread life. The manufacturer considers the overall tire quality to be accepta

Dominik [7]

Answer:

Fail to reject H₀

Step-by-step explanation:

To reject the null hypothesis, the P-value must be less than 0.05.

Since the P-value is 0.15 which is greater than 0.05, we would fail to reject the null hypothesis as there is no sufficient evidence against the null hypothesis.

Thus, the conclusion would be to fail to reject H₀.

7 0

3 years ago

y=x^2-8x+6 complete the square to determine the vertex and maximum or minimum value. Determine the number of x-intercepts.

Irina18 [472]

Answer:

Below in bold.

Step-by-step explanation:

y = x^2-8x+6

y = (x - 4)^2 - 16 + 6

y = (x - 4)^2 - 10

So the vertex is at (4, -10)

The coefficient of x^2 of this function is 1 ( positive) so there will be a minimum value.

Minimum value = -10.

x-intercepts:

(x - 4)^2 - 10 = 0

(x - 4)^2 = 10

x - 4 = +/- √10

x = 4 +/- √10

- therefore there are 2 x-intercepts.

6 0

2 years ago

Michele wanted to measure the height of her school’s flagpole. She placed a mirror on the ground 48 feet from the flagpole, then

zepelin [54]

Refer to the diagram below for the sketch of the position of the mirror, Michelle, and the flagpole.

Using similar triangle concept, to find the height of the flagpole, we first need to find out the scale factor of the horizontal distance.
We write this as ratio
Mirror to Michelle : Mirror to Flagpole
12ft : 48ft
1 : 4

So the ratio of the height is
Michelle : Flagpole
1 : 4
5ft : 20ft

Answer: A

4 0

3 years ago