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miskamm [114]
3 years ago
13

A ball is thrown from a height of 70 meters with an initial downward velocity of 10/ms. The ball's height h (in meters) after t

seconds is given by the following.
h=70-10t-5t^2
Mathematics
1 answer:
dmitriy555 [2]3 years ago
3 0

Answer:h=−5t2−10t+70

Step-by-step explanation:

<!>BRAINLIEST APPERICATED<!> :D

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A box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted. A pair of contact lenses is drawn at random from th
tia_tia [17]

Answer:

\dfrac{2}{3}.

Step-by-step explanation:

It is given that a box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted.

1 dozen = 12 units

Total pairs of contact lenses =2\times 12 = 24

Tinted pairs of contact lenses = 8

Pairs of contact lenses not tinted = 24 - 8 = 16

If a pair of contact lenses is drawn at random from the box, then we need to find the probability that it is not tinted.

P(\text{Not tinted})=\dfrac{\text{Pairs of contact lenses not tinted}}{\text{Total pairs of contact lenses}}

P(\text{Not tinted})=\dfrac{16}{24}

P(\text{Not tinted})=\dfrac{2}{3}

Therefore, the required probability is \dfrac{2}{3}.

4 0
3 years ago
How much vanilla extract will be needed to make 2 dozen cookies? Show your work.
frozen [14]

Answer: the answer is 2 teaspoons of vanilla extract.

hope this helped

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If triangle ABC is similar to triangle DEF, which statement is true about the two triangles?
Nataly_w [17]

Answer:

<h3>B.)Segment BC is proportional to segment EF, and angles A and D are congruent.</h3>

Step-by-step explanation:

If ΔABC and ΔDEF are similar, then

AB is proportional to DE

BC is proportional to EF

CA is proportional to FD

and

angles A and D are congruent

angles B and E are congruent

angles C and F are congruent

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T x -4 \geq -25
The sign in the middle means "more than or equal to" or "at least"
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