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cestrela7 [59]
2 years ago
15

Point Q was rotated about the origin (0,0) by -165​

Mathematics
1 answer:
Step2247 [10]2 years ago
7 0

Answer:D

Did it on khan academy

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Simplify this radical <br> 3√12<br> and this one <br> 2√(48x^3 )
MakcuM [25]
For number one you should get 6√3





4 0
3 years ago
Tyrone's age is 2 years less than 4 times his younger sister's age. If his younger sister's age is b years, which of the followi
drek231 [11]

Answer:

Four times his sister's age would be 4b.   his age is two years less, so we need to subtract 2.

put together, this is 4b - 2.

3 0
2 years ago
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10.
harina [27]
The answer is D.. :)
7 0
2 years ago
Given the m∠5 = 45°, find the measure of ∠8.
Serjik [45]

Answer:

If would be more helpful if ther was sometime of picture

6 0
2 years ago
Read 2 more answers
.
oksian1 [2.3K]

Answer:

t= 6\ s

Step-by-step explanation:

We know that the equation that models the height of the ball as a function of time is h(t) = -16t ^ 2 + 80t + 96.

Where the initial speed is 80 feet.

When the ball lands on the ground, its height will be h(t) = 0.

So to know how long it will take the ball to reach the ground, equal h (t) to zero and solve for t.

-16t ^ 2 + 80t + 96 = 0

To solve this quadratic equation we use the quadratic formula.

For an equation of the form:

at^2 +bt +c

The quadratic formula is:

t=\frac{-b\±\sqrt{b^2 -4ac}}{2a}

In this case

a =-16\\b = 80\\c =96

Then

t=\frac{-80\±\sqrt{80^2 -4(-16)(96)}}{2(-16)}

t_1=-1\\\\t_2=6

We take the positive solution

t= 6\ s

7 0
3 years ago
Read 2 more answers
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