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3 years ago

1. The function h = - 4.9x2 + 40x + 1 gives the height of a baseball after it has been hit

Mathematics

1 answer:

pickupchik [31]3 years ago

4 0

The ball will hit the ground between 8 and 9 seconds

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Write sin81 in terms of cosine

strojnjashka [21]

Answer:

Since 81° is less than 90, we can express this in terms of a cofunction. sin(θ) = cos(90 - θ) sin(81) = cos(90 - 81) sin(81) = cos(9)

Step-by-step explanation:

7 0

3 years ago

Application Question:

Alika [10]

When you add 4 to 25 you get 21 then subtract 11 and get 10 and then add 15 which is equal to 25 and then subtract 13.

the answer is 12

7 0

3 years ago

9/11 =?/22 what is the answer

hammer [34]

If you would like to solve the equation 9/11 = x/22, you can calculate this using the following steps:

9/11 = x/22 /*22
x = 9/11 * 22
x = 18

The correct result would be 18.

7 0

3 years ago

Read 2 more answers

Andre has been practicing his math facts. He can now complete 135 multiplication facts in 90 seconds. If Andre is answering ques

9966 [12]

Andre can complete 1.5 facts in one second.

Step-by-step explanation:

Given,

Number of multiplication facts completed in 90 seconds = 135

Therefore;

90 seconds = 135 facts

Dividing both sides by 90 to fins the facts per second

$\frac{90}{90}\ seconds=\frac{135}{90}\ facts\\\\1\ second = 1.5\ facts$

Andre can complete 1.5 facts in one second.

Keywords: unit rate, division

Learn more about unit rates at:

#LearnwithBrainly

4 0

3 years ago

For the love of God help me !! I'm desperate for it tomorrow

USPshnik [31]

$D:5x-2>0 \wedge x>0 \wedge x-1>0\\D:5x>2 \wedge x>0 \wedge x>1\\D: x>\frac{2}{5} \wedge x>1\\D:x>1\\\log_2(5x-2)-\log_2x-\log_2(x-1)=2\\\log_2\frac{5x-2}{x(x-1)}=\log_24\\\frac{5x-2}{x(x-1)}=4\\4x(x-1)=5x-2\\4x^2-4x=5x-2\\4x^2-9x+2=0\\4x^2-x-8x+2=0\\x(4x-1)-2(4x-1)=0\\(x-2)(4x-1)=0\\x=2 \vee x=\frac{1}{4}\\\frac{1}{4}\not \in D \Rightarrow \boxed{x=2}$

8 0

3 years ago

Read 2 more answers