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jasenka [17]
3 years ago
10

Whoever helps gets brainlyess answer and it's worth 10 points

Mathematics
2 answers:
katen-ka-za [31]3 years ago
5 0
The answer is 1 to 2, so the third choice
bogdanovich [222]3 years ago
4 0
Answer is 1 to 2.
They both divide evenly by 20, 20/20=1 and 40/20=2
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Help with this question ASAP!
user100 [1]

Answer:

After 4s

Step-by-step explanation:

Given the ball is initially projected upwards with a velocity of 64ft per sec and we are required to find the time at which it reaches the ground .There are many approaches to solve this problem we will follow this one:

It is also known as the time of flight for the ball which can be found by doubling the time taken for the ball to reach to its maximum height or the point where velocity is zero.

Now h(t)=-16\times t^{2} +v_{0} \times t+h_{0}

For the time taken to reach the max height \frac{dh}{dt} =0.

Which implies that -32t+v=0.

∴Time taken to travel halfway through the path =2sec.

∴total time =2\times 2=4sec

4 0
3 years ago
The polynomial is a difference of perfect squares. Use the formula a2 – b2 = (a + b)(a – b) to factor completely. 81x2 – 49 The
borishaifa [10]
To answer your question: Rewrite <span>81<span>x2</span></span> as <span><span>(<span>9x</span>)</span>2</span>.<span><span><span>(<span>9x</span>)</span>2</span><span>−49</span></span>Rewrite 49 as <span>72</span>.<span><span><span>(<span>9x</span>)</span>2</span><span>−<span>72</span></span></span> Both terms are perfect squares, factor using the difference of squares formula, <span><span><span>a2</span><span>−<span>b2</span></span></span>=<span><span>(<span>a+b</span>)</span><span>(<span>a<span>−b</span></span>)</span></span></span> where <span>a=<span>9x</span></span> and <span>b=7</span>.<span><span>(<span><span>9x</span>+7</span>)</span><span>(<span><span>9x</span><span>−7</span></span><span>)</span></span></span>
3 0
3 years ago
Read 2 more answers
Help please!!!!!!!!!??????
photoshop1234 [79]
The answer is 2 meters.

8 0
3 years ago
Read 2 more answers
Rewrite the expression without parentheses. 15m − ( 3 + 5m )
marin [14]

Answer:

Rewritten: 15m -3 - 5m

Step-by-step explanation:

15m − ( 3 + 5m )

15m -3 - 5m

10m - 3

8 0
2 years ago
What is 6X + 9 + 2x ​
alukav5142 [94]

Answer:

8x + 9

Step-by-step explanation:

Combine 6x and 2x since they are "like variables" meaning they both contain an x, and write in standard form ax + bx + c

6 0
3 years ago
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