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3 years ago

Can someone please help me with this question?

Mathematics

1 answer:

Vanyuwa [196]3 years ago

8 0

Answer:

5 seconds

Step-by-step explanation:

In 5 seconds it will be at 98 meters

x = -b/2a

x = -20/2(-2) = -20/-4 = 5

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I’m the worst at equations like these

devlian [24]

Answer:

5 2.9

Step-by-step explanation:

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3 years ago

In slope-intercept form, what is the equation of the line passing through the points (−2, 19) and (5, −9)? y = −4x − 11 y = −4x

lions [1.4K]

Answer:

y = -4x + 11

Step-by-step explanation:

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3 years ago

Read 2 more answers

6TH grade math please help AP EX

hjlf

Answer:

I think the 1st one would be 10...

Step-by-step explanation:

Because 12-2=10 and 18-8=10.

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3 years ago

(Sinθ-cosθ)(sinθ+cosθ)=1-2cos^2θ

ohaa [14]

Answer:

See below

Step-by-step explanation:

$( \sin \theta - \cos \theta)( \sin \theta + \cos \theta) = 1 - 2 { \cos}^{2} \theta \\ \\ LHS = ( \sin \theta - \cos \theta)( \sin \theta + \cos \theta) \\ \\ = \sin^{2} \theta - \cos^{2} \theta \\ \\ =1 - \cos^{2} \theta - \cos^{2} \theta \\( \because \sin^{2} \theta =1 - \cos^{2} \theta) \\ \\ = 1 - 2 { \cos}^{2} \theta \\ = RHS$

Thus proved

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3 years ago

Eighth grade > W.14 Solve equations: word problems HCP

Firdavs [7]

Answer:

Andrew has been in the book club for 18 months.

Step-by-step explanation:

The number of books already read by Andrew = 13 books

He reads 1 book each month after joining the book club.

Number of books he has read after joining the club = 31 books

Number of books read after joining the Club

= Total books Read - Books read beforehand

= 31 books - 13 books

= 18 books

So, the number of books Andrew read within the club = 18 books

Now, as Andrew read 1 book per month

⇒ Andrew reads 18 books in 18 x ( 1 Month) = 18 Months

Hence, Andrew has been in the book club for 18 months.

4 0

3 years ago