1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marina86 [1]
3 years ago
7

Gretchen finished her first lap in the 200 m freestyle event in 28.78 seconds. She completed the second lap in 31.31 seconds. By

how much did her time increase in the second lap?
Mathematics
1 answer:
Ray Of Light [21]3 years ago
8 0

Answer:

her time increased 2.53 seconds

Step-by-step explanation:

subtract 28.78 from 31.31 to get how much her time increased.

You might be interested in
X^2 -9 divided by x+3
WINSTONCH [101]

Step-by-step explanation:

Hey, there!!

Given that,

\frac{ {x}^{2} - 9 }{x + 3}

{ we can write (a^2-4) as (a^2 - 2^2) also as (x^2- 9) can be written as (x^2 - 3^2)}.

\frac{ {x}^{2} -  {3}^{2}  }{x + 3}

We have a^2-b^2= (a+b) (a-b), so keep same formula on it.

\frac{(x + 3)(x - 3)}{(x + 3)}

(x+3) in numerator and denominator gets cancelled,

(x - 3)

Therefore, (x-3) is the final value.

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

4 0
3 years ago
cassie is training for a marathon. she has been recording her miles in a journal leading up to race day. the following table sho
Umnica [9.8K]

Answer: There are a lot of possibilities

- she was taking a break

- she forgot

- she was too busy

- she was injured

- she didn't want to

- there was an emergency

I guess you could pick your favorite...

8 0
3 years ago
Please help me I need to finish
Talja [164]

The given triangle is a Right angled triangle,

By applying trigonometry :

\boxed{\tan( \theta)  =  \frac{opposite  \: \: side}{adjacent \:  \: side} }

  • \tan(45 \degree)  =  \dfrac{7}{a}

  • 1 =  \dfrac{7}{a}

  • a = 7

_____________________________

\mathrm{ ☠ \: TeeNForeveR \:☠ }

5 0
3 years ago
What is3square root27x^9
geniusboy [140]

Answer:

27x^9

Step-by-step explanation:

3 × √27 × x^9

Solve the square root.

3 × 9 × x^9

Multiply the terms.

27× x^9

The final answer is 27x^9.

7 0
3 years ago
Pls help I NEED THIS GRADE U WILL GET BRAINLIEST
AlekseyPX

Answer:

2, 4, 8

Step-by-step explanation:

They are an equal size to 6.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Complete the equation of the line through (2, -2) and (4,1)
    6·1 answer
  • 2.0 x 10³ =<br> Write this number in standard notation
    10·2 answers
  • Liz am confused on those places help
    15·2 answers
  • The average systolic blood pressure was found to be 140 mm for people who have high responsibility jobs, specifically investment
    5·1 answer
  • A local coffee company recently started selling a new seasonal flavored drink. To determine how much the new flavor is liked by
    12·1 answer
  • Simplify the expression (3 - 4i)(1 + 5i) - (2 - i). Show your work
    13·1 answer
  • The cones below are similar, although not drawn to scale
    9·2 answers
  • Whatcha of the following represent the solution to the given quadratic inequality? y≤-x^2-3x+10?
    11·1 answer
  • The mass of earth is 5.97 X 10^24 kilograms. The mass of the moon is 7.34 X 10^22 kilograms. What is the combined mass of earth
    15·1 answer
  • You walk 3 mi/h for 0.75h and 2.5mi/h for 2h. what is your average speed over the total distance? ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!