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
blondinia [14]
3 years ago
15

a student tries out for the track and runs 45 seconds. The coach tell her she will have to cut her time 50% to make the team. ho

w fast must she runs to make the team
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0
She will have to run in 22.5 seconds.

45 - 50% = 22.5
You might be interested in
For which value of theta is cot (theta) undefined?
sattari [20]

The cotangent function is defined as the ratio between cosine and sine of a given angle, i.e.


\cot(x) = \frac{\cos(x)}{\sin(x)}


Since you can't have zero at the denominator, the cotangent function is not defined when the sine is zero.


Let's look at your option:


\sin(90^\circ) = 1, so the cotangent is defined here


\sin(180^\circ) = 0, so the cotangent is not defined here


\sin(270^\circ) = -1, so the cotangent is defined here


\sin(450^\circ) = \sin(360^\circ+90^\circ)=\sin(90^\circ) = 1, so the cotangent is defined here

6 0
3 years ago
Read 2 more answers
When 7 is subtracted from two third of the square of a number it becomes 17 find the number​
Dmitry [639]

Answer:  6 or -6

hello,

Step-by-step explanation:

Let say n the number

\dfrac{2}{3} *n^2-7=17\\\Longrightarrow\ \dfrac{2}{3} *n^2=24\\\Longrightarrow\ n^2=\dfrac{3*24}{2}\\\Longrightarrow\ n^2=36\\\Longrightarrow\ (n-6)(n+6)=0\\\\n=6\ or\ n=-6\\

8 0
3 years ago
A town map has a scale of 2cm:0.5km what is the actual distance for a walk measured at 9cm on the map?
Nastasia [14]

Answer: 2.25 km

Step-by-step explanation:

2 cm = 0.5 km

9 cm = (9 x 0.5)/2

= 2.25 km

4 0
3 years ago
Read 2 more answers
3(x – 5) = 2(x – 5) + x solve for x and number of soultions
ArbitrLikvidat [17]

Answer:

Step-by-step explanation

3x-15=2x-10+x

3x-15=3x-10

in this step, problem happens

becoz both side doesnt equal, no ans can be proven

4 0
3 years ago
Read 2 more answers
PLEASE HELP!!
strojnjashka [21]
The document not working
8 0
3 years ago
Other questions:
  • Rearrange the formula a2 + b2 = c2 for a. A) a = (c2 − b2)2 B) a = (c2 + b2)2 C) a = c2 − b2 D) a = c2 + b2
    6·2 answers
  • What is the value of x ? <br> a. 10.4<br> b. 52<br> c. 61.6 <br> d. 92
    6·1 answer
  • A freight train travels 50 miles per hour. Write a linear function that describes the distance the train travels over time. Then
    5·1 answer
  • Maths equation : solve (2 - x)² &lt; 4/25​
    10·1 answer
  • A video game club charges $8 per month as a membership fee, plus $2.75 for each game rental. Eugenie plans to join and rent no m
    11·2 answers
  • 2x+y=10<br><br> x-intercept?______<br> y-intercept?______<br><br> have to show work
    7·1 answer
  • Evaluate the numerical expression 24<br> Enter your answer in the grid below.
    11·2 answers
  • A box is filled with five green card six green card and three blue cars. A card is chosen at random from the box. What is the Pr
    8·1 answer
  • A triangle has angle measurements of 89°, 78°, and 13°. What kind of triangle is it?
    12·2 answers
  • The number of students from there sections of class 6 are 32,3640. find minimum number of books required for their class library
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!