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
Anvisha [2.4K]
3 years ago
10

Your test scores for the semester are 87,84 and 85.Can you raise your test average to 90 with you next test?

Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

Yes

Step-by-step explanation:

If you add 87.84, 85, and 100 you get 272.84. Once you divide that by 3 you get 90.946, which would be your test average if you score 100 on your next test.

You might be interested in
The density d of a substance is given by the formula d=mV, where m is its mass and V is its volume. Solve the formula for m.
NikAS [45]

Answer:m=d/V

Step-by-step explanation:

To solve for m, you must divide V from each side. Leaving you with m=d/V. Hope this helped:)

5 0
3 years ago
Read 2 more answers
The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of 0.5 min
Hitman42 [59]
Given:
μ = 2 min, population mean
σ = 0.5 min, population standard deviation

We want to find P(x>3).

Calculate the z-score
 z= (x-μ)/σ = (3-2)/0.5 = 2

From standard tables, obtain
P(x ≤ 3) = P(z ≤ 2) = 0.9772
Therefore
P(x > 3) = P(z > 2) = 1 - 0.9772 = 0.0228

Answer: 0.02275
8 0
3 years ago
Perimeter of a rectangle is 52 feet. If the length is 10 less than 2 times the width, what is the width?
ella [17]

Step-by-step explanation:

Let the width be x feet.

Therefore, length = 2x - 10

Perimeter of rectangle = 52

2(2x - 10 + x) = 52 \\ 2(3x - 10) = 52 \\ \therefore \:  3x - 10 =  \frac{52}{2} \\ \therefore \:  3x - 10 = 26\\ \therefore \:  3x = 26 + 10\\ \therefore \:  3x = 36 \\ \therefore \:  x =  \frac{36}{3} \\ \therefore \:  x =  12 \\ \purple{ \boxed{\therefore \: width \: of \: rectangle = 12 \: feet }}

6 0
3 years ago
Calculate the partial sum S for the sequence 243,81,27,....
Llana [10]

Answer:363


Step-by-step explanation:

We have to find partial sum for the sequence 243 , 81 , 27 ..... up to 5 terms(S5 given)

The sequence actually is 3^5,3^4.,3^3.....

Therefore first 5 terms are 1) 3^5 I.e. 243

2) 3^4 I.e. 81

3) 3^3 I.e. 27

4)) 3^2 I.e. 9

5) 3^1 I.e. 3

Adding all those no. we get partial sum of first 5 no. of the sequence

So, 243 + 81 + 27 + 9 + 3

= 363

Hope it helps!!!

4 0
3 years ago
Read 2 more answers
Which of the following is an irrational number?
Ad libitum [116K]

Answer:

sq root of 26

Step-by-step explanation:

One rule of an irrational number is that it cannot be written as an whole fraction, since the other two are fractions, the last must be irrational.

6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the sum
    14·2 answers
  • Counting from 1 to 100, how many 6s will you encounter?
    11·1 answer
  • What is the probability that all three coins will land on the same side
    15·1 answer
  • HEEEEEEELLLLLLPPPPPPPP!!!!!!!!!!
    5·1 answer
  • When vanessa's 3ds is fully charged it lasts for four hours. if she only charged it three-quarters full, how long would it last?
    8·1 answer
  • The points (-5, 5) and (5, r) lle on a line with slope -3. Find the missing coordinate r.
    13·1 answer
  • for what values of a, a polynomial in standard form, equivalent to the product of (x^2+x-1)(x-a), does not contain x^2
    6·1 answer
  • I need some help finding the volume of a sphere with a diameter of 18.6cm. The website says the answer I got from my calculator
    14·1 answer
  • Find the area of the figure. (Sides meet at right angles.)
    7·1 answer
  • Which property is illustrated by the following?<br><br> If 2(x+y)=z, then 2x+2y=z
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!