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
grin007 [14]
3 years ago
9

Sam receives the following scores on his English tests: 63, 84, and 96. What average score does he need on the last two tests in

order to maintain an 85 average?
Mathematics
1 answer:
OLEGan [10]3 years ago
4 0
Sam would have to get a 97 on his next test in order to maintain his average score at an 85. This is because if you add up 63, 84, 96, and 97 you get 340. When you divide 340 by the 4 test scores you get an average of exactly 85
You might be interested in
Histogram help!(look at the picture)The histogram below shows the admission cost of some theme parks across the country.How many
Andrei [34K]

Answer:

12

Step-by-step explanation:

5+7=12

5 have 7-14

7 have 15-22

The final answer is 12

3 0
2 years ago
For which intervals the graphs of the functions f(x) = x^3 + x^2 - 4x - 4 is positive
Nookie1986 [14]

Step-by-step explanation:

Consider a function

f

(

x

)

which is twice differentiable. The graph of such a function will be concave upwards in the intervals where the second derivative is positive and the graph will be concave downwards in the intervals where the second derivative is negative. To find these intervals we need to find the inflection points i.e. the x-values where the second derivative is 0.

5 0
2 years ago
Determine whether the given value of the variable is the solution of the equation (4-9)
Katen [24]

Answer: what do you think is the answer

Step-by-step explanation:

6 0
2 years ago
two cards are selected from a standard deck of 52 playing cards. the first card is not replaced before the second card is select
MatroZZZ [7]

Answer:

4/663

Step-by-step explanation:

(4/52)×(4/51)

= 4/663

= 0.00603

7 0
2 years ago
Solve the quadratic equation by square roots:<br><br> 1. 4x²= 81<br> 2. (4x-3)²+7=39
Nataly [62]

Answer:

see explanation

Step-by-step explanation:

(1)

given

4x² = 81 ( divide both sides by 4 )

x² = \frac{81}{4} ( take the square root of both sides )

x = ± \sqrt{\frac{81}{4} } = ± \frac{9}{2}

---------------------------------------------------------------------

(2)

subtract 7 from both sides

(4x - 3)² = 32 ( take the square root of both sides )

4x - 3 = ± \sqrt{32} = ± 4\sqrt{2}

Add 3 to both sides

4x = 3 ± 4\sqrt{2} ( divide both sides by 4 )

x = \frac{3}{4} ± \sqrt{2}

7 0
2 years ago
Other questions:
  • Where can I find China on this world map?
    14·2 answers
  • Help????????????????????
    12·1 answer
  • Look at the figure in the picture. Find JK. SHOW WORK
    11·1 answer
  • Will give brainliest<br> a. 39cm^2<br> b. 169cm^2<br> c. 338cm^2<br> d. 676cm^2
    13·2 answers
  • F(x)= -3x^3-x^2+x-3 identify the end behavior of each polynomial function
    5·1 answer
  • Please answer this!!​
    6·1 answer
  • Can someone help me with this
    15·1 answer
  • Hello good morning!! Anyone watch anime? My favorite is yu yu hakusho or one piece
    7·2 answers
  • PLEASE HELPPPPP
    5·1 answer
  • The length of a rectangle is 6 in longer than its width.if the perimeter of the rectangle is 68in find the length and width ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!