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
slava [35]
3 years ago
15

A test has twenty questions worth 100 points. The test consists of multiple choice questions worth 3 points each and extended re

sponse questions worth 11 points each.
How many multiple choice questions are on the test?
Mathematics
1 answer:
Snezhnost [94]3 years ago
7 0
X+y=20 (3x+3y=60)
3x+11y=100

8y=40
y= 5
X=15
You might be interested in
Which relation is a function?
yKpoI14uk [10]

Answer:

C

Step-by-step explanation:

if you don't have from same x different outcomes is a function

think that x is a day you count votes, you can not get for the same day different y number of votes ( something is fishy then)

A. not a function because (6, -3) and (6, 3)

B. not  a function because (4,7) and (4,2)

C. is a function

D. not a function because (2, -1) (2,1) (2,3)

4 0
2 years ago
The value of the definite integral / 212x – sin(x) dx / 122x-sin(x) is
blondinia [14]

Hi there!

\boxed{= 70 + cos(12) - cos(2) \approx 71.26}

\int\limits^{12}_{2} {x-sin(x)} \, dx

We can evaluate using the power rule and trig rules:

\int x^n = \frac{x^{n+1}}{n+1}

\int x = \frac{1}{2}x^{2}

\int -sin(x) = cos(x)

Therefore:

\int\limits^{12}_{2} {x-sin(x)} \, dx = [\frac{1}{2}x^{2}+cos(x)]_{2}^{12}

Evaluate:

(\frac{1}{2}(12^{2})+cos(12)) - (\frac{1}{2}(2^2)+cos(2))\\= (72 + cos(12)) - (2 + cos(2))\\\\= 70 + cos(12) - cos(2) \approx 71.26

3 0
2 years ago
Find all numbers whose absolute value is -9.
Neko [114]

Answer:

None

Step-by-step explanation:

A number's absolute value will always be positive

|9| = 9

|-9| = 9

3 0
3 years ago
Read 2 more answers
A student formed a pattern in which each term is represented by a sum. The first four terms of the pattern are shown below
Rainbow [258]
N^2 should be the correct answer. Based on those numbers, it appears that the sum can be found by squaring the term n
5 0
3 years ago
An empty bucket weighs 800g.
erica [24]

Answer:

412.5 percent

7 0
3 years ago
Read 2 more answers
Other questions:
  • The circumferences of two circles are in the ratio of 2:5. The radius of the smaller circle is 16 in. What is the radius of the
    14·1 answer
  • What is the most specific name for quadrilateral ABCD? parallelogram rectangle rhombus square
    16·2 answers
  • 8x - 1 - 9x I don’t understand
    12·1 answer
  • In 2012, the population of China was about 1.351 x 10^9 and the population of Japan was about 1.280 x 10^8. Based upon these est
    7·1 answer
  • -9,-8.7,-8.4 find the 32nd term of each sequence
    15·1 answer
  • What is the logical conclusion, based upon the information given in the
    14·1 answer
  • If 2/3 of the 600 books were sold how many books were sold?
    10·1 answer
  • Evaluate this and answer as your choice<br> 25 2/3
    14·1 answer
  • Heya, i need help with these 3 questions. thank you a ton!
    5·1 answer
  • 4) 2 2/3 yards feet * O 8 feet O 6 feet O 2 feet O 7 feet​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!