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
NemiM [27]
3 years ago
13

If x = 7 and y = 4, then x + 2y =

Mathematics
1 answer:
solong [7]3 years ago
8 0
15!

x + 2y = ?
(7) + 2(4) = ?
7 + 8 = 15
You might be interested in
A musician plans to perform 4 selections. In how many ways can she arrange the musical selections?
Y_Kistochka [10]
The musician can arrange the musical selections 24 times. :)
8 0
3 years ago
Read 2 more answers
Simplify the expression.<br> (-0.75x - 5)-(3.5x + 7.4)<br> The simplified expression is
astra-53 [7]
−5−4.25⋅−7.4
Writing this to meet 20 character requirement
5 0
3 years ago
Read 2 more answers
nikki has four clients and each appointment is 90 minutes how long will it take her to serve four clients​
Masteriza [31]

Answe360

Step-by-step explanation

If you multiply 90 by 4, you get 360 think of it as for groups with 90 in them.

8 0
3 years ago
Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil.
oksian1 [2.3K]

Answer:

0.36 = 36% probability that the land has oil and the test predicts it

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

45% chance that the land has oil.

This means that P(A) = 0.45

He buys a kit that claims to have an 80% accuracy rate of indicating oil in the soil.

This means that P(B|A) = 0.8

What is the probability that the land has oil and the test predicts it?

This is P(A \cap B). So

P(B|A) = \frac{P(A \cap B)}{P(A)}

P(B \cap A) = P(B|A)*P(A) = 0.8*0.45 = 0.36

0.36 = 36% probability that the land has oil and the test predicts it

5 0
3 years ago
How do you determine what side of the triangle is the hypotenuse?
sergij07 [2.7K]
The hypotenuse is always the longest side and it is the side that is opposite the right angle.
4 0
3 years ago
Other questions:
  • what rational number lies in between -14/31 and -17/33? A. -989/3069 B. -123/276 C. -989/2046 D. -4/7
    11·1 answer
  • Write the series using summation notation. −3+4−5+6−7
    9·1 answer
  • A ruby throated hummingbird beat its wings about 53 times each second about how many times does a ruby throated hummingbird beat
    8·1 answer
  • Find the distance between the two points.<br> 8. (-1,0), (-8, 4)
    5·1 answer
  • What is GCF and LCM of -21 and 80? ASAP! Please Help! Will give Brainliest! Explanation Please! Love you forever!
    11·1 answer
  • What is the answer to 6/4 fraction
    5·2 answers
  • Help ASAP Please!!!!
    12·1 answer
  • The Taylor family's pancake recipe uses 2 teaspoons of baking powder for every 1/3 of a teaspoon of salt. How much baking powder
    7·1 answer
  • Which of the following do you need to make a box &amp; whisker plot?
    6·2 answers
  • Please help and explain how you got it!!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!