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Mekhanik [1.2K]
4 years ago
10

What is 1a+1b I have no clue​

Mathematics
1 answer:
aev [14]4 years ago
4 0

Answer:

a+b

Step-by-step explanation:

=1a+1b

=1(a+b)

=a+b

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Jared mows several lawns in his neighborhood and is paid a different amount per lawn. He decided to make a graph of how much mon
Tresset [83]

Answer: the false statement is c

Step-by-step explanation:

The graph of the amount earned for number of lawns mowed versus number of lawns mowed is sketched in the attached photo.

From the graph,

a) Money earned is graphed on the y-axis

b) The slope of the line can be used to estimate how much money Jared earns per lawn

d) Jared graphed the number of lawns mowed on the x-axis

The false statement is

c) Jared earns on average 14 dollars per lawn

7 0
3 years ago
Which of the following is the conjugate of a complex number with 5 as the real part and −2 as the imaginary part?
ololo11 [35]

Hello!

Given two real numbers "a" and "b", the complex number z is defined as:

The complex conjugate of "Z = a + bi" is "Z = a – bi"

Given the complex number Z = a - bi, "a" is called the real part and "b" the imaginary part.

Therefore:

Re(a) = 5

Im(b) = -2

z = a - bi

z = 5 - (-2)i

\boxed{\boxed{z = 5 + 2i}}\end{array}}\qquad\checkmark

Answer: 

a. 5 + 2i

__________________________

I Hope this helps, greetings ... DexteR! =)

7 0
3 years ago
Please hurry!!!!! Also urgent!!!!
vekshin1

Answer:

x=4

Step-by-step explanation:

20x+5+24x-1=180

44x=176

x=4

7 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
A car travels at an average speed of 45 miles per hour for 8 miles, reduces its speed by 15 miles per hour for the next 4 miles,
kifflom [539]

Answer:

8 minutes

Step-by-step explanation:

time = distance/speed

A decrease of 15 mph from 45 mph means the speed on the second segment is 30 mph. Filling in the given values in the above equation, we have ...

... time = (4 mi)/(30 mi/h) = 4/30 h = 8/60 h × (60 min/h) = 8 min

8 0
3 years ago
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