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2 years ago

Can someone help me pls with these?!

Mathematics

1 answer:

geniusboy [140]2 years ago

3 0

Answer:

Justin survey - mean

Pair of numbers - 14 and 15

Range of salaries - can't read, but the lowest number has to be the answer.

Fourth number is 64

Babysitting mean is $15

data group has 1 mode

mean of 6 and mode of 5 is a)5,12,1,5,7

Find range is 25

Step-by-step explanation:

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Solve the system by graphing y=-1/2x-2 y=-3/2x+2

tensa zangetsu [6.8K]

Answer:

yes it's 4

Step-by-step explanation:

I think I guess

7 0

2 years ago

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Rudik [331]

Answer:

a=1/2b, 2a=b

Step-by-step explanation:

Since angle a is 1/2 the size of angle b, a=1/2b and b=2a. In order to get a numeral answer, you need the number of one of the angles.

7 0

1 year ago

Must m, in the equation y=mx+b=, always be a positive number?

Nadya [2.5K]

Of course not.

If the line rises higher as it goes from left to right,
then its slope ( 'm' ) is positive.

If it sinks lower as it goes from left to right,
then its slope ( 'm' ) is negative.

8 0

3 years ago

Read 2 more answers

A dome of a building is in the form of a hemisphere from inside it was whitewashed at the cost of rupees 4989.60 if the cost of

Luda [366]

Answer: $249.48\ m^2; 369.168\ m^3$

Step-by-step explanation:

Given

Cost of white-washing =Rs. 4989.60

Rate =20 per meter square

So, inside area of = $\dfrac{4989.60}{20}=249.48\ m^2$

The surface area of dome= $4\pi\ r^2=249.48$

$4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m$

The volume of air in the dome $V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\cdot 3.142\cdot (4.45)^3\\V=369.17\ m^3$

6 0

2 years ago

Machine A can produce 435 widget in 3 hours. At this rate how many widget can machine A produce in 7 hours?

Vesna [10]

Answer:

1015 widgets

Step-by-step explanation:

First investigate how many widgets can machine A produce in 1 hour:

If it produces 435 in 3 hours, then it will produce one third of that in one hour:

In ONE (1) hour $\frac{435}{3} = 145$ widgets

Therefore in seven (7) hours it will produce seven times the amount it does in one hour, that is:

$145 * 7 = 1015$ widgets

3 0

3 years ago

Read 2 more answers