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Gre4nikov [31]
3 years ago
15

One winter day, the outside temperature, y, was never below −1°. The inside of a car was always warmer than the temperature outs

ide by at least 4°. Which graph of a system of inequalities represents this scenario?

Mathematics
2 answers:
OLga [1]3 years ago
6 0

Answer:

c

Step-by-step explanation:

andreev551 [17]3 years ago
3 0

Answer:

It's C

Step-by-step explanation:

Your graph should be this one, with both lines solid because, the X line, or red, has to be at least -1 or higher, and the Y line, or the blue, has to be +4 or higher

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HW #35: similar polygons
Alex73 [517]

Answer:

Q 9:

Because the two polygons are similar so AB ≈ PQ = SR

Scale factor is 25/20 = 1.25

Perimeter of ABCD = 14+20+14+20 = 68

We can find the length of SP by multiplying the scale factor with the AD so

SP = 14 * 1.24= 17.5

Perimeter of PQRS = 17.5+25+17.5+25 = 85

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

Q 10:

Because the two polygons are similar so AD ≈. EH

Scale factor is 7/14 = 0.5

Perimeter of ABCD = 12+14+13+26 = 65

Because the two polygons are similar so DC ≈ HG

and our scale factor is 0.5 so HG = 13/2 = 6.5

Perimeter of EFHG = 6 + 7 + 6.5 + 13 =  32.5

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Q 11:

The Geometric Mean is a special type of average where we multiply the numbers together and then take a square root (for two numbers). And the formula for finding the Geometric mean of two numbers a and b is

\sqrt{a*b}

So geometric mean of the 8 and 10 can be found as

\sqrt{8*2} = \sqrt{16} = 4

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Q 12:

Similarly we can using the above formula of finding the geometric mean of 5 and 45 as

\sqrt{5*45} = \sqrt{225} = 15


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Q 13:

and we can find the geometric mean of 6 and 30 by using the same formula

\sqrt{6*30} = \sqrt{180} = 13.41

4 0
2 years ago
Please help. <br> Giving 20 points.
Nataly_w [17]

The sample size is the number of people.

You can get the sample size by counting the completion times for each.

Sample size of men = 19

Sample size of women = 34


The mean time is the average time, so you need to add all the times for the men and divide it by the number of men and then the same for the women:


Mean time for men = 3129 / 19 = 164.68 seconds

Mean time for women = 5834 / 34 = 171.59 seconds.

The mean time taken by men is less than the women.



6 0
3 years ago
What is the domain of the function y=2 sqrt x-5?
Irina-Kira [14]

Answer:

x greater than or equal to 5

4 0
3 years ago
Find three consecutive odd integers such that six times the second decreased by twice the first is equal to twenty more than the
Kitty [74]
Let
x--------> the first <span>odd integer
x+2-----> </span>the second odd integer
x+4-----> the third odd integer

we know that
6(x+2)-2x=20+(x+2)+(x+4)
6x+12-2x=26+2x
4x-2x=26-12
2x=14
x=7

the answer is 
the numbers are
7, 9 and 11
6 0
2 years ago
PLEASE SOMEONE HELP ME I WILL MARK YOU AS BRAINLIEST IF YOU CAN EXPLIAN THE PROCEDURES YOU DID anyways too guys can you please g
iren2701 [21]
If you are finding the sample space see if it is biased or not. and if it population then find the experimental or theoretical.
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