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Damm [24]
3 years ago
8

3 distance questions:

Mathematics
1 answer:
zhuklara [117]3 years ago
7 0
This one actually made me think. I like your teacher.

2h 30min (2.5)×30mph=75m
1h 30min (1.5)x50mph=75m

1 hour longer when driving to Arkansas

______________________________


11h 12min (11.2)×300mph=3360m
4h 48min (4.8)×700mph=3360m


11h 12min from NY to Paris.
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Can someone please do this substitution method question with the working out.
timurjin [86]

Answer:

Step-by-step explanation:

T = \frac{1}{2}m^{2}+2m - 4\\\\T = 2m + 4\\\\\frac{1}{2}m^{2}+2m - 4 = 2m + 4\\\\\frac{1}{2}m^{2}+2m - 4 - 2m - 4 = 0

Combine like terms

\frac{1}{2}m^{2}+2m - 2m - 4 - 4 = 0\\\\\frac{1}{2}m^{2} - 8 = 0\\\\\frac{1}{2}m^{2} =8\\\\m^{2} = 8*2\\\\m^{2} = 16\\\\m = \sqrt{16}

m = ± 4

6 0
3 years ago
Find the measure of the angle indicated
Grace [21]

Answer:

86

Step-by-step explanation:

y + 28 + 58 = 180

y + 86 = 180

y = 180 - 86

y = 94

x + y = 180

x + 94 = 180

x = 180 - 94

x = 86

6 0
3 years ago
What is the m for this slope?
Lerok [7]

Answer: -1/4

Step-by-step explanation:

Slope=rise/run

We rise 1 up

We run 4 to the left (making it negative)

8 0
3 years ago
Read 2 more answers
23 students are making smiley faces from macaroni noodles. The teacher got a box of macaroni’s that has 276
drek231 [11]

Answer:

12 noodles

Step-by-step explanation:

If each child is given x amount of noodles, and there are 276 noodles to split among 23 students, set up the equation as seen below:

276÷23=12

276 noodles divided by 23 children = 12 noodles per child.

3 0
3 years ago
What is the domain of the given function?
EleoNora [17]

Answer:

domain is equal to x. therefore, the domain is all of the x values. x = -6,-1,0,3

Step-by-step explanation:

8 0
3 years ago
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