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VARVARA [1.3K]
3 years ago
7

Can somebody please help me with all of this please. I will give you brainliest if you help and don’t force me to give you brain

liest.

Mathematics
1 answer:
motikmotik3 years ago
6 0

Answer:

Step-by-step explanation:

He took a rest from driving at 4pm. That is proved through there being no change in the number of miles from 4pm to 5pm.

He covered 50 miles from 1pm-2pm and 3pm-4pm. 175-125=50 and 250-200=50.

I am not sure about the answer to part c but it is not iii, so it is either i or ii.

I also do not believe it is i because you can calculate his speed from the given information on the graph so if I were you I would circle ii.

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Factorize 225-49<br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20" id="TexFormula1" title=" {x}^{2} " alt=" {x}^{2}
erica [24]

225-49x^2

-49x^2+225

=(7x+15)(-7x+15)

7 0
3 years ago
Read 2 more answers
EMERGENCY! PLEASE HELP! Prism A &amp; Prism B are similar.  The volume of prism A is 648 mm^3.  If the scale factor of Prism A t
garik1379 [7]

Answer:

1944 mm^{3}

Step-by-step explanation:

4 0
3 years ago
Gerry thinks that the points (4,2) and (−1,4) form a line perpendicular to a line with slope 4. Do you agree? Why
faust18 [17]

Answer:

The answer to your question is these lines are not perpendicular.

Step-by-step explanation:

Data

A (4, 2)

B (-1, 4)

slope = m = 4

Perpendicular lines mean that these lines cross and form an angle of 90°. Also, the slope of perpendicular lines is negative reciprocals.

Process

1.- Find the slope of the second line and compare it to the slope given.

slope = \frac{y2 - y1}{x2 - x1}

Substitution

slope = \frac{4 - 2}{-1 - 4}

Simplification and result

slope = \frac{-2}{5}

-2/5 is not a negative reciprocal of 4, so these lines are not perpendicular.

4 0
3 years ago
The formula for the circumference of a circle is C = 2 pi r. Determine the circumference when the radius r is 10 cm.
liq [111]

Answer:

D 100cm

Step-by-step explanation:

6 0
3 years ago
PLS HELP ME.... I DONT UNDERSTAND THIS....
IrinaK [193]

Answer:

<em><u>M(-2,-6)</u></em>

y-axis (-2,6)

x-axis (2,-6)

<u><em>N(4,1)</em></u>

y-axis (4,-1)

x-axis (-4,1)

Step-by-step explanation:

When the point is reflected across the x-axis then the y value will change signs.

When the point is reflected across the y-axis then the x value will change signs

4 0
3 years ago
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