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Vilka [71]
3 years ago
8

Please help me . Need it desperately for a math test

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0

Answer:

Step-by-step explanation:

Given

y = 3x + 2

Comparing with y = mx + c

slope (m) = 3

y-intercept (c) = 2

seropon [69]3 years ago
3 0

The slope in the problem, 'y=3x+2' is 3.

The number next to the x in these equations is always the slope.

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A wall in marcus room is 8 2/5 feet high as 16 2/3 feet long. If he paints 1/2 the wall blue how many square feet will be blue
svlad2 [7]
The answer is 70. Hope this helps!
4 0
3 years ago
if a sprinter runs are distance of hundred metres in 9.83 seconds calculate the speed in kilometre per hour​
My name is Ann [436]

Answer:

98.3 seconds

Step-by-step explanation:

If you use stoichometry you can convert your units

9.83 seconds

over 100 meters    a kilometer is 1000 meters so

9.83/100 *10 because what you do to denominator needs to happen to numerator

98.3 seconds

over 1 kilometer

it take the sprinter 98.3 seconds to run a kilometer and one way to check is well a kilo is a longer distance so logically the time it takes them has to be higher cause they cannot run a kilo faster than they run 1/10 of it

8 0
3 years ago
Choose the polynomial that is written in standard form? <br><br><br> |||||Pictured|||||
Usimov [2.4K]
The 3rd one down is correct
8 0
4 years ago
Read 2 more answers
3. In the figure below, E is on AD and C is on BD. The dimensions given are in meters. What is the length, in meters, of CD?
damaskus [11]

Answer:

C. 3,960

Step-by-step explanation:

∆ADB ~ ∆EDC. Therefore,

\frac{AB}{EC} = \frac{DB}{DC}

\frac{2,000}{1,200} = \frac{2,640 + x}{x} (substitution)

Solve for x

\frac{5}{3} = \frac{2,640 + x}{x}

Cross multiply

5*x = 3(2,640 + x)

5x = 7,920 + 3x

5x - 3x = 7,920

2x = 7,920

x = 7,920/2

x = 3,960 meters

7 0
2 years ago
Find the length of side y
Serggg [28]

Answer:

\large\boxed{y=76.3359\ cm\approx76.3\ cm}

Step-by-step explanation:

Use cosine:

cosine=\dfrac{adjacent}{hypotenuse}

We have

adjacent=73\ cm\\hypotenuse=y

and the angle 17°.

\cos17^o\approx0.9563

Substitute:

\dfrac{73}{y}=0.9563             <em>convert the decimal to the fraction</em>

\dfrac{73}{y}=\dfrac{9563}{10000}          <em>cross multiply</em>

9563y=730000           <em>divide both sides by 9563</em>

y=\dfrac{730000}{9563}

y\approx76.3359

8 0
3 years ago
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