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3 years ago

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? |||||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:

$\dfrac{73}{y}=0.9563$ convert the decimal to the fraction

$\dfrac{73}{y}=\dfrac{9563}{10000}$ cross multiply

$9563y=730000$ divide both sides by 9563

$y=\dfrac{730000}{9563}$

$y\approx76.3359$

8 0

3 years ago