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3 years ago

Help easy math problems!!!!

Mathematics

1 answer:

fiasKO [112]3 years ago

3 0

Answer:

49.45

Step-by-step explanation:

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Suppose a tennis player hits a ball over the net. The ball leaves his racket 0.5m above the ground. The equation h = -4.9t2 + 3.

garik1379 [7]

Whats the bloody question

5 0

3 years ago

Which equations correctly represent a line that has a slope of -2/3 and passes through the points (–2, 8) and (1, 6)?

OlgaM077 [116]

Answer:

2x + 3y = 20

Step-by-step explanation:

Slope of the line is -2/3 . We can use any of the given points to find the equation of the line. Lets use (1, 6)

The general point-slope form of a line is:

$y-y_{1} =m(x-x_{1} )$

Here m is the slope which is -2/3

x1 and y1 are the coordinates of the point. So x1 = 1 and y1 = 6

Using these values, we get:

$y-6=-\frac{2}{3} (x-1)\\\\ 3(y-6)=-2(x-1)\\\\ 3y-18=-2x+2\\\\ 2x+3y=20$

6 0

4 years ago

Read 2 more answers

Essential: Solve the proportions<br> step by step

vazorg [7]

Answer:

The value of r= $\frac{-106}{47}$

The value of x= $\frac{83}{32}$

Step-by-step explanation:

Given that,

A) $\frac{2r-2}{7r+10} = \frac{9}{8}$

Now,

$\frac{2r-2}{7r+10} = \frac{9}{8}$

8(2r-2)=9(7r+10)

16r-16=63r+90

-16-90=63r-16r

-(16+90)=47r

-106=47r

r= $\frac{-106}{47}$

B) $\frac{x+4}{9} = \frac{3(x-2)-1}{5}$

Now,

$\frac{x+4}{9} = \frac{3(x-2)-1}{5}$

5(x+5)=9[3(x-2)-1]

5x+25=9[3x-6-1]

5x+25=9[3x-7]

5x+25=27x-63

25+63=27x+5x

83=32x

x= $\frac{83}{32}$

6 0

4 years ago

What is the value of 0.1561 rounded to the nearest tenth?

Karo-lina-s [1.5K]

Hi!
So the nearest tenth is the number right after the decimal. We are looking at 5 to see if we round up or down.
The rule is that if the number is less than 5 you round down or leave the number that's already before it. If it is 5 or above, you round one point above(in some cases, others it can be more)
The number after the first 1 is 5 and so you round up.
Your answer is 0.2
hope this helps!

6 0

4 years ago

Read 2 more answers

Together teammates pedro and ricky got 2685 base hits last season. Pedro had 277 more than ricky. How many hits did each player

Ksju [112]

Let x be the number of base hits Ricky got. With this representation, the number of base hits Pedro got is x + 277. The sum of their number of hits is equal to 2685. The equation that best represent the scenario is,
x + x + 277 = 2685
The value of x is 1204. Therefore, Ricky got 1204 and Pedro got 1481.

3 0

3 years ago