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mestny [16]
3 years ago
7

(Class 11 Trigonometry)step by step explanation needed​(will mark brainliest if it helps me)

Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0

Answer:

Please refer the attachment

(it written by me)

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25z+85=90 whats the answer ?
TiliK225 [7]

Answer:

z = 1/5

Step-by-step explanation:

5 divided by 25 is 20 percent and in fractions its 1/5

3 0
3 years ago
a volley ball player servers the ball. The ball follows a path given by the equation y=-0.01x^2+0.5x+3 where x and y are measure
dolphi86 [110]

Answer:

(a)

Distance from player should be 13.82 feet or 36.2 feet

(b)

The ball will go over the net

Step-by-step explanation:

we are given

The ball follows a path given by the equation

y=-0.01x^2+0.5x+3

where

x and y are measured in feet and the origin is on the court directly below where the player hits the ball

(a)

net height is 8 ft

so, we can set y=8

and then we can solve for x

8=-0.01x^2+0.5x+3

8\cdot \:100=-0.01x^2\cdot \:100+0.5x\cdot \:100+3\cdot \:100

800=-x^2+50x+300

-x^2+50x-500=0

x^2-50x+500=0

we can use quadratic formula

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

x=\frac{-50\pm \sqrt{50^2-4\left(-1\right)\left(-500\right)}}{2\left(-1\right)}

x=5\left(5-\sqrt{5}\right),\:x=5\left(5+\sqrt{5}\right)

x=13.82,x=36.2

So, distance from player should be 13.82 feet or 36.2 feet

(b)

we can plug x=30 and check whether y=8 ft

y=-0.01(30)^2+0.5(30)+3

y=9ft

we know that

height of net is 8 ft

so, the ball will go over the net


5 0
3 years ago
Help me on this i hate math and i don't understand bc i have to do this ASAP
Leto [7]

Scholar #2 is correct. You take 15=-3m-18+5m-7 and combie like terms. Which will leave you with 15=2m-25. You will simplify from there, getting 20=m.

7 0
3 years ago
Read 2 more answers
Find m2 ROL if<br><br> m2 ROC = 31° and<br><br> m2 COL = 52°<br><br> 0<br><br> L
Tamiku [17]

Answer:

<h3>83°</h3>

Step-by-step explanation:

Given the parameters

m2 ROC = 31° and

m2 COL = 52°

According to the diagram in the attachment;

m2 ROL =  m2 ROC + m2 COL

Substitute the given values into the expression as shown;

m2 ROL= 31°+52°

m2 ROL = 83°

8 0
3 years ago
Sarah and her friends laid down two beach blankets. The blankets are the same length but of different widths. The distributive p
Masja [62]

Answer:The width of the orange blanket is 23 inches.

Step-by-step explanation:

The total of both lengths is 75.We know  that the green blanket is 52 so 75-52 = 23 which is the width of the orange blanket

7 0
3 years ago
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