MATHEMATICS HIGH SCHOOL

Help, please. I really need help one this

Answers

Answer 1

Answer:

Answer:

2#) 20f+15-2f

18f+15

2#) choose 1

3#)60-3h-9

51-3h —> 3(17-h)

3#)choose 1

4#) 4(5x+3y)

20x+12y

4#)choose4

5#) r+3r+ _=6r

6r-4r= 2r

5#)choose4

Only point (1 )I didn't know I'm sorry

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Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.A rocket is launched from atop a 76-foot cliff with an initial velocity of 135 ft/s. A.) Substitute the values into the vertical motion formula h=-16t^2+vt+c. Let h=0 B.) Use the quadratic formula find out how long the rocket will take to hit the ground after it is launched. Round to the nearest tenth of a second. 1.)0= -16t^2 + 135t + 76; 0.5 s 2.)0= -16t^2 + 135t + 76; 9 s
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Help me guy and gals

ok the 100 point question is... if i am walking to work at 6:00 and it takes me three hours to get there, and jimmy walks to the same place of work two hours later at 8:00 walking two mph faster than me, what time did i get to work?

Answers

9:00 tricky question also

ok so at 6:00, you start walking. It takes me 3 hours to get there
6+3=9
you got there at 9:00
no idea what the jimmy buisieness is

A teacher buys pizza for her class. There are 5 pizzas, each with 8 slices. If she has 25 students, how many slices of pizza does each student get?Group of answer choices

Answers

There are 40 slices pratap and 25 kids. 40/25 is 1.6 meaning each student can only get one slice because not everybody could get two

I don’t even knowwww

The golfer hits the golf ball. The quadratic y=-8*x^2 +48*x gives the time x seconds when the golf ball is at height 0 feet. In total, how long is the golf ball in the air?

Answers

$y=-8\cdot x^2 +48\cdot x =-8x(x-6)\n \n-8x(x-6)=0\ \ \ \Leftrightarrow\ \ \ -8x=0\ \ \ \vee\ \ \ x-6=0\n \n.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=0\ \ \ \ \ \ \ \ \ \ \ \ \ \ x=6\n \n Ans.\ the\ golf\ ball\ is\ in\ the\ air\ 6\ seconds.$

A and B share the cost in a ratio of 3:2 . The cost is ?85; how much does A pay?

Answers

Answer:

The amount of money A pays is $\$51$

Step-by-step explanation:

Let

x-----> amount of money A pays

y-----> amount of money B pays

we know that

$x+y=85$ ------> equation A

$(x)/(y)=(3)/(2)$

$y=(2)/(3)x$ ------> equation B

substitute equation B in equation A and solve for x

$x+((2)/(3)x)=85$

$(5)/(3)x=85$

$x=85*3/5=\$51$

How old am I if 400 reduced by 2 times my age is 244? (answer with steps)

Answers

400 reduced (minus) 2 times my age (2x) is 244 (= 244).

400 - 2x = 244 Subtract 400 from both sides
-2x = -156 Divide both sides by -2
x = 78

I am 78 years old.

HELP PLS THIS IS A TEST QUESTION Which linear inequality is represented by the graph?
y<1/2x+2
y>1/2x+2
y<1/3x+2
y>1/3x+2

Answers

Answer:

y<1/2+2

Step-by-step explanation:

Answer:

I think the answer is A because I learned about slope last year

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