MATHEMATICS HIGH SCHOOL

Which is an expression to find the speed in m/s? d = 100 m, t = 20 s

A. 100 - 20


B. 100 + 20


C. 100/20


D. 100 x 20

Answers

Answer 1
Answer: C. 100/20
 This is because the formula to finding speed is distance divided by time.
Answer 2
Answer:

Answer:

100/20

Step-by-step explanation:

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For the function f(x) = –(x + 1)^2 + 4, identify the vertex, domain, and range. a. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≥ 4. b. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≤ 4. c. The vertex is (1, 4), the domain is all real numbers, and the range is y ≥ 4. d. The vertex is (1, 4), the domain is all real numbers, and the range is y ≤ 4.

Consider a rectangle with width of x units and an area of 10 square units. The length l of the rectangle can be modeled by the function f (x) = StartFraction 10 Over x EndFraction.

Answers

Answer:

When we have a rectangle of width W and length L, the area of this rectangle can be calculated as:

A = W*L

In this case we have:

W = x

L = 10/x.

Then the area of the rectangle will be:

A = W*L = x*(10/x) = 10

So the value of x cancels in the equation, which means that we can not find the value of x.

Now, as L = 10/x we can find some restrictions:

if x = 0, we would have L = 10/0

So we can not have x = 0.

And as W = x, this represents a positive measure, we also have that x can not be a negative number.

So the relation:

W = x

L = 10/x

Gives us all the possible combinations of width and length such that the area of the rectangle is exactly 10 square units.

Answer:

third graph

Step-by-step explanation:

How long will money in savings take to double at 5% interest compounded annually? Round the answer to the nearest hundredth of a year.

Answers

For a single payment with compound interest, the equation to use is F=P(1+i)^n where F is the value after n periods, P is the present value, and i is the interest rate. 

If we want the final value F to double given 5% per year interest, F=2P then i=5.

Solving for n:

2P=P(1+0.05)^n
2=(1.05)^n
log(base 1.05)2=n
n=14.206=14.21 years

Which expression is equivalent to (3x^2+4x-7)(x-2)A.x(3x^2+4x-7)+2(3x^2+4x-7)
B.(3x^2+4x-7)(x)+(3x^2+4x-7)(-2)
C.x(3x^2+4x-7)-2
D.2x(3x^2+4x-7)

Answers

Answer:

B. (3x^2+4x-7)+2(3x^2+4x-7) Is your answer

Step-by-step explanation:

Answer:

I got B on apex

Step-by-step explanation:

There are many cylinders with a height of 9inches. Let r represent the radius in inches and v represent the volume in cubic inches what belongs in cell A

Answers

Complete question :

There are many cylinders with a height of 9 inches. Let r represent the radius in inches and V represent the volume in cubic inches.

a. Complete the table relating the radius and volume of cylinders with height 9 inches. Write each volume as a multiple of , or round to the nearest cubic inch.

Answer:

A = 9π in³

B = 36π in³

C = 81π in³

Step-by-step explanation:

Radius, r = 1, 2, 3

Height of cylinder = 9

Volume, V of cylinder : πr²h

For, r = 1

V = π(1)²9 = 9π in³

For, r = 2

V = π(2)²9 = 4*9π in³ = 36π in³

For r = 3

V = π(3)²9 = 9*9π in³ = 81π in³

Solve and graph the inequalities
100x-200>50x-75

Answers

100x - 200 > 50x - 75

100x - 50x > -75 + 200

50x > 125

x > 2,5

Good Luck

A young sumo wrestler decided to go on a diet yo go on a special high protein diet to gain weight rapidly.he started at 90 kilograms and gained weight at a constant rate.after 8 months ,he weighed 138 kilograms

Answers

From the information given, the mathematical equation (or slope formula) for this situation is given as: y=6x+90

What is the explanation for the above answer?

It is important to state that points of the slope are: (0,90). This is so as the Y intercept is taken as the Sumos weight.

Given that after 8 months, the sumo wrestler weighed 138kg

Hence, (138/90 - 8/0, with the 138 and 8 being the numerator)

= 48/8

= 6

Given that the slope = 6); and

the y intercept = 90

Hence, the slope intercept equation y = 6x+90

Learn more about slopes at;
brainly.com/question/3493733
#SPJ6

Answer:

y=6x+90

Step-by-step explanation:

y=6x+90

use the slope formula with the points (0,90) because this is the y intercept, the sumos weight

after 8 months, the sumo restler weighed 138 (8,138)

solve that with the slope formula (138/90 - 8/0, with the 138 and 8 being the numerator)

then, you get 48/8

thus, 6, like the answer above me said.

however, the answer is incomplete as it asks for it in the equation form

thus since we know the slope (6) and the y intercept (90), format in slope intercept form- = y=6x+90

hope this helps!
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