A student scores 60% on a 70 question test. What is the ratio of the actual number of questions answered correctly to the actual total number of questions?
A. 42 : 70
B. 28 : 70
C. 3 : 5
D. 60 : 100

Answer:

Step-by-step explanation:

Answer:

Nuclear Fusion is the cleanest.

Step-by-step explanation:

The following advantages make fusion worth pursuing. Abundant energy: Fusing atoms together in a controlled way releases nearly four million times more energy than a chemical reaction such as the burning of coal, oil or gas and four times as much as nuclear fission reactions (at equal mass).

Answer: 12

Step-by-step explanation:

Answer:

Step-by-step explanation:

-1/2 is a rational number but not integer

6.66.. is an irrational number

-2 is an integer

-sqrt3 is an irrational number

150 is an integer

Answer:

its B

Step-by-step explanation:

if u multiply 18x10 =180x12=2,160

Answer:

Step-by-step explanation:

the second option.

Answer:

Domain: (-3,1]

Range:  [-4,0]

x-intercepts: -3, 0

y-intercepts: 0

Answer:

R =  [-4,0]       X = -3, 0     Y = 0

Step-by-step explanation:

We already know the domain.

Range : [-4,0]   Since the line doesn't go beyond 0.

x-intercept : -3, 0

y-intercept : 0

Answer:

y = 5x - 8

Step-by-step explanation:

The linear equation in slope intercept form :

y = mx + c

m = slope ; c = intercept

m = Rise / Run = (y2 - y1) / (x2 - x 1)

Rise = (y2 - y1) = (12 - (-8)) = (12 + 8) = 20

Run = (x2 - x1) = (4 - 0) = 4

Slope, m = Rise / Run = 20 /4 = 5

Hence,

y = 5x + c

For the points ; y = 12 ; x = 4 ; we could obtain c

12 = 5(4) + c

12 = 20 + c

12 - 20 = c

-8 = c

The equation becomes :

y = 5x - 8

Answer:

(1,5) is the answer

Answer:

15/100 x 35 = $5.25

Of means multiplication

Always consider a percent as a fraction but it has to be out of 100.

A way to remember that is that the word "cent" means 100. So you multiply the two numbers (divide at the end 21/4 = 5.25)

Answer:

Calculation:

First, converting R percent to r a decimal

r = R/100 = 8%/100 = 0.08 per year,

then, solving our equation

I = Prt (Where p=principle,r=rate,t=time)

I = p*0.08*1=0.08p

Step-by-step explanation:

Bo should multiply his current amount by 1.08 to get the complete balance in one step.

Simple interest is defined as interest paid on the original principal and calculated with the following formula:

S.I. = P × R × T, where P = Principal, R = Rate of Interest in % per annum, and T = Time, usually calculated as the number of years. The rate of interest is in percentage r% and is to be written as r/100

We have been given that Bo invests money in an account paying a simple interest of 8% per year.

To find the total balance in a year, you can use the formula:

balance after 1 year = balance × (1 + (interest rate/100))

In this case, the interest rate is 8%, so you can use the formula like this:

balance after 1 year = balance × (1 + (8/100))

This simplifies to:

balance after 1 year = balance × 1.08

Therefore, to find the total balance in one step, Bo should multiply his current balance by 1.08.

Learn more about the simple interest here:

brainly.com/question/22621039

#SPJ2

Answer:

Below.

Step-by-step explanation:

F(x) = (x - 20)(x + 20)

f(x) = x^2 - 400     This opens upwards.

If it opens down we have:.

f(x) = -(x - 20)(x + 20)

f(x) = -x^2 + 400.

Answer: C for sure

just did it

Answer:

C- 113m^2

Step-by-step explanation:

The area of a circle formula is A= [tex]\pi[/tex]r^2, so that equates to

A= [tex]\pi[/tex]6^2

[tex]\pi[/tex]36

3.14(36)

113.04, round it to 113

Answer:

im pretty sure its -2x but i might be wrong

Step-by-step explanation:

Answer:

1)f(-3)=-3f

2)f(-2)=-2f

3)m(-1)=-m

4)g(x)+h(x)=gx+hx

5)g(x)-h(x)=gx-hx

6)h(x)+3k(x)=h=3k

7)2j(x)=2jx

8)f(x).g(x)=gxf(x)

9)f(x).k(x)=kxf(x)

Step-by-step explanation:

Step-by-step explanation:

por fa si les ayude voten por mi

Answer:

x = 3

Step-by-step explanation:

Answer:

4 = dt

I hope this helps

Sorry if it's wrong

Answer:

tan(A) = 5/12

Step-by-step explanation:

Tan = opp/adj

opp= 5

adj = 12

Answer:12/13

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

3*5

Answer:

26m - (11m) 4m

Step-by-step explanation:

9514 1404 393

Answer:

  30.3 in

Step-by-step explanation:

The applicable relation between angle (θ), radius (r), and arc length (s) is ...

  s = rθ . . . . . . where θ is in radians

We have ...

  75 in = x(142(π/180))

Solving for x, we get ...

  x = (75 in)(180/142)/π ≈ 30.262 in

The radius of the circle is about 30.3 inches.

Answ

what is this for

Step-by-step explanation:

A cuboid with side lengths x, x and h has a surface area of

S=2x2+4xh.

We know that the total surface area should be 150cm2, so

150⟹150−2x2⟹h=2x2+4xh=4xh=75−x22x.

This is because

tan(angle) = opposite/adjacent

For the reference angle 38, we have 10 as the opposite side and x as the adjacent side.

Therefore, tan(38) = opposite/adjacent = 10/x

Side note: if you solve for x, you should get roughly x = 12.799

Answer:

1. it is 7 cm long

2. it is a chord

3. it is the diameter of the circle

Step-by-step explanation:

Here, we want to select three statements that are true about CB

From what we have, CB runs from one edge to the other, passing through the center of the circle

Also, as we can see, AD is a radius as it is the distance from the center of the circle to the circumference; CB is twice this as it is the diameter

The diameter is a chord that passes through the center of the circle and it is a radius

So let us select the correct statements;

1. it is 7 cm long

2. it is a chord

3. it is the diameter of the circle