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3 years ago

Can someone please help me

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

3 0

Answer:

1/6

Step-by-step explanation:

he has 1 chance to roll 6 different numbers

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Reika [66]

Answer:

Quantitative: i) The number of students in the school vis - a - vis the number of classes in the school. In order words, simply number of students per class

ii) The rate of graduation of students.

Categorical:i) Courses being taken by students

ii) Region of country of students.

Step-by-step explanation:

To answer this question effectively, it's important for us to know that a quantitative variable usually has numerical values, and also have units of measure as well while categorical variables simply places each student into a specific category.

Now, the two quantitative variables we will consider are;

i) The number of students in the school vis - a - vis the number of classes in the school. In order words, number of students per class

ii) The rate of graduation of students.

Also, the two categorical variables we will consider are;

i) Courses being taken by students

ii) Region of country of students

5 0

3 years ago

What is -2+6X= -8. x=

Strike441 [17]

Answer:

$x=-1$

Step-by-step explanation:

So we have the equation:

$-2+6x=-8$

Add 2 to both sides. The left cancels:

$6x=-6$

Divide both sides by 6. The left cancels:

$x=-1$

So, the value of x is -1.

And we're done!

8 0

3 years ago

Read 2 more answers

Exponential 2^2/2^-3

kenny6666 [7]

Answer: 32

Step-by-step explanation:

2^2 is 4

2^-3 = 1/8

and 4/1/8 is 32

3 0

3 years ago

The area of a circle (A) is given by the formula A= pi*r to the second power, where r is the radius. The formula to find r is _.

podryga [215]

Answer:

The correct option for the first blank is A. (A/pi) to the power of 1/2

The correct option for the second blank is A. 4.15

Step-by-step explanation:

1. Let's review the information provided to us to answer the questions correctly:

Area of a circle (A) = π * r², where r = radius

2. The formula to find r is ________________:

A = π * r²

r² = A/π

√r² = √ A/π

r = √A/π

r = A/π∧(1/2) or (A/pi) to the power of 1/2.

The correct option for the first blank is A. (A/pi) to the power of 1/2

3. if A = 54 centimeters squared, and pi = 22/7, r is _ centimeters.

We use the formula we got for the first blank, this way:

r = (A/pi) to the power of 1/2

Replacing with the real values, we have:

r = (54/(22/7)) to the power of 1/2

r = 17.2 to the power of 1/2

r = √17.2 = 4.15 (Rounding to the next hundredth)

The correct option for the second blank is A. 4.15

3 0

3 years ago

jennifer bikes 7 miles south and then turns to bike 13 miles east how far away is she from where she started?

Marina CMI [18]

Answer:

She is about 14.765 miles ( $\sqrt{218}$ miles) from where she started

Step-by-step explanation:

There is a relation between the three sides of the right triangle

The side opposite to the right angle is called hypotenuse and it is the longest side

The other two sides called legs of the right angle

The relation between them is: (hypotenuse)² = (leg1)² + (leg2)²

∵ Jennifer bikes 7 miles south

∵ She turns to bike 13 miles east

∵ South and East are perpendicular

→ That means the distance from her start point to end point represents

a hypotenuse of a right triangle, whose legs are 7 and 13

∴ (hypotenuse)² = (leg1)² + (leg2)², where

hypotenuse is the distance between her start and end points

leg1 is her distance in south direction

leg2 is her distance in east direction

∵ Leg1 = 7 miles

∵ leg 2 = 13 miles

∴ (hypotenuse)² = (7)² + (13)²

∴ (hypotenuse)² = 49 + 169

∴ (hypotenuse)² = 218

→ Take √ for both sides

∴ hypotenuse = $\sqrt{218}$

∴ hypotenuse ≅ 14.76482306

∴ She is about 14.765 miles ( $\sqrt{218}$ miles) from where she started.

3 0

3 years ago