The area of a circle is 18.31cm2.
find the length of the radius rounded to 2 dp.

Answer:

603.185789 m2

Step-by-step explanation:

603.185789 m2 or 192 π m2

formula is  [tex]3\pi r^2[/tex]:

3 x  pi x 8^2 = 603.185789489

Answer:

1) 19³=6859

2) 16² =256

3) 15³ =3375

4) 20² =400

5) 10³ =1000

Step-by-step explanation:

using your calculator to (square = number times itself) or (cube = number times itself times itself again)

Answer:

Step-by-step explanation:

ohn will need to sleep for 10.3 hours before his second exam so that the

he average of his two exam scores is an 80.

We were given

8 hours of sleep = 70

To get an average of 80

70+ x = 80

2

Cross multiply:

70+x = 160

x= 160-70

= 90.

If 8 hours of sleep = 70

x hours of sleep = 90

Cross multiply

8× 90 = 70 × x

720 = 70x

x = 720/70

x = 10.2857

≈ 10.3 hours of sleep

Answer:

1

Step-by-step explanation:

3/7 divided by 3/7 is nothing but

3/7 times 7/3 because of the keep, change, flip rule.

3/7 times 7/3 is nothing but 21/21

21/21 simplifies to 1/1

1/1 = 1

give brainliest please!

hope this helps :)

Step-by-step explanation:

the volume of any cube or prism is

length × width × height (or depth)

11.1 = 2.8 × 1.2 × depth

depth = 11.1 / (2.8 × 1.2) = 11.1 / 3.36 = 3.303571429 ft

≈ 3.3 ft

Answer:

No but on a calculator it will just be rounded up. If 0.99999 was 1, maths would be pretty much useless.

Answer:

no the value tends to go to 1 but it is not exactly one.

2 ft by 6

Dure hope this helps you

Answer: 2ft by 6

hope this helps

Answer:

2 1/6

Step-by-step explanation:

The answer is 2 1/6 because you should start by adding 3 1/2 + 2 1/3. This equals 5 5/6 feet. You should then subtract 8 - 5 5/6 because you are figuring out how much is left. When you subtract 8 - 5 5/6, you get 2 1/6. So 2 1/6 feet of the board is left.

Hope this helps!

Answer:

  n² -3

Step-by-step explanation:

The square of a number is found by multiplying it by itself. The square of a number in an algebraic expression is shown using an exponent of 2. For a number represented by n, the square of the number is n².

3 less than a number is found by subtracting 3 from the number. Equivalently, it is found by adding -3 to the number. The addition can be done in any order. For a number represented by n, 3 less than the number is either of ...

  -3 +n

  n -3

__

The expression for "3 less than the square of a number" is ...

  n² -3 . . . . . where n represents the number

It can also be written ...

  -3 +n²

We generally prefer the first form, with variable exponents decreasing left-to-right.

[tex]~~~~~~6x-21 > 5\\\\\implies 6x > 5+21\\\\\implies 6x > 26\\\\\implies x > \dfrac{26}6\\ \\\implies x > \dfrac{13}{3}\\[/tex]

diameter of the cone=15.8inches

Answer:

The probability is the same.

Step-by-step explanation:

The chances of rolling a 3 with one die is 1/6. The chances of rolling a 6 with 2 dice is 2/12.

Answer: (-2, 1)

Step-by-step explanation:

The 1st value in a pair is x, the 2nd is y.

▪︎ (-2, 1)

1 = 2(-2)+5

1 = -4+5

1 = 1 ✅

▪︎ (-1, 4)

4 = 2(-1)+5

4 = -2 + 5

4 = 3❌

▪︎ (1, 6)

6 = 2*1+5

6 = 2 + 5

6 = 7❌

▪︎ (3, 10)

10 = 2*3+5

10 = 6 + 5

10 = 11❌

If you replace the outlier of 113°F with 100°F, the the range changes from 42 degrees to 29 degrees.

In the case above, by  replace the outlier of 113°F with 100°F, IQR will not change due to the fact that the q1 and q3 values are not influence by the outlier.

But the range will change from 42 degrees to 29 due to the fact that

113 - 71 = 42 and

100 - 71 =  29

Therefore, If you replace the outlier of 113°F with 100°F, the the range changes from 42 degrees to 29 degrees .

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Answer:

25m/s

Step-by-step explanation:

distance = 30km = 30× 1000m

time = 20 min = 20 × 60 = 1200sec

we know,

speed = distance/time taken

= 30000/1200

= 25m/s

Answer:

24 units ^2

Step-by-step explanation:

The base runs from 3 to 7 so the base is 7-3 = 4 units

The height runs from 2 to 8  so the height is 8-2 = 6 units

The area is

A = bh

   = 6*4 = 24 units ^2

The number of games Ben predict Orioles will win this year is 64 games

Number of games Ben predict they will win = 40% of 160

= 40/100 × 160

= 0.4 × 160

= 64

Therefore, the total number of games Ben predict they will win is 64 games

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Answer:

[tex] R = \dfrac{PV}{nT} [/tex]

Step-by-step explanation:

[tex] PV = nRT [/tex]

[tex] nRT = PV [/tex]

[tex] R = \dfrac{PV}{nT} [/tex]

Answer:

9 yards

Step-by-step explanation:

Length of missing leg = √ Hypotenuse² - Adjacent side²

b = [tex]\sqrt{15^{2} - 12^{2} } \\\sqrt{225 - 144} \\\sqrt{81} \\[/tex]

b = 9 yd

Answer: 78

Step-by-step explanation:

6(4+9)

use foil to distribute the 6 to the 4 and 9

6×4 + 6×9

24 + 54

⇒ 78

The first step is constructing an angle bisector for one of the angles of the triangle.

We have to find the first step for the constructing an inscribed circle

The incenter of a triangle is the point from which the distances to the sides are equal, in this point we can start to construct the inscribed circle in the triangle because the incenter would also be the center of the circumference.

Therefore the first step in constructing an angle bisector for one of the angles of the triangle.

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Answer:

Construct the angle bisector of angle Y.

Step-by-step explanation:

I just took the test and got the answer correct :)

Answer:

M =290

Step-by-step explanation:

Subtraction of numbers

At 3:30 pm

the minute hand was at 6 and hour hand was in between 3 and 4

At 4 pm

the minute hand is at 12 and hour hand is at 4

Total numbers travelled by minute hand

Total degrees turn

The probability of randomly selecting a cat or dog is P(cat or dog) = P(cat) + P(dog)

Since we cannot select a cat and dog at the same time, their probabilities are mutually exclusive

If we have events a and b which are mutually exclusive with probabilities P(a) and P(b) respectively, the probability of a or b is P(a or b) = P(a) + P(b)

Let

So, probability of randomly selecting a cat or dog is

P(cat or dog) = P(cat) + P(dog)

So, probability of randomly selecting a cat or dog is P(cat or dog) = P(cat) + P(dog)

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Answer:

raise ^that 4 to the power of -1+2 like this

raise ^to the power -2 like this

5-2=3 <Awnser

Answer:

first multiply numbrrs3*2=6ab

Answer:

7.5 sq. un

Step-by-step explanation:

Hello!

The height is 3 units, the base is 4 units, and the other base is 1 unit.

Using the trapezoid area formula, [tex]A = \frac12(b_1+b_2)h[/tex],  we can plug the values in and solve.

Solve:

The area is 7.5 sq. un

Answer:

Step-by-step explanation:

You can graph the inequality by...