Mathematics College

Need help on this please

Answers

Answer 1

Answer:

157.08m²

Step-by-step explanation:

Since the area of a circle is A=πr²

The radius is 10, so

A=π10²

A=314.16 (rounded to nearest hundredth)

Half of that is 157.08.

Related Questions

Through (4,-4) parallel to y=3

Answers

Answer:
y = -4

Explanation:
The graph of y = 3 is horizontal.

The slope must be 0 for a line to be horizontal, and thus parallel to y=3.

In slope-intercept form (y = mx + b), “m” is the slope, “b” is the y-intercept.
When the slope, m = 0, the equation becomes y = b.

Point (4,-4) is written (x, y).
y = -4

Since y = b, b = -4.

Therefore, the equation is y = -4.

Answer:

y = -4

Step-by-step explanation:

Because y = b, b = -4, the equation would be written as y = -4.

a wildlife photographer photographs a crocodile and then paddles against a river current for 6 km. Then, hoping to photograph a hippopotamus, she paddles 15 km across a lake. She paddles across the lake for one hour longer than she paddled up the river. find the speed of the boat as she paddles the lake if the river current is 2 km/h. Pls answer. You'll get 100 points.

Answers

Answer:

5 km/h or 6 km/h

Step-by-step explanation:

Let the speed of the boat be xSpeed against the current in the river is x - 2

Time in the river:

6/(x - 2)

Time in the lake:

15/x

The difference:

6/(x - 2) = 15/x - 1

Solve for x to find the speed of the boat

Multiply both sides by x(x - 2) to clear the fraction:

6x = 15(x - 2) - x(x - 2)6x = 15x - 30 - x² + 2xx² - 11x + 30 = 0(x - 5)(x - 6) =0x -5 = 0, x - 6 = 0x = 5 km/h, x = 6 km/h

Answer:

5km/hr or 6km/hr

Step-by-step explanation:

The population of a school is 800 students and is increasing at a rate of 3% per year. How many students will be there in 6 years?

Answers

Answer = 955

At a constant rate of 3% year over year their would be 955 students after 6 years

what is the difference between 1 and o.1978

Answers

Answer:

0,8022

Step-by-step explanation:

guess it helped

Can someone solve this please

Answers

Answer:15. 5/8 = 0.625

The distance between the points J=(4, -2) and E = (7. – 7) in the coordinate plane is 6.

What is coordinate plane ?

"A coordinate plane is a two-dimensional plane formed by the intersection of two number lines. One of these number lines is a horizontal number line called the x-axis and the other number line is a vertical number line called the y-axis. These two number lines intersect each other perpendicularly and form the coordinate plane.

The plane is called two-dimensional because anywhere on this plane where you can put your finger, the location of that point will need two things– its distance on the x-axis and its distance on the y-axis."

Using the distance formula between the points

Given, J = (4,-2) and E = (7,-7)

Distance formula = [tex]\sqrt((x1 - x2)^2 -(y1 - y2)^2)[/tex]

[tex]= \sqrt((4-7)^2 + (-2 - (-7))^2)\\\\= \sqrt(9 + 25) = 6[/tex]

Hence, distance between the points J and E = 6

To know more about coordinate plane here:

https://brainly.com/question/13611766

#SPJ3

(a) Write the ratio 32 : 80 in its simplest form

Answers

Answer:

Therefore, 32/80 simplified to lowest terms is 2/5.

A wire is attached to the top of a tower and to a point on the ground that is 35 m from the base of the tower. If the wire makes a 65 degree angle with the ground, how long is the wire? Round your answer to the nearest tenth

Answers

Answer:

83 m

Step-by-step explanation:

The computation of the length of the wire is shown below:

Let us assume the length of the wire be x

Given that

There is 35m from the base of the tower

And, the angle with the ground is 65 degree

So, the length of the wire is

cos 65 = 35 ÷ x

x = 35 ÷ cos 65

= 83 m

Does this look right? Explain why

5/6

6.565656…

0.23

-5 3/8

Answers

Answer:

Yes

Step-by-step explanation:

Yes ,a rational number is a number that can be expressed as a fraction. Repeating and terminating decimal are rational number so

5/6 is right since it is a fraction

6.565646 is right since it is a repeating decimal

0.23 is right since it is a terminating decimal

-5 3/8 is right since it is a mixed number

Sqr root of 11 and 0.32416.... is wrong since it creates multiple random unknown digits

if the figures below are similar give the scale factor of figure a to b,20,17.5,16,14

Answers

Answer:

Step-by-step explanation:

what is the length of segment SA? show your work please I will give you brainliest

Answers

Answer:

SA=3

Step-by-step explanation:

9/11.7=10/x

9x=117

117/9=13

13-10=3

Answer:

3 ft

Step-by-step explanation:

Use ratios:

SB/TB = SA/TC10/9 = SA/2.7SA = 10*2.7/9SA = 3 ft

Find the total amount in Mr. G’s account, if he invests $9000 for 5 years at a 6% interest rate.

Answers

Answer:

20,000

Step-by-step explanation:

for 5 6% at those with division 20,000 together and they would have 20,000

which expression is equivalent to 5* 5 * 5?

Answers

Answer:

three one

Step-by-step explanation:

5*5*5

5 to the power of 3 since 5 and your multiplying it 3 times

Simplify. 2√6−4√24+√96What is the greatest common factor of 12xy^5+60x^4y^2−24x^3y^3?

Answers

Answer:

greatest common factor is 12xy² .

Step-by-step explanation:

A fair dice has six sides, numbered 1 to 6
After it is rolled, five of the numbers can be seen.
a) Write down the probability that one of these five numbers is 3
b) Work out the least possible sum of the five numbers

Answers

(a). The probability that one of these five numbers is 3 is [tex]\frac{5}{6}[/tex].

(b). The least possible sum of the five numbers is 15

Probability:

Probability is the ratio of number of favourable outcomes to the total number of outcomes.

When a fair dice has six sides, numbered 1 to 6 ,After it is rolled, five of the numbers can be seen.

The probability that one of these five numbers is 3 is computed as,

[tex]P(E)=\frac{5}{6}[/tex]

The least possible sum of the five numbers, when the number 6 is hidden.

Least sum = 1 + 2 + 3 + 4 + 5 = 15

Learn more about the probability here:

https://brainly.com/question/24756209

Find the perimeter and area of the figure

Answers

Answer:

Step-by-step explanation:

Perimeter = Add

Area= x

Use this solution to figure the area & Perimeter out.

Answer:

perimeter = 76 ft

area = 338 sq ft

Step-by-step explanation:

the triangle Loom is made from wood strips shaped into a 45 45 90 triangle. pegs are placed every half inch along the hypotenuse and every quarter inch along each leg. suppose you make a loom with an 18 inch hypotenuse. approximately how many pegs will you need

Answers

Answer:

36 pegs (for the hypotenuse)

About 51 pegs (for the legs)

138 pegs (total)

Step-by-step explanation:

Along the hypotenuse, the pegs are placed every half-inch. That would make 2 pegs per inch. Multiply 2 x 18 to get 36.

The legs are each 9 sqrt 2. This is 12.7279220614. The pegs are placed at each quarter inch for the legs. This is 4 per inch. So multiply 12.7279220614 x 4 to get 50.9116882454. Round this to 51.

Add 51 + 51 for the legs total pegs. You get 102. Add 102 + 36 to get 138 pegs total.

Hope it helps!

4.5=2c I need help plz

Answers

Answer:

[tex]c=2.25[/tex]

Step-by-step explanation:

[tex]4.5=2c\\2c=4.5\\c=4.5/2\\c=2.25[/tex]

Swap the sides > =2c=4.5 then divided both sides c=2.25 there’s ya answer

HELP ASAP PLEASE! GIVING AWAY 30 POINTS AND BRAINLIEST!

Answers

Answer:

DB!

Step-by-step explanation:

Question a: 3+3+2+2 = 10 dinners

Question b: 15-30 and 30-45, because most people choose that range.

Hope I helped!

Answer:

a) 10 b) 2-3 dollars

Step-by-step explanation:

a) 3+3+2+2

b) (2+2+3+3)/2 equal 2.5 mean, range between them is 2 to 3

Identify the ‘false’ statement.
a) (-317) < 603
b) (-333) < (-777)
c) 630 > 234
d) 1250 > (-750)

Answers

Answer:

the false statement would be option b) (-333) < (-777).

Step-by-step explanation:

in negative numbers, the smallest negative number would be considered larger when compared to a large negative number. additionally, when you plot these numbers on a number line, it is evident that -333 would be closest to 0, and -777 would be the farthest. thus, -333 is larger than -777.

3. What is slope of the line above?
4. What is slope of the line above?

help!

Answers

The answer is

3.) -1/2
4.) 4/3

Plzzz help me it would mean a lot I willl mark you brainliest if you are right plz and ty

Answers

Answer:

Step-by-step explanation:

x÷3=15

=×*1/3=15

=x=15*3

x=45

Answer:

15 x 3 = 45

So, x = 45

Pls mark the brainliest :)

Step-by-step explanation:

Exercise 2.4.4: Showing a statement is true or false by direct proof or counterexample. About Determine whether the statement is true or false. If the statement is true, give a proof. If the statement is false, give a counterexample. (a) If and are even integers, then is an even integer. Solution (b) If is an even integer, then and are both even integers. (c) If , then . Solution (d) If x and y are real numbers and , then . Solution (e) If and are positive real numbers and , then . (f) The average of two odd numbers is an odd integer. (g) The average of two even numbers is even. (h) The average of two odd numbers is an integer. Solution

Answers

Answer:

Step-by-step explanation:

and ok thats the deal

Help person right gets brainlist

Answers

correct answer is = 3 17/28
brainliest?

P= 3 17/28
If its mixed number

P=3.60714285
If its need to be decimal

Just copy the answer from the pic

Help, please it's due soon?

Answers

9514 1404 393

Answer:

398,765

Step-by-step explanation:

If s represents the number sold to date, the given relation is ...

0.081s = 32300

s = 32300/0.081 ≈ 398,765 . . . . . . divide by the coefficient of s

398,765 copies have been sold to date.

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