use Mental Math to determine if the circumference of a circle with a radius of 5in will be greater than or less than 30 in write an argument that can be used to justify your solution​

Answers

Answer 1

Answer:

It will be greater than 30.

Step-by-step explanation:

(Any following math is easy to do in your head and therefore mental math.)

In order to find the circumference, you multiply the diameter by pi.

The radius is half of the circumference so if you double the radius you get the circumference.

5 × 2 = 10

The default for pi is 3.14, so it's a little more than 3.

10 × 3 = 30

If just 3 is 30, then anything more ( like the 0.14), will make it over 30.

Brainliest please?  


Related Questions

what is this sphere’s volume? radius is given, please round to nearest tenth

Answers

Answer:

179.59438

rounded to the nearest tenth would be 179.6

Step-by-step explanation:

use this formula

volume = (4/3) · π · r3

What is the measure of the angle?​

Answers

Answer:

it a 90 degree angle hope this helps:)

Step-by-step explanation:

90 degrees. Hope this helps…………

A recipe uses brown sugar and caster sugar in the ratio 3:2. What fraction of the sugar is caster?

Answers

Answer:

2/5 of the sugar is caster sugar

Grandma baked 96 cookies and gave them to her grandchildren. One of the grandchildren, Cindy, received c fewer cookies than she would have received had all of the cookies been evenly divided among the 8 grandchildren.How many cookies did Cindy receive? Write your answer as an expression.

Answers

Answer: 29 cookies.

Step-by-step explanation: 96/8=32       32-3=29        boom. maths.

The number of cookies baked by Grandma= 96

If she divides them evenly amount 8 children, then by division operation the number of cookies received by each child = (number of cookies) ÷ (number of children)

= (96) ÷ (8) = 12

Since, Cindy, received c fewer cookies than she would have received had all of the cookies been evenly divided among the 8 grandchildren.

Hence, the number of cookies received by Cindy = 12-c

Find the exact value of tan 195°.

Answers

[tex]\tan 195^{\circ}\\\\=\tan\left(3 \times 90^{\circ} - 75^{\circ} \right)\\\\=\cot 75^{\circ}\\\\=\left(\tan 75^{\circ} \right)^{-1}\\\\= \textbf{[}\tan \left(30^{\circ} + 45^{\circ}\right) \right \textbf{]}^{-1}\\\\=\left(\dfrac{\tan 30^{\circ} +\tan 45^{\circ}}{1- \tan 45^{\circ} \cdot \tan 30^{\circ}} \right)^{-1}\\\\\\=\left( \dfrac{\dfrac 1{\sqrt 3}+1}{1- \dfrac 1{\sqrt 3}} \right)^{-1}\\\\\\=\left( \dfrac{\sqrt 3+1}{\sqrt 3-1}\right)^{-1}\\\\\\=\dfrac{\sqrt 3-1}{\sqrt 3 +1}\\[/tex]

[tex]=\dfrac{\left( \sqrt 3-1\right)^2}{\left( \sqrt 3+1\right)\left( \sqrt 3-1\right)}\\\\\\=\dfrac{3+1-2\sqrt 3}{3-1}\\\\\\=\dfrac{4-2\sqrt 3}{2}\\\\\\=2-\sqrt 3[/tex]


I neeed hellppppp plissss

Answers

Answer:

I believe C is the closest equation to the graph

Step-by-step explanation:

8. Select the expression that is equivalent to 12/48.

A. 6(8+6)

B. 12(4+1)

C. 4(44+3)

D. 8(6+4)

Answers

Answer:

D

Step-by-step explanation:

Please help! I wish you a good day :)

Answers

Answer:

A=p2-2p-3

Step-by-step explanation:

The area for a triangle is given by:

A=1/2bh

The base is p + 1 and the height is 2p - 6. Therefore:

A=1/2(p+1)(2p-6)

Simplify the second term:

A=(p+1)(1/2)(2p-6)=(p+1)(p-3)

Distribute:

A=p(p-3)+1(p-3)

Distribute:

A=p2-3p+p-3

Combine like terms:

A=p2-2p-3

Which expression is equivalent to |x| < 11?


x > –11 or x < 11


x < –11 and x > 11


x < –11 or x > 11


x > –11 and x < 11

Answers

the answer is x > -11 and x > 11 :)

4 1/2 x 2 1/2 x 8 1/2 =

Answers

Answer:

[tex]95\frac{5}{8}[/tex]

Step-by-step explanation:

[tex]4\frac{1}{2} * 2\frac{1}{2} * 8\frac{1}{2}[/tex] = 9/2 * 5/2 * 17/2

765/8 = [tex]95\frac{5}{8}[/tex]

Find the slope and the y intercept of the line -7x-2y=10

Answers

Answer:

Gradient = -3.5, y - intercept = ( 0 , -5 )

Step-by-step explanation:

→ Rewrite into y = mx+ c format

-2y = 7x + 10

→ Divide everything by 2

-y = 3.5x + 5

→ Multiply everything by -1

y = -3.5x - 5

What is the rule for 1 10 28 64 136

Answers

Answer:

2x+8

Step-by-step explanation:

The rule is 2x+8; the formula you have written and erased was correct. The next number in the sequence would be 568

how long does it last for Fanger print

Answers

Answer:

A fingerprint can last on a surface from 2 hours to 40 years on average.

Step-by-step explanation:

Most fingerprints will get erased due to impact from humidity and heat.

For the equation z – 14 = 29. Jaun says that the solution is 33.Check solution work by substitutions it into the equation .Is his solution correct. Explain

Answers

Answer:

Jaun's solution is incorrect.

Step-by-step explanation:

If Jaun's solution to the equation is 33, we can check this by substituting z=33 and solving 33 - 14 = 29. Since 33-14=19 and 19 does not equal 29, Jaun's answer is incorrect.

Hope this helps! :)

PEMDAS 4+5 x (6-2) what the answer ​

Answers

4+5 x (6-2)
4+5 x (4)
4+ 20
24

Answer:4(5x+1)

Step-by-step explanation: you want to subtract the numbers 4+5x(6-2)/4+5x(4) so you'll need to  multiply 5 and 4 so 4+5x*4 but i'm goin to make it smaller so it would be 4+20x  but you have to rearrange it instead of it being 4+20x it would be 20x+4 .And the common factor would be 4(5x+1).

I hope this helps and makes sense.

Which of the following will form the composite function G(F(x)) shown
below?
G(Fx)) = 3(/* +1)
A. Fx) = x + 1 and G(x) = 13x
B. Fx) = 3x and G(x) = 5x + 1
C. F(x) = 3x and G(x) = 1
D. F(x) = 5x + 1 and G(X) = 3x

Answers

Answer:

Step-by-step explanation:

A

The given composition function is combination is F(x)=√x+1 and G(x)=3x. Therefore, option D is the correct answer.

The given function is G(F(x))=3(√x+1).

F(x)=√x+1 and G(x)=3x

The composite function is G(F(x))

Replace x by √x+1 in 3x, we get

3(√x+1)

Therefore, option D is the correct answer.

To learn more about the composite function visit:

https://brainly.com/question/20379727.

#SPJ7

Calculate the value of X​

Answers

X=5.281
Please give me brainliest I need it

For $1.80 a grocer buys a case of fruit which contains 12 dozen. He knows that 2 dozen will spoil before he sells them. At what price per dozen must he sell the good ones to gain 1/3 of the whole cost?

Answers

Answer:

i didnt understand the awnser fully but if i did the awnser is 5 cents a donut

Step-by-step explanation:

I assume you mean she wants to make 50% profit, based on a cost of $1.80/dozen. (The wording is ambiguous. If the problem was presented as you posted it, it's from a pretty sloppy text.)

10x = 1.5(1.80*12)
x = 3.24

When should you suggest that a peer rearrange some of the paragraphs in her report?

when you’re having trouble understanding how the sentences are related to each other

when the most convincing or persuasive evidence appears first in the report, followed by background information

when you find a section that seems unrelated to the rest of the report

Answers

The main answer:

D: when you find a section that seems unrelated to the rest of the report

Step-by-step explanation:

I don't have an explanation for this, sorry!)

Hope it helps!

F r o g

Answer:

D: when you find a section that seems unrelated to the rest of the report

Step-by-step explanation:

Please I need help!!

Answers

Answer:

Min:3 Q:66-9 Med:9 Q3:10-14 Max19

1. which expression is equivalent to 4(9+3).
Multiple Select three expressions

A. 4(12)
B. 36+3
C. 36+12
D. 4+(9+3)
E. (9+3) +(9+3) +(9+3) +(9+3)

Answers

Answer:

A. 4(12)

C. 36+12

E. (9+3) +(9+3) +(9+3) +(9+3)

Step-by-step explanation:

[tex]4(9+3)=48[/tex]

[tex]4*9=36\\4*3=12[/tex]

           [tex]48[/tex]

[tex]4*12=48[/tex]

[tex]36+12=48[/tex]

[tex](9+3) +(9+3) +(9+3) +(9+3)\\12+12+12+12[/tex]

=48

Solve the following:

four and seven twelfths plus six and nine twelfths

Answers

Ans:

11 and four twelfths

Step-by-step explanation:

You buy tomatoes in 25 lb cases one portion of salad requires. 75 oz of tomatoes how many portions can be made with one case

Answers

1 lb = 16 oz
so 25 lbs = 400 oz

if each salad requires 75 oz and you have 400 oz, divide 400/75

400/75 = about 5.3

since you can’t really have a third of a salad, you will be able to make 5 FULL portions with one case

final answer: 5 portions

hope this helped!!

If r = 11, t = 3, s = 9, then 8r - 10s =

Answers

Answer:

-2

Step-by-step explanation:

plug values for r and s into the equation 8r - 10s.

so, 8(11) - 10(9)

88 - 90 = -2

hope this helps!

8 x 11 - 10 x3 = -2

Victoria is at an elevation of 150 feet. She hikes down to an elevation of 120 feet in 40 minutes.
Then she hikes down to an
elevation of 100 feet in 30 minutes.

What is her average rate of descent, in feet per minute, from 150 feet to 120 feet?

Answers

The Victoria's average rate of descent by hiking down from an elevation of 150 feet to an elevation of 120 feet in 40 minutes is equal to 0.75 feet per minute.

How to determine the average rate of descent of a hiker

Geometrically speaking, the average rate of descent (r), in feet per minute, is represented by a secant line, which represents in this case the change in elevation (Δz), in feet, divided by the change in time (Δt). A mathematical description of the formula is shown below:

r = Δz/Δt     (1)

If we know that Δz = 30 ft and Δt = 40 min, then the average rate of descent is:

r = 30 ft/40 min = 0.75 ft/min

The Victoria's average rate of descent by hiking down from an elevation of 150 feet to an elevation of 120 feet in 40 minutes is equal to 0.75 feet per minute. [tex]\blacksquare[/tex]

To learn more on average rates, we kindly invite to check this verified question: https://brainly.com/question/14712970

how many inches are in 12 ft

Answers

Answer:

the answer is 144

Answer:

144 inches

Step-by-step explanation:

There are 12 inches in 1 foot,

So 12 times 12 is 144 inches.

what is 6/4 in its simplst form

Answers

it would be 3/2 i believe

Answer:

Fraction form: [tex]\frac{3}{2}[/tex]
Decimal form: 1.5
Mixed number form: 1 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Find the greatest common factor between the two numbers in the fraction, in this case the largest number both can be divided by equally is 2, so,

Take [tex]\frac{6}{4}[/tex] and divide both parts by 2:

6 ÷ 2 = 3

4 ÷ 2 = 2

Which gives you [tex]\frac{3}{2}[/tex]

Need help with the answer

Answers

Answer:

sine(∡DAB) = 0.5

Step-by-step explanation:

∡[tex]ACD=[/tex]∡[tex]ADB[/tex] = 60°

∡[tex]DAB=(180-90-60)^{o} =30^{o}[/tex]

[tex]sin(30^{o})= 0.5[/tex]

Hope this helps

Vectors r, s, t, u, and v are shown on the graph.

Which of the following vectors is equivalent to 2/3v (Image shown)

Answers

2/3 of v is like most of the size, 1/3 is cut. So s I think.

Please help! I really need it

Answers

To find the volume of a triangular prism:

 ⇒ necessary to know the formula

     [tex]Volume = (Area-of-Triangular- base)*(length)[/tex]

Let's first find the area of the triangular base:

 ⇒the formula for the finding the area of a triangle is ⇒ [tex]\frac{1}{2}bh[/tex]

b: length of base --> 3mmh: length of height: 6mm

     Area of the triangle is  [tex]\frac{1}{2}*3*6=3*3=9[/tex]

Since the area of the triangular base is 9 and the length is 5.22

 ⇒ the volume is:

         [tex]Volume = 9 * 5.22=46.98mm^3[/tex]

When the volume is rounded to the nearest tenth, the volume is 47.0 [tex]mm^3[/tex]

Hope that helps!

   

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