The circumference of a circle is 6.4mm.
Find the length of the diameter.
Give your answer rounded to 3 SF.

Answers

Answer 1

Answer: 2.04  

Step-by-step explanation:


Related Questions

A triangle has angles that measure 106° and 59°.

What is the measure of the third angle?


74º


121°


15°


47°

Answers

Answer: 15°

Steps:
106 + 59 + x = 180
165 + x = 180
x = 180 - 165
x = 15

Check:
106 + 59 + 15 = 180
106 + 59 + 15 = 180
180 = 180 ✅

I would appreciate brainliest if this was helpful, correct, and had clear steps! :) let me know if you have any questions!

Find c.
Round to the nearest tenth.

Answers

Answer: Picture is blury for me I can not see it well enough

Step-by-step explanation:

All i see is the 8 ft and 17ft cant see any of the other numbers

find the value of x round to the nearest degree

Answers

x is 51.06 degrees, so the answer is 52.

Answer: 27

Step-by-step explanation:

Plz help I will give Brainlyest plz help fast

Write the expression as a single logarithm.
4logb^y + 3logb^x

Answers

Answer:

b

Step-by-step explanation:

The money Sky makes from babysitting is directly proportional. After 4 hours, she makes $72. How much money would she make after 7 hours?

A) $72
B) $52
C) &126
D) $108

Answers

Answer:

C. $126

Step-by-step explanation:

Let us say x is the amount of money Sky makes for babysitting 7 hours.

[tex]\frac{72}{4} =\frac{x}{7}[/tex]

[tex]\frac{72}{4} = 18[/tex]

[tex]18=\frac{x}{7}[/tex]

x=$126

126
72 divided by 4= 18
18•7= 126
:)

an element with mass 630 grams decays by 18.8% per minute. How much of the element is remaining after 7 minutes, to the nearest 10th of a gram?

Answers

Answer:

Step-by-step explanation:

Total Depreciation: 60.24%

Total depreciation: $9,759.50

Car Value after 6 years: $6,440.50

The element is remaining 146.6 grams after 7 minutes, to the nearest 10th of a gram.

What is exponential decay?

An exponential function's curve is created by a pattern of data called exponential decay, which exhibits higher decreases over time.

The exponential decay function:

Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.

Given:

An element with mass 630 grams decays by 18.8% per minute.

That means, 18.8% = 0.188

Here, we will use the exponential decay function.

Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.

Here,

A₀ = 630 grams

r = 0.188

x = 7 minutes

Substituting the values to the formula,

A₇ = 630(1-0.188)⁷

A₇ = 630(0.812)⁷

A₇ = 630(0.23275134787)

A₇ = 146.633

A₇ = 146.6 grams.

Therefore, element is remaining 146.6 grams.

To learn more about the exponential decay;

https://brainly.com/question/14344314

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Circle the volume, in cm^3, of a cylinder with radius 5 cm and height 8 cm
[1 mark]
A)40π
B)80π
C)200π
D)1600π

Answers

Answer:

C

Step-by-step explanation:

Volume of a cylinder is πr²h

V = π * 5² * 8

V = π * 25 * 8

V = π * 200

V = 200π

what’s 6.305082126 rounded to the nearest degree (No decimals)

Answers

Answer:

6

Step-by-step explanation:

3 is smaller that 5 so round down

ms walker order 3 donuts and 1 bottle of milk. the total cost was $6.50. if the bottle of milk cost $1.50, write an equation to represent this situation.

Answers

Answer:

$5.00

Step-by-step explanation:

6.50-1.50=5

or

1.50+5=6.50

where each donut is about $1.67

Write an equation in Standard form for a line that goes through the points
(-2,-6) and (3, 4).

Answers

Using the point slope equation, we first calculate the slope
m=(4-(-6))/(3-(-2) = 10/5 =2

Now we can choose either point to get the equation
y-(-6) = 2(x-(-2))
y+6 = 2x+4
Subtract 6 from both sides
Y=2x-2

At a taffy pull, George stretched the taffy to 3 feet. Jose stretched it 1_ 1 3 times as far as George. Maria stretched it _ 2 3 as far as George. Sally stretched it _ 6 6 as far. Who stretched it the farthest? The least?

Answers

Answer:

Jose stretched the taffy the farthest and Maria stretched it the least

Step-by-step explanation:

Distance stretched by George = 3 feet

Distance stretched by Jose is [tex]1\dfrac{1}{3}[/tex] times as much as George so

[tex]3\times 1\dfrac{1}{3}=3\times\dfrac{4}{3}=4\ \text{feet}[/tex]

Distance stretched by Jose is [tex]4\ \text{feet}[/tex]

Maria streched the taffy [tex]\dfrac{2}{3}[/tex] times as George

[tex]3\times \dfrac{2}{3}=2\ \text{feet}[/tex]

Maria stretched the taffy by [tex]2\ \text{feet}[/tex]

Sally stretched it [tex]\dfrac{6}{6}[/tex] so [tex]1\ \text{feet}[/tex]

So, Jose stretched the taffy the farthest and Maria stretched it the least.

what is the answer to the problem 5p-14=8p+4

Answers

p=-6 hope that helps also can u give me brainliest? do u need work shown? if so i can comment it

Answer:p=-6

Step-by-step explanation:

Help me with this pls

Answers

the answer is C) 180°
the answer is c!!!!!

1. Which is an exponential equation?
(1) y = x2
(3) y = 2x-3
(2) y =5^x
(4) y = 1/x

Answers

The answer is y=5^x. Good luck bud!

plz plz help plz plz​

Answers

Answer:

1

Step-by-step explanation:

when dividing numbers with exponents with the same base, subtract the exponents.

[tex]\frac{8^{7} }{8^{7} }[/tex]

7 - 7 = 0

[tex]\frac{8^{7} }{8^{7} }[/tex] = [tex]8^{0}[/tex]

anything to the power of 0 is 1

[tex]8^{0}[/tex]= 1

Answer:

1

Step-by-step explanation:

Any number divided by itself equals 1 with the exception of 0 since 0/0 is undefined.

8^7 is not equal to zero, so without doing any calculations or using any other rules, we know that

8^7/8^7 = 1

We can use the rule of exponents for dividing powers.

Rule:

[tex] \dfrac{a^m}{a^n} = a^{m - n} [/tex]

Here we have a = 8, m = 7, and n = 7.

Applying the rule, we get

[tex] \dfrac{8^7}{a^7} = 8^{7 - 7} = 8^0 [/tex]

Another rule of exponents:

[tex] a^0 = 1 [/tex]

We the zero power rule now:

[tex] 8^0 = 1 [/tex]

Therefore,

[tex] \dfrac{8^7}{a^7} = 1 [/tex]

Answer: 1

HURRYYY A company is introducing a new product. The equation y = –0.001(x – 600)2 + 90 predicts the expected profit, in thousands of dollars, where x represents the number of thousands of units of the product sold by the company. How many units must be sold to yield a maximum profit? 90 600 90,000 600,000

Answers

Answer:

d

Step-by-step explanation:

^u^

The amount of units that must be sold to a number yields a maximum profit is 600. Hence 600 units will be the correct option.

How to find maxima?

To find the maxima of any function it needs to differentiate with respect to the dependent variable and equate with zero to get stationary points.

After achieving the stationary points it needs to put on the double derivative of that function to check whether it's maxima or minima.

If the double derivative got negative then it will be maxima.

Given that function

f(x) = -0.001(x-600)² + 90

By differentiation

[tex]$f'(x)$[/tex] = -0.002(x - 600) + 90

Now equate with zero

-0.002(x - 600) + 90 = 0

x - 600 = 0

x = 600

Now checking the x at double derivative

[tex]$f''(x)$[/tex] at x = 600 it is coming out to -0.002 which is negative Hence, the 600 units will be the correct answer.

For more about maxima

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A 10 METER PIECE OF WIRE IS CUT IN TO TWO PIECES ONE PIECE IS 2 METERS LONGER THAN THE OTHER HOW LONG ARE THE PIECES

Answers

one piece is 6m and the other is 4m

one piece is 2m

one is 8m

A. f(x) =1/2 (4,000)^x

B. f(x) = 4,000(2)^x

C. f(x) = 2,000 (1/2)^x

D. f(x) = 4,000 (1/2)^x

Answers

the answer is b sit

Find the value of x.

Answers

Answer:

6

Step-by-step explanation:

Because they are the same

I NEED HELP ILL GIVE BRAINLEST

Answers

The last 2 options are correct

Answer:

5,0

10,0

( I'm sorry if this wasn't helpful to you) ;(


HELPPPPPPPPPPPPPPPPPPOPPPPPPP PLZZZ

Answers

Answer:

x^2 + 3x

Step-by-step explanation:

just add like terms so 3x^2 - 2x^2 = x^2 and 11x - 8x = 3x

In degrees, what is the measure of MFE?

Answers

Answer:

30°

Step-by-step explanation:

It tells us that MFE is equal to (x + 6)° so we need to find x

The angle accross from MFE is RFT. These angles are congruent, because they are a vertical pair. So RFT is also equal to (x + 6)°

The angle RFT and PFR combined form a right angle. This means that RFT + PFR = 90°.

They told us that PFR = (3x - 4)°

so that means that (x + 6) + (3x - 4) = 90°

Knowing that we can just solve the equation by combining like terms

4x + 2 = 90

      Subtract two from both sides

4x = 88

       And then divide by 4

x = 22

Now we can plug in 22 in the original equation to find MFE

22 + 6 = 30

so MFE = 30°

Need help, due in 1 hour please!

Answers

Answer:

C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

hope this helps lovely! <3

Write an equation that could be used to find the value of x using the interior angles of ∆ABD, then solve the equation.

Answers

Answer:

equation: 55 + (2x + 3) + 90 = 180

55 + 2x + 3 + 90 = 180

2x + 148 = 180

2x = 32

x = 16

Answer:

55 + 50 + 2x+3 + 2x+8 = 180

x = 16

Step-by-step explanation:

55 + 50 + 2x+3 + 2x+8 = 180

113 + 4x = 180

4x = 64

x = 16

Help! I need an answer in 30 minutes!

Answers

a. TABLE 2
b. 10d = M
c. table 2 and table 3

Im having trouble with these and ive been staring at my screen for over an hour- I just need to know the answer-

Answers

Answer:

(-3, 4)

It doesn't show any coordinates so I assume that the origin is where the x and y axes intercept

Question 11: x = -1
Question 3: (-3, 4)
Question 6: C
Question 10: (-1, 0)
Question 7: x = -3

P(x) =0.02x³+0.04x²+0.3x+1.2.Evaluate P(18) by direct substitution and by applying the remainder theorm

Answers

Answer:

136.2

Step-by-step explanation:

Plugin x = 18 in the polynomial.

P(x) = 0.02x³ + 0.04x² + 0.3x + 1.2

P(18)= 0.02*(18)³ + 0.04*(18)² + 0.3*18 + 1.2

      = 0.02 * 5832  + 0.04*324 + 5.4 + 1.2

      = 116.64 + 12.96 + 5.4 + 1.2

      = 136.2

Calculate the value of p and the value of q

Answers

Answer:

q= 20 p= 56

Step-by-step explanation:

A angle is also 62°

Answer:

q = 20 degrees

p = 59 degrees

Step-by-step explanation:

to find q, find all the other interior angles within that shape and subtract it from 360

angle E = 180 - 62 = 118

angle b = 90

angle c = 132

360 - (118 + 90 + 132) = 20

angle q = 20 degrees

to find p, add all the other interior angles within that shape and subtract it from 180

angle e = 62 degrees

angle a and b are the same so, take 62 and subtract it from 180 then divide the answer by 2

180 - 62 = 118

118 / 2 = 59

angle a = 59 degrees

angle p = 59 degrees

Someone pls help me

Answers

Answer:

2. 8x

3. (12/2)*(10/2)

Step-by-step explanation:

What is the equation of the coordinate A and B if they are (4,7), (6,3) respectively. What is the equation of the straight line.

Answers

Answer: y+2x=15

Step-by-step explanation:

Given

Two points A and B are (4,7) and (6,3) respectively

Using two-point form

[tex]\Rightarrow \dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

Putting values

[tex]\Rightarrow \dfrac{y-7}{x-4}=\dfrac{3-7}{6-4}\\\\\Rightarrow \dfrac{y-7}{x-4}=\dfrac{-4}{2}=-2\\\\\Rightarrow y-7=-2x+8\\\\\Rightarrow y+2x=15[/tex]

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