The diameter of the circle is 90m. What is the circumference of the circle. Find 3.14 for pie.​

Answer:

336

Step-by-step explanation:

0.84=$1

multiply by 400 to find answer

0.84(400)=$400

336=$400

Answer:

336 euros

Step-by-step explanation:

If

1$=0.84

400=x (cross multiply)

X=400x0.84

X=336

Answer:

84 beads

Step-by-step explanation:

She had 98 beads and lost all but fourteen. So it would be 98 - 14 which would get you 84 beads that the girl has lost

The ratios that are equivalent to 1/2 are the ones which have the same decimal value when the fraction is solved:

We can also see them as having a numerator that is half the denominator.

This is the case for 4/8, 50/100, 20/40 and 9/18.

All these ratios have a value of 0.5, so they are equivalent to 1/2.

Answer: 4/8, 50/100, 20/40 and 9/18.

Answer:

$15.59

Step-by-step explanation:

$405.34/26 = $15.59

Answer:

The product of two numbers is 21.

Step-by-step explanation:

If the first number is -3, which equation represents this situation and what is the second number? A. The equation that represents this situation is x − 3 = 21.

first what quantities do we need to talk about?

the problem speaks of “a number”, let’s call that number x.

now write the equation that relates x to the other numbers we know.

the first clue is the word “difference”.

this means “subtraction”, but we need to subtract something from something else.

what are the two somethings? ”a number times 7” and “4”.

so, since we have a name for “a number”, let’s translate this as x*7 - 4 what else do we know?

it says the difference is 9. So complete the equation x*7 - 4 = 9 if we rewrite this cosmetically, 7x - 4 = 9

i assume that you know how to solve this for x.

so then wehn solving 7x - 4 =9 we take -4 change it to +4 so then +9 we go and get 13

7x = 13

7/7 = 13/7

x=  13/7

Answer:

You should expect to find the middle 98% of most head breadths between 3.34 in and 8.46 in.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:

\(Z = \frac{X - \mu}{\sigma}\)

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

\(\mu = 5.9, \sigma = 1.1\)

In what range would you expect to find the middle 98% of most head breadths?

From the: 50 - (98/2) = 1st percentile.

To the: 50 + (98/2) = 99th percentile.

1st percentile:

X when Z has a pvalue of 0.01. So X when Z = -2.327.

\(Z = \frac{X - \mu}{\sigma}\)

\(-2.327 = \frac{X - 5.9}{1.1}\)

\(X - 5.9 = -2.327*1.1\)

\(X = 3.34\)

99th percentile:

X when Z has a pvalue of 0.99. So X when Z = 2.327.

\(Z = \frac{X - \mu}{\sigma}\)

\(2.327 = \frac{X - 5.9}{1.1}\)

\(X - 5.9 = 2.327*1.1\)

\(X = 8.46\)

You should expect to find the middle 98% of most head breadths between 3.34 in and 8.46 in.

Answer:

\(slope \: = - \frac{ 7}{2} \)

Step-by-step explanation:

To find the slope of the line that passes through the points

\( \: {x}^{1} \: \: {y}^{1} \: \: \: \: \: \: \: \: \: \: \: \: \: \: {x}^{2} \: \: \: \: {y}^{2} \\ (5, \: \: 3) \: \: \: and \: \: (7, \: - 4)\)

We have to follow the formula:

\( \frac{ {y}^{2} - {y}^{1} }{ {x}^{2} - {x}^{1} } \\ \\ \frac{ - 4 - 3}{7 - 5} \\ \\ slope = - \frac{ 7}{2} \)

Answer:

66

Step-by-step explanation:

If there are  n  students, then the number of pairs is \(\frac{n(n-1)}{2}\).

With 12 students, \(\frac{12(12-1)}{2} = \frac{132}{2}=66\) pairs can be formed.

The reason the formula works is this:  Each of the 12 students can be paired with 11 other students (no student is paired with him/her self).  But counting 12 x 11 = 132  counts each pair twice.  Example: student A can be paired with student B,..., student B can be paired with student A.  The pair was counted two times.

See the attached image that shows pairings of 5 students.  There are

5(5 - 1)/2 = 5(4)/2 = 10 pairs.

The expression that is equal to the given Polynomial expression is (x^3-4)(2x+5).

The polynomial expression given is 2x^4+5x^3-8x-20. We have to identify the expression that is equal to this given polynomial expression.

We will factor the given polynomial expression to determine the equivalent expression. We can use factorization by grouping to factor the expression completely and determine the equivalent expression .

Factorization by grouping:

We can group the first two terms 2x^4 and 5x^3 together and factor out x^3 from them. We can also group the last two terms -8x and -20 together and factor out -4 from them.

This gives us;2x^4+5x^3-8x-20= x^3(2x+5)-4(2x+5) =(x^3-4)(2x+5)

Therefore, the expression that is equal to the given polynomial expression is (x^3-4)(2x+5).

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The coordinates of polygon A'B'C'D' after the rotation of 180º are given as follows:

A'(0,0), B'(-5,-2), C'(-5,5), D'(0,3).

The five more known rotation rules are given as follows:

The original coordinates for this problem are given as follows:

A(0,0), B(5,2), C(5,-5), D(0,-3).

Exchanging the sign of each of the coordinates, the coordinates after the rotation are given as follows:

A'(0,0), B'(-5,-2), C'(-5,5), D'(0,3).

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Answer:

Expression for surface area is 3.14(6 * 4 + 6^2) = 3.14(24 + 36)  

surface area is 3.14(60) = 188.4 square units.

Step-by-step explanation:

hope this works

I could offer a credit of $66.6.

A percentage is a number or ratio expressed as a fractin of 100. It is often denoted using a percent "%" sign.

The given bill of customer =  $333.0.

Credit can be given to customer = 20%

Now,I can credit a customers account up to 20% of full amount due

For credit off to be offer,we need to find 20% of $333

⇒  20% of $333 =  20/100*333

⇒  20% of $333 =  $66.6

Hence, I could offer a credit of $66.6

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The expected value for the given data set is 1.4.

What is expected value?

The value that will most likely be obtained from the following iteration of a statistical experiment is known as the expected value. In order to calculate the expected value for a random trial of an experiment, the probability of each possible result is taken into account.

From the given table we have to find the expected value.

Since,

Expected value = E(X) = μ = ∑ x*P(x)

E(X) = (0*0.4) + (1*0.05) + (2*0.3) + (3*0.25)

E(X) = 0 + 0.05 + 0.6 + 0.75

E(X) = 1.4

Hence, the expected value for the given data set is 1.4.

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Answer: 1.75

Step-by-step explanation:

Divide 21 by 12 to get your answer, which is 1.75 :)

Answer:

j = 7/4

Step-by-step explanation:

There is no explanation.

The internal representation of 531 using a 32 bit memory location to store each number is; 00000000000000000000001100100001

When representing numbers, they are divided by 2 as follows;

Hence, the representation of 531 in a computer using a 32 bit memory is;

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Answer:

its b4 + 7b3 + 4b2 + b5 + 7b4+ 4b3= b5+8b4+11b3+4b2

Answer:

When multiplying, add the exponents, (example) remember if there is "7b" the exponent is one.

Multiply b^2 * b^3 = b^5  (add the exponent 2 + 3 = 5)

Multiply 7b * b^3 = 7b^4 (the exponent of 7b is one, add 1 + 3 for the exponent to become 4)

Multiply 4 * b^3 = 4b^3 (4 doesn't have a variable, the exponent will be 3)

b^2 * b*2 = b^4 (add exponents)

7b * b^2 = 7b^3 (add the exponents 1 + 2)

4 * b^2 = 4b^2

              b^2             +               7b             +        4

b^3           b^5              +           7b^4            +   4b^3

+                                                                                      

b^2           b^4             +           7b^3            + 4b^2

b^5 + 7b^4 + 4b^3 + b^4 + 7b^3 + 4b^2

\(b^5 + 7b^4 + 4b^3 + b^4 + 7b^3 + 4b^2\)

Answer: 129 m^2

Step-by-step explanation

Answer: 129 m^2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

1i.) x = 18

1ii.) x = 40

2.) x = 155

3i.) ABD = 115° (actually this is wrong, idk how to calculate this ;-;

3ii.) BEF = 135°

Step-by-step explanation:

*All triangles add up to 180° in total of all angles added together*

i.) Find x

4x + 3x + 3x = 180°

10x = 180°

10x/10 = 180/10

x = 18

----------------------------------------

ii.) Find x

180 - 115 = 65

65° + 75° + x° = 180°

140° + x° = 180°

x° = 180° - 140°

x = 40°

----------------------------------------

2.) Find x

180 - 145 = 35

45° + 35° + n° = 180°

80° + n° = 180°

n° = 180° - 80°

n° = 100°

*Vertical Angles of n and m (variables I randomly made so I can solve this), so they are both the same*

100 + 55 + m = 180

155 + m = 180

m = 180 - 155

m = 25

25 + x = 180

x = 180 - 25

x = 155

----------------------------------------

3.) Find Angles

i.) ABD

180° - 65° = 115°

Angle ABD = 115°

ii.) BEF

180° - 110° = 70°

70° + 65° + x° = 180

135° + x° = 180°

x° = 180° - 135°

x = 45°

180° - 45° = 135°

Angle BEF = 135°

Answer:

1.4. The interest Tito should pay would be R10000 * 12% = R1200 for his first year.

1.1.5. The total amount Tito must pay back after 4 years would be R10000 * (1 + 12%)^4 = R10000 * 1.57351936 = R15735.2 (cor. to 1 d. p.).

1.1.6. People loan money from banks due to financial troubles or to attain startup resources for a company or business venture.

Step-by-step explanation:

Hope this helped!

Answer:

4800

Explanation:

interest=principle × rate × time/100

interest=10000 ×12 × 4/100

interest= 480000/100

interest=4800

amount=interest+principle

amount=4800+10000

amount=14800

people loan money from banks because they need money at a particular point in time where they do not have it

Answer:

4-(2n)= 30

Step-by-step explanation:

N is 17

Therefore, Paxton will need to invest her money for approximately 21.62 years to increase her investment from $4850 to $8000 at a simple interest rate of 7.6% per year.

To determine how long Paxton needs to invest her money in order for it to increase to $8000, we can use the formula for simple interest:

I = P * r * t

Where:

I = Interest earned

P = Principal (initial investment)

r = Interest rate per year (expressed as a decimal)

t = Time (in years)

Given that Paxton invests $4850 at an interest rate of 7.6% per year, we have:

4850 * 0.076 * t = 8000

Simplifying the equation:

369.8t = 8000

To find t, we divide both sides of the equation by 369.8:

t ≈ 8000 / 369.8 ≈ 21.62 years

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Answer:

5/36 ; 1/12 ; 2/9 ; yes

Step-by-step explanation:

Given the following :

Roll of two fair dice : green and red

Probability = (number of required outcomes / number of total possible outcomes)

(a) What is the probability of getting a sum of 6?

Number of required outcomes = 5

P(sum of 6) = 5/36

b.) What is the probability of getting a sum of 10?

Number of required outcomes = 3

P(sum of 10) = 3 / 36 = 1/12

c.) What is the probability of getting a sum of 6 or 10?

P(getting a sum of 6) + P(getting a sum of 10)

(5/36) + (1/12) = (5 + 3) / 36

= 8/36 = 2/9

The events are mutually exclusive because each event cannot occur at the same time.

The sky appears blue because of Rayleigh scattering while water appears blue due to selective absorption and scattering of light.

The blue color of the sky is a result of Rayleigh scattering which occurs when the Earth's atmosphere scatters shorter wavelengths of light (blue and violet) more efficiently than longer wavelengths (red and orange).

When sunlight enters the atmosphere, the blue light is scattered in all directions by the molecules and tiny particles present in the air creating the blue appearance of the sky.

Similarly, water appear blue due to selective absorption and scattering of light. Water molecules selectively absorb colors from the visible light spectrum and absorb longer wavelengths (such as red) more effectively than shorter wavelengths (such as blue).

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Answer:

You saved $135 off of the original price of the guitar

Step-by-step explanation:

The original price of the guitar is $450. If we subtract 30% of the original price, we will essentially be solving 450 - 135 which gives us $315. Since we know that 30% was the amount taken off, 30% of the original price is how much you saved. So, you saved $135 off of the original price of the guitar.

(sorry if this is confusing, I'm not very good with words)

9x=28. x=28÷9

Answer:

Step-by-step explanation:

Quadratic means squared equation so

the first one is your answer.

y= 4x²