simplify each of the following ratios.
e) 2/3 : 3/2 : 5/8​

Answer:

28.2

Step-by-step explanation:

radius of semicircle=(4/2) = 2

circumference of circle=

[tex]2\pi \:r[/tex]

[tex]circumference \: of \: semicircle = 0.5 \times 2\pi \:r[/tex]

perimeter=9+9+2pi+4

=28.2

Answer:

B: Retain the null hypothesis

Step-by-step explanation:

In the relationship between the confidence interval and hypothesis, it is stated that:

When the confidence interval is constructed, all values that fall inside the interval are considered possible values for the parameter that we are estimating while values that fall outside the interval are rejected as they are considered not possible or realistic values.

Now, If the value of the parameter specified by the null hypothesis falls inside the given confidence interval, then we will fail to reject the null hypothesis at the corresponding significance level. However, If the value specified by the null hypothesis doesn't fall inside the given confidence interval, then the null hypothesis can be rejected at the corresponding significance level.

Answer:

(x-2)(x-2)

Step-by-step explanation:

Find two things you can multiply to equal to 4 and add to equal -4

-2*-2=4 and -2+-2=-4

Answer:

It would be 16!

Step-by-step explanation:

Step 1 : 6 times 24 is 144

Step 2 : 144/9

Answer 16!

Answer:

ur dad and. ur mom plus ur dad mama ififjfifnfbfndjfkjfif

Jayce earns 3 more points from gold stars than from silver stars.

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Given that Jayce collected 80 silver stars and earned 160 points.

He collected 30 gold stars and earned 150 points.

Therefore,

The points per star Jayce earns from silver stars

160/80=2,

The points per star Jayce earns from gold stars

150/30=5

Hence, Jayce earns 3 more points from gold stars than silver stars.

To learn more about the unitary method, please visit the link given below;

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Answer:

D

Step-by-step explanation:

The amount of time that will take him to swim the remaining distance will be [2,000 (1/5)] / (3/4). Then the correct option is D.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

Speed is defined as the length traveled by a particle or entity in an hour. It is a scale parameter. It is the ratio of length to duration.

We know that the speed formula

Speed = Distance/Time

Mateo has proactively swum Four-fifths of the 2,000 meters he is swimming today. On the off chance that he keeps swimming at a speed of Three-fourths of a meter each second.

3/4 = 2,000 (1 - 4/5) / T

T = [2,000 (1/5)] / (3/4)

The amount of time that will take him to swim the remaining distance will be [2,000 (1/5)] / (3/4). Then the correct option is D.

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Answer:

A) 12.6 units

Step-by-step explanation:

Answer:

1.66

Step-by-step explanation:

Calculation to find the standard deviation for the random variable X of the number of students who work full time in samples of size

Using this formula

Standard deviation(X)=√np(1−p)

Where,

n represent the number of students=16

p represent the percentage of all students who work full time=22

Let plug in the formula

Standard deviation(X)=√16(0.22)(1−0.22)

Standard deviation(X)=√(3.52)(0.78)

Standard deviation(X)=√2.7456

Standard deviation(X)=1.656

Standard deviation(X)=1.66 (Approximately)

Therefore the standard deviation for the number of students who work full time in samples of size 16 will be 1.66

Answer: -2/3x+/2/5

Step-by-step explanation:

−2(13x−15)=  (−2) (13x  + −15) =   (−2)(13x)+(−2)(−15)

Answer:

-2/3x +2/5

Step-by-step explanation:

Answer:

200

Step-by-step explanation:

25 cars can be washed in a hour so we do 25×8=200

Answer:

I believe that the answers are:

a= 65 degrees

b= 80 degrees

Step-by-step explanation:

Purple 80 and b should be the same so 80 degrees

180 - 80 is 100 which is A so a equals 100-35 whis is 65.

Answer:

a=65°, b=100°

Step-by-step explanation:

Hope the answers help! I got confused at first, but take a last look at line BE. Angle EAF is vertically opposite to this line. This means that angle BAF equals 80°. b=100°. a is just 180-80-35, so a=65°.

Answer:

y = 0.6x

It's in the first quadrant because you can't buy a negative amount of tickets and you can't pay a negative amount of money.

Answer:

0.6

Step-by-step explanation:

Answer:

Step-by-step explanation:

2x + 1 = 5

2x = 4

x = 2

Answer:

8 should be multiplied in the parenthesis

Step-by-step explanation:

8(9 + x) = 192

72 + 8x = 192

8x = 120

x = 4

Javier made the mistake while expanding the brackets.

Order of operation means simplify the function , expression etc. in given manner.  

To expand a single bracket multiply each term inside the bracket by the term outside the bracket.

8 (9+x) = 192

8*9 + 8*x = 192

72 + 8x = 192

Now, rearranging the above expression

8x = 192 - 72

8x = 120

x = 120/ 8

x = 5

Hence, Javier made the mistake while expanding the brackets.

To learn more about the order of the operation;

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Answer:

28 in 2/3

Step-by-step explanation:

42/ 28 = 1.5

60/1.5= 40

40/60-4/6=2/3

28 in 2/3

Answer:

1. 230, 219, 208, 197, 186.

2. Arithmetic, you are subtracting a constant rate, instead of an exponential rate.

3. Finite, the question says the farmer only took 10 trips, infinite would be much, much much more trips.

Step-by-step explanation:

1. The pattern is to subtract 11, so you just do this for 3 more times.

2. Geometric sequences could look something like 230-11=219. The you multiply by a random number like 2, then you subtract 219- (11x2), 219-22=197. This sequence does not do that.

3. It says in the question the farmer only does it for 10 more times.

Answer

it would be $20 a year so it would be a 4% interest rate

Step-by-step explanation:

Answer: y = 3 + x/2

Step-by-step explanation:

Answer:

The circumference is 565.2 feet when the ferris wheel makes 4 rotations.

Step-by-step explanation:

Given that the diameter of the wheel is 45 feet.

That is:

[tex]d = 45\ feet[/tex]

We have to find the radius first

[tex]r = \frac{d}{2} = \frac{45}{2} = 22.5\ feet[/tex]

The circumference of the circular wheel for one rotation will be:

[tex]C = 2\pi r[/tex]

And for four rotations' circumference the circumference of one rotation will be multiplied with 4.

[tex]C = 2 * 3.14 * 22.5\\C = 141.3\ feet[/tex]

Total circumference:

[tex]C_T = 4C\\= 4 * 141.3\\=565.2\ feet[/tex]

Hence,

The circumference is 565.2 feet when the ferris wheel makes 4 rotations.

Question Completion:

Joon bought the shares at this price, and her broker charged her 1% commission. What was the total cost of her investment?

Regne sold the shares of ExxonMobil shown in the above trade and his broker charged him 1.5% commission How much money did the broker receive?

Lisa sold the shares of Chevron indicated above through her discount broker, who charges $28 per transaction.  How much did Lisa receive from the above after the broker took his fee.

Answer:

Trades of Stock in Hewlett-Packard (HPQ) ExxonMobil (XOM) and Chevron CTX)

a. Shares of Hewlett-Packard sold = 6,000 (6K)

b. The total value of all the HP shares sold is $63,780.

c. Total cost of Joan's investment is $64,417.80.

d. Regne's broker received a commission of $3,677.40.

e. Lisa received $760,022.

Step-by-step explanation:

a) Data and Calculations:

Hewlett-Packard (HPQ)    ExxonMobil (XOM)          Chevron CTX)

HPQ 6K10.63 ∨0.23          XOM 3K81.72 ∧ 0.08    CVX 9K84.45 ∨0.22

b) The total value of all the HP shares sold is 6,000 * $10.63

= $63,780

c) Joan's investment:

Investment = $63,780

Broker's commission = 1% = $637.80

Total cost of Joan's investment = $64,417.80 ($63,780 + $637.80)

d) Regne Broker's Commission:

Investment = $245,160 (3,000 * $81.72)

Commission = $3,677.40 ($245,160 * 1.5%)

e) Lisa received from Chevron's stock sale:

Investment = 9,000 * $84.45 = $760,050

Broker's fee = $28

Lisa's receipt = $760,022 ($760,050 - $28)

Answer:

Step-by-step explanation:

How many shares of Hewlett-Packard were sold? 308172

Answer:

10x+5y=120

y=-2x+24

Step-by-step explanation:

x=adult tickets

y=children tickets

120=total spent

10x+5y=120

5y=120-10x

y=(120/5)-(10x/5)

y=24-2x or y=-2x+24

Answer:

[tex]a = 10[/tex]

Step-by-step explanation:

Given

[tex]Initial\ Velocity\ (u) = 20m/s[/tex]

[tex]Final\ Velocity\ (v) = 60m/s[/tex]

[tex]Time = 4s[/tex]

Required

Determine the acceleration

This question will be answered using the first equation of motion.

[tex]v = u + at[/tex]

Substitute values for v, u and t

[tex]60 = 20 + 4 * a[/tex]

[tex]60 = 20 + 4 a[/tex]

Subtract 20 from both sides

[tex]60 - 20= 20 -20 + 4 a[/tex]

[tex]40= 4 a[/tex]

Divide both sides by 4

[tex]10 = a[/tex]

[tex]a = 10[/tex]

Hence, the acceleration is 10m/s/s

Answer:

1) y = -7 -1x

2) y = + 4.5 + 5/8x

3) y = 4 -1/5x

4) y = -5 + 9x

5) y = 7 + 3/2x

6) y = -6 -1/4x

Step-by-step explanation:

I Hope That This Helps! :)

Answer:

m=2

Step-by-step explanation:

Answer:

slope = 2

Step-by-step explanation:

(x₁ , y₁) = (-1 , 2)    & (x₂ , y₂) = (-3 , -2)

[tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\= \frac{-2-2}{-3-[-1]}\\\\= \frac{-4}{-3+1}\\\\= \frac{-4}{-2}\\\\= 2[/tex]

Since both angles are vertical angles, we need to set them equal to each other.

[tex]2(x + 10) = 3x - 30\\\\2x + 20 = 3x - 30\\\\5x + 20 = 30\\\\5x = 50\\\\x = 10[/tex]

The final answer is x = 10.

Answer:

18.2

Step-by-step explanation:

because 17+24+19+17+14=91 then 91/how ever many numbers are in the equation not including the answer is what what you divide by in this case it is 5 so 91/5 is 18.2

Hope this helped!!