Get it right please.

A zoologist recorded the speed of two cheetahs. Cheetah A ran 17 miles in 8 minutes. Cheetah B ran 56 miles in 20 minutes. Which statement is correct?

Cheetah A has a higher ratio of miles per minute than Cheetah B because 17 over 8 is less than 56 over 20.
Cheetah B has a higher ratio of miles per minute than Cheetah A because 17 over 8 is greater than 56 over 20.
Cheetah B has a higher ratio of miles per minute than Cheetah A because 17 over 8 is less than 56 over 20.
Both cheetahs have the same ratio of miles per minute.

Answer: 3:4

Step-by-step explanation: just divide it by 5

4x5=20

3*5=15

if the ratio was 6:15 then you would dive it by 2 because 2 is equivalent to 6 and 7.

Hope this helps :)

The graph is interpreted below

(a) the parabola open downward

(b) the coordinates of the vertex is (1, 9)

(c) the intercept(s)

x-intercept(s): (-2, 0) and (4, 0)

y-intercept(s): (0, 8)

(d) the equation of axis of symmetry: x = 2

To find the intercepts of a parabola, you need to determine the points where the parabola intersects the x-axis (x-intercepts) and the y-axis (y-intercept).

Examining the graph shows that the points are

x-intercept(s) (Roots): (-2, 0) and (4, 0)

y-intercept(s): (0, 8)

Also, investing the graph shows that the graph opens upward and the vertex which is the maximum point is (1, 9)

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Answer:

1.

The cost of the carpet is given in dollars per square foot.

First I calculated the number of square feet which is the area of the carpet.

Then I multiplied the area of the carpet in square feet by the unit cost of the carpet.

2.

$576

Step-by-step explanation:

A = LW

A = 12 ft × 12 ft

A = 144 ft²

Unit cost of carpet: $4/ft²

cost of carpet = unit cost × area of carpet

cost of carpet = $4/ft² × 144 ft² = $576

1.

The cost of the carpet is given in dollars per square foot.

First I calculated the number of square feet which is the area of the carpet.

Then I multiplied the area of the carpet in square feet by the unit cost of the carpet.

2.

$576

Answer:

9th term = 524288

Step-by-step explanation:

An equation we can use to find the nth term in a geometric sequence is:

[tex]a_{n}=a_{1}(r)^(^n^-^1^)[/tex], where

Step 1:  We're already given that a1 = 8 and that n = 9 (since we want to find the 9th term).  However, we need to find the common ratio by dividing two consecutive terms with the successive term being divided by the preceding term.  We can divide 32 by 8 to find r, the common ratio:

r = 32/8

r = 4

Thus, the common ratio of the sequence is 4

Step 2:  In order to find the 9th term of the sequence, we can plug in 8 for a1, 4 for r, and 9 for n and simplify:

[tex]a_{n}=8(4)^(^9^-^1^)\\a_{n}=8(4)^8\\a_{n}=8(65536) \\a_{n}=524288[/tex]

Thus, the 9th term of the geometric sequence is 524288.

Answer:

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

We know the tangent is perpendicular to radius.

Find the slope of the radius using its endpoints:

Perpendicular lines have negative reciprocal slopes, therefore the slope of the tangent is:

The matching choice is 2.

The image vertices of P′ are P′(-5, 1), S′(0, 1), R′(3, -2), and T′(-2, -4).

To determine the image vertices of P′ after rotating the preimage 90° counterclockwise, we can apply the following transformation rules for a 90° counterclockwise rotation about the origin:

(x, y) → (-y, x)

Using these rules, we can find the image vertices of the polygon:

P (1, 5) → P′ (-5, 1)

S (1, 0) → S′ (0, 1)

R (-2, -3) → R′ (3, -2)

T (-4, 2) → T′ (-2, -4)

Therefore, the image vertices of P′ are P′(-5, 1), S′(0, 1), R′(3, -2), and T′(-2, -4).

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The height of the tree stump is approximately 32.5 inches. Where its radius as 22 in and its volume as 49265 cubic inches.

The volume of a right cylinder is calculated as follows:

V = πr²h

where V denotes volume, r denotes radius, and h denotes height.

We are provided the radius and volume of the tree stump in this scenario. We may plug these values into the algorithm to find the height:

49265 = π(22²)h

Simplifying the right-hand side, we get:

49265 = 484πh

Dividing both sides by 484π, we get:

h = 49265 / (484π)

h = 49265 / (484 * 3.14)

h = 49265/ 1519.76

h = 32.416

h ≈ 32.5

Therefore, the height of the tree stump is approximately 32.5 inches.

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This value is quite close to the doubling time approximation of 18 years that is often used for populations growing at a rate of 4% per year.

The given rate of growth = 4.1%

We know that,

The doubling time is the amount of time required for a population to double in size or value.

It is used to calculate population growth, inflation, resource extraction, commodities consumption, compound interest, the volume of malignant tumors, and a variety of other things that tend to develop over time. When the relative growth rate is constant (rather than the absolute growth rate), the amount grows exponentially and has a constant doubling time or period, which may be determined simply from the growth rate.

Formula for calculating the doubling time using logarithms is:

doubling time = ln(2) / (annual growth rate)

Since 41% = 0.041

doubling time = ln(2) / (0.041)

doubling time = 16.85 years

So the doubling time for South Sudan's population at this growth rate is approximately 16.85 years ≈ 18 years

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Suppose,

[tex]y=(x-3)^2-47 ----------------(1)\\y=17 -------------------------(2)[/tex]

Put [tex]y=17[/tex] in place of x in the first equation:

[tex]17=(x-3)^2-47[/tex]

To both sides, add [tex]47[/tex]:

[tex]64=(x-3)^2[/tex]

Add the square roots of both sides together:

[tex]8=x-3[/tex] or [tex]-8=x-3[/tex]

To each sides, add [tex]3[/tex]:

[tex]x=11 or -5[/tex]

As a result, the following are the equations' solutions:[tex]x=-5, y=17 or x=11, y=17[/tex].

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Answer: The expression showing the total number of gel pens ="8g"

Step-by-step explanation:

Number of bags with Zoe= 8

Number of gel pens with Zoe=g

According to the question, Zoe puts g gel pens in  each one of the 8 bags, which means that the total number of gel pens would be the sum of all pens present in all the 8 bags .

=(no of pens in one bag)x(no of bags)

=gx8

=8g

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The numerical value of x in the inscribed angle and intercepted arc is 4.

An inscribed angle is simply an angle with its vertex on the circle and whose sides are chords.

The relationhip between an an inscribed angle and intercepted arc is expressed as:

Inscribed angle = 1/2 × intercepted arc.

From the image:

Inscribed angle XZY = 14x + 4

Intercepted arc XY = 30x

Value of x = ?

Plug these values into the above formula and solve for x.

Inscribed angle = 1/2 × intercepted arc.

14x + 4 = 1/2 × 30x

14x + 4 = 15x

15x = 14x + 4

15x - 14x = 4

x = 4

Therefore, x has a value of 4.

Option D) 4 is the correct answer.

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The additional interest on the loan by the rates is $2150241.13

From the question, we have the following parameters that can be used in our computation:

Principal, P = $271,000

Time = 40 years

Rates = 7% and 5%

The interest is calculated as

I = P(1 + r)ˣ - P

So, we have

Calculate the difference in the interests

Difference = 3787078.07443 - 1636836.94099

So, we have

Difference = 2150241.13344

Approximate

Difference = 2150241.13

Hence, the additional interest is $2150241.13

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Answer:

[tex]\sqrt{844}=2\sqrt{211}=29.05[/tex]

[tex]\sqrt{900} =30[/tex]

[tex]\sqrt{650}=5\sqrt{26}=25.49[/tex]

[tex]\sqrt{784}=28[/tex]

[tex]\sqrt{699} =\sqrt{699}=26.43[/tex]

[tex]\sqrt{805}=\sqrt{805}=28.37[/tex]

[tex]\sqrt{729}=27[/tex]

Step-by-step explanation:

1.

[tex]\sqrt{844}[/tex]

[tex]\sqrt{2} *\sqrt{422}[/tex]

[tex]1\sqrt{422}[/tex]

[tex]1\sqrt{2} *\sqrt{211}[/tex]

[tex]1+1\sqrt{211}[/tex]

[tex]2\sqrt{211}[/tex]

[tex]29.05[/tex]

2.

[tex]\sqrt{900}[/tex]

[tex]\sqrt{9} *\sqrt{100}[/tex]

[tex]3\sqrt{100}[/tex]

[tex]3 \sqrt{25} *\sqrt{4}[/tex]

[tex]3*5*2[/tex]

[tex]30[/tex]

3.

[tex]\sqrt{650}[/tex]

[tex]\sqrt{25}*\sqrt{26}[/tex]

[tex]5\sqrt{26}[/tex]

[tex]25.49[/tex]

4.

[tex]\sqrt{784}[/tex]

[tex]\sqrt{4} *\sqrt{196}[/tex]

[tex]2\sqrt{196}[/tex]

[tex]2\sqrt{49}*\sqrt{4}[/tex]

[tex]2*7*2[/tex]

[tex]28[/tex]

5.

[tex]\sqrt{699}[/tex]

[tex]26.43[/tex]

(can't be simplified)

6.

[tex]\sqrt{805}[/tex]

[tex]28.37[/tex]

(Can't be simplified)

7.

[tex]\sqrt{729}[/tex]

[tex]\sqrt{9}*\sqrt{81}[/tex]

[tex]3*9[/tex]

[tex]27[/tex]

Answer:

0.3947368421 = approx 39%

Step-by-step explanation:

Add up all the number of times rolled on the right column.

=6+3+5+6+9+9

= 38 total rolls

Add up the number of times a 4 or a 5 were rolled:

= 6+ 9 = 15

Divide 15/38

=15/38=0.3947368421 = approx 39%.

Answer:

6in

Step-by-step explanation:

angle C = 55 <-- 180-70-55=55
meaning the triangle is an isosceles so two sides would be the same.

The area of a right triangle with a height of 8 yards and a base of 17 yards is 136 square yards.

The area of a right triangle with a height of 8 yards and a base of 17 yards can use the formula for the area of a triangle:

Area = (base x height) / 2

Substituting the given values into the formula get:

Area = (17 x 8) / 2

Area = 136 square yards

The area of the right triangle is 136 yd².

To understand why this formula works can visualize the right triangle as half of a rectangle.

The height of the triangle is one side of the rectangle and the base of the triangle is the adjacent side of the other half of the rectangle.

The area of the rectangle is the product of its height and base is twice the area of the right triangle.

The product of the height and base by 2 to get the area of the right triangle.

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Probability = # of desired options / # of total options

Our desired option is blue and there are 9 blue marbles in the bag.

There are 32 total marbles (options) in the bag.

P(blue) = 9 / 32 = 0.28125 = 28.125%

Hope this helps!

To find the best prediction of the cost of the groceries nine years after the beginning of the study, we need to use the given data to find the values of a and b in the function C=a(b)x. So, the best prediction of the cost of the groceries nine years after the beginning of the study is $53.34.

To do this, we can use the first data point where x = 0:
30 = a(b)^0

This simplifies to:  

30 = a
So, we know that a = 30.

Next, we can use any other data point to solve for b. Let's use the second data point where x = 1:
32.10 = 30(b)^1

This simplifies to:
32.10 = 30b
b = 1.07
Now we can use the function C = 30(1.07)^x to find the best prediction of the cost of the groceries nine years after the beginning of the study:
C = 30(1.07)^9
C ≈ $53.34

Therefore, the best prediction of the cost of the groceries nine years after the beginning of the study is $53.34.

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The scale factor from triangle D to triangle D' is 4

From the question, we have the following parameters that can be used in our computation:

The triangles

From the triangles, we have the following parameters

Using the above as a guide, we have the following:

Scale factor of the dilation = Corresponding side length of D' / Side length of D

So, we have

Scale factor of the dilation = 32/8

Evaluate

Scale factor of the dilation = 4

Hence, the scale factor of the dilation is 4

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The salary plus benefits and the cost of living index for the two cities indicates;

1) Phoenix

2) San Antonio; $25,262.37, Phoenix; $21,901.35

3) San Antonio, because of the higher adjusted salary

The cost of living index is a measure of how expensive it is to reside in a city, compared with the national average costs.

1) The cost of living index for the cities indicates that Phoenix, with a cost of living index of 96.2 is more expensive to live in than San Antonio, Texas with a cost of living index of 85.3

2) The job offers can be evaluated by converting the salary from one city to another as follows;

(Salary in City A) × (Cost of living index for City B)/(Cost of living index for City A)

Therefore, we get;

San Antonio: ($17,000 + $5,400)×96.2/85.3 ≈ $25,262.37

Phoenix: ($23,500 + $1,200)*85.3/96.2 ≈ $21,901.35

3) The job offer that is better, based on the conversion of the job offers into adjusted salary for the two Cities of $25,262.37 vs $21,901.35, indicates that the San Antonio job offer is better

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Answer:

D

Step-by-step explanation:

First, to find the length of the side FH we will use the Pythagorean theorem which states [tex]a^2+b^2=c^2[/tex]. We can say that FH = a, FG = b, and HG = c. Since we know the values of b and c, we will rearrange the formula to solve for a [tex]a = \sqrt{c^2-b^2}[/tex]. That will be [tex]\sqrt{18^2-12^2)[/tex] which gives us 13.4 for the missing side.

Now to solve for the angles we will use simple trigonometry. Since we know that [tex]sin(\theta) = \frac{opposite} {hypotenuse}[/tex], we can do inverse trigonometry for the missing angles [tex]sin^{-1}(\frac{opposite}{adjacent}) = \theta[/tex]. For angle H, we can do [tex]sin^{-1}(\frac{12}{18})[/tex] which gives us 41.8 degrees. For angle G we can do [tex]sin^{-1}(\frac{13.4}{18})[/tex] and we get 48.1 degrees. We could also use inverse cos and trig to solve it.

Looking at the answer choices, only answer choice D is correct.

The common difference is -3, and the terms are 17, 14, 11, 8, 5 and the formula is a(n) = 17 - 3(n - 1)

From the question, we have the following parameters that can be used in our computation:

a20 = -40

a37 = -91

An arithmetic sequence is represented as

a(n) = a + (n - 1) * d

Where

d = common difference

Using the given terms, we have

a + 19d = -40

a + 36d = -91

So, we have

17d = -51

Divide

d = -3

This also means that

a + 19(-3) = -40

So, we have

a  = 17

Calculating the first five terms, we have

17, 14, 11, 8, 5

This also means that the nth term is a(n) = 17 - 3(n - 1)

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Answer: [tex]cosx =- \sqrt{ 1 - sin^2x}[/tex]

Step-by-step explanation:

Generally speaking; [tex]cos^2x + sin^2x = 1[/tex]

rearranging this gives us all sorts of cool things.

for now, we will use: [tex]cosx = \sqrt{ 1 - sin^2x}[/tex]

This however, is general.

In the third quadrant, cosine is negative. So cosx in QIII will be:

[tex]cosx =- \sqrt{ 1 - sin^2x}[/tex]

and thats the answer :)

The cost of electricity consumption (excluding VAT) for a household using 196 kWh in a month is given by [tex]\( \text{Cost} = 196 \, \text{kWh} \times r \), where \( r \)[/tex]represents the rate per kilowatt-hour charged by the electricity provider.

To determine the cost of electricity consumption excluding VAT, we need to know the rate charged per kilowatt-hour (kWh) by the electricity provider. Let's denote this rate as [tex]\(r\)[/tex] (in currency per kWh).

The total cost of electricity consumption (excluding VAT) can be calculated by multiplying the electricity usage in kWh by the rate:

[tex]\[ \text{Cost} = \text{Usage} \times \text{Rate} \][/tex]

Given that the household uses 196 kWh in a month, the cost can be expressed as:

[tex]\[ \text{Cost} = 196 \, \text{kWh} \times r \][/tex]

Please note that we still need the specific rate per kWh from the electricity provider to calculate the actual cost.

The cost of electricity consumption (excluding VAT) for a household using 196 kWh in a month is given by [tex]\( \text{Cost} = 196 \, \text{kWh} \times r \), where \( r \)[/tex]represents the rate per kilowatt-hour charged by the electricity provider.

Note: The given question is incomplete. The complete question is:

If a household uses 196kWh of electricity in a month how much would they pay for their electricity consumption excluding VAT?

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The arithmetic operations used to make the number 24 is  (7 - 5) × (7 - 5) = 24

To make the number 24 using the digits 5, 5, 7, and 7, you can use the following arithmetic operations:

(7 - 5) × (7 - 5) = 24

In this case, we subtract 5 from 7 to get 2, and then multiply the result by itself to get 24.

7-5=2.

Subtract the second 5 from the remaining 7: 7-5=2.

Multiply 2 and 2: 2x2=24.

Number 24 was created using 5, 5, 7, and 7.

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From the given circles HJ is common external tangent.

From the given circles A and B,

1) EF is diameter.

2) EGf is semicircle.

3) G is point of tangency

4) HJ is common external tangent

5) CDK is semicircle

6) BF is radius

7) A is center.

8) KF is common external tangent

9) CD is segment

10) GK is chord

11) CK is minor arc

Therefore, from the given circles HJ is common external tangent.

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The graph of the modulus function is plotted

Given data ,

Let the modulus function be represented as A

Now , the value of A is

| x | + 1 < 3

On simplifying the inequality , we get

Subtracting 1 on both sides , we get

| x | < 2

When x is positive or zero: In this case, the absolute value of x is equal to x itself. Therefore, we have x < 2

When x is negative: In this case, the absolute value of x is equal to -x. Therefore, we have -x < 2

Hence , the graph of function is plotted

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Answer:

301.593 mm²

Step-by-step explanation:

surface area of cylinder = 2π r² + 2π r h

where r = radius and h = height

so we have surface area = 2π (4)² + 2π (4) (8)

= 32π + 64π

= 96π mm² (in exact form)

= 301.593 mm² (to one-thousandth of mm)