What is the value of the expression (-8/9)*(-2/3) multiplied by (-4 1/2)

Answer:

The correct answer is D. 69

Step-by-step explanation:

Let's recall that if an exterior angle has its vertex where two rays share an endpoint outside a circle, the measure of that exterior angle is found by dividing the difference between the measures of the intercepted arcs by two.

Therefore, we have:

x = (Measure of arch CD - Measure of arch BD)/2

Replacing with the real values:

x = (210 - 72)/2

x = 138/2 = 69°

The correct answer is D. 69

The figure is a 4 sided pyramid, so it has 4 triangles and the base is square.

The net would be the lower left one.

Answer:

C

Step-by-step explanation:

Answer:

x=12,y=10

Step-by-step explanation:

let two nos are  x and y

so x-y=2.............(1)

xy=120................(2)

(x+y)^2=(x-y)^2+4xy

(x+y)^2=2^2+4(120)

(x+y)^2=4+480=484

x+y=[tex]\sqrt{484}[/tex]

x+y=22.................(3)

adding  (1) and (3),

x+y=22

x-y=2

2x=24

x=12,y=10  answer

Answer:

yo   m om        s  u  c   k        c o c  k

Step-by-step explanation:

Answer:

you can make 14 muffins

Step-by-step explanation:

To get this answer you first need to know that 1 cup makes 8 muffins. Next know that there's 1 3/4 cups of flour. Because you know that 1 cup makes 8 muffins you need to figure out how many muffins 3/4 a cup of flour can make. To do this you divide 8 by 4. Hence 8 divided by 4 is 2. So know you know that for every 1/4 cup you can make 2 muffins. Now since there's 3/4 cup of flour you then multiply 2 by 3 which is 6. Now you have to add 1 cup ( 8 muffins) to 3/4 cup ( 6 muffins ) of flour which then equals 14. You then get the answer , 1 3/4 cups of flour can make 14 muffins. Hope this helped ;)

Answer:($7.76/4)x 13

Step-by-step explanation: There is no way to start from the price of 4 glue sticks. So, you have to find the unit rate. The unit rate is the cost of 1 of the items. For example, if 8 apples was $5.65, you have to find out what 1 apple cost so you can buy as many apples you want, not just 8. After finding the unit rate, multiply the unit rate by 13. Back to the apple example, if I did not want 8 apples but 15, and I want to know what the price is before I go up to the counter to buy it, I would multiply the unit rate by how much I want.

Also, the answer to ($7.76/4)x 13 is $25.22. The unit rate was $1.94.

Answer:

4. vertical translation 4 units down

6. horizontal translation 2 units to the right

Step-by-step explanation:

Given [tex]f(x)=7^x[/tex] and [tex]g(x)=7^{x+2}-4[/tex]

1. Adding 2 to x means horizontal translation 2 units to the right.

2. Subtracting 4 from the function [tex]7^{x+2}[/tex] means vertical translation 4 units down.

So, to transform the graph of the function f(x) to the graph of the function g(x), you need to translate the graph of the function f(x) horizontally 2 units to the right and vertically 4 units down.

Answer:the answers are “ horizontal translation 2 units left” and “ vertical translation 4 units down” :)

Step-by-step explanation:

Answer:

The price of each CD before tax was $15.30.

Step-by-step explanation:

Given:

Miguel bought 6 CDs that were each the same price.

Including sales tax, he paid a total of $99.60.

Each CD had a tax of $1.30.

Now, to find the price of each CD before tax:

So, to get the price of 1 CD including tax by using unitary method:

Total price of 6 CDs including tax = $99.60.

So, the price of 1 CD including the sales tax = $99.60 ÷ 6 = $16.60.

Thus, the price of each CD including tax = $16.60.

Tax  on each CD = $1.30.

Now, by subtracting we get the price of each CD before tax:

[tex]\$16.60-\$1.30[/tex]

[tex]=\$15.30.[/tex]

Therefore, the price of each CD before tax was $15.30.

Answer:

see explanation

Step-by-step explanation:

Note the common ratio r between consecutive terms of the sequence

r = 6 ÷ 3 = 12 ÷ 6 = 24 ÷ 12 = 48 ÷ 24 = 2

The explicit rule for a geometric sequence is

[tex]a_{n}[/tex] = a₁[tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

Here a₁ = 3 and r = 2, thus

[tex]a_{n}[/tex] = 3[tex](2)^{n-1}[/tex] ← explicit rule

Step-by-step explanation:

Compare the ratios of their heights, widths, and lengths.  If they're the same, then the solids are similar.

10/5 = 2

6/3 = 2

6/3 = 2

The ratios are the same, so the solids are similar.

Equation #1: x+y=40

Equation #2: 7x+4y=193

Monica bought 11 red bricks.

Step-by-step explanation:

Given,

Cost of one red brick = $7

Cost of one gray brick = $4

Total spent on bricks = $193

Total bricks bought = 40

Let,

x represents the number of red bricks bought.

y represents the number of gray bricks bought.

What is the system that models this situation?

Equation #1: x+y=40

Equation #2: 7x+4y=193

How many red bricks did Monica purchase?

Multiplying Eqn 1 by 4

[tex]4(x+y=40)\\4x+4y=160\ \ \ Eqn\ 3[/tex]

Subtracting Eqn 3 from Eqn 2

[tex](7x+4y)-(4x+4y)=193-160\\7x+4y-4x-4y=33\\3x=33[/tex]

Dividing both sides by 3

[tex]\frac{3x}{3}=\frac{33}{3}\\x=11[/tex]

Monica bought 11 red bricks.

Keywords: linear equation, elimination method

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Answer:

D

Step-by-step explanation:

If you Break the bigger ones into smaller ones they will seem more attainable. Writing down your goals will help you remember. Taking care of resell will help you attain your goals faster and easier

The Neolithic Revolution allowed people to live in permanent settlements.

Explanation:

The Neolithic Revolution is the phase of transition in which many of the human cultures in the world shifted their lifestyle to permanent settlement and agriculture from hunting and gathering.

This era is also named as First Agricultural Revolution or Neolithic Demographic Transition. The agricultural practices led the cultures to develop the knowledge of domestication of animals and they began to observe and experiment with the plants (to learn or know how they grow and develop).

Neolithic period is named as revolution because this period changed the way of life of most of the communities. This first occurred in so-called "Fertile Crescent" or Mesopotamia (modern Iraq).

The Neolithic Revolution allowed people to live in permanent settlements.

Answer: Option B

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

Because parallel lines have the same slopes.

Answer:

15×2x

Step-by-step explanation:

Answer:

15 more than twice a number if it is a certain number u would multiply 15 times what ever number u chose

Step-by-step explanation:

Answer:

The value of home after t years is $249,000 [tex](0.929)^{\textrm t}[/tex]

Step-by-step explanation:

Given as :

The original value of home = p = $249,000

The value of home depreciate every year at rate = r = 7.1%

Let The value of home after t years = A

Now, According to question

The value of home after t years = original value of home × [tex](1-\dfrac{\textrm rate}{100})^{\textrm time}[/tex]

Or, A = p × [tex](1-\dfrac{\textrm r}{100})^{\textrm t}[/tex]

Or, A = $249,000 × [tex](1-\dfrac{\textrm 7.1}{100})^{\textrm t}[/tex]

Or, A = $249,000 × [tex](0.929)^{\textrm t}[/tex]

So,The value of home after t years = A = $249,000 [tex](0.929)^{\textrm t}[/tex]

Hence,The value of home after t years is $249,000 [tex](0.929)^{\textrm t}[/tex] . Answer

So first we have to know what (fog)(x) means. Whenever we have the notation (fog)(x) or (gof)(x) or whatever variables (hof)(c) it means that we put the function closest to the x in the other function.

Basically for (fog)(x) this means put g(x) in f(x)

For (hof)(c) this means put f(c) in h(c)

For (gof)(x) this means put f(x) in g(x)

So now we can proceed with the problem.

f(x) = x^2 - 2 (I assume you wrote x squared) and g(x) = x - 3. Find (fog)(x)

So we are going to put g(x) in f(x). So wherever there is an x in f(x) we are gonna replace that with x -3:

f(g(x)) = (x-3)^2 - 2

If we want we can foil this out:

(x-3)(x-3) - 2

x^2 - 6x + 9 -2

or x^2 - 6x + 7

So: (fog)(x) = x^2 - 6x + 7

*If you meant 2x the process is the same but will give you a different answer*

Jake runs fastest

Step-by-step explanation:

The given is:

We need to find who runs fastest

To solve the problem we must to find the unit rate of each one in feet per second

∵ Jake runs 334 feet and 26 seconds

- To find the unite rate divide 334 feet by 26 seconds

∴ Jake's rate = 334 ÷ 26 = 12.85 ft./s

∵ Katie runs 1 mile in 596 seconds

- Change the mile to feet

∵ 1 mile = 5280 feet

∴ Katie runs 5280 feet in 596 seconds

- To find the unite rate divide 5280 feet by 596 seconds

∴ Katie's rate = 5280 ÷ 596 = 8.86 ft./s

∵ Stephanie runs 580 feet in one minute

- Change the minute to seconds

∵ 1 minute = 60 second

∴ Stephanie runs 580 feet in 60 seconds

- To find the unite rate divide 580 feet by 60 seconds

∴ Stephanie's rate = 580 ÷ 60 = 9.67 ft./s

∵ Emily's rate is 10 ft./s

∵ Jake's rate is 12.85 ft./s

∵ Katie's rate is 8.86 ft./s

∵ Stephanie's rate is 9.67 ft./s

- The fastest one who has the greatest rate

∵ Jake's rate is the greatest

∴ Jake runs the fastest

Jake runs fastest

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The rate at which the area of the triangle changes when the height is 22 cm and the base is 10 cm is 14 cm²/min.

Using the formula for a triangle's area, A = (1/2) × base × height, we can determine rate of the triangle's area changes.

We can describe the rate of change of the base as db/dt = -1 cm/min (negative because it is shrinking) given that the base is shrinking at a rate of 1 cm/min.

The height is increasing at a rate of 5 cm/min, so the rate of change of the height can be expressed as dh/dt = 5 cm/min.

We must determine dA/dt for h = 22 cm and b = 10 cm in order to determine the rate at which the triangle's area changes at these two points.

We can start by differentiating the area formula with respect to time (t):

dA/dt = (1/2) × (db/dt × h + b × dh/dt)

Substituting the given values:

dA/dt = (1/2) × (-1 cm/min × 22 cm + 10 cm × 5 cm/min)

Simplifying:

dA/dt = (1/2) × (-22 cm/min + 50 cm/min)

= (1/2) × 28 cm/min

= 14 cm/min

Therefore, the rate at which the area of the triangle changes when the height is 22 cm and the base is 10 cm is 14 cm/min.

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The rate at which the area of the triangle changes is 2 cm²/min. This is found by applying the chain rule of differentiation to the triangle area formula, substituting the given values and rates, and simplifying.

The subject of this question is rate of change in context of the Triangle Area Formula: 1/2 * base * height. Given that the base is shrinking at a rate of 1cm per minute (1 cm/min) and the height is increasing at a rate of 5 cm/min, we can express this rate of change in the formula. A negative sign is used for the base because the base length is decreasing.

To find the rate of change in the area, use the chain rule of differentiation, leading to the formula (-1/2 * height * db/dt) + (1/2 * base * dh/dt). When the height is 22 cm and the base is 10 cm, substituting these values along with the rates at which the base and height are changing, the formula becomes (-1/2 * 22cm * 1 cm/min) + (1/2 * 10cm * 5 cm/min). Simplify to find that the area of the triangle is changing at 2 cm²/min.

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Answer:

one number is 90 and the other one 9

Step-by-step explanation:

Let's refer to the larger number as "x", and the smaller as "y", so we can create equations with those unknowns and solve them algebraically.

Now let's write the first phrase we are given in mathematical form:

"One number is 10 times as large as another one"

Remember that our larger number is "x", so the first equation out of this phrase is:

x = 10 * y

Now for the second phrase:

"Their difference is 81"

Here we need to make the difference setting the larger number first (x), minus the smaller number (y), so as to get a positive difference of 81 units:

x - y =81

now we solve this system by substituting "x" in the second equation with "10 * y" according to what our first equation states:

10 y - y = 81

9 y = 81

y = 81/9

y = 9

and therefore now that we know the value of number y (9) we can go back to the first equation to find what number "x" is:

x = 10 * (9)

x = 90

Finally: x = 90, and y = 9

Answer:

$545

Step-by-step explanation:

Let the total cost per year be y.

He spent a flat amount of $125 per year.

Then he spend an additional $35 per months. There are 12 months in a year so that's a total of 35*12=$420.

Add up the cost

y = 125 + 420 = $545

The amount given to them is GHS300.00

Step-by-step explanation:

A man gave an amount of money to his three sons Yao, Esi and Ampa in the ratio of  their years

We need to find the amount given to them

Let us use the ratio method to solve the problem

∵ Yao is 15 years old

∵ Esi is 10 years old

∵ Ampa is 5 years old

∴ The ratio between them is

→  Yao    :    Esi    :    Ampa

→  15       :    10     :    5

Simplify the terms of the ratio by divide each term by 5

∴ The ratio between their ages in the simplest form is

→  Yao    :    Esi    :    Ampa

→  3         :    2      :    1

∵ Esi had GHS100.00

→  Yao    :    Esi    :    Ampa    :   Total

→  3         :    2      :    1             :   6 ( 3 + 2 + 1 = 6)

→             :  100     :                  :    x

Use the cross multiplication to find x

∵ 2(x) = 100(6)

∴ 2x = 600

- Divide both sides by 2

∴ x = 300

∵ x represents the total money given to them

∴ The amount given to them is GHS300.00

The amount given to them is GHS300.00

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Answer:

GHS300.00.,//.:.  

15 years!%

10 years!)

5 years%

GHS100.00!))>))                                  

......................................................

that is the answer i got but it could be wrong

:| :)

The figure/drawing isn't needed to answer this question.

The question tells us ABCD ~ WXYZ, which means trapezoid ABCD is similar to WXYZ.

Point A corresponds to point W, B corresponds with X, C corresponds with Y, and D corresponds with Z (first, second, third, and last letters correspond with each other according to the similarity statement).

Now let's check each answer choice and see which applies to these similar trapezoids:

Let me know if you need any clarifications, thanks!

Answer:

c kd kjdkwj

Step-by-step explanation:

jc kjkd ndjfhcajhd,cm sdnfj vkdshf vndc jdsfhbv

The cost of two pounds of cherries is $8.58. So, the unit rate that describes the cost per pound of cherries is $4.29 and this can be determined by using the unitary method.

Given :

The cost of two pounds of cherries is $8.58.

The unitary method can be used to determine the unit rate that describes the cost per pound of cherries. In the unitary method, there are two values that have to be found that is a single unit and a necessary unit.

Given that the cost of two pounds of cherries is $8.58 then the cost of unit rate is:

[tex]=\dfrac{8.58}{2}\times 1[/tex]

Multiply 8.58 by 1 in the above expression.

[tex]=\dfrac{8.58}{2}[/tex]

Divide 8.58 by 2 in the above expression.

= $4.29

The cost of two pounds of cherries is $8.58. So, the unit rate that describes the cost per pound of cherries is $4.29.

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Answer:

x=-2

Step-by-step explanation:

4x (+ 5-5) = -3-5

4x = -8

4x/4 = -8/4

x=-2

4(-2) + 5= -3

-8 + 5 = -3

-3 = -3

Answer is Correct.

Answer:

[tex] \: \: \: \: \: \: 4x + 5 = - 3 \\ = > 4x = -3 - 5 \\ = > 4x = - 8 \\ = > x = \frac{ - 8}{4} \\ = > x > - 2[/tex]

Answer:

For x: We subtract the exponents,

this way. 0 - 2 = -2

For y: We subtract the exponents,

this way. -3 - -1 = -2

x -² y -²

Answer:

x=3/2

Step-by-step explanation:

4x+18=24

4x=24-18

4x=6

x=6/4

simplify

x=3/2

Answer: 4x+18=24

First move 18 to other side (24-18), left with 4x=6

Divide both sides by 4 to be left with x=6/4 & reduce that fraction down to 3/2

Step-by-step explanation:

Answer:

In the quotient [tex]x^4+2x^3+x^2+5x+10=0[/tex] , the coefficient of x is 5.

Step-by-step explanation:

Given rational expression is [tex]\frac{-x^5+3x^3-3x^2+20}{x-2}[/tex]

Nicolette used synthetic division to solve the given rational expression.

Nicolette's work is given below:

Given that x-2 is a zero of given rational expression

By using synthetic division for the given rational expression.

2_|        -1     0     3     -3       0       20

             0   -2     -4    -2     -10      -20

 ____________________________

           -1      -2     -1     -5    -10     |  0

Therefore the simplified expression can be written as below

[tex]-x^4-2x^3-x^2-5x-10=0[/tex]

Taking negative sign outside.

[tex]-(x^4+2x^3+x^2+5x+10)=0[/tex]

Multiply negative sign with "0" we get "0"

Therefore [tex]x^4+2x^3+x^2+5x+10=0[/tex]

In the quotient [tex]x^4+2x^3+x^2+5x+10=0[/tex], the coefficient of x is 5.

Answer:

13

Step-by-step explanation:

16-3+= 13

Answer:

x=9

Step-by-step explanation:

To solve, simplify the equation them isolate x.

8(2x- 6) = 96   Distribute over brackets by multiplying

16x - 48 = 96   Add 48 to both sides

16x = 144         Divide both sides by 16

x = 9                Final answer

Answer:

2/13

Step-by-step explanation:

There are 4 kings and 4 queens in a standard deck of 52 cards.  So the probability is:

P = 8/52

P = 2/13