.
If a*b = a - 1, then 7 * 28 =

Answers

Answer 1

Answer:

12

Step-by-step explanation:


Related Questions

Homer trying to decide what to wear for his graduation. He has narrowed his choices down to two jackets, three shirts, two pairs of pants, and two pairs of shoes. How many combinations can he have? PLEASE HELP FAST.

Answers

Answer: 2 combinations

Step-by-step explanation: he can either wear one jacket, one pair of shirt, one pair of pant and a air of shoes or the second combination the other jacket, shirt, pants and shoes

Anna enjoys dinner with her family at a restaurant in Washington, D.C. She leaves a 15% tip on the price of her meal. She also has to pay a 10% sales tax on her meal, which is calculated on the pre-tip amount. She spends a total of $27.50 for dinner, including tax and tip. What is the cost of her dinner without tax and tip? Show your work.

Answers

Answer:

$22

Step-by-step explanation:

tax and the tip increase the price paid for the meal

she paid 15 + 10 = 25% more than the price of her meal

p = original price

1.15 x p = 27,50

p = 27.50 / 1.15 = 22

Find the measure of the exterior angle.

Answers

Answer:

33+x+18=2x+3

51+x=2x+3

51-3=2x-x

48=x

Step-by-step explanation:

2x+3

2*48+3

96+3

99

At a restaurant grand opening, a giant sandwich that was 352 centimeters long was divided equally among 22 people. Clyde got one of the pieces, ate half, and saved half for later. Which equation can we use to estimate the length of the piece of sandwich Clyde saved?

Answers

Answer:

8 cm

Step-by-step explanation:

You neglected to include any equations

Here is one way to solve:

length of each piece

352/22 = 16

Half a piece

16/2 = 8

Choice C

352/22/2 = l

Answer:

352 ➗ 22 ➗ 2 = l

Step-by-step explanation:

Please help!! I can't figure this out

Answers

The answer is one mile

Answer:

1 miles

Step-by-step explanation:

5 min =  0.5 miles

so 10 min = 1 miles

Help please....I’m desperate

Answers

Answer:

6

Step-by-step explanation:

8×4=32/2=16

2×5=10

16-10=6

get the area of the entire large triangle, then subtract the are of the rectangle

Answer:

44

Step-by-step explanation:

I got 44

Gl

A simple machine makes work easier by

Answers

Answer:

Reducing the amount of manual labor required

Step-by-step explanation:

Even a simple machine is able to cut down on production time as well

Hope this helps

A company rents out 18 food booths and 27 game booths at the county fair. The fee for a food booth is $50 plus $6 per day. The fee for a game booth is $65 plus $8 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.

Answers

Answer:

$2655 + $324d

Step-by-step explanation:

total cost of a booth = fixed cost + (variable cost x number of days)

Fixed costs are costs that do not vary with output

Variable costs are costs that vary with production

cost of 18 food booths = 18(50 + 6d) = 900 + 108d

cost of 27 game booths = 27(65 + 8d) = 1755 + 216d

Add the total cost of the food and game booths together 900 + 1755 = 2655

108d + 216d = 324d

calculate the area of the shaded region.

Answers

Answer:

4ft

Step-by-step explanation:

4ft is the ansjdjfjdjsdmdhdkd

25 20 15 10 5 nth term

Answers

Answer:

-15

Step-by-step explanation:

Answer:

nth term = -5n + 30

Step-by-step explanation:

Given sequence:-

25 20 15 10 5

To find the nth term, we have to find the algebraic expression, Xn.

Xn = dn + b

Here, 'd' means the common difference and 'b' means 'first term -- common difference'

the common difference here is -5

So, b = 25 - (-5)

b = 25 + 5

b = 30

Xn = -5n + 30

Therefore, nth term equals -5n + 30

19.05 divided by N = 12.7

Answers

Answer:

1.5

Step-by-step explanation:

19.05 divided by 12.7 = 1.5

Answer:

1.5

Step-by-step explanation:

19.05 divided by 12.7 = 1.5

Which choice is equivalent to the quotient below ? 45/9

Answers

Answer:

5

Step-by-step explanation:

45 ÷ 9

5

Answer:

5

Step-by-step explanation:

What is the slope of Y=5x+4

Answers

Answer:

slope = 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 5x + 4 ← is in slope- intercept form

with slope m = 5

1.3. If Sara draws a red ball and DOES NOT RETURN it, and then she goes to draw a green
ball, is this considered a dependent or independent event?

Answers

Answer:

Dependent Event

Step-by-step explanation:

Assume that are 10 balls, such that:

[tex]Red = 6[/tex]

[tex]Green = 4[/tex]

If the balls are replaced after taken, the probability is:

[tex]Pr(Red) = 6/10[/tex]

[tex]Pr(Green) = 4/10[/tex]

This is referred to as independent event; because each selection do not affect the next or previous selection

However, if the balls are not replaced, the probability is:

[tex]Pr(Red) = 6/10[/tex]

[tex]Pr(Green) = 5/(10 - 1) = 5/9[/tex]

We subtracted 1 because there is a reduction in the number of balls when the red ball is not returned.

This is referred to as independent event; because a selection affects the next selection

Find the value of X. Round to the
nearest tenth.

Answers

Answer:

4.4in

Step-by-step explanation:

Answer:

x ≈ 4.4 in

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

with legs 2.4 and (7.4 ÷ 2) = 3.7 , x is the hypotenuse, then

x² = 2.4² + 3.7² = 5.76 + 13.69 = 19.45 ( take square root of both sides )

x = [tex]\sqrt{19.45}[/tex] ≈ 4.4 in ( to the nearest tenth )

A family went to a baseball game. They parked the car in a parking lot which charged $5. The cost
per ticket was $21. Write an equation for the total cost of going to the baseball game, where y is
the total cost and x is the total number of people,
Complete the equation: y=0
(Use integers or decimals for any numbers in the expression)
Enter your answer in the answer box
Bow progno

Answers

Answer:

y = 21x + 5

Step-by-step explanation:

The mean age of 5 women in an office is 23 years old. The mean age of 3 men in an office is 24 years old. What is the mean age (nearest year) of all the people in the office?

Answers

Answer:

23

Step-by-step explanation:

Women total age = 5 x 23 = 115

Men total age = 3 x 24 = 72

The mean age of all the people

= (115+72)÷(8)

= 23.375

= 23 (nearest year)

The mean age (nearest year) of all the people in the office is 23

How to determine the mean age?

The given parameters are:

5 women = 23 years

3 men = 24 years

Mean is calculated using:

[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]

So, we have:

[tex]\bar x = \frac{23 * 5 + 24 * 3}{5 + 3}[/tex]

Evaluate the quotient

[tex]\bar x = 23[/tex]

Hence, the mean age (nearest year) of all the people in the office is 23

Read more about mean at:

https://brainly.com/question/14532771

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A statistician has analysed the duration of audience laughter after a stand up comedian's jokes. The data showed that the laughter duration was evenly distributed between 4 seconds and 9.7 seconds. Then, the probability that the laughter after one of this comedian's jokes lasts for more than 7 seconds is

Answers

Answer:

The probability that the laughter after one of the comedians jokes lasts for more than 7 seconds is approximately 0.474

Step-by-step explanation:

The nature of the distribution of the given data = Evenly distributed data

The range of the laughter times = Between 4 seconds and 9.7 seconds

The probability density function, f(x), is given as follows;

[tex]f(x) = \dfrac{1}{b - a}[/tex]

The mean of the uniform distribution, μ, is given as follows;

[tex]\mu = \dfrac{a + b}{2}[/tex]

The standard deviation, σ, is given as follows;

[tex]\sigma = \sqrt{\dfrac{\left (b - a\right)^2}{12} }[/tex]

Where;

a = 4, and b = 9.7, we have;

μ = (4 + 9.7)/2 = 6.85

σ = √((9.7 - 4)²/12) ≈ 1.64545

The probability density function, f(x) = 1/(b - a) for a ≤ x ≤ b

∴ f(x) = 1/(9.7 - 4)

For P(x > 7), we have;

P(x > 7) = 1 - P(x < 7) = 1 - (7 - 4) × 1/(9.7 - 4) ≈ 0.474

The probability that the laughter after one of the comedians jokes lasts for more than 7 seconds P(x >7) ≈ 0.474.

PLEASE HELP. Don’t reply if don’t know!

Answers

Answer:

Pradnya can do two consecutive 90°-clockwise rotations or two consecutive 90°-counterclockwise rotations in order to land the piece squarely on the gap.

Answer:

you could turn it upside down and face the L to the left and make it fit into the hole or put it on top of the right facing L

Step-by-step explanation:

hope this helps have a good day

Find the value of x in the isosceles triangle shown below.

Answers

Answer: 2 times the square root of 10=x

Step-by-step explanation: 6^2+2^2= x^2

36+4=x^2

40=x^2

2 root 10=x

The double cone is intersected by a vertical plane passing through the point where the tips of the cones meet. What is the shape of the cross
section formed?

Answers

Is there any like math or equations??

For a second I actually thought that my bestie had remembered my birthday :(

Answers

Answer:

oof

Step-by-step explanation:

Answer:

Step-by-step explanation:

That sucks. I know how it is, and yeah it feels pretty bad. A lot of the time people forget and the day is just like everything other day. Sometimes some of your best friends may just forget.

Happy Birthday! I know it's not much, but I hpe the rest of your day isn't bogged down by this.

The triangle below are similar. Which similarity statements describe the relationship between the two triangles? Check all that apply.
O ACBA-AFED
O ACBA-AFDE
ABAC - AEFD
O ABAC - AEDF
AABC-ADEF
AABC-ADFE

Answers

Answer:

these three apply:

ΔCBA ≈ ΔFED

ΔBAC ≈ ΔEDF

ΔABC ≈ ΔDEF

Step-by-step explanation:

The similarity statements which describe the relationship between the two triangles is ΔCBA-ΔFED

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

The given triangles ABC and DEF are similar triangles.

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .

Side CB is congruent to FE.

BA is congruent to side DE.

AC is congruent to side DF.

The two triangles are similar.

ΔCBA-ΔFED is the similarity statements describe the relationship between the two triangles

Hence, the similarity statements which describe the relationship between the two triangles is ΔCBA-ΔFED.

To learn more on Triangles click:

https://brainly.com/question/2773823

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A function is described by the equation f(x) = 2x + 3. The replacement set for the independent variable is (2,4,6,8). Which set is the corresponding set for the dependent variable?​

Answers

Answer:  {7, 11, 15, 19}

Write the values in the order shown. The curly braces indicate a set.

=================================================

Explanation:

The replacement set for the independent variable is {2,4,6,8}

This means we'll plug x = 2, x = 4, x = 6, and x = 8 into the function one at a time to find the corresponding y = f(x) value.

---------

Plug in x = 2 to find that,

f(x) = 2x+3

f(2) = 2*2+3 ... replace every x with 2

f(2) = 4+3

f(2) = 7

If the input is x = 2, then the output is y = 7. Therefore, the '2' in the domain corresponds to '7' in the range.

If you repeat those steps for x = 4, then you should find that f(4) = 11. Do the same thing for x = 6 and it should lead to y = 15. The last value in the range is y = 19 which corresponds to x = 8.

In short, the domain {2,4,6,8} corresponds to the range {7, 11, 15, 19}

Usually with sets, order doesn't matter. However, in this case, the order is important because we need to match the 2 with the 7, the 4 with the 11, etc.

solve for X. Assume that lines which appear tangent are tangent

Answers

Answer:

C

Step-by-step explanation:

Two-Way Tables Laura wants to know whether the top golfers in the world tend to be American. To do this, she searches the Internet to find the current top-20 male golfers and top-20 female golfers and records whether they are American. This two-way table shows her data. Keep the two way table window open as you work on the tasks. Part A Find the relative frequencies by rows.

Answers

Answer:

                      Male                   Female            Total

American 11/17 = 0.647  l 6/17 = 0.353 l 17/17 = 1.000

Non-American 9/23 = 0.391 l 14/23 = 0.609 l 23/23 = 1.000

Step-by-step explanation:

In Triangle XYZ, measure of angle X = 49° , XY = 18°, and

YZ = 14°. Find the measure of angle Y.

Answers

Answer:

There are two choices for angle Y: [tex]Y \approx 54.987^{\circ}[/tex] for [tex]XZ \approx 15.193[/tex], [tex]Y \approx 27.008^{\circ}[/tex] for [tex]XZ \approx 8.424[/tex].

Step-by-step explanation:

There are mistakes in the statement, correct form is now described:

In triangle XYZ, measure of angle X = 49°, XY = 18 and YZ = 14. Find the measure of angle Y:

The line segment XY is opposite to angle Z and the line segment YZ is opposite to angle X. We can determine the length of the line segment XZ by the Law of Cosine:

[tex]YZ^{2} = XZ^{2} + XY^{2} -2\cdot XY\cdot XZ \cdot \cos X[/tex] (1)

If we know that [tex]X = 49^{\circ}[/tex], [tex]XY = 18[/tex] and [tex]YZ = 14[/tex], then we have the following second order polynomial:

[tex]14^{2} = XZ^{2} + 18^{2} - 2\cdot (18)\cdot XZ\cdot \cos 49^{\circ}[/tex]

[tex]XZ^{2}-23.618\cdot XZ +128 = 0[/tex] (2)

By the Quadratic Formula we have the following result:

[tex]XZ \approx 15.193\,\lor\,XZ \approx 8.424[/tex]

There are two possible triangles, we can determine the value of angle Y for each by the Law of Cosine again:

[tex]XZ^{2} = XY^{2} + YZ^{2} - 2\cdot XY \cdot YZ \cdot \cos Y[/tex]

[tex]\cos Y = \frac{XY^{2}+YZ^{2}-XZ^{2}}{2\cdot XY\cdot YZ}[/tex]

[tex]Y = \cos ^{-1}\left(\frac{XY^{2}+YZ^{2}-XZ^{2}}{2\cdot XY\cdot YZ} \right)[/tex]

1) [tex]XZ \approx 15.193[/tex]

[tex]Y = \cos^{-1}\left[\frac{18^{2}+14^{2}-15.193^{2}}{2\cdot (18)\cdot (14)} \right][/tex]

[tex]Y \approx 54.987^{\circ}[/tex]

2) [tex]XZ \approx 8.424[/tex]

[tex]Y = \cos^{-1}\left[\frac{18^{2}+14^{2}-8.424^{2}}{2\cdot (18)\cdot (14)} \right][/tex]

[tex]Y \approx 27.008^{\circ}[/tex]

There are two choices for angle Y: [tex]Y \approx 54.987^{\circ}[/tex] for [tex]XZ \approx 15.193[/tex], [tex]Y \approx 27.008^{\circ}[/tex] for [tex]XZ \approx 8.424[/tex].

Give the exact value of the trigonometric function.

sec([tex]\frac{\pi }{2}[/tex])
A. 1
B. -1
C. 0
D. undefined

Please explain your answer, thank you! I'll give brainliest.

Answers

Answer:

D) undefined

Step-by-step explanation:

we would like to simplify the following

[tex] \displaystyle \sec \left( \frac{\pi}{2} \right) [/tex]

remember that, sec is the recipocal of cos

so,

[tex] \displaystyle \frac{1}{\cos \left( \frac{\pi}{2} \right) }[/tex]

by unit circle we acquire

[tex] \displaystyle \frac{1}{0}[/tex]

remember that, dividing by 0 is undefined

hence,

[tex] \displaystyle \sec \left( \frac{\pi}{2} \right) =\rm undefined [/tex]

agles
1. Find the measure of arc ABC
110 °


Answers

Answer:

Arc ABC = 250°

Step-by-step explanation:

m<AOB = 110° (given)

Based on the central angle theorem, central angle m<AOB equals the intercepted arc AB

Therefore,

m<AOB = measure of arc AB = 110°

Thus:

Arc ABC = 360° - arc AB (Full circle = 360°)

Arc ABC = 360° - 110°

Arc ABC = 250°

Review the graph of function f(x). On a coordinate plane, a curve starts at closed circle (negative 2, 2), curves down to (negative 1, 1), and curves up through (0, 2) to closed circle (3, 6). Using the extreme value theorem, what are the minimum and maximum values of f(x)? minimum value = 1; maximum value = 6 minimum value = 2; maximum value = 6 minimum value = –1; maximum value = 3 minimum value = –2; maximum value = 3

Answers

Answer:

A. minimum value = 1; maximum value = 6

Step-by-step explanation:

Correct on Edge 2021

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