The coordinates of the endpoints of QR are Q (8, 2) and R (5, 7). Which measurement is closest to the length of QR in units? A 5. 8 units B 5 units C 4 units D 3. 9 units

Answer:

qr is = to 5.83 so its closest to 5.8

so A my guy brainlyness please

Step-by-step explanation:

[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ Q(\stackrel{x_1}{8}~,~\stackrel{y_1}{2})\qquad R(\stackrel{x_2}{5}~,~\stackrel{y_2}{7})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ QR=\sqrt{(~~5 - 8~~)^2 + (~~7 - 2~~)^2} \implies QR=\sqrt{( -3 )^2 + ( 5 )^2} \\\\\\ \implies QR=\sqrt{ 9 + 25 } \implies QR=\sqrt{ 34 }\implies QR\approx 5.8[/tex]

Lupita rides a taxi that charges a flat rate of $6. 75 plus $3. 20 per mile. If the taxi charges Lupita $40. 03 in total for her trip, how many miles is her ride?


Enter your answer in the box as a decimal to the nearest tenth of a mile.

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Solve each function for the given value.

Equation Given Value
Solution


a.) y = 15x - 50
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b.) y = 1/2x + 20
when x = 50


c.) y = (3x)2 - 36
when x = 3


d.) y = 2.5x + 3.8
when x = 0.66

PLS HELP ME I NEED AN ANSWER ASAP!!!!! I HAVE RSM ON VALENTINES DAY PLSSSSSSSSSSSSSSS HELP
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A) 7
B) 12
C) 22
D) 49

Break-Even Analysis: Popcorn
The business club is going to sell popcorn at hockey games. Since they are astute business men
and business women, they know that they will not make a profit right away because they have to
pay the cost of buying a popcorn machine. They need to know how many bags of popcorn they
must sell in order to cover the set-up costs. In other words, what is the break-even point for
their popcorn business?
The red and glass popcorn carts often seen at carnivals and fairs costs $450. This is the fixed
cost. Regardless of the number of bags of popcorn they make and sell, the machine cost will not
change.
1. The popcorn, butter, salt, and serving bags cost $15 for every 100 bags of popcorn. What is
the cost per bag for these consumables?
$15 per 100 bags = $.15 per bag
The variable cost changes depending on how many bags of popcorn they make. The more
popcorn they make, the more they spend on popcorn, butter, salt and bags. The variable cost is
$0.15 times the number of bags of popcorn.
The total cost is the variable cost plus the fixed cost.
Total Cost = Variable Cost+Fixed Cost
2. Write an equation for the Total Cost as a function of the number of bags of popcorn made.
Use the notation C(x) for total cost, and let x be the number of bags of popcorn they make.
((x) =115x+450
Each bag of popcorn sells for $1.00. The revenue is the amount of money they receive from
selling bags of popcorn. If they sell 20 bags of popcorn, they will receive $20, since each bag
sells for $1. The revenue they take in is the price per bag of popcorn multiplied by the number of
bags of popcorn sold.
(Price per Item) (Number of Items)
3. Write an equation for the Revenue as a function of the number of bags of popcorn sold. Label
the revenue function R(x).
Revenue =

PLEASE HELP EASY QUESTION Which models represent the sum? AND WILL GIVE BRAINLIEST IF CORRECT

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Connie draws this model to help her solve a problem which expression is represented by Connie's model
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Kathy was building a bed for her dollhouse. She used her bed, which is 3 feet × 5 feet, as a guide. She scaled down the dimensions of her bed by a factor 1/5. What are the dimensions of the model bed she built? (1 point)

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The break-even point occurs when the amount of money they receive from selling popcorn is
equal to the amount of money they spent to make the popcorn. It is when Revenue-Total Cost.
The break-even point tells how many items they must create and sell in order to recover their
expenses.
4. Take the Total Cost and Revenue functions that you developed above, and sketch the graph
of the two functions on one coordinate plane. Label the axes appropriately.
7. Solve the equation R(x)-C(x) for x
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6. To find the break-even point algebraically, write R(x)-C(x).


Picture attached

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Question is in picture down below
PLEASE include explaination

If rectangle ABCD is transformed to create rectangle A’B’C’D’, and the rule used was (x, y) --> (x, -y), which transformation has occurred?

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B) Reflection across the x-axis
C) Rotation of 90° around the origin
D) Translation

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From midnight to 2:00 am, the temperature rose
1.55
1.55°C each hour. If the temperature at midnight was
−
7
−7°C, what was the temperature at 2:00 am?

mathematics 20 points

(ignore my answer i choose), but pls help me
the question says: sal graphed a circle on the grid below.
sal translated the circle 6 units to the left and 7 units up. Which grid shows the result of this translation?
A. B. C. or D.

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please help if you know how to do this, show an explanation please

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Need help ASAP please

If rectangle ABCD is transformed to create rectangle A’B’C’D’, and the rule used was (x, y) --> (x, -y), which transformation has occurred?

A) Reflection across the y-axis
B) Reflection across the x-axis
C) Rotation of 90° around the origin
D) Translation

help me pls thanks! :)