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stealth61 [152]
3 years ago
9

PLEASE HELP ME I NEED THIS REALLY BAD ALL MULT CHOICE PLEASE SHOW SOME WORK

Mathematics
2 answers:
aivan3 [116]3 years ago
6 0

b. 24.4. Using a squared + b squared = c squared you get 24.4

lyudmila [28]3 years ago
4 0
Pythagoras theorem a^2 + b^2 = c^2
Answer is B.
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What is the equation of the line
tiny-mole [99]
The correct answer is:  [D]:  " y = - 4x − 13 " .
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Explanation:
_____________________________________________________

All the answer choices given are written in "point-slope format" (also known as "slope-intercept format" — that is:  " y = mx + b" .

All of the answer choices given have a slope of "-4" ; that is:  "m = -4" .
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          The only answer choice with the equation that passes through point
"(-3, 1)" — that is,  when "x = -3, y = 1"   — is:
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                     Answer choice:  [D]:  " y = - 4x − 13 " .
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In the equation:  " y = - 4x − 13 " ; when  "x = - 3, y = 1" .
____________________________________________________
Given:  " y = - 4x − 13 " ;

↔   - 4x − 13 = y  ;

Plug in "(-3)" for "x" ; and see that "y = 1" ;

         -4(-3) − 13 = y  ;

          12 − 13 = y = -1  ;
______________________________
So, when x = -3, y = 1 .
_________________________________________
The correct answer is:  [D]:  " y = - 4x − 13 " .
___________________________________________
Consider choice:  [A]:  " y = - 4x + 13 " ;
Substitute "(-3)" for "x" and see if "y = -1" ;
  -4(-3) + 13 = y ;  12 + 13 = 25 ; NOT "-3" .
______________________________________
Consider choice:  [B]:  " y = - 4x + 7 " ;
Substitute "(-3)" for "x" and see if "y = -1" ;
  -4(-3) + 7 = y ;  12 + 7 = 19 ; NOT "-3" .
______________________________________
Consider choice:  [C]:  " y = - 4x − 7 " ;
Substitute "(-3)" for "x" and see if "y = -1" ;
  -4(-3) − 7 = y ;  12 − 7 = 9 ; NOT "-3" .
___________________________________________
This leaves us with "Answer choice: [D]:  " y = - 4x − 13 " ; the only remaining answer choice; which we have already confirmed is correct; so we do not need to check.
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Hope this helps!
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4 0
3 years ago
College student makes decorative Styrofoam Lions and Husky's which she sells each year. Each one uses 8 oz of Styrofoam and take
Travka [436]

Answer:

She should make 122 Styrofoam lions and 268 Styrofoam Husky's

The maximum profit, she makes is  $1109

Step-by-step explanation:

The given information are;

The volume required to make each lion = 8 oz

The time it takes to make each lion = 35 minutes

The amount of profit each lion brings = $2.50

The volume required to make each Husky = 12 oz

The time it takes to make each Husky = 20 minutes

The amount of profit each Husky brings = $3

Let the number of lion Styrofoam cups she makes = x

Let the number of Husky Styrofoam cups she makes = y

Therefore, we have;

x × 35 + y × 20 = 9650..........(1)

x × 8 + y × 12  = 3840.............(2)

Dividing equation (2) by 8 and making x the subject, we get;

x × 8/8 + y × 12/8  = 3840/8

x + 4/3·y = 480

x = 480 - 4/3·y

Substituting the value of x in equation (1) gives;

(480 - 4/3·y) × 35 + y × 20 = 9650

16800 - 80/3·y = 9650

y = 268.125

x = 480 - 4/3·y  = 480 - 4/3×268.125 = 122.5

Therefore, she can make 122 Styrofoam lions and 268 Styrofoam Husky's

The maximum profit, she makes is therefore given by the following equation;

The maximum profit = 122 × 2.5 + 268 × 3 = $1109.

5 0
3 years ago
Which point is the vertex of the quadratic function f(x)=x2−6x+8?
olya-2409 [2.1K]
(3,-1)
It needs to be written in standard form before you try to solve it.

4 0
4 years ago
Read 2 more answers
Write an equation in slope-intercept form of the line that passes through the given point and is parallel to the graph of the gi
sasho [114]
Equation of a line passing through point (x1, y1) with slope m is given by y - y1 = m(x - x1)
For parallel lines, the slope of the required line is equal to the slope of the given line.
x = -3 is a vertical line, therefore, the required line will also be a vertical line since they are parallel.
Since the required line passes through point (4, 2), the equation of the required line is x = 4.
7 0
3 years ago
Rafi has a board of 15 1/2 feet long. He cut three pieces of the board that are each 3 7/8 feet long. How much of the board is l
Bumek [7]
3 7/8 is left.

multiple 3 7/8 by 3 since there's 3 pieces cut.
then subtract 15 1/2 by 11 5/8 (the sum of the 3 boards) and you get your answer.
6 0
3 years ago
Read 2 more answers
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