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ad-work [718]
3 years ago
5

Which graph represents the solution set of y= x^2 - 4 and x + y + 2 = 0?

Mathematics
2 answers:
iren2701 [21]3 years ago
8 0

Answer:

is graph b point A between -2,-1 point B 2

Step-by-step explanation:

Gnesinka [82]3 years ago
7 0

Answer:

graph b

Step-by-step explanation:

i did it

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Ella is a landscape photographer. One weekend at her gallery she sells a total of 52 prints for a total of $2,975. A small paint
rosijanka [135]
<h2>Answer:37 paintings of $50 and 15 paintings of $75</h2>

Step-by-step explanation:

Let x be the number of paintings Ella sells for $50.

Let y be the number of paintings Ella sells for $75.

Profit made through $50 paintings is 50x

Profit made through $75 paintings is 75y

So,total profit is given by 50x+75y

It is given that total profit is $2975

So,50x+75y=2975      ..(i)

Given that the total number of prints is 52

So,x+y=52      ..(ii)

using (i) and (ii),

50x+75(52-x)=2975\\50x+3900-75x=2975\\25x=925\\x=37

y=52-x=52-37=15

7 0
3 years ago
Read 2 more answers
A motor is 85.4 % efficient: that is, the output is 85.4 % of the input. What is the input if the motor delivers 10.75 hp. ( Rou
Ludmilka [50]

Answer:

12.6 hp

Step-by-step explanation:

Represent the input by n.                              10.75 hp

Then 0.85n = 10.75 hp, and n (the input) is --------------- = 12.6 hp

                                                                           0.85

5 0
4 years ago
Please help me!!!! I will give brainliest!
lisabon 2012 [21]
36=90/100 x a; 36=9/10 x a; a= 36/(9/10); a=360/9; a= 40

The Ice Cream shop served 40 customers.
5 0
3 years ago
Read 2 more answers
Estimate 51.62+36.557 by first rounding each number to the nearest whole number
Ira Lisetskai [31]

Answer:

89

Step-by-step explanation:

51.62=52

36.557=37

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

52+37=89

8 0
3 years ago
Directions: Use a proportion to solve the problem.
spin [16.1K]
So, since she weights 6 times more on earth, say for every lb on the moon  is 6lbs on earth then.

now, if 1lb on the moon is 6lbs on earth, how much is 90 earth lbs on the moon?

\bf \begin{array}{ccll}&#10;moon&earth\\&#10;\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\&#10;1&6\\&#10;m&90&#10;\end{array}\implies \cfrac{1}{m}=\cfrac{6}{90}\implies \cfrac{1\cdot 90}{6}=m
5 0
4 years ago
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