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My name is Ann [436]
3 years ago
14

HELP PLEASE I’m dying

Mathematics
2 answers:
yan [13]3 years ago
7 0
The answer is attached

photoshop1234 [79]3 years ago
5 0
The formula you use is a^2 + b^2 = c^2

Let's set up the equation 30^2 + 42^2 = c^2

a and b are ALWAYS the legs of the triangle. c is ALWAYS the hypotenuse. 
Since you're finding c, the shadow's length, then we leave that as c instead of plugging in a number.

Next, find the square of 30 and 42, to leave the equation: 
900 + 1,764 = x^2
add 900 + 1,764 to make 2,664.

2,664 = x^2 is what we're left with.

All you need to do now is square root 2,664 to find x instead of x^2

x = 51.614

Your answer is the last one, 51.6 feet.  
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What are the solutions to the equation? 3x2+6x=45
daser333 [38]

Answer:

x = 3, -5

Step-by-step explanation:

hope this helps plz give brainiest

4 0
3 years ago
A dairy sells $3 and $5 ice creams. In one day they sell 50 ice creams earning a total of $180. How many of each type of ice cre
murzikaleks [220]
We are going to make simultaneous equations.
x will be our $3 ice cream and y will be our $5 ice cream

Equation1 ----            x + y = 50   (the sum of all the ice creams they sell)
Equation 2 ----          3x + 5y = 180  Sum of all the $3 and $5 ice creams is $180
Since we can't solve for both variables we will put one of the variables in terms of the other.
Take x+y=50 and subtract y from both sides.  (I could have done subtracted x - it did not matter).       Now we have x= ₋ y +50  (negative y +50)
Now I am going to take equation 2 and replace the x with -y +50

3 (-y +50) + 5y = 180   
Now I will use the distributive law on the 3 and what's in the parentheses:
-3y + 150 + 5y = 180
Now I will combine like terms (the -3y and the 5y)
2y + 150 = 180
Now subtract 150 from both sides of the equation
2y = 30
Divide both sides by 2
and get y= 15 They sold 15 ice creams that cost $5 each
Since equation 1  is  x+y=50 we can replace y with 15
x + 15 = 50    Now subtract 15 from both sides  x = 35
Since x represents the $3 ice creams, they sold 35 of those.
Check:
35 X 3 = $105
15 x 5  = +  <u>75
</u>               $180  

8 0
3 years ago
I’ll give you the BRAINLYEST answer if you can help me on this question!
igomit [66]

Answer:

i think its 6

Step-by-step explanation:

im so sorry if its wrong im pretty sure it is

6 0
3 years ago
A customer buys 40 meters of cable. How many centimeters of cable did the customer buy ? (1 meter = 100 centimeters
storchak [24]

Answer:4000

Step-by-step explanation:40 times 100 is 4000

3 0
3 years ago
Read 2 more answers
When machineminushours are used as an overhead costminusallocation base and annual leasing costs for equipment unexpectedly​ inc
Eva8 [605]

Answer:

D. unfavorable fixed overhead flexible minus budget variance

Step-by-step explanation:

As the cost of the equipment is increasing the fixed efficiency and idle capacity variance would be unfavorable resulting in an  unfavorable fixed overhead flexible minus budget variance.

The expenses of the machinery are the fixed indirect costs which result in fixed overhead variances. Since it is related to the working of the machinery it would result in efficiency and idle capacity variances that in turn would give unfavorable fixed overhead of the flexible minus budget variance.

5 0
3 years ago
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