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Eddi Din [679]
2 years ago
8

HURRY! What is the value of x in the diagram? Please leave an explanation fr the answer

Mathematics
1 answer:
melomori [17]2 years ago
6 0
X = -15 because first u move the ax’s to one side so it would be 3x-5x=25+5 then u calculate each side 3x-5x= -2x and 25+5=30 so -2x=30 and then u divide both sides by -2 and -2/-2 cancels out and 30/-2 equals -15 (I hope his helps) :))
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14 eggs will be needed
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3 years ago
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A gallon of paint can cover 400 square feet. To the nearest half gallon, find how much paint will be needed to paint two coats o
nlexa [21]
I think that this is right, but I assumed that the ceiling has the same dimensions as the wall you would need 4 gallons for 2 coats.
Work:
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3 0
3 years ago
What is the perimeter, to the nearest hundredth of a unit, of the the
AnnyKZ [126]

Answer:

20.31 units to the nearest hundredth.

Step-by-step explanation:

We need to use the distance formula between the points and find their sum.

D1 = √((2-2^2 + (1+3)^2)  = √16 = 4

D2 =  √(-1-2)^2 + (3-1)^2) = √13

D3 = √(-3+1)^2 + (0-3)^2) =  √13

D4 = √(-3+3)^2 + (-4)^2) = √16 = 4.

D5 = √(-3-2)^2 + (-4+3)^2) = √26.

Perimeter = D1+D2+D3+D4+D5

=  4+√13+√13 + 4 +√26

= 20.31 units.

4 0
3 years ago
1. The function f(x) = –0.05(x2 – 26x – 120) represents the path coming out of the cannon. If x is the horizontal distance from
LenaWriter [7]
Question 1

f(x) represents the distance of the cannon from the ground

Question 2

When f(x) = 0, there will two values of 'x'. The point on the positive x-axis where the graph crosses represent the point where the cannon hits the ground.

Question 3

Yes, it would. By knowing the spot where the cannon will hit the ground, we can set the net at the spot.

Question 4

f(x) = 0
-0.05 (x² - 26x -120) = 0
x² - 26x - 120 = 0

Question 5

Please refer to the table attached below

Question 6

The value of p and q that gives the correct factors are -30 and 4 since it gives p+q = -26

Question 7

Factorising the equation completely

-0.05 (x² - 26x - 120) = 0
-0.05 (x+4) (x-30) = 0 
(x+4) (x-30) = 0

Question 8
 
Solving the equation

x+4 = 0 and x-30=0
x=-4 and x=30 

Question 9 

The roots of the equation is x = -4 and x = 30

Question 10

Please refer to the third graph

Question 11

Yes

Question 12

The negative zero means the initial distance of the cannon, where it was fired from

Question 13

The distance between x = -4 and x = 30 is 34 units. If the cannon was fired from the point when x = -4, the cannon will hit the ground again 34 units from the point it was fired from. If Nik put a net 30 units from the firing point, the cannon will fly pass it. 

7 0
3 years ago
Can someone please help me on this math problem!?
Levart [38]
Since BD and AC are diagonals of rectangle ABCD . ..hence they are equal..
AC = BD
3x+4 = 5x-50
2x = 54
x = 27
4 0
3 years ago
Read 2 more answers
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