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Zigmanuir [339]
3 years ago
6

Find the surface area of the rectangular prism. 3 ft. 9 ft. 5 ft. [? ] sq ft.

Mathematics
1 answer:
dalvyx [7]3 years ago
6 0

Answer:

174 ft^2

Step-by-step explanation:

2(3*9)+2(5*9)+2(5*3)

= 54 + 90 + 30 = 174 ft^2

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How do i factor 3x²-41x+110
Vesnalui [34]
Break the expression into two groups, then if you factor out what you need to do, then factor out the common term, you'll end up with ( 3x - 11 ) ( x - 10 )
6 0
4 years ago
Find two numbers, if Their sum is −7 and their difference is 14
Schach [20]

let those numbers be x and y

According to your question

x + y = -7

x - y =14

adding both equations

2x = 7

or x = 7/2

substitute value of x in either equation

y = -21/2

So,

x= 7/2

y=-21/2

Hope this helps!

Thanks

7 0
4 years ago
Solve each system of equations using the elimination method<br><br> 3x+8y=2<br> 4x-2y=-10
LenaWriter [7]

x = -2

y = 1

let's multiply second equation by 4 to get a common coefficient of y variable.

16x-8y=-40

add the equations

3×+8y=2

16x-8y=-40

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

3x+16x = -38

19x = -38

x = -2

substitute x

3×-2 + 8y = 2

-6 + 8y = 2

8y = 2+6

y = 1

check the answer

-6+8 = 2

-8-2= -20

8 0
3 years ago
The relation that is represented by the equation y = 45 – 3x has the domain {5, 7, 9, 11}. Which of the following sets is the ra
RideAnS [48]
D = {5; 7; 9; 11}
y = 45 - 3x
substitute the values of x from the domain to the equation:

for x = 5: y = 45 - 3 · 5 = 45 - 15 = 30for x = 7: y = 45 - 3 · 7 = 45 - 21 = 24for x = 9: y = 45 - 3 · 9 = 45 - 27 = 18for x = 11: y = 45 - 3 · 11 = 45 - 33 = 12
Answer: The range is { 12; 18; 24; 30}.

6 0
3 years ago
You find that the product of 67 and 5 is 335. How can you use addition to check if you are correct? How can you use division to
daser333 [38]

Answer:  Well, there is two ways for addition and two ways for division. either Add 67 5 times (67 + 67 + 67 + 67+ 67) to get 335 or add 5 67 times (5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 etc.) to get 335, And for division (my favorite part) Either get 335 and see if 67 can be multiplied to get 3, 33, or 335. and if either 3, 33, or 335 is to big subtract what you get when you multiply (Enter Number) with 67 to get anything remotely close to 3, 33, or 335. (NOT MORE THAN 3, 33, OR 335 ONLY EXACT OR LESS THAN) or do the exact same with 5.

Step-by-step explanation:

8 0
3 years ago
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