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N76 [4]
3 years ago
6

Show that the equation 2xcubed + 4x = 3 has a solution between 0 and 1

Mathematics
1 answer:
Alecsey [184]3 years ago
5 0
Try simplifying the equation first. Don't fully understand the question but I hope this helps. 

2x cubed
2x * 2x * 2x = 8x
8x+4x= 12x

12x=3
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hey can someone please help me i don’t understand this? the question says “find the surface area of the rectangular prism.”
ASHA 777 [7]

Answer:

170 in^2

Step-by-step explanation:

you have to find the area of each surface of the square

1) the square on the right side:

5x5=25 in^2

there are 2 of these on opposite sides

2)the of the rectangle facing us;

6x5=30in^2  (5 because 5 is the height)

there are 4 of these

3)add up all the areas

25+25+30+30+30+30=170in^2

6 0
2 years ago
The temperature falls from 10°F to -15° F. What is the difference in these<br> temperatures?
nadya68 [22]

Answer:

the difference is 25

Step-by-step explanation:

to get from 10 to 0 is 10 units and from 0 to -15 is 15

10+15 = 25

8 0
3 years ago
Just this question I've tried but don't understand it
ANEK [815]
I plugged it in to a truncated square pyramid calculator and got v=76
the formula for this shape is V=1/3(A squared+AB+B squared)H.
3 0
3 years ago
two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they
Lerok [7]
Let's make,
mechanic #1's rate = x
mechanic #2's rate = y

* Their rate is dollars per hour ($/hr)

mechanic #1 worked for 20 hours (hr × $/hr = $)
20x = money earned by mech#1

and mechanic #2 worked for 5 hours
5y = money earned by mech#2

together they charged a total of $1150. So the amount of money earned by both mechanics.

20x + 5y = 1150

the sum of the two rates was $95 per hour.

x + y = 95

which means
x = 95 - y

plug (95 - y) in for "x" in the other equation to get everything in terms of one variable.

20(95 - y) + 5y = 1150

solve for y

1900 - 20y + 5y = 1150
1900 - 15y = 1150
-15y = 1150 - 1900
-15y = -750
y = -750/-15
y = 50 $/hr

Now use this to solve for x

x + y = 95
x + 50 = 95
x = 95 - 50
x = 45 $/hr

mech#1 charged 45$/hr
mech #2 charged 50$/hr
7 0
3 years ago
EASYYY QUESTIONNN . What is the value of X?
Flauer [41]
I guess it s 30 irdk

 hope tis helps :D
6 0
3 years ago
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