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AlekseyPX
2 years ago
14

PLEASE HELPPPP !!!!!!!!!

Mathematics
2 answers:
Brilliant_brown [7]2 years ago
3 0

Answer:

negative 7

Step-by-step explanation

malfutka [58]2 years ago
3 0

Answer:

x=-7

Step-by-step explanation:

3/4(x+21)=10 1/2

3/4x+15 3/4 = 10 1/2

(I put them in improper form)

3/4x+63/4 = 42/4

3/4x=-5.25

divide -5.25 by 3/4= x=-7

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Find the volume of a right prism with height h=10 cm, if :
kozerog [31]

Answer:

Step-by-step explanation:

          So, to begin the altitude of a triangle is the line segment that starts at the top vertex and ends at the base of the triangle forming a right angle. If we want to find the volume of the of the prism the formula is Ab*h. This is the area of the base, times the height of the prism. This is true because a simple expination of volume is a box filled with stuff. To count how much stuff we have in the box the formula uses layers. Volume is just like a lot of 2 dimential areas stacked on top of each other. So taking the area of the flat base and puting it on top of it self 10 time will give you the same prism thats in the problem. Now we just have to apply the consept. Since the base is a triangle and we need to find the area. The formula is b*h*1/2. Base time height times 1/2. The reason for this is also simlar to area. A triangle is half of a square, so to find the area of a square the formula is L*W. Since a triangle is half of a square you just multipuly it by 1/2. When solved you will get 4*3.5*1/2=7, the area of the base is 7 cm^2. Now appling the topic above we stack the base 10 times, so 7*10=70. In conculstion the volume of the prism would be 70 cm^2.

6 0
2 years ago
Which of the following is the y-intercept of the line with the equation 2y=6x+4
algol [13]
It is y = 3x + 2, which means the y-intercept is 2. :)
8 0
3 years ago
What is a times b times c =0 and a and b are integers greater than 10, what must c equal
GuDViN [60]

A x B x C = 0 Where A and B are integers > 10 Any value multiplied by 0 = 0 Therefore C = 0

5 0
3 years ago
Choose the correct simplification of the expression a^7b^8/a^4b^4
Alex787 [66]
The answer is B: a^3b^4<span>

Proof:
Simplify the following:
(a^7 b^8)/(a^4 b^4)

Combine powers. (a^7 b^8)/(a^4 b^4) = a^(7 - 4) b^(8 - 4):
a^(7 - 4) b^(8 - 4)

7 - 4 = 3:
a^3 b^(8 - 4)

8 - 4 = 4:
Answer:  a^3 b^4

PS: I just wish that you put the equation down as it's intended i.e.
a^7b^8/a^4b^4 is not the same as (<span>a^7b^8)/(a^4b^4)</span>
</span>
4 0
3 years ago
Read 2 more answers
In a study of towns there was a positive correlation between the number of mail boxes and number of traffic lights in a town. Wh
Mariulka [41]
<span>B population is correct......
</span>
5 0
3 years ago
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