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iren2701 [21]
3 years ago
9

I need help with my geometry homework.

Mathematics
1 answer:
Ivan3 years ago
7 0

Answer:

a is true b is false c is false

Step-by-step explanation:

You might be interested in
Twice a number, added to seven, is the same
eduard

Answer:

Your number is -10

Hope this helps :)

Step-by-step explanation:

Let x be the number

 

Twice a number is 2x

Added to 7 means + 7 so 2x + 7

Is means =

2x+7=

 

At this point I have to assume you mean

"is the same as three subtracted from THE SAME number"

Otherwise, rather than a number, we end up with the

equation of a line....

 

2x + 7 = x - 3   subtract x from both sides

x + 7 = -3        subtract 7 from both sides

x = -10

 

Your number is -10

 

Check:  2x+7 = x-3

           2(-10) + 7 = -10-3

           -20+7 = -13

            -13 = -13

            The answer fits the parameters of the problem.

6 0
2 years ago
How to change fraction in decimal example 108/30 change it in decimal
pogonyaev

Answer:

You divide

Example:

- 5/10= 0,5

-108/30= 3,6

7 0
3 years ago
Read 2 more answers
What is 4[2(21-17)+3]
vagabundo [1.1K]
To solve this problem, we should understand how order of operations works. Perhaps the best way to show you this would be solving the problem with all of the work clearly labeled?

=4[2(21-17)+3]    Original Problem
=4[2(4)+3]           Solved the Parentheses
=4[8+3]                Multiplied the 2 and 4
=4[11]                   Added the 8 and 3
=44                       Multiplied the 4 and 11

An easy way to remember this is PEMDAS, which is an acronym for Parentheses, Exponents, Multiplication/Division, and Addition/Subtraction. Although it will not apply in this scenario (because we have brackets), it will come in handy for many others like this.

Using all of the information above, we can conclude that this expression equals 4.  

6 0
3 years ago
This is crazy stuff to me trying to help my child
puteri [66]
I think it is hexagon. It says which polygon at the bottom, and hexagons have six sides like the figure above.
8 0
3 years ago
Identify the graph of the line 3x-7y=-21
AveGali [126]
Y = (3x-21)/7
the picture is the graph

5 0
3 years ago
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