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Anastaziya [24]
3 years ago
8

Please Help me. What is the answer?

Mathematics
1 answer:
vekshin13 years ago
5 0

Answer:

-11

Step-by-step explanation:

Triangle ABC

SO,

AB = AC +BC

x + 8 = 2x -5 + (BD + DC)

x + 8 = 2x-5 + 10 +14

x + 8 = 2x + 19

2x - x = -19 + 8

x = -11

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How to divide 4 digits by 2 digits
Tresset [83]

Put the 4 digit number inside the division bracket  and the 2 digit number on the outside( left).

let's say the 2 digit number is 34

and let's say that the 4 digit number is 5678


    the set up would look like this

    34  / 5678

1. you want to look at the first two numbers of the dividend and see if 36 goes into it. This means: what number multiplied 36 will equal or be less than 56.

         36 goes into 56 once

2. you,d then and 1 to your answer and subtract 36 from 56


56-36 = 20


3. now you will bring the next number down that you haven't used, which is seven.


4. 36 goes into 207 how many times?

      5times

5 multiplied by 36 is 180 ( is couldn't be 6 because 36 multiplied by 6 equals 216 which is greater than 207)

6. you'd add 5 to your answer ( so far you have : 15 )

and you'd subtract 180 from 207

207-180= 270

you'd bring down a number a repeat.


I hope this helped ;)




             


3 0
3 years ago
Find the greatest common factor: 9a3bc2 + 12ac4 + 15a2b3c 3abc 15a3b3c4 3ac 9a2b2c2
VARVARA [1.3K]
The greatest common factor is 3abc
8 0
3 years ago
What is the answer to this question below guys.
Mashutka [201]

Answer:

Step-by-step explanation:

6+8=14

7 0
3 years ago
Y = 5x + 7<br> 2x + y = -5<br> Are the equations parallel,<br> perpendicular, or neither?
Nezavi [6.7K]

Lines are neither perpendicular nor parallel.

Step-by-step explanation:

Step 1:

In equation 1, Y = 5X + 7

In equation 2,  Y = -2X -5

Step 2:

Slope Intercept form Y =mX +c

Where m = Slope

Slope of line 1 = 5

Slope of line 2 = -2

m1  is not equal to m2. Hence it is not parallel.

m1  × m2 is not equal to -1. Hence they are not perpendicular.

3 0
3 years ago
Find the missing side.<br> 6 is A^2 <br>10 is B^2<br> what is the missing side​
topjm [15]

Answer:

8

Step-by-step explanation:

This is a right triangle, which fits the Pythagorean Theorem, a^2 +b^2 = c^2. The variables a, b, and c all are sides of the triangle, while a and b are the two legs and c is the hypothenuse.

In this problem, we see that 6 and x are the legs and 10 is the hypothenuse.    We put 6 as "a" and x as "b" (but it doesn't matter which is a and b) and 10 is c. Therefore, we have the equation:

6^2 + x^2 = 10^2

which further simplifies to:

36 + x^2 = 100

x^2 = 64

and so x would equal 8 (or -8, but it is impossible to have a side length of -8).

Therefore, the missing side is 8.  

7 0
3 years ago
Read 2 more answers
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