All categories

3 years ago

PLEASE HELP ASAP WILL GIVE BRAINIEST!!! 25PTS!!!!! GEOMETRY!!!!!

Mathematics

1 answer:

adoni [48]3 years ago

6 0

Its pretty simple really, you have to find b to begin

p.s. you don't need to worry about 8c+5d, that's just there to confuse you.

these to angles : (12b+6)° and (2b+6)° if added together have to equal 180°

so you add the two equations together

(12b+6)+(2b+6)=180

you then solve for b:

add like terms together
12b+2b and 6+6

you then are left with

14b+12=180

then you solve for x

14b+12=180
-12 -12
14b=168
÷14 ÷14
b=12

now that you have B you
plug that in to the original equation opposite of (4a)

(2b+6)

you plug in the number you got for b

2(12)+6
24+6
=30

so now you now the angle opposite of (4a)
and opposite angles have to equal each other so
4a=30

solve for a and that's your answer

4a=30
÷4. ÷4
a=7.5

You might be interested in

Which ordered pair is a solution to the system of inequalities?

xxTIMURxx [149]

Answer:

Option A

Step-by-step explanation:

System of the inequalities is,

y ≥ 2x

y < x + 4

By satisfying these inequalities with the points given in the options we can get the answer.

Option (A). (2, 5)

y ≥ 2x

5 ≥ 2(2)

5 ≥ 4

True.

y < x + 4

5 < 2 + 4

5 < 6

True

Therefore, Option (1) is the answer.

Option (B) (1, 6)

y ≥ 2x

6 ≥ 2(1)

6 ≥ 2

True.

y < x + 4

6 < 1 + 4

6 < 5

False.

Therefore, it's not the solution.

Option (C) (2, 3)

y ≥ 2x

3 ≥ 2(2)

3 ≥ 4

False.

y < x + 4

4 < 2 + 4

4 < 6

True.

Therefore, It's not the solution.

Option (D) (1, 5)

y ≥ 2x

5 ≥ 2(1)

5 ≥ 4

True.

y < x + 4

5 < 1 + 4

5 < 5

False.

Therefore, It's not the solution.

7 0

3 years ago

Please help me <br>why - 9/5-1=-14/5

Jobisdone [24]

Answer:

Step-by-step explanation:

Because you have to take the L.C.M ,

-9/5 - 1

=( -9-5)/5

= -14/5

please

Brain-list it or support me at my U-Tube channel " ZK SOFT&GAMING " I will be thankful

6 0

3 years ago

Read 2 more answers

If f(x) = 5^x2 - 3 and g(x) = x2 - 4x - 8, find (f - g)(x).

kkurt [141]

Answer:

4x² + 4x + 5

Step-by-step explanation:

Note that (f - g)(x) = f(x) - g(x), thus

f(x) - g(x)

= 5x² - 3 - (x² - 4x - 8 ) ← distribute parenthesis by - 1

= 5x² - 3 - x² + 4x + 8 ← collect like terms

= 4x² + 4x + 5

3 0

3 years ago

Plzz help!!!!!!!<br>I 'll give brain liest

Basile [38]

Answer:

Step-by-step explanation:

1. 3x2 + 5x - 4 + 6x2 - x + 7

= combining like terms

= 9x2 + 4x + 3

2. 2y2 - 3y + 6 + y2 - 5y - 1 + (-4) + 2y2 - 2y

= 5y2 - 10y + 1

3. 2x2y - 3xy2 + x2y - 4x2y - 2xy2

= - x2y - 5xy2

4. x2 - y2 + 2x2 - 3xy + 4y2 + 3y2 - 5xy - x2

= 2x2 - 8xy + 6y2

7 0

2 years ago

Solve For Each Variable.

bixtya [17]

The first equation given $6=1-2n+5$

We have to add 1 and 5 to the right side first. We will get,

$6= 6 - 2n$

To get rid of 6 from the right side we have to subtract 6 from both sides.

$6-6 = 6-6-2n$

$6-6 = -2n$

$0=-2n$

To find n we have to move -2 to the other side by dividing both side by -2.

$0/-2 = -2n/-2$

$0= n$

$n=0$

So we have got the required answer for the first question.

The solution is n = 0.

The second equation given,

$8x-2 = -9+7x$

First we have to move 7x to the left side by subtracting it from both sides.

$8x-7x-2 = -9+7x-7x$

$8x-7x-2 = -9$

$x-2 = -9$

Now we have to move -2 to the right side by adding 2 to both sides.

$x-2+2 = -9+2$

$x = -9+2$

$x = -7$

We have got the required answer for the second question.

The solution is x = -7.

The third equation given,

$-8 = -(x+4)$

We have to get rid of that negative sign from both sides. As we have negative sign to both sides we can cancel it out. We will get,

$8=x+4$

Now we have to move 4 to left side by subtracting it from both sides.

$8-4 = x+4-4$

$8-4 = x$

$4=x$

$x = 4$

So we have got the required answer .

The solution is x = 4.

3 0

3 years ago