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zzz [600]
3 years ago
13

Solve both equations and pls show work.. I will mark brainliest

Mathematics
1 answer:
Alexxx [7]3 years ago
8 0

Answer:

7. x = 4

8. x = 10

Step-by-step explanation:

7. The angles are equal to each other so you can do

40 = 12x - 8

48 = 12x

4 = x

8. The angles add up to be 180 degrees so you can combine them and set them equal to 180

6x + 12x = 180

18x = 180

x = 10

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-0.2×-5/7<br><br>please can i have some help
Ksivusya [100]

Answer:

+1/7

Step-by-step explanation:

One approach to evaluating this would be to rewrite it as:

-2        -5  

------ * --------- .  

 10          7   This reduces to:

 2

--------- = +1/7

 2(7)

8 0
4 years ago
6^7 divided by 6^5 leaving answer in index form
statuscvo [17]

Answer:

6²

Step-by-step explanation:

When dividing terms with exponents, the exponents subtract:

6⁷/6⁵ = 6²

3 0
3 years ago
Read 2 more answers
What is the discriminant of 3x2 + 6x = 2?
Softa [21]

Answer:

Discriminant is 60

Step-by-step explanation:

the discriminant of 3x^2 + 6x = 2

To find discriminant , first we write the equation in the form of

ax^2+bx+c=0

3x^2 + 6x = 2

Subtract 2 on both sides

3x^2 + 6x-2=0

a=3, b=6, c=-2

Formula for discriminant is b^2-4ac

Plug in the values

b^2-4ac=(6)^2-4(3)(-2)=60

Discriminant is 60

5 0
3 years ago
The sales tax charged on a $40 dress was $3.20.what is the sales tax rate charged on the dress?
Ulleksa [173]

Answer:

8%

Step-by-step explanation:

3.20 divided by 40 = 0.08

0.08 = 8% therefore $3.20 divided by $40.00 = 8% sales tax

5 0
3 years ago
Need help finding the slope
devlian [24]
The answer is -2/8 if u do y2-y1 and x2-x1 you got -2/8
8 0
2 years ago
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