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3 years ago

9

Help I WILL GIVE BRAINLIEST

1 answer:

const2013 [10]3 years ago

8 0

Answer:

16.6

Step-by-step explanation:

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D = b^2 -4ac solve for a 2/3 (x-18y) = 6y solve for x

seropon [69]

Answer:

a = $\frac{b^2-d}{4c}$

x = 27y

Step-by-step explanation:

Order of Operations: BPEMDAS

<u>Question 1</u>

Step 1: Write out discriminant

d = b² - 4ac

Step 2: Subtract b² on both sides

d - b² = -4ac

Step 3: Divide both sides by -1

b² - d = 4ac

Step 4: Divide both sides by 4c

a = $\frac{b^2-d}{4c}$

<u>Question 2</u>

Step 1: Write out equation

2/3(x - 18y) = 6y

Step 2: Distribute parenthesis

2/3x - 12y = 6y

Step 3: Isolate <em>x </em>by adding 12y on both sides

2/3x = 18y

Step 4: Divide both sides by 2/3

x = 27y

7 0

2 years ago

4. Which term of the AP:3, 8, 13, 18,...,is 78?

givi [52]

Step-by-step explanation:

The first term of the AP (a) = 3

and common difference (d) = 8-3= 5

therefore, a+(n-1)d = 78

=> 3+(n-1)5= 78

=> n-1=75/5

=> n-1 = 15

=> n= 16

16th term of the AP is 78

6 0

3 years ago

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( ! <br> ILL GIVE 40 POINTS .

igomit [66]

66° 44 and 70 make 114. 180 minus 114 makes 66

3 0

3 years ago

Answer questions 10 and 11 based on the information below.

ollegr [7]

Answer:

10. As the temperature increases the number of people increases.

Step-by-step explanation:

Because its better to go to a pool when its hot.

sry i dont know 11 :(

5 0

3 years ago

Read 2 more answers

In the triangle abc the side length side are bc=14 and ac=7 whats b

olga2289 [7]

hope this helps you mate

8 0

3 years ago