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3 years ago

Please help! i’ll mark you brainlist if it’s correct. it’s probably easy but i’m terrible at math

Mathematics

2 answers:

Step2247 [10]3 years ago

7 0

Answer: c

Step-by-step explanation:

eduard3 years ago

4 0

The 3rd one is in standard form

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Please help and thank you

tatiyna

Answer:

$b_{1}=\frac{2A}{h}-b_{2}$

Step-by-step explanation:

Given: $A=\frac{1}{2}(b_{1} +b_{2})h$

We need to completely isolate $b_{1}$ to solve.

$A=\frac{1}{2}(b_{1} +b_{2})h$

$A=(\frac{1}{2}b_{1} +\frac{1}{2} b_{2})h$

$A=\frac{1}{2}b_{1} h+\frac{1}{2}b_{2}h$

$-\frac{1}{2}b_{1}h+A=\frac{1}{2}b_{2}h$

$-\frac{1}{2}b_{1}h=-A+\frac{1}{2}b_{2}h$

$-\frac{1}{2}b_{1}=\frac{-A}{h}+\frac{1}{2}b_{2}$

Finally, multiply both sides by -2 to completely isolate $b_{1}$ .

$b_{1}=\frac{2A}{h}-b_{2}$

5 0

3 years ago

Read 2 more answers

PLEASE HELP What is the value of x?

AleksAgata [21]

The angles inside a triangle add up to 180°
The 3rd angle is supplementary to (6x+1)°
Supplementary means they make a straight line (i.e 180°)

1st angle = 79°
2nd angle = (2x+10)°
3rd angle = 180° - (6x+1)°

180 = 79 + (2x+10) + 180 - (6x+1)
180 = 79 + 2x + 10 + 180 - 6x - 1
combine like terms
180 - 180 - 79 - 10 + 1 = 2x - 6x
-88 = -4x
-88/-4 = x
22 = x

3 0

3 years ago

Https://brainly.com/question/20878368

kodGreya [7K]

Answer:

Step-by-step explanation:

4 0

2 years ago

4/9 + 1/3 = ?? Simplify answer fully

galben [10]

Multiply the second fraction by three.

4/9 + 3/9 = 7/9

5 0

3 years ago

Find DF AC=600 CB=480 AB=360

Mandarinka [93]

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6 0

3 years ago