3 years ago

−11b+7=40 solve for b

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

7 0

Answer:

B=-3

Step-by-step explanation:

-11b+7=40

Subtract -7 from both sides

-11b-7=40-7

11b=33

divide by -11

11b/-11=33/-11

-11 and -11 cancel out, leaving you with B=-33/11

thus B=-3

Marizza181 [45]3 years ago

4 0

Answer:

Step-by-step explanation:

subtract 7 on both sides

40-7=33

-11b=33

divide -11 on both sides

b=-3

You might be interested in

What is the value of i5 1 −i i −1

Romashka-Z-Leto [24]

Answer:51

Step-by-step explanation:

5 0

3 years ago

Determine if line AB is tangent to the circle. Please help!!

Ugo [173]

Answer:

B. Tangent

Step-by-step explanation:

Tangent always makes 90 degree angle with the radius. Now in triangle let's see if it's right angled triangle or not.

To confirm if it's a right angled triangle it should follow Pythagoras Theorem.

Which states square of hypotenuse = sum of squares of other two legs

$12 {}^{2} + 16 {}^{2} = 20 { }^{2} \\ 144 + 256 = 400 \\ 400 = 400$

it proves that it's a right angled triangle. Hence AB is a tangent to circle.

7 0

3 years ago

Why does demand equal marginal revenue for perfectly competitive firms

shepuryov [24]

Specifically, price only equals marginal revenue in perfect competition. Price equals MR in perfect competition because your demand curve is horizontal. No matter how much you produce, it always sells at the same price. In other market structures, you can raise or lower prices.

6 0

3 years ago

Write the number 0.464646464646 as a fraction let x=

ira [324]

Answer:

what is x?

Step-by-step explanation:

6 0

3 years ago

PLEASE ANSWER ASAP LOOK AT THE PICTURE DUE IN 2 SECONDS !!!!!!!!!!!!!!

katrin2010 [14]

Answer: x> 30

Good luck !