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2 years ago

Using b=1+r, what does b=

Mathematics

1 answer:

alisha [4.7K]2 years ago

4 0

Answer:

Adding 12 to the circle area is equal to the square area.

s2 = 12 + A

Where

s = side of square

A = area of circle

s2 = 12 + 36

s2 = 48

Solve this for s to get the side length

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A 3-gallon bottle of fabric softener costs $33.24. What is the price per quart?

asambeis [7]

Answer:

$2.77 per quart.

Step-by-step explanation:

There are four quarts in a gallon.

4 * 3 = 12

There are 12 quarts in 3 gallons.

$\frac{price}{quart} =\frac{33.24}{12}=\frac{33.14/12}{12/12}=\frac{2.77}{1}=\boxed{2.77}$

The price per quart should be $2.77.

Hope this helps.

8 0

2 years ago

Identify the values a, b, and c is the first step in using the quadratic formula to find the solution(s) to a quadratic equation

zlopas [31]

The values are a = 7, b = -9, c = -18.

Step-by-step explanation:

The given quadratic equation is $7x^{2} - 9x = 18$

The general form of the quadratic equation is $ax^{2} + bx + c = 0$

where,

a is the coefficient of x².
b is the coefficient of x.
c is the constant term.

Now, you have to modify the given quadratic equation similar to the general form of quadratic equation.

So, bring the constant term 18 to the left side of the equation for equating it to zero.

⇒ $7x^{2} - 9x - 18 = 0$

Compare the above equation with general form $ax^{2} + bx + c = 0$

⇒ a = 7

⇒ b = -9

⇒ c = -18

Therefore, the values of a, b, and c are 7, -9 and -18.

7 0

3 years ago

Read 2 more answers

A math class is having a discussion on how to determine if the expressions 4x-x+5 and 8-3x-3 are equivalent using substitution.

docker41 [41]

Okay. In my opinion, all the class has to do is simplify the expressions and compare. But they want to substitute instead.

Well then.

First, let's notice that these are linear expressions, meaning that if they are equivalent then all their values match up.

Number 1 is not a good one. Just because they're both positive doesn't mean anything; they have to be the same.

This also eliminates 3.

Number 2 is a good one, but it's not as reliable. If, for instance, the two expressions are not equivalent and you get lucky enough to pick that one value they intersect at (or have in common), then you'd be wrong when you say they are equivalent.

Number 4 makes the most sense because if both expressions are equivalent, then every value matches up. If not, then only one will. So having two values to substitute will most definitely answer the class question.

Hope this helps, let me know if I messed up! ;)

5 0

3 years ago

Read 2 more answers

Can help you me pl2sssss

beks73 [17]

Answer:

Answer:

The range is 15

Explanation:

The box and whisker plot is from 5 to 20

The range is: