2 years ago

Translate the phrase into an algebraic expression.The product of 4 and b

Mathematics

1 answer:

Korvikt [17]2 years ago

6 0

Answer:

the answer is 4×b=4b

Step-by-step explanation:

product=×

4×b=4b

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BRAINLIEST ASAP!!!

Anarel [89]

Part A: the radicand is the same as the discriminant, therefore is b2 - 4ac
In 9x^2 - 16x + 60 = 0, a = 9, b = -16, c = 60
so b2 - 4ac =
${b}^{2} - 4ac = {( - 16)}^{2} - 4(9)(60) \\ = 256 - 2160 = 1904 \\ \sqrt{1904} = + 43.63 \: and \: - 43.63$

Part B: Solve 4x^2 + 8x - 5 = 0
What would make 8? (5×2)-2 = 8, so:
(2x+5)(2x-1) = 0
2x+5 = 0
2x = -5
x = -5/2
2x-1 = 0
2x = 1
x = +1/2
So the solutions are: -5/2, +1/2

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2 years ago

Arrange the steps to solve the equation \sqrt(x+3)-\sqrt(2x-1)=-2 solve for x

kirill115 [55]

I hope this helps you

x+3/2x-1=-2

x+3= -2 (2x-1)

x+3= -2.2x-2. (-1)

x+3= -4x+2

x+4x=2-3

5x= -1

x= -1/5

3 0

2 years ago

Solve the formula for one of its variables using addition subtraction and/ or division

Tpy6a [65]

THE ANSWER IS

pi r ^2 / V

or pi r squared over V

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2 years ago

A company buys pens at the rate of $5.50 per box for the first 10 boxes, $4.50 per box for the next 10 boxes, and $3.50 per box

marusya05 [52]

So it is really easy to solve firstly we can see how much does the first 10 boxes make which makes around 55$ obviously. Secondly 45$ for the next 10 boxes.

So for now we can simply calculate that we have spent around 100$ which means 20 boxes. The remaining money left is 77$ so we can buy 77/3.5 = 22 only 22 boxes with that money. Hence a total of 42 boxes.

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3 years ago

Simplify <br> Rewrite the expression in the form z^n<br><br> z^5•z^6= ______

gtnhenbr [62]

Answer:

z²^30

Step-by-step explanation:

This is it enjoy.

4 0

3 years ago