3 years ago

Simplify the expression. 7(3x + 5y) + 4y

Mathematics

1 answer:

Butoxors [25]3 years ago

5 0

=21x + 35y + 4y
= 21x + 39y

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$2,500 for 25 years at<br> 2.75% annual simple<br> interest

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Answer:

4,218.75

Step-by-step explanation:

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P (1 + rY) (Simple Interest)

P (1 + r)Y (Annually Compounded Interest)

Note the two formulas give the same answer for one year. After that, compound interest takes off.

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What is the GCF of 27w^4, 45w^2, 18w^5

solong [7]

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2 years ago

Using the quadratic formula, what is the value of x for x^2-4+5=0

PSYCHO15rus [73]

value of x is: x= i and x= -i

Step-by-step explanation:

We need to find the value of x from $x^2-4+5=0$ using quadratic formula.

The term is: $x^2+1=0$

The quadratic formula is:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\$

Where a = 1, b=0,c=1

Putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{0\pm\sqrt{(0)^2-4(1)(1)}}{2(1)}\\x=\frac{\pm\sqrt{-4}}{2}\\x=\frac{\pm2i}{2}\\x=\pm i$

So, value of x is: x= i and x= -i

Keywords: Quadratic formula

Learn more about quadratic formula at:

#learnwithBrainly

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3 years ago