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3 years ago

9

What is the easiest method to solve this equation?

2 answers:

Gennadij [26K]3 years ago

4 0

Using the quadratic equation would be the easiest

Kryger [21]3 years ago

4 0

Answer: C (Quadratic Formula)

Explanation:

No reason really. No way to factor by using “nice” numbers. Isolating the variable (e.g. completing the square) gives us “complicated” fractions. It therefore can’t be D. The answer is C

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What is three plus fourteen

EleoNora [17]

The correct answer is 17

5 0

3 years ago

In your own words, describe the process of multiplying binomials using the FOIL method. You can either write a paragraph describ

neonofarm [45]

Answer:

We can describe FOIL using the distributive property of multiplication. For real numbers x, y, and z the distributive property of multiplication states that

$(x + y)z = xz + yz$

Now let $z = v + w$ , where v and w are real numbers.

Then $(x + y)(v + w) = x(v + w) + y(v + w)$

Here, we can again use the distributive property of multiplication to get

$x(v + w) + y(v + w) = xv + xw + yv + yw$

Hence, it follows that

$(x + y)(v + w) = xv + xw + yv + yw$

This is the method of FOIL (first: xv, outside: xw, inside: yv, last: yw)

For example, $(1 + 2)(3 + 4) = 21 \\\text{and} \\1(3) + 1(4) + 2(3) + 2(4) = 3 + 4 + 6 + 8 = 21$

5 0

3 years ago

7. The Quotient

nasty-shy [4]

Answer:

<h3>The number is 500</h3>

Step-by-step explanation:

Let the number be x

The quotient of a number divided by five is written as

$\frac{x}{5}$

the number decreased by 400 is written as

x - 400

Equate the two expressions

We have

$\frac{x}{5} = x - 400$

Multiply through by 5

That's

x = 5x - 2000

x - 5x = - 2000

- 4x = - 2000

Divide both sides by - 4

x = 500

Hope this helps you

3 0

3 years ago

List the domain for the following relation <br><br> (4,1) , (-6,1) , ( 2,7) , (4,-3) , (8,3)

Colt1911 [192]

Answer:

4,-6,2,4,8

Step-by-step explanation:

the domain are the one at the top like the numerator of a fraction

6 0

3 years ago

309 / 17 equals plz need help

MaRussiya [10]

309/17 equals about 18.176 but it’s a rounded answer/decimal.

8 0

3 years ago