What two numbers multiply to 64 and add up to negative 16

Answers

Answer 1

Answer:

The two numbers multiply to 64 and add up to negative 16 are -8, -8.

What is Algebraic expression ?

Algebraic expressions are numbers expressed using letters or alphabets without specifying their values. Algebra taught us how to express unknown values using letters such as x, y, and z. There can also be a single value that is placed before and multiplied by a variable in an algebraic expression in addition to these letters, which are called variables.

Let us assume first number be = x

and, let the second number be = y

then,

multiplication of two number will be :

xy = 64...(1)

addition of two numbers will be -16 that is :

x + y = -16..(2)

we have :

(x+y)² - (x-y)² = 4xy

(x-y)² = (x+y)² - 4xy

(x-y)² = (-16)² - 4 x 64

(x-y)² = 256 - 256

(x-y)² = 0

(x-y) = 0

x = y

Now, from equation (2) we have ":

x + y = -16

x + x = -16

2x = -16

x = y= -8

Therefore, the two numbers multiply to 64 and add up to negative 16 are -8, -8.

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Can I get some help pls.

Answers

Is it C? I really think it is C.

Max travels to see his brother's family by car. He drives 216 miles in 4 hours.What is his rate in miles per hour? Use a double number line to show your work.

Answers

Answer:

54 mph

Step-by-step explanation:

Graph the line with slope 1/3

passing through the point (-2, 5).

Answers

Answer:

y = 1/3x + 17/3

Step-by-step explanation:

Required answer: Below

Detailed explanation:

Let's find the equation of the line first.

We know that the line:

has a slope of 1/3
passes through (-2,5)

So, we use these pieces of information and plug them into the formula:

$\bf{y-y_1=m(x-x_1)}$

$\bf{y-5=(1)/(3)(x-(-2)}$

$\bf{y-5=(1)/(3)(x+2)}$

Now let's graph it.

Please answer this for me, I am lost.

Answers

Answer:B

Step-by-step explanation:

Sara drives 96 miles on 3.2 gallons of gas. She uses this information to calculate how many miles per gallon she can drive. Using this result, how many miles can Sara drive on 12.5 gallons of gas?

Answers

1st to get the mpg we need to divide 96/3.2 = 30 mpg

now that we know it's 30 mpg we multiply by the gallons of gas

30 * 12.5 = 375 miles

Final answer:

Sara gets 30 miles per gallon of gas. Hence, with 12.5 gallons of gas, she can drive 375 miles.

Explanation:

To calculate how many miles Sara can drive per gallon of gas, we need to divide the total distance driven by the amount of gas used. In this case, it's 96 miles divided by 3.2 gallons. Using simple division, we find that Sara gets 30 miles per gallon of gas.

Now, to find out how far Sara can drive using 12.5 gallons, you just need to multiply the miles per gallon by the number of gallons available. In this case, it's 30 miles per gallon times 12.5 gallons. Hence, Sara can drive 375 miles on 12.5 gallons of gas.