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3 years ago

Evaluate the expression for y = -5

Mathematics

1 answer:

Scorpion4ik [409]3 years ago

8 0

Hey there!

Guide

• Negative & Positive = Negative

• Positive & Negative = Negative

• Negative & Negative = Positive

• Positive & Positive = Positive

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Negatives are BELOW 0

• Positives are ABOVE 0

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Positives are on the RIGHT SIDE of the number line

• Negatives are on the LEFT SIDE of the number

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Answering your question

_____________________

-2y

= -2(-5)

= 2(5)

= 10

Therefore, your answer is: 10

Because, both of your numbers were negatives and they both turned into a positive which gave us a positive result

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

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A yogurt shop offers 7 different flavors of frozen yogurt and 11 different toppings. How many choices are possible for a single

egoroff_w [7]

Answer:

Step-by-step explanation:

for each one of the 7 different flavors of frozen yogurt there are 11 possible different toppings

Then there are 7 × 11 = 77 possible choices for a single serving of frozen yogurt with one topping

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2 years ago

34. For the following exercises, given each set of information, find a linear equation satisfying the conditions, if possible.

skad [1K]

Answer:

The linear equation for the line which passes through the points given as (-1,4) and (5,2), is written in the point-slope form as $y=\frac{1}{3} x-\frac{13}{3}$ .

Step-by-step explanation:

A condition is given that a line passes through the points whose coordinates are (-1,4) and (5,2).

It is asked to find the linear equation which satisfies the given condition.

Step 1 of 3

Determine the slope of the line.

The points through which the line passes are given as (-1,4) and (5,2). Next, the formula for the slope is given as,

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute 2&4 for $y_{2}$ and $y_{1}$ respectively, and $5 \&-1$ for $x_{2}$ and $x_{1}$ respectively in the above formula. Then simplify to get the slope as follows,

$m=\frac{2-4}{5-(-1)}$\\ $m=\frac{-2}{6}$\\ $m=-\frac{1}{3}$$

Step 2 of 3

Write the linear equation in point-slope form.

A linear equation in point slope form is given as,

$y-y_{1}=m\left(x-x_{1}\right)$

Substitute $-\frac{1}{3}$ for m,-1 for $x_{1}$ , and 4 for $y_{1}$ in the above equation and simplify using the distributive property as follows,

$y-4=-\frac{1}{3}(x-(-1))$\\ $y-4=-\frac{1}{3}(x+1)$\\ $y-4=-\frac{1}{3} x-\frac{1}{3}$$

Step 3 of 3

Simplify the equation further.

Add 4 on each side of the equation $y-4=\frac{1}{3} x-\frac{1}{3}$ , and simplify as follows,

$y-4+4=\frac{1}{3} x-\frac{1}{3}+4$\\ $y=\frac{1}{3} x-\frac{1+12}{3}$\\ $y=\frac{1}{3} x-\frac{13}{3}$$

This is the required linear equation.

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2 years ago

A building in the shape of a rectangular prism needs to be painted. Some facts about the building are shown below.

algol [13]

Answer:

(2)(120)(80) + (2)(120)(50) - (4)(60)(5²)

Step-by-step explanation:

The lateral faces of the building are the 4 sides of the building consisting:

2 rectangles of 120 ft by 80 ft

Area of the two rectangular faces = (2)(120)(80)

And

2 rectangles of 120 ft by 50 ft

Area of the two rectangular faces = (2)(120)(50)

✔️Total lateral surface area of the building = (2)(120)(80) + (2)(120)(50)

Note: we are asked to find the expression that represents the total surface area that needs to be painted given that there are 60 windows on each lateral face of the building of the shape of a square with side lengths of 5 ft.

Therefore, the total lateral surface area of the building that will be painted = total lateral surface of the building - total area covered by the 60 windows on each face of the building

Surface area covered by 60 windows in the 4 lateral face of the building = (4)(60)(5²)

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agasfer [191]

Answer:

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Step-by-step explanation:

Since the sale price is 18% off, this means we pay 100-18 = 82% of the original price. 82% = 82/100 = 0.82; using x as the original price, we can set up the equation

0.82x = 23

Divide both sides by 0.82:

0.82x/0.82 = 23/0.82

x = 28.05

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Answer:

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