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It's was 55°F outside until the temperature increased 20°F. Which number is the additive inverse of the temperature increase? A) −20 B) −55 C) 20 D) 55

Answers

Answer 1

Answer:

Answer:

Option A) -20°F.

Step-by-step explanation:

Given : It's was 55°F outside until the temperature increased 20°F.

To find : Which number is the additive inverse of the temperature increase?

Solution :

Additive inverse is defined as,

For any number 'a', the additive inverse is $a+(-a)=0$ or $-1\cdot a=-a$

According to question,

The temperature is increased 20°F.

To follow the additive inverse property,

The sum became zero.

So, Additive inverse is -20°F.

Therefore, Option A is correct.

The additive inverse of the temperature increase is -20°F.

Answer 2

Answer:

A) -20

Hope its correct good-luck (sorry im so late)

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A baker is calculating the charge for two types of cookies. what formula tells the cost, in dollars, if chocolate chip cookies are $1.50/dozen and lemon frosted cookies $1.00/dozen. c=number of dozen of chocolate chip cookies; L=number of dozen lemon frosted; T=total charge.

Answers

Answer: Each dozen of chocolate chip cookies costs $1.50/dozen. So if you sell C dozens of them, you win C*$1.50 dollars, where C is a positive integer number. Similar case for the lemon ones, the baker will win L*$1.00 dollars if he sells L dozens of them ( where L is a positive integer), the total charge is the sum of both parts; T = L*$1.00 + C*$1.50.

$1.50c(chocolate chips) + $1.00L(lemon frosted)=T(total cost)

Dmitri wants to cover the top and sides of this box with glass tiles that are 1 cm square. How many tiles will he need? Dmitri will need [Blank] glass tiles. The dimentions are...26 , 15, 8.

Answers

The number of tiles needed to cover the surface area of the box excluding the bottom is: 1,046 tiles.

What is the Surface Area of a Box?

The surface area of a box is the area surrounding all its faces. A box has 6 rectangular faces. Therefore, the total surface area of the box equals the sum of all 6 rectangular faces.

What is the Surface Area of a Box?

SA = 2(lw + lh + hw), where:

l = length
w = width
h = height of the box

The image attached below shows the box Dmitri wants to cover. Since the bottom of the box would be excluded, therefore:

The surface area to be covered = surface area of the box - area of the bottom rectangular face

The surface area to be covered = 2(lw + lh + hw) - (l)(w)

l = 26

w = 15

h = 8

Substitute

The surface area to be covered = 2(l×w + lh + hw) - (l)(w) = 2·(15·26+8·26+8·15) - (26)(15) =

The surface area to be covered = 1436 - 390 = 1,046 cm

Area of one tile = 1 cm square

Number of tiles needed = 1,046/1

Number of tiles needed = 1,046 tiles.

Learn more about Surface Area of a Box on:

brainly.com/question/26161002

#SPJ1

Is 6 a solution of 5(c - 9) = - 15?

Answers

5( c - 9 ) = - 15

Opening Brackets ,

= > 5( c ) - 5( 9 ) = - 15

= > 5c - 45 = - 15

Add 45 on both sides,

= > 5c - 45 + 45 = - 15 + 45

= > 5c = 30

Divide by 5 on both sides,

= > 5c / 5 = 30 / 5

= > c = 6

Hence, 6 is the solution of the given equation.
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*8. Consider a LTI system with unit impulse response, h(t) = e-3tu(t). Using direct integration technique for finding convolution, find its zero-state response due to an input, x(t) = u(t) (which is called unit step response of the system). Also, from your answer above, write down its response due to an input of the form, x(t) = 2δ(t) – 4u(t). [Hint: Use principle of superposition]

Answers

Answer:

Step-by-step explanation:

Check the attachment for solution

X/2 + 5= -8 what does x equal and show work

Answers

Answer:

x = -26

Step-by-step explanation:

x/2 + 5 = -8

First let's combine like terms.

Subtract 5 from both sides.

x/2 = -13

Multiply both sides by 2 to isolate x.

x = -26

Plug this back into the original equation to check your answer.

-26/2 + 5 = -8

-13 + 5 = -8

-8 = -8

Your answer is correct.

Hope this helps!

Answer:

x=-26

Step-by-step explanation:

x/2 + 5 = -8

x/2 + 5 - 5 = -8 - 5

x/2 = -13

x = -26

this is all of the work I did to solve what x is! I hope it helped! There are many other way to solve this problem. This is the way which a lot of ppl do.

What is the solution to x^3 +4x^2 > x + 4

Answers

The solution consists of all of the true intervals is −4 < x < −1 x > 1.

−4<x<−1 or x>1

Inequality Form: −4<x<−1 or x>1

Interval Notation: (−4,−1) ∪ (1,∞)

x^3 + 4x^2 > x + 4

Subtract x from both sides of the inequality.

x^3 + 4x^2 − x > 4

Convert the inequality to an equation.

x^3 + 4x^2 − x = 4

Move 4 to the left side of the equation by subtracting it from both sides.

x^3 + 4x^2>x+4

2 − x − 4 = 0

Factor the left side of the equation

(x + 4)(x + 1)(x − 1) = 0

If any individual factor on the left side of the equation is equal to, the entire expression will be equal to 0

x + 4 = 0

x + 1 = 0

x − 1 = 0

Set x + 4 equal to 0 and solve for x

x = −4

Set x + 1 equal to 0 and solve for x

What is inequality?

Inequality is the difference in social status, wealth, or opportunity between people or groups. People are concerned about social inequality.

x = −1

Set x + -1 equal to 0 and solve for x

x = 1

The final solution is all the values that make (x + 4)(x + 1)(x − 1) = 0 true

x = −4, −1, 1

Use each root to create test intervals.

x < −4

−4 < x < −1

−1 < x < 1

x > 1

Choose a test value from each interval and plug this value into the original inequality to determine which intervals satisfy the

inequality.