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SCORPION-xisa [38]

2 years ago

7

Last night at 8pm in Chicago, the temperature was 3 degrees Celsius. By 5am, it had dropped 5 degrees. What was the temperature

at 5am?

1 answer:

sattari [20]2 years ago

4 0

Answer:

-2degrees

Step-by-step explanation:

(3 degrees Celsius - 5 degrees Celsius)= -2 degrees Celsius

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What forms of measurement of length, width, height, and distance are forms of what measurement?

Katen [24]

The length, width, and height In the most common contexts in elementary school, mathematics does not have a formal definition for these terms, nor does it have rules about "proper" use.

8 0

3 years ago

A rope of length 18 feet is arranged in the shape of a sector of a circle with central angle O radians, as shown in the

creativ13 [48]

Answer:

$A(\theta)=\frac{162 \theta}{(\theta+2)^2}$

Step-by-step explanation:

The picture of the question in the attached figure

step 1

Let

r ---> the radius of the sector

s ---> the arc length of sector

Find the radius r

we know that

$2r+s=18$

$s=r \theta$

$2r+r \theta=18$

solve for r

$r=\frac{18}{2+\theta}$

step 2

Find the value of s

$s=r \theta$

substitute the value of r

$s=\frac{18}{2+\theta}\theta$

step 3

we know that

The area of complete circle is equal to

$A=\pi r^{2}$

The complete circle subtends a central angle of 2π radians

so

using proportion find the area of the sector by a central angle of angle theta

Let

A ---> the area of sector with central angle theta

$\frac{\pi r^{2} }{2\pi}=\frac{A}{\theta} \\\\A=\frac{r^2\theta}{2}$

substitute the value of r

$A=\frac{(\frac{18}{2+\theta})^2\theta}{2}$

$A=\frac{162 \theta}{(\theta+2)^2}$

Convert to function notation

$A(\theta)=\frac{162 \theta}{(\theta+2)^2}$

6 0

3 years ago

Can someone help fill in 5 blanks

Yuri [45]

3: -27
4: 81
5: -243
All you need to do is plug in the numbers into the exponent spot.

3 0

3 years ago

The graph shows the function y=3x-1. What are the cordinates of intercepts

scZoUnD [109]

Answer:

$y \: intercept : when \: x = 0 \\ y = (3 \times 0) - 1 = - 1 \\ = > (0, - 1) \\ x \: intercept : when \: y = 0 \\ 0 = 3x - 1 \\ x = \frac{1}{3} \\ = > ( \frac{1}{3} ,0) \\ intercepts : (0, - 1) \: and \: ( \frac{1}{3} ,0)$

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3 years ago

What is the area to a 2 3/4 inch square?

Vinvika [58]

Since every side of a square is the same length, and the formula to find the area is bh you would just do 2.75²

2.75×2.75=7.5625≈7.56

the answer is the area of the square is approximately 7.56u²

5 0

3 years ago