The temperature at midnight is -5°C and is expected to drop 12°
by sunrise. What is the expected temperature at sunrise?

Given:

The equation of the line of best fit is :

[tex]y=4.722392638x+50.99539877[/tex]

To find:

The x-intercept and check whether it make sense in this context.

Solution:

We have,

[tex]y=4.722392638x+50.99539877[/tex]

Substitute [tex]y=0[/tex] to find the x-intercept of the given best fit line.

[tex]0=4.722392638x+50.99539877[/tex]

[tex]-50.99539877=4.722392638x[/tex]

[tex]-\dfrac{50.99539877}{4.722392638}=x[/tex]

[tex]-10.7986359202=x[/tex]

So, the x-intercept is at point (-10.7986359202,0). It means the score on final examination is 0 if -10.7986359202 hours  spent on studying.

But is does not make sense because the number of hours cannot be negative.

Answer:

C≈18.85cm

Step-by-step explanation:

C=2πr=2·π·3≈18.84956cm

Answer:

you are right

Step-by-step explanation:

plus that is a very weird triangle

have a great day

Answer:

Factorise both sides of

ax+bx=a2−b2  

and get

(a+b)x=(a+b)(a−b).  

If  

a+b≠0,  

because division by 0 is not allowed, then divide by a + b and get

(a+b)xa+b=(a+b)(a−b)a+b.  

It reduces to

x=a−b.  

If a+b=0, then  

ax+bx=a2−b2 is  

(a+b)x=(a+b)(a−b)  

and this simplifies to

0x=0(a−b),  

that is,

0=0,  

so that the value of x is indeterminate.

Answer: figure 1 and 4

Step-by-step explanation: just multiple width times length and see if they give the same answer.

hoped this helped.

Answer:

The relation between the sides and angles of a right triangle is the basis for trigonometry.

Step-by-step explanation:

The side opposite the right angle is called the hypotenuse (side c in the figure). The sides adjacent to the right angle are called legs (sides a and b ).

Answer:

The legs

Step-by-step explanation:

In a right triangle, sides a and b are called "the legs." These are the sides that create the right angle. Side c is called the hypotenuse and it is the longest side of a right triangle. Side c is opposite of the right angle.

I hope this helps!

Answer:

5 units

Step-by-step explanation:

Area swept by the floor will be the area ofd a sector

Area of a sector = theta/2π * πr²

We are to find the radius r

Given

Area=  25π/12

theta = 30° = π/6

Substitute

25π/12 = 30/360 * πr²

25π/12 = 1/12 * πr²

25/12 = r²/12

r² = 25

r = √25

r = 5

Hence the radius od the part swept by the door is 5 units

Answer:

Step-by-step explanation:

Perimeter of a square with side a:

P- dependent value, 4- constant of proportionality, a- variable

When a = 11 cm,

Answer:

Step-by-step explanation:

Constant of proportionality is 4

Answer:  24 feel unsafe 20 feel neutral and 36 feel safe

Step-by-step explanation: If you multiply the total neighbors by 2 the answers should be multiplied by 2.

:)

Answer:

y > 4x - 2

Step-by-step explanation:

The basic format of a line in slope-intercept form is,

[tex]y=mx+b[/tex]

This format undergoes no change when one implements it for the use of a two-variable inequality.

The parameter (m) represents the slope of a line, this can be found by using the formula ([tex]\frac{rise}{run}[/tex]). Traditionally, one would use a formula to find the slope of a line that is the following, ([tex]\frac{y_2-y_1}{x_2-x_1}[/tex]). However, in the given situation, one can simply count the number of boxes from one point with respect to the x-axis to another, and thus get (4).

The parameter (b) represents the point in which the graph intersects the y-axis, one can see that this point is (-2).

Since the line is dotted, one would only use the greater than symbol, not the greater than or equal-too-symbol.

Finally, since the area above the line is shaded, therefore one knows that it is (y) is greater than.

Answer:

The last angle is 100°. A triangle is 180° and the two given angles are both 40°, meaning that 80°of the triangle is already given so the angle that's left is 100°.

Answer:

y = 3 √ 27 x − 54 + 5

Step-by-step explanation:

what r the answer choices?

and does this help?

Horizontal translation - 2 units right.

Vertical translation - 5 units up

Stretch / compression - stretched by a factor of 3.

Reflection - not reflected.

Answer:

I think it is 56.25 not sure but try it

Answer:

56.25 or 56[tex]\frac{1}{4}[/tex]

Step-by-step explanation:

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

                       [tex]\frac{25}{3}[/tex] × [tex]\frac{27}{4}[/tex]

Applying the fractions formula for multiplication,

                       [tex]\frac{25}{3}[/tex] × [tex]\frac{27}{4}[/tex]

                          [tex]\frac{675}{12}[/tex]

Simplifying 675/12, the answer is

                         56[tex]\frac{1}{4}[/tex]

Answer:

It is not rational

Step-by-step explanation:

Answer:

Step-by-step explanation:

y= -833.3+42,000

29,500

Answer:

915 miles

Step-by-step explanation:

15 divided by 5 is 3

305 times 3

Answer:

915 miles

Step-by-step explanation:

If ross drifves 305 miles in 5 hours, then he would drive 915 miles because 5 hours multiplied by 3 is 15 hours and 305 multibplied by 3 is 915

surface areas:

1. 94 ft

2. 96 cm

volumes:

1. 60 ft

2. 42 cm

Answer:

-32

Step-by-step explanation:

Answer:

easy 72 degree

Step-by-step explanation:

Answer:

6%

Step-by-step explanation:

Given data

Principal = ​$1,000

Time= 8 years

Simple interest= ​​$480

The expression for the simple interest is

Simple interest= PRT/100

Substitute

480= 1000*R*8/100

Cross multiply

480= 8000R/100

480*100= 8000R

48000= 8000R

Divide both sides by 8000

R= 48000/8000

R=6%

Answer:

2nd

Step-by-step explanation:

x=10

y²=x²+10²=200

y=10√2

Answer:

A

[tex]hope \:this \: helps[/tex]

Answer:

25 units^2

Step-by-step explanation:

Answer:

Quadrant 4

Step-by-step explanation:

Hi! Okay, let's get started.

This, would be Quadrant 4, with the x axis positive, and y one negative.

Hope that helps! :)

-Aphrodite

Está situado no quarto quadrante

Answer:

Cut it into three smaller bricks?

Step-by-step explanation:

Answer:

bam skadoosh slice and dice em

Step-by-step explanation:

Answer:

10 x 3 x 5 = a

Answer:

38 miles

Step-by-step explanation:

456 ÷ 12 = 38

give me brainllest

Answer:

12=obtuse

13=right

14=not a triangle

16=acute

Step-by-step explanation: