For 4 h, the temperature in Victoria fell by 2°C each hour. What was the total change in temperature?

Answer:

       x = 9

Step-by-step explanation:

        5          9

 (x -  (—— • x)) -  —  = 0  

        10          2

Simplify   1/2

     1          9

 (x -  (— • x)) -  —  = 0  

        2          2

                   x = 9

Answer:

x = 9

Step-by-step explanation:

Firstly, you have to balance the equation.

Start by subtracting 0.5 from both sides. Remember, when solving algebraic equations such as this one, you use reverse PEMDAS, or SADMEP.

Now, you have 0.5x = 4.5

Now, for the next step: division. Divide both sides by 0.5, or in other words, multiply by 2.

x = 9

Hope that helps! Please don't hesitate to contact me if you have any questions :)

Answer:

-5

Step-by-step explanation:

slope formula= [tex] \frac{y1 - y2}{x1 - x2} [/tex]

slope of line

[tex] = \frac{4 - ( - 11)}{0 - 3} \\ = \frac{4 + 11}{ - 3} \\ = \frac{15}{ - 3} \\ = - 5[/tex]

Answer:

Correct option: first one -> y = (1/3)x + (10/3)

Step-by-step explanation:

The linear function that represents a line is:

y = ax + b

Where a is the slope and b is the y-intercept.

First we need to find the slope of the line that goes through (0, -3) and (3, -2).

Using both points, we can find the equation of the line:

x = 0 -> y = -3

-3 = a*0 + b

b = -3

x = 3 -> y = -2

-2 = 3a - 3

3a = 1

a = 1/3

The parallel line needs to have the same slope as the line, so we can model the parallel line with the following equation:

y = (1/3)x + b

The parallel line goes through the point (-4, 2), so we have:

x = -4 -> y = 2

2 = (1/3)*(-4) + b

b = 2 + (4/3)

b = 10/3

So the equation of the parallel line is:

y = (1/3)x + (10/3)

Correct option: first one

Answer:

A.) y = one-third x + StartFraction 10 Over 3 Endfraction

Step-by-step explanation:

Answer:

Step-by-step explanation:

You need to get w on one side by itself.

Start out by subtracting 2l from both sides.

p−2l=2w.

Now since w is being multiplied by 2 we need to divided both sides (all terms) by 2.

w=p2−I

Answer:

W=P-L

Step-by-step explanation:

P=2L+2W

Subtract 2L from both sides.

P-2L=2W

Divide both sides by 2

P-L=W

76% , trust me i got it right

Answer:

B) y=3x+7.5

Step-by-step explanation:

The equation of the data in the table can be obtained by using any two points.

We will use points (3, 13) and (5,17)

The slope - intercept form is:

We find the slope as:

The equation becomes:

To find the value of b, the y -intercept is:

So the equation is:

A) y = 2x + 8.5

B) y=3x+7.5

C) y=5x+6.5

D) y=10x+5.5

Answer:

x = 13.5

Step-by-step explanation:

Once again, these two traingles share angle A and both have right angles. This shows AA similarity.

Now knowing this, we can set up a ratio:

(x+3)/3 = 11/2

Mulptiply both sides by 6:

2x+6 = 33

Isolate x:

2x = 27

divide by 2:

x = 13.5

Answer:

x=13.5

Step-by-step explanation:

i similar triangles sides are proportional.

[tex]\frac{x+3}{3} =\frac{11}{2} \\2x+6=33\\2x=33-6\\2x=27\\x=27/2=13.5[/tex]

Answer:

Step-by-step explanation:

Yes, this graph passes the vertical line test (Answer D)

Answer:

Look at the attachment

Answer:

∠ f = 33°

Step-by-step explanation:

Using the sine ratio in the right triangle

sin f = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{36}{66}[/tex] , thus

∠ f = [tex]sin^{-1}[/tex] ([tex]\frac{36}{66}[/tex] ) = 33° ( to the nearest degree )

Answer: 129.81 m, roughly 130 m

Step-by-step explanation: Let me know if you need an explanation.

Answer:

Applying the alternative interior pair of angles theorem => B = 31 deg

Applying the trigonometry property of tangent, the distance from the cliff to the boat is calculated by:

D = 78/tan(B) = 78/tan(31) =~129.81

Hope this helps!

:)

Answer:

The correct answer will be "1.60 hours".

Step-by-step explanation:

Within this test case, let's suppose that the bookstore had been closed on Sundays every other day while there were a total of 5 Sundays throughout the month of thirty days, thus effectively.

Months = 30

Number of sundays = 5

⇒  [tex]Effective \ working \ days = Months - Number \ of \ Sundays[/tex]

⇒                                          [tex]=30-5[/tex]

⇒                                          [tex]=25[/tex]

As we know, the total spend time will be 40 hours, then

⇒  [tex]Time \ spend \ each \ day = \frac{Total \ time \ spens}{Working \ days}[/tex]

On putting the estimated values, we get

⇒                                     [tex]=\frac{40}{30}[/tex]

⇒                                     [tex]=1.60 \ hours[/tex]

Answer: the median is 69

Step-by-step explanation:

you organize the numbers from smallest to biggest from there you find the middle and if there is no middle get the two middle numbers and add them from there you divide what you got by 2

Answer:

Step-by-step explanation:

Work finished by Francesca  in one hour = 1/6

Work finished by Irvin in one hour = 1/4

Work finished by Francesca and Irvin in one hour = 1/6 +1/4

                                                             [tex]=\frac{4}{24}+\frac{6}{24}\\\\=\frac{10}{24}\\\\=\frac{5}{12}\\[/tex]

5/12 of the work is completed by both in an hour

Whole work will be completed in 1*12/5 =12/5 hours = 2 2/5 hours

                                                  = 2 hours 24 minutes

Answer:

i got 20

sorry if this is wrong

Step-by-step explanation:

Answer:

The first 3 terms are 12, 17 and 24.

Step-by-step explanation:

You have to put in n = 1, 2, 3 as they want only first 3 terms :

[tex]Tn = {n}^{2} + 2n + 9[/tex]

[tex]T1 = {1}^{2} + 2(1) + 9 = 12[/tex]

[tex]T2 = {2}^{2} + 2(2) + 9 = 17[/tex]

[tex]T3 = {3}^{2} + 2(3) + 9 = 24[/tex]

Answer:

1372

Step-by-step explanation:

Volume of a Sphere[tex]=\frac{4}{3}\pi r^3[/tex]

If radius of the sphere=7 Inches

Volume[tex]=\dfrac{4}{3}\pi *7^3[/tex]

[tex]=\dfrac{1372\pi}{3}$ cubic inch[/tex]

Therefore, 1372 is the value that should be multiplied by Pi in the numerator to correctly show the volume of the sphere.

Answer:

1372

Step-by-step explanation:

just took the quiz

Answer:

D) cannot be determined

Step-by-step explanation:

We are given that PQR ~ XYZ

Now we are supposed to find which similarity postulate or given theorem applies

1) AA-Similarity : When Two angles of one triangle is equal to its corresponding angles of other triangle.Then, the two triangles are similar by AA Similarity.

2) SSS similarity: When three sides of two triangles are in the same ratio then the two triangles are similar by SSS similarity

3) SAS similarity : When two sides of two triangle are in the same ratio and one angle between two proportional sides of two triangles is congruent then the two triangles are similar by SAS similarity

We do not have enough information to satisfy the above options

So, Option D is true

D) cannot be determined

Answer:Cannot be determined a pex

Step-by-step explanation:

Answer:

C = 95 degrees

Answer:

On a coordinate plane, 2 curves intersect at (1, 1). One curve curves up and to the right from quadrant 3 into quadrant 1. The other curve curves down from quadrant 1 into quadrant 4

Step-by-step explanation:

The first function is given as:

[tex]log_3(x+3)[/tex]

The second function is given as:

[tex]log_{0.3}(x-1)[/tex]

First we graph both the functions.

We can see that one curves up and to the right from quadrant 3 into quadrant 1. This curve is of  [tex]log_3(x+3)[/tex]

The other curve curves down from quadrant 1 into quadrant 3

Both curves interest almost at (1,1)

See the graph attached below

Blue line represents first function

Green line represents second function

The solution lies on the Red line.

Answer:

A on edge2020

Step-by-step explanation:

took the test

Answer:

$3.05

Step-by-step explanation:

3 dollars = $3

1 cent = 1/100 dollar = $0.01

5 cents = 5 * 1 cent = 5 * $0.01 = $0.05

$3 + $0.05 = $3.05

ANSWER : A= 3r^2 {r>0}

1. square both sides

2. Expand

3. solve 3^2= A/3 :  A= 3r^2

4. A=3r^2

5. Verify solutions

Answer:

25%

Step-by-step explanation:

36-27 is 9

36*.25=9

therefore the answer is The camera is marked down by 25%.

Answer:

10/3 lawn

Step-by-step explanation:

2/3 of a lawn in 1/5 hour

-> 1 hour cab mow = 2/3(lawn) ÷ 1/5(hour)* 1(hour)

= 10/3 = 3,666666667 lawns

Answer:

maria can mow 3 lawns

Step-by-step explanation:

if it takes 1/5 of an hour to mown 2/3 of one lawn

60 divide by .2 = 12

that means it takes 12 miuntes to mown 2/3 of a lawn, so it takes 6 minutes for each 1/3

so 12+6= 18 minutes for one whole lawn

so 18 plus 18 equals 36

so 36 minutes for 2 lawns

then add another 18 minutes and you'll get 54 minutes. That's almost a whole hour

so Maria can mown 3 lawns

( if im wrong, im sorry i tried)

Answer:

36

Step-by-step explanation:

I just did it in my head so sry if it’s wrong but I’m trying to give back bc of how much brainless has helped me

Answer:

x = 19

Step-by-step explanation:

∠ 1 + ∠ 2 = 90° ( corresponding angle ), substitute values

4x + 9 + x - 14 = 90

5x - 5 = 90 ( add 5 to both sides )

5x = 95 ( divide both sides by 5 )

x = 19

The value of variable x is,

⇒ x = 19

We have to given that;

Measure of angles are,

m∠1 = (4x + 9)°

And, m∠2 = (x − 14)°

Now, We can see that,

Measure of angle 1 and 2 are complementary angle.

Hence, We get;

⇒ m ∠1 + m ∠2 = 90°

Substitute all the values, we get;

⇒ (4x + 9) + (x - 14) = 90

⇒ 5x - 5 = 90

⇒ 5x = 90 + 5

⇒ 5x = 95

⇒ x = 95 / 5

⇒ x = 19

Thus, The value of variable x is,

⇒ x = 19

Learn more about the complementary angle visit;

https://brainly.com/question/20428380

$SPJ6

Answer:

558,000

Step-by-step explanation:

First you multiple 10 by the power of 5 = 10 x 10 x 10 x 10 x 10 = 100000 x 5.58 = 558,000

Answer:

24 units

Step-by-step explanation:

From the description:

We also know that

sin(a) = 4/5

From definition:

sin(a) = opposite/hypotenuse

Replacing:

4/5 = EF/DE

EF = (4/5)*DE

EF = (4/5)*30 = 24 units

The length of the segment EF of the triangle DEF is 24 units.

In the image attached below we summarize the triangle described in statement, by trigonometric relationship we find that the length of the segment EF is described by the following expression:

[tex]\sin a^{\circ} = \frac{EF}{DE}[/tex] (1)

If we know that [tex]DE = 30[/tex] and [tex]\sin a^{\circ} = \frac{4}{5}[/tex], then the length of the segment EF is:

[tex]EF = DE\cdot \sin a^{\circ}[/tex]

[tex]EF = 30\cdot \left(\frac{4}{5} \right)[/tex]

[tex]EF = 24[/tex]

The length of the segment EF of the triangle DEF is 24 units. [tex]\blacksquare[/tex]

To learn more on right triangles, we kindly invite to check this verified question: https://brainly.com/question/7894175