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3 years ago

Which is the graph of the equation y-3=0.5(x+4)?Need help

Mathematics

2 answers:

AleksandrR [38]3 years ago

6 0

Answer:

The second one in the top row

stiv31 [10]3 years ago

3 0

Answer:

Top row 2nd one

Step-by-step explanation:

Distrube out .5 first and the equation will be .5x+2

Then add 3 to both sides and you get y=.5x+5

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20 POINTS!! Betty arranged equal numbers of movies on four shelves of a shelving unit and placed 6 of her favorite movies on the

Bess [88]

Answer:

54 movies

Step-by-step explanation:

shelving unit has 4x + 6 movies

and each holds 12 movies,

then x =12

Then solve 4x + 6 for x= 12

4(12) + 6 = 54

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3 years ago

Find the coordinates of B' after a reflection across the x-axis. show your work

bazaltina [42]

Answer:

B'(8, 6)

Step-by-step explanation:

Coordinates of point B = (8, -6)

<u>Reflection across the x-axis results in:</u>

(x, y) → (x, -y)

<u>Coordinates of B'</u>

(8, -6) → (8, -(-6)) = (8, 6)

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3 years ago

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kompoz [17]

Answer:

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2 years ago

Andrea and her friends love cake. Andrea has two cakes. Each of her friends are going to eat 2/3 of a cake. How many servings of

BigorU [14]

Divide 2 cakes by 2/3 serving:

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7 0

3 years ago

Read 2 more answers

A pan of warm water (46∘ Celsius) was put in a refrigerator. After 15 minutes, the water's temperature was 27∘ C; 15 minutes aft

Cloud [144]

Answer:

The refrigerator was at around 13 ∘C

Step-by-step explanation:

Newton's Law of Cooling:

The rate of change of a body temperature (amount of heat loss/time of loss) is directly proportional to the difference between its own temperature and the surroundings.

$\frac{T(t2)-T(t1)}{t2-t1} = -h (T(t2) - Tenv)$

T ⇒ temperature

t ⇒ time

Tenv ⇒refrigerator temperature

$\frac{T(t2)-T(t1)}{t2-t1}$ ⇒ rate of change of he temperature

-h ⇒ constant of proportionality (negative because the temperature is decreasing inside the refrigerator)

We have 3 points:

time (minutes) - Temperature (∘ C)

0 (when the pan was put in the refrigerator) - 46

15 (after 15 minutes) - 27

30 (15 minutes after the first 15 minutes) - 19

$\frac{27 - 46}{15 - 0}$ = -h (27 - Tenv)

$\frac{19 - 27}{15 - 0}$ = -h (19 - Tenv)

Now we have a system of two equations and two variables

$\frac{-19}{15} = -h (27 - Tenv)\\ \frac{19}{15} = h (27 - Tenv)\\ \frac{19}{15(27 - Tenv)} = h$

$\frac{19 - 27}{15 - 0} = -h (19 - Tenv)\\\frac{-8}{15} = -h (19 - Tenv)\\\frac{8}{15} = h (19 - Tenv)\\\frac{8}{15} = \frac{19}{15(27 - Tenv)} (19 - Tenv)\\8(27 - Tenv) = 19 (19 - Tenv)\\216 - 8 Tenv = 361 - 19 Tenv\\19 Tenv - 8 Tenv = 361 - 216\\11 Tenv = 145 \\Tenv = 145/ 11\\Tenv = 13. 18$

The refrigerator was at around 13 ∘C

6 0

3 years ago

Which is the graph of the equation y-3=0.5(x+4)?Need help​

Which is the graph of the equation y-3=0.5(x+4)?Need help