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2 years ago

2. Calculate the missing angle: 75 50° a)

Mathematics

1 answer:

solniwko [45]2 years ago

6 0

Answer:

The missing angle is 55°.

Step-by-step explanation:

==========================================

The three interior angles of a triangle add up to 180°.

This means that:

$x\textdegree + 75\textdegree+50\textdegree=180\textdegree\\\rule{150}{0.5}\\x - \text{unknown angle}$

==========================================

Using the equation above, we would solve for x.

$x\textdegree + 75\textdegree+50\textdegree=180\textdegree\\\rule{150}{0.5}\\x\textdegree + 75\textdegree+50\textdegree=180\textdegree\\\\x\textdegree + 125\textdegree=180\textdegree\\\\x\textdegree + 125\textdegree-125\textdegree=180\textdegree - 125\textdegree\\\\\boxed{x = 55\textdegree}$

The missing angle should be 55°.

==========================================

Hope this helps.

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dolphi86 [110]

Answer:

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Step-by-step explanation:

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We can multiply the amount of grams by the amount of days.

18.75 x 16 = 300

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So he uses 1 bag for 16 days

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3 years ago

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A polynomial expression is shown below.

tester [92]

The polynomial is (mx^3+3)(2x²+5x+2)-(8x^5 +20x^4)
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(mx^3+3)(2x²+5x+2)-(8x^5+20x^4) = 8x^3+6x²+15x+6
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2mx^5+5mx^4+2mx^3=8x^3+6x²+15x+6-6x²-15x-6+ 8x^5+20x^4
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finally

m(2x^5+5x^4+2x^3)=4(2x^5+5x^4+2x^3), and after simplification

C: m=4

4. When the expression is factored x²-3x-18 completely,

one of its factor is x-6
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3 years ago

Plz Help, and solve. Show your work. I will give Brainliest. A - 7 = -13 solve and show your work 10X - 8 = 9X + 8 Can a right t

likoan [24]

Answer:

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3 years ago

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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:

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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

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

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

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3 years ago

2. Calculate the missing angle: 75 50° a)​

2. Calculate the missing angle: 75 50° a)