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Andru [333]
2 years ago
15

For a test! please help asap

Mathematics
1 answer:
Delvig [45]2 years ago
7 0

Answer:

8/9

Step-by-step explanation:

3 {}^{x}  - 3 {}^{x - 2}

3 {}^{x}  -  \frac{3 {}^{x} }{ {3}^{2} }

3 {}^{x} (1 -  \frac{1}{9} )

3 {}^{x} ( \frac{8}{9} )

So

A=8/9

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Type the correct answer in the box. Round your answer to the nearest integer.
umka21 [38]

Answer:

m∠ADC = 132°

Step-by-step explanation:

From the figure attached,

By applying sine rule in ΔABD,

\frac{\text{sin}(\angle ABD)}{\text{AD}}=\frac{\text{sin}(\angle ADB)}{AB}

\frac{\text{sin}(120)}{35}=\frac{\text{sin}(\angle ADB)}{30}

sin(∠ADB) = \frac{30\text{sin}(120)}{35}

                 = 0.74231

m∠ADB = \text{sin}^{-1}(0.74231)

             = 47.92°

             ≈ 48°

m∠ADC + m∠ADB = 180° [Linear pair of angles]

m∠ADC + 48° = 180°

m∠ADC = 180° - 48°

m∠ADC = 132°

4 0
3 years ago
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Sedbober [7]

Answer:

perimeter = 19.42 ft

Step-by-step explanation:

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perimeter of cone = 5 + 5 = 10

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7 0
2 years ago
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Solve the equation 40 = -10(y+0.3). what does the y equal​
alexdok [17]

Answer:

y = -4.3

Step-by-step explanation:

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40 = -10y + -10(0.3)

40 = -10y - 3 <em>{Step 2: Add 3 to both sides.}</em>

40 + 3 = -10y

43 = -10y <em>{Step 3: Divide both sides by -10}</em>

43/-10 = y

-4.3 = y

y equals -4.3.

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3 years ago
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Afina-wow [57]

Answer:

5 1/4

Step-by-step explanation:

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2 years ago
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soldier1979 [14.2K]

Step-by-step explanation:

a gallon of milk and a and peanut butter sand wicchs

4 0
3 years ago
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