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2 years ago

How do you write the set notation for the graph below?

Mathematics

1 answer:

Ganezh [65]2 years ago

8 0

The dot on -1 is open, so the number -1 is not included. You need all real numbers greater than -1.

Answer: D

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How tall is a building that casts a 78-ft shadow when the angle of elevation of the sun is 30 degrees?

Marta_Voda [28]

Answer: $45.03\ ft$

Step-by-step explanation:

Given

The length of the shadow is 78 ft

the angle of elevation is $\theta =30^{\circ}$

Suppose the height of the building is $h$

From the figure, we can write

$\tan 30^{\circ}=\dfrac{h}{78}\\\\h=78\tan 30^{\circ}\\\\h=45.03\ ft$

The height of the building is 45.03 ft

8 0

2 years ago

Which of the following lines will have a negative slope? Select all that apply

olganol [36]

Answer:

1, 5

Step-by-step explanation:

-16/4=-4

10/5=2

1/2=1/2

-1/-3=1/3

-1/4/1/2=-1/2

The negative ones are your answer.

6 0

1 year ago

Which equation can be used to find the volume of this solid?

valkas [14]

Answer:

the last one

Step-by-step explanation:

it's basically finding the area for a cube and then cutting it in half, so multiply it all together and then divide by 2. sorry if I'm wrong lol

8 0

2 years ago

Read 2 more answers

I can't figure out how to solve this problem when y = -12

Delicious77 [7]

ززسنسح٢٩٣تبنخيخثزثوث

6 0

3 years ago

I dont know what to do please help

umka21 [38]

Answer:

Step-by-step explanation:

Number Price per Total Commission Total cost

of Shares Share (At 6% of total)

100 $16.25 $1625 $1625\times \frac{6}{100}=97.5$ 1625+97.5 = $1722.5

100 $11.31 $1131 $1131\times \frac{6}{100}=67.86$ 1131+67.86=$1198.86

40 $9.15 $366 $366\times \frac{6}{100}=21.96$ 366+21.96=$387.96

100 $15.27 $1527 $1527\times \frac{6}{100}=91.62$ 1527+91.62=$1618.62

100 $13.22 $1322 $1322\times \frac{6}{100}=79.32$ 1322+79.32=$1401.32

5 0

2 years ago