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Bond [772]
3 years ago
11

Hewo Please Help THX!!! :)

Mathematics
1 answer:
Serga [27]3 years ago
6 0

Answer:

$30

Step-by-step explanation:

x =4(3.45)+1.5(3.98)+2(4.35)+1.53

=13.8+5.97+8.7+1.53

=30

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3 An open cone has a vertical angle measuring 40°
belka [17]

Answer:

13.41 cm

Step-by-step explanation:

The radius, height, and HALF of vertical angle makes a triangle.

Where

Radius will be the base of the triangle

Height will be the "height" of the triangle

Top angle will be HALF of vertical angle (40/2 = 20)

From the 20 degree angle, the side "opposite" would be the radius, which is 30. The side "adjacent" would be the height, let it be h.

<em>Which trig ratio relates opposite and adjacent? Yes, that is TAN. Thus we can write:</em>

Tan(20) = opposite/adjacent

Tan(20) = 30/h

h = 30/Tan(20)

h = 13.41

So

The height of the cone would be around 13.41 cm

3 0
3 years ago
Write an equation representing the direct variation.
zalisa [80]

Answer:

y = -2.5x

Step-by-step explanation:

The constant of variation = y/ x = 5/-2 = -2.5

Also -7.5 / 3 = -2.5

-10 /4 = -2.5 and so on

3 0
3 years ago
8y + 36/9 = 44 <br><br> solve for y.
Salsk061 [2.6K]

Answer:

5

Step-by-step explanation:

8y + 36/9 = 44

Simplify the fraction 36/9=4

Isolate y

8y=44-4

8y/8=40/8

y=5

4 0
3 years ago
Read 2 more answers
HELP PLEASE 10 POINTS
Black_prince [1.1K]

B is the answer you are looking for


7 0
3 years ago
Can i have an answer to this question
Ray Of Light [21]
I know the answer, it is -1.

5 0
3 years ago
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