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Ugo [173]
3 years ago
8

Select the sets that are not functions. (answer choices are in picture)

Mathematics
2 answers:
Eduardwww [97]3 years ago
8 0

Answer:

C is not a function

Step-by-step explanation:

Nikolay [14]3 years ago
7 0

Answer:

The answer is D and E

Step-by-step explanation:

- D is not a function because x in (x,y) coordinate sets, 1 is being repeated over and in this case 1 is repeated 4 times.

- E is not a function because x in (x,y) coordinate sets, 6 has been repeated 2 times; (6,2), and (6, -1).

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Find the missing length. Round to the nearest tenth
Xelga [282]

Answer:

x ≈ 30.9 (Choice D)

Step-by-step explanation:

We can use cosine for solving this question:

cos (61°) = 15 / x

x = 15 / cos (61°)

x = 30.93998011

x ≈ 30.9 (Choice D)

7 0
3 years ago
They have a stereo system that sells for $2200 and is on sale for 10% off and sales tax is 7%.
ELEN [110]

Answer:

$138.60

Step-by-step explanation:

10% of 2200 is 220.

2200 - 220 = 1980

7% of 1980 is 138.60

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3 years ago
In a 30-60-90 degree right triangle, the side opposite the 30-degree angle is
Afina-wow [57]

Answer:

It is the short leg.

Step-by-step explanation:

The triangle and is called a right triangle and the side opposite the 30-degree angle is the shorter leg

6 0
3 years ago
I am doing solving by elimination for Algebra 1 and I am lost here is the question
Brums [2.3K]
You have to rearrange into the format y=mx+b.
5 0
3 years ago
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Mr lim had just enough money to buy 6 similar lamps. However, he bought 3 such lamps and had $950 left. How much money did mr li
Artyom0805 [142]

Let the cost of a lamp = x

6 lamps would cost 6x

He bought 3 lamps at 3x plus Thad 950 left.

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Set up an equation and solve for x:

3x + 950 = 6x

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950 = 3x

Divide both sides by 3:

X = 316.67

Each lamp was $316.67

Multiply the price of a lamp by 6:

316.67 x 6 = 1900

He had $1900

6 0
3 years ago
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