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3 years ago

I need help please I don't understand it

Mathematics

1 answer:

german3 years ago

3 0

Answer:

The third and the forth

Step-by-step explanation:

Functions do not have repetition in the x column.

Since the other options have doubles of an x value

(or, to phrase it differently, two y values for one x value)

they are not functions.

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How do you find a missing side of a triangle using SOH CAH TOA

katrin2010 [14]

Answer:

See explanation and attachment

Step-by-step explanation:

SOH CAH TOA is a mnemonic.

SOH means $\sin \theta=\frac{Opposite}{Hypotenuse}$

CAH means $\cos \theta =\frac{Opposite}{Hypotenuse}$

TOA means $\tan \theta=\frac{Opposite}{Adjacent}$

Given an angle and a side of a right angle triangle, you can use the appropriate ratio to find the missing side.

For instance, find x in the diagram in the attachment.

In this case the best ratio to use is TOA.

$\tan 60\degree=\frac{\sqrt{3} }{x}$

$\implies x=\frac{\sqrt{3} }{\tan 60}$

$x=\frac{\sqrt{3} }{\sqrt{3} } =1$

All the other ratio also follow the same pattern

NB: Your calculator in degree should give $\tan 60\degree=\sqrt{3}$

3 0

3 years ago

Solve for x. 10 15+ 2x K. L M x+19 (A) 2 B) -4 D 3

aksik [14]

Answer:

Step-by-step explanation:

I did the same question last week for a test

8 0

3 years ago

Determine whether the given number is a solution of the given equation.

poizon [28]

Answer:

Yes

Step-by-step explanation:

Switch x for 6:

(6)-8=-2

Subtract 6 from 8:

-2=-2

-2 does equal -2 so 6 is a solution.

4 0

2 years ago

A 4-pint carton of sour cream costs $9.12. What is the price per cup?

Mamont248 [21]

1 pint = 2 cups

1 pint x 4 & 2 cups x 4

4 pints = 8 cups

9.12/8

1.14

$1.14 per cup

5 0

3 years ago

The sum of two numbers is 36 . The larger number is 22 more than the smaller number. What are the numbers?

Setler [38]

X + y = 36
x = y + 22

y + 22 + y = 36
2y + 22 = 36
2y = 36 - 22
2y = 14
y = 14/2
y = 7

x + y = 36
x + 7 = 36
x = 36 - 7
x = 29

so ur 2 numbers are : 7 and 29

4 0

3 years ago