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3 years ago

Find the values of x, y, and z

Mathematics

1 answer:

LiRa [457]3 years ago

6 0

Answer:

Step-by-step explanation:

A triangle has a total of 180 degrees of angles. This means that if you add the angles of a triangle, it will equal 180. For example, 90+45+45 gives you 180, and a right triangle. You can find the right answer by looking at which sum of angles equals 180. So,

90+76+104=280 Wrong.

90+45+90=225 Wrong.

90+38+52=180 Right HOORAY.

90+38+104=232 Wrong.

The sum of the angles of a triangle will always equal 180, so remember that. No matter what shape or size, if it isnt 180, its not a triangle.

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Victoria recently switched to a new electric company. If she uses between 0 and 400 kilowatt-hours (kWh) of electricity per mont

Gekata [30.6K]

Answer:

see the explanation

Step-by-step explanation:

The question is

Identify the domain and the range, using words and inequalities

Let

x -----> the number of kilowatt-hours (kWh) of electricity per month

y ----> the price per month

we know that

Part 1) For the value of x between 0 kWh and 400 kWh

$0\ kWh \leq x < 400\ kWh$

The price is equal to

$y=\$30$

therefore

The domain is the interval ------> [0,400)

The domain is all real numbers greater than or equal to 0 kWh and less than 400 kWh

The range is ($30)

The range is equal to $30

Part 2) For the value of x equal to 400 kWh or more per month

$x\geq 400\ kWh$

The domain is the interval -----> [400, infinite)

The domain is all real numbers greater than or equal to 400 kWh

The price is

$y=0.097x$

Find the range

For x=400 kWh

$y=0.097(400)=\$38.8$

$y\geq \$38.8$

The range is the interval -----> [38.8, infinite)

7 0

3 years ago

(3x-2)(2x^2+3x-1), after I distribute how would I get an exponent of three, for the 6x?

Aliun [14]

Because when multiplying you add the number of variables, and there are 3 X's so it would be 6x with an exponent of 3

7 0

3 years ago

Evaluate 3x (2+6) divide 4 -2

kondaur [170]

Answer:

Step-by-step explanation:

Brackets always mean "DO THIS FIRST!!!"

2+6 = 8

Then, do 3 x 8. That is 24.

24 divided by 4 is 6.

6 - 2 is 4!

8 0

3 years ago

Can somebody plz just tell me if I’m doing these ratios right. If I’m not plz put the correct answer thanks!!

krek1111 [17]

no you are actually doing really good keep it up

6 0

3 years ago

Read 2 more answers

A map has a scale of 6 in. = 18 mi. If you measured the distance between two cities to be 26 in. on the map, how many miles woul

Travka [436]

Answer:

78 mi

Step-by-step explanation:

18/6 = 3

1 in= 3 mi

26×3= 78 mi

8 0

3 years ago