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3 years ago

Please answer the questions

Mathematics

1 answer:

Paladinen [302]3 years ago

5 0

Draw a van diagram then in the middle write what is the same about them. Then state why and how these are the same

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Y = x - 4 -2x + y = 18 Use elimination pls

Aleks [24]

Answer:

x = -22 , y = -26

Step-by-step explanation:

Solve the following system:

{y = x - 4 | (equation 1)

y - 2 x = 18 | (equation 2)

Express the system in standard form:

{-x + y = -4 | (equation 1)

-(2 x) + y = 18 | (equation 2)

Swap equation 1 with equation 2:

{-(2 x) + y = 18 | (equation 1)

-x + y = -4 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{-(2 x) + y = 18 | (equation 1)

0 x+y/2 = -13 | (equation 2)

Multiply equation 2 by 2:

{-(2 x) + y = 18 | (equation 1)

0 x+y = -26 | (equation 2)

Subtract equation 2 from equation 1:

{-(2 x)+0 y = 44 | (equation 1)

0 x+y = -26 | (equation 2)

Divide equation 1 by -2:

{x+0 y = -22 | (equation 1)

0 x+y = -26 | (equation 2)

Collect results:

Answer: {x = -22 , y = -26

8 0

4 years ago

Read 2 more answers

A lone segment has ______ endpoints. 1) three 2)two 3)zero 4)one

Nikolay [14]

Answer:

Step-by-step explanation:

A line segment forms when it has two end points

8 0

3 years ago

Read 2 more answers

Look at the attachment.

Inga [223]

First, find the area of the reptile room and the aquarium. A=l*w=72*83=5,976
Second, find the area of ONLY the reptile room. A=l*w. l=72-52=20 w=83-32=51
A=20*51=1,020
Third, find the area of the Amphibian room and the aquarium. A=l*w=72*83=5,976
Fourth, subtract the area of the reptile room from the area of the Amphibian room. 5, 976 - 1,020=4,956=Amphibian room area.
Fifth, add the area of the amphibian room to the area of the reptile room and the aquarium.
4,956+5,976=10,932 ft^2 is the total area of both rooms and the aquarium.

5 0

4 years ago

There are alot of bushes between you and the tree that prevent you from getting to it and being able to climb it. From where you

Grace [21]

Answer:

23.1604 feet (Pls give Brainliest)

Step-by-step explanation:

Since the angle of elevation is 37 degrees and the side adjacent to it is missing but the hypotenuse is given, you can use cosine. Since the hypotenuse is given, you can set up the equation:

cos 37 = x/29 (Multiply both sides by 29)

29 cos 37 = x (x represents the missing side which is the ground distance to the tree)

x ≈ 23.1604

7 0

4 years ago

How to simplify square root of 13 over 2

Alchen [17]

SqR 13/ 2 --> 3.606/2 --> 1.803

6 0

4 years ago