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kirill115 [55]
2 years ago
8

Graph each equation y=4x-1

Mathematics
1 answer:
vfiekz [6]2 years ago
7 0
Rise over run |
We know the b value, so put a point at 0,-1
Now including rise over run, since the slope is represented by x, we know the slope is 4.
Which means 4 over 1
Rise up 4 and go run 1
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What is the area of the triangle shown
Sati [7]

Answer:

The answer is 40 sq. units

That is: 1/2×b×h (formula for area of triangle)

1/2×10×8

= 40

7 0
3 years ago
Diego is flying from Philadelphia to Barcelona. On the trip to Barcelona, the plane flies at a constant cruising speed of 550\,\
Helga [31]

Answer: Correct

A. The cruising speed on the flight from Philadelphia to Barcelona. 550mph shown. It is Faster.

Step-by-step explanation:

Hour  1          2         3

Miles  530   1060    1590

Divide: Miles divided by Hours

Answer: 530 - The cruising speed on the flight home

by H.E.J.

6 0
3 years ago
Read 2 more answers
Solve the equation for all real solutions. <br> 15n^2-22n+8=0
Salsk061 [2.6K]

I hope it helps you......

7 0
2 years ago
Which of the following is equal to 1/5^-2<br>A.1/25<br>B.-1/25<br>C.25<br>D.1/7
Ede4ka [16]

Answer:

  C.  25

Step-by-step explanation:

The applicable rule of exponents is ...

  a^b = 1/a^-b

Matching this pattern to your expression, you see that ...

  a = 5

  b = 2

Then ...

  1/5^-2 = 5^2 = 25

5 0
2 years ago
A 2x2 square is centered on the origin. It is dilated by a factor of 3. What are the coordinated of the vertices of the square?
Alexxx [7]

<u>Answer</u>:

The vertices are:

A' = (-3, -3)

B' = (3, -3)

C' = (3, 3)

D' = (-3, 3)

The ratio of area of  larger square to smaller square is 9:1

<u>Step-by-step explanation:</u>

Given:

A 2 x 2 square is centered at the origin.

So, the center of the square is (0, 0)

Since it is 2 x 2 square, the side of the square is 2 units.

So, the vertices of the 2 x 2 square are A (-1, -1),  B(1, -1), C(1. 1), D(-1, 1)

The above square is dilated by a factor of 3.

Let's name the dilated square A'B'C'D'

To find the coordinates of the vertices of dilated square, we need to multiply each vertices of ABCD by 3.

A(-1, -1) = 3(-1, -1) = A'(-3, -3)

B(1, -1) = 3(1, -1) = B'(3, -3)

C(1, 1) = 3(1, 1) = C'(3, 3)

D(-1, 1) = 3(-1, 1) = D'(-3, 3)

To find the area of the small square

the side  of the small square is 2 units

so the are of the small square is 2^2 = 4 square units

To find the area of the larger square

lets find the side AB of the square using distance formula

=>\sqrt{(x_2 -x_1)^2 +(y_2-y_1)^2}

=>\sqrt{(3 - (-3))^2 +(-3 - (-3))^2}

=>\sqrt{(3 +3)^2 +(-3 +3)^2}

=>\sqrt{(6)^2 +(0)^2}

=>\sqrt{36}

=>6

AB =6 units

In a square all the sides will be equal

Now the area of the larger square will be

6^2

36 square units

The ratio of larger square to smaller square is

=>36 : 4

=>9 : 1

5 0
3 years ago
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