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3 years ago

Y=4x 3x-y=1 I have to put this in (x,y)

Mathematics

1 answer:

kozerog [31]3 years ago

4 0

Answer:

(x,y)= (-1,-4)

Step-by-step explanation:

y=4x

put this value of y in 3x-y=1

3x-4x=1

-x=1

x= -1

y=4(-1)

y= -4

So (x,y) ordered pair is (-1,-4)

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Can someone please help with this 7th grade math?

zlopas [31]

Answer:

Step-by-step explanation:

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3 years ago

someone please explain to me how to find the area PLEASE! Find the area and perimeter of quadrilateral ABCD below. Explain your

Lunna [17]

Answer:

Part A) The area of the figure is $24\ units^{2}$

Part B) The perimeter of the figure is $20\ units$

Step-by-step explanation:

step 1

Find the area of the figure

we know that

The area of the figure is equal to the area of triangle ABD plus the area of triangle BCD

The area of triangle is equal to

$A=\frac{1}{2}bh$

Area of triangle ABD

Observing the graph

$b=BD=(-2+8)=6\ units$

$h=(9-5)=4\ units$

substitute

$A=\frac{1}{2}(6)(4)=12\ units^{2}$

Area of triangle BCD

Observing the graph

$b=BD=(-2+8)=6\ units$

$h=(5-1)=4\ units$

substitute

$A=\frac{1}{2}(6)(4)=12\ units^{2}$

The area of the figure is

$12\ units^{2}+12\ units^{2}=24\ units^{2}$

step 2

Find the perimeter of the figure

we know that

The perimeter of the figure is equal to

$P=AB+BC+CD+AD$

we have

$A(-5,1),B(-8,5),C(-5,9),D(-2,5)$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

Find the distance AB

$d=\sqrt{(5-1)^{2}+(-8+5)^{2}}=5\ units$

Find the distance BC

$d=\sqrt{(9-5)^{2}+(-5+8)^{2}}=5\ units$

Find the distance CD

$d=\sqrt{(5-9)^{2}+(-2+5)^{2}}=5\ units$

Find the distance AD

$d=\sqrt{(5-1)^{2}+(-2+5)^{2}}=5\ units$

substitute the values

$P=5+5+5+5=20\ units$

7 0

3 years ago

1. If h(x) = 4x - 2, then which of the following is the solution to h(x) = 3 ?

luda_lava [24]

Answer:

Step-by-step explanation:

h(x)=4x-2 h(x)=3

h(3)=4(3)-2 substitute

h(3)=12-2 multiply

=10 subtract

8 0

2 years ago

What is true regarding two adjacent arcs created by two intersecting diameters?

Juli2301 [7.4K]

Given:

Two diameters intersect each other.

To find:

The correct statement regarding two adjacent arcs created by two intersecting diameters.

Solution:

We know that, two diameter intersect each other at origin and measure of arc is equal to the corresponding angle generated by the intersection of diameters.

If two lines intersect each other then we get 4 angles and sum of any two adjacent angles is 180°.

It means the sum of any two adjacent central angles generated by the intersection of diameters is 180°.

So, the sum of two adjacent arcs created by two intersecting diameters is 180°.

Therefore, the correct option is C.

7 0

2 years ago

A server sees 90 customers over 6 hours. At the same rate, how many customers would the server see in 10 hours? *

nirvana33 [79]

Answer:

150

Step-by-step explanation:

First we have to find the unit rate. So we divide 90 by 6 and we get 15. So the server would see 15 customers in one hour. Now we multiply 15 by 10 and get 150.

If we want to check our answer we can multiply 6 by 15 and we get 90. So now we can conclude that both are true.

Hope I helped!!

6 0

3 years ago