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3 years ago

What are the intercepts?

Mathematics

1 answer:

klio [65]3 years ago

7 0

Answer:

<em><u>In analytic geometry, using the common convention that the horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system.[1] As such, these points satisfy x = 0.</u></em>

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1234567891011 Mistake

nexus9112 [7]

Answer:

WHAT IS THE QUESTION?

Step-by-step explanation:

PLEASE COMMENT DOWN I WILL SHOUT OUT YOUR NAME IN MY YT CHANNEL JUST PUT DOWN THE ANSWER

3 0

3 years ago

Javon spent %687 on pokemon cards. Energy cards cost $6 and dragon cards cost $5. If he bought a total of 127 packs then how man

pshichka [43]

Answer:

Javon purchase Energy cards = 52

Javon purchase Dragon cards = 75

Step-by-step explanation:

Given - Javon spent $687 on pokemon cards. Energy cards cost $6

and dragon cards cost $5.

To find - If he bought a total of 127 packs then how many of each did he buy ?

Proof -

Let Javon purchase Energy cards = x

Javon purchase Dragon cards = y

Now,

Given that he bought a total of 127 packs

⇒x + y = 127

Also,

Cost for 1 Energy card = $6

⇒Cost of x Energy cards = $ 6x

And

Cost of 1 Dragon card = $5

⇒Cost of y Dragon card = $ 5y

Now,

Given that Javon spent $687 on pokemon cards.

⇒6x + 5y = 687

∴ we get

x + y = 127 ..................(1)

6x + 5y = 687 .................(2)

Multiply by 6 in equation (1) , we get

6(x + y) = 6(127)

⇒6x + 6y = 762 .................(3)

Now,

Subtract equation (2) from equation (1) , we get

6x + 6y - (6x + 5y )= 762 - 687

⇒6x + 6y - 6x - 5y = 75

⇒y = 75

Now,

Put the value of y in equation (1), we get

x + 75 = 127

⇒x = 127 - 75

⇒x = 52

∴ we get

Javon purchase Energy cards = x = 52

Javon purchase Dragon cards = y = 75

3 0

3 years ago

You draw one card from a standard 52-card deck. In how many ways could the card be face card or a six?

Nady [450]

16/25 because there are 3 face cards which have 4 different suits and 4 different suits for the number 6

8 0

3 years ago

What is the rate of change from 2012 to 2016?

Artyom0805 [142]

Answer:

D. 11.25 students per year

Step-by-step explanation:

8 0

3 years ago

In triangle , side and the perpendicular bisector of meet in point , and bisects . If and , what is the area of triangle

stich3 [128]

In triangle ABC, side AC and the perpendicular bisector of BC meet in point D, and BD bisects ∠ABC。 If AD = 9 and DC = 7, 145–√5 is the area of a triangle.

I supposed here that [ABD] is the perimeter of ▲ ABD.

As BD is a bisector of ∠ABC ,

ABBC=ADDC=97

Let ∠B=2α

Then in isosceles △DBC

∠C=α

BC=2∗DC∗cosα=14cosα

Thus AB=18cosα

The Sum of angles in △ABC is π so

∠A=π−3α

Let's look at AC=AD+DC=16 :

AC=BCcosC+ABcosA

16=14cos2α+18cosαcos(π−3α)

[1]8=7cos2α−9cosαcos(3α)

cos(3α)=cos(α+2α)=cosαcos(2α)−sinαsin(2α)=cosα(2cos2α−1)−2cosαsin2α=cosα(4cos2α−3)

With [1]

8=cos2α(7−9(4cos2α−3))

18cos4−17cos2α+4=0

cos2α={12,49}

First root lead to α=π4 and ∠BDC=π−∠DBC−∠C=π−2α=π2 . In such case ∠A=π−∠ABD−∠ADB=π4, and △ABD is isosceles with AD=BD. As △DBC is also isosceles with BD=DC=7, AD=7≠9.

Thus first root cos2α=12 cannot be chosen and we have to stick with the second root cos2α=49. This gives cosα=23 and sinα=5√3.

The area of a triangle ABD=12h∗AD where h is the distance from B to AC.

h=BCsinC=14cosαsinα

Area of triangle ABD=145–√5

= 145–√5.

Incomplete question please read below for the proper question.

In triangle ABC, side AC and the perpendicular bisector of BC meet in point D, and BD bisects ∠ABC。 If AD = 9 and DC = 7, what is the area of triangle ABD?

Learn more about the Area of the triangle at

brainly.com/question/23945265

#SPJ4

6 0

2 years ago