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3 years ago

Just need help on graph. Plz explain if you can. I have a few more questions like this.

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

6 0

Vertex-either the highest point or lowest depending on which way the parabola is (-1,-9)

Y- int- where the graph intersects the y int- (0,-8)

X- int- where the graph intersects the x int- (-4,0) and (2,0)

axis of symmetry- where the line could be folded in half and be the same- x=-1

equation: (x-1)^2 -9=y

defon3 years ago

6 0

The vertex is where the goes up/down ( the endpoint).
The y intercept is where the graph (parabola) touches the y axis (in this case -7,5)
The x intercept is where the graph goes through the x axis (in this case it’s in 2 places; 2 and -4

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A board of length 7 divided by the quantity x minus 2 end of quantity meters was cut into two pieces. If one piece is 3 divided

bulgar [2K]

Answer:

Length of other board $=\frac{4x+20}{x^{2} -4}$ metres

Step-by-step explanation:

Given: Length of board = $\frac{7}{x-2}$ metres

Length of board was divided into two.

Length of one piece = $\frac{3}{x+2}$ metres

Let $l$ = length of the other board

Length of the other board = Length of board - Length of one piece

So, $l=\frac{7}{x-2}-\frac{3}{x+2}$

$l=\frac{7(x+2)-3(x-2)}{(x-2)(x+2)} \\\\l=\frac{7x+14-3x+6}{x^{2} -4} \\\\l=\frac{4x+20}{x^{2} -4}$

Thus, length of the other board $=\frac{4x+20}{x^{2} -4}$ metres

4 0

3 years ago

Please help me with math please, they are number lines

Novay_Z [31]

So u have to rearrange to find x again
You look at the equation and u can see that if u take away 14 from both sides it will leave u with:
X/-3<-2
Now as x is over - 3, the opposite of divide is multiply, so you multiply both sides by - 3.
This leaves you with your answer:
x<6

So the number line which represents this is C.

3 0

4 years ago

Ella used three fourths of lemons to make one half liters of lemonade. If ella's recipe is for 1 liter of lemonade, how many lem

DiKsa [7]

Answer:

the number of lemons required is 6

Step-by-step explanation:

The computation of the number of lemons she required to make the 4 times the receipe is shown below;

Given that

She used three fourth of lemons for make one half liters of lemonade

Now for four times she required the lemons

= (3 ÷ 4) × 2 × 4

= 6

Hence, the number of lemons required is 6

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3 years ago

If 4/3 liters of water are enough to water 2/5 of the plants in the house, how much water is necessary to water all the plants i

lyudmila [28]

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3 years ago

What is a developing nation?

SCORPION-xisa [38]

Answer:

C.) (I think you meant to put c here) State with little or no economy

Step-by-step explanation:

This one was very confusing because I was beginning to think the answer could possibly be D as well. However, based on background knowledge of many developing countries in the previous century and also the present, many nations are still classified as developing despite the states being into conflict. Therefore revealing the states don't have to be working together in order to build an economy in order to be classified as a developing nation.

Now without a doubt, I do recall that a developing nation has little to no economy. That statement surely is more accurate due to it providing a fact rather than a hypothesis.

6 0

3 years ago

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