MATHEMATICS HIGH SCHOOL

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Pls help find the coordinate on the graph 25pts and brainliest

Answers

Answer 1

Answer:

-7,-3

Step-by-step explanation:

it's simple...first we write the x-axis and then the y-axis....

hope it helpe buddy!!!

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What is the product of (x+1) and (2x^2+3x-1)?
Subtracting 3xy2 from 8xy2 gives the same result as the expression. A. 3xy^2 - 8xy^2 B. -7xy^2 - 2xy^2 C. 7xy^2 - 2xy^2
Y=-x^2+20x-64 what is the axis of symmetry
A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of the spinner landing on yellow?

What is the vertex of the function f(x) = x2 + 12x?

Answers

We can start by figuring out the axis of symmetry.

y = x² + 12x = x (x + 12)

So roots are x = -12 or 0

Therefore axis of symmetry is x = (-12 + 0) / 2 = -6

We got x-coordinate of vertex. Now plug in x=-6 to solve for y.

y = (-6)² + 12(-6) = 36 - 72 = -36

Therefore vertex is (-6, -36).

Answer: The correct answer is A (-6,-36)

A rectangular box is twice as long as it is wide. The height of the box is 3 feet less than the width. If the box is x feet wide, what polynomial represents its volume in cubic feet?a. b.
c. d.
What is the common difference in the sequence 8, 16, 24, 32, . . .?
a. 24
b. 16
c. –8
d. 8
The floor of a rectangular room will be tiled with square tiles that measure 3 inches on each side. The room is 109 inches long and 103 inches wide. ...

Answers

Hello,

1)
x= the width
2x=the length
x-3= the height

V=x*2x*(x-3)=2x^3-6x²

2)
16-8=8
24-16=8
32-28=8
difference=8
answer D

3)
a) if you put the squares side by side horizontaly you will need 37*34=1258 squares (for a perfect job)
b) or 109*103/9≈1248 squares (cutting squares)

L is 2 times width
L=2W
heigt is 3 less than width
H=W-3

if W=x

V=??
V=LWH
W=x
L=2x
H=x-3
V=(2x)(x)(x-3)
V=(2x^2)(x-3)
V=2x^3-6x^2

common difference is the nth term minus the n-1 term
basically a term minus the one before it
16-8=8
common differnce is 8

how many tiles
find area of room
area of room=109*103=11227
area of tile=3^2 since it is asquare or 9
areaof1tile times how many tiles=areaofroom
9*howmany=11227
divide both sids by 9
how many=1247.44444
round up so you have enough (since you can't buy 0.4444 tiles)
how many=1248

1248 tiles

Solve for x. Express the answer in simplest form.
2/1= 8x-2/9

Answers

First, you put known numbers apart ( numbers without x ) and unknown numbers apart (numbers with x ), and of course don't forget that when you move a number from a part to another, his sign change, So you get:
$(2)/(1) = 8x - (2)/(9)$
$(2)/(1) + (2)/(9) = 8x$

Now, you need to have the same denominator so you can add 2/1 and 2/9. So, you multiply 2/1 by 9, so you get:
$(2*9)/(1*9) + (2)/(9) = 8x$
$(18)/(9) + (2)/(9) = 8x$

Then you add the 2 fractions and you get:
$(20)/(9) = 8x$

Now, you divide each term by 8, so you get:
$( (20)/(9) )/(8) = (8x)/(8)$

in $(8x)/(8)$ , you removed 8 and 8 and you get x, so you get:
$( (20)/(9) )/(8) = x$

as you know, 8 = 8/1, and when you got a division of 2 fractions, you multiply the first by the inverse of the second, which means you get:
$(20)/(9) * (1)/(8) = x$

And now you multiply, so you get:
$(20*1)/(9*8)$
$(20)/(72)$

20 and 72 have a common factor, so you divide each by 4, and you get:
$(20/4)/(72/4)$
$(5)/(18)$

So, $x = (5)/(18)$

Hope this Helps! :D

2/1= 8x-2/9
2= 8x-2/9
18=72x-2
20=72x
x=20/72
x= 5/18

Which is the intersection of the sets {1, 4, 8, 9} and {2, 4, 7, 9, 11}?{4, 9}

{1, 2, 7, 8, 11}

null set

{1, 2, 4, 7, 8, 9, 11}

Answers

7
Here is a tip:
so you have {1 2 4 7 8 9 11} Take your fingers on each end and cover each number till you get you the middle.

Write as ratio in simplest form

91%, 12%, 6%, 93%, 62%, 14%, 70%, 400%,.

Answers

a)
91/100
we cannot simplify this

b) 12/100 = 6/50
cannot be simplified further

c) 6/100 = 3/50

d) 93/100
cannot be simplified

e) 62/100 = 31/50

f) 14/100 = 7/50

g) 70/100 = 7/10

h) 400/100 = 4

when something is in percentage that means it is some part of 100% that is why we divide by 100.

joanne buys a rectangular rug with an area of 35/4 square meters. The length of the rug is 7/2 meters. What is thw width, in meters, of the rug?