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jeka57 [31]
3 years ago
11

Help me answer this, thank you

Mathematics
1 answer:
anastassius [24]3 years ago
4 0

Answer:

4

Step-by-step explanation:

P={1,2,3,4,5,6}

Q={3,4,5,6,7,8,9}

PnQ={3,4,5,6}

Therefore, n(PnQ) =4

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Parallel and perpendicular Lines faqing help me
liberstina [14]

1.

Perpendicular. y=3x+4

Parallel. y=-1/3 x-8/3

2.

Perpendicular. y=-x-1

Parallel. y=x+11

3.

Perpendicular. y=7/4 x+8

Parallel. y=-7/4 x-9/7

4.

Perpendicular. y=4/5 x-3

Parallel. y=-5/4 x+35/2

yeesh, that took a while :) hope I helped!

4 0
3 years ago
Which combination of shapes can be used to create the 3-D figure?
Leto [7]

Answer: Two regular octagons and eight congruent rectangles

Step-by-step explanation:

An octagon has 8 sides and the shapes on the bottom of the shape are 8 rectangles.

6 0
3 years ago
Read 2 more answers
Squareroot(y-1) + 3 = y
jek_recluse [69]
Note:xy means x times y and x(y) means the same thing

so
first we get rid of square root then
make the equation equal to zero becaues if
xy=0 then x or/and y=0



squareroot(y-1)+3=y

isolate the squareroot
subtrac 3 from boht sides

squareroot(y-1)=y-3

square both sides (since they are equal, you should be able to square both sides and still make it true)

(squareroot(y-1))^2=(y-3)^2
(y-1)=(y-3)(y-3)
y-1=y^2-6y+9
subtrac y from both sides
-1=y^2-7y+9
add 1 to both sides
0=y^2-7y+10
find what two number multiply to make 10 and add to get -7
the answer is -2 and -5

0=(y-5)(y-2)
therfore
y-5=0
and/or
y-2=0

therefor
y=5 or/and 2 might work
let's try out 2
square root(2-1)+3=2
square root(1)+3=2
1+3=2
false
so 2 doesn't work



let's try 5
squareroot(5-1)+3=5
squareroot(4)+3=5
2+3=5
5=5
true

y=5
7 0
3 years ago
PLEASE HELP ME I AM TAKING A TEST AND I NEED HELP!!!
zhannawk [14.2K]
Part A.
y=4x+3

Part B.
11=4x+3
8=4x
2=x
2 dollars

Part C.
4(3)+4(2)=12+8=20

It would be enough if there is no sales tax.

Hope this helps!
Your fortune is "Only one fortune a day!"
3 0
3 years ago
Helps me pls if u don’t then i’m a witch and you will get cursed by me wowisheiwi
Maksim231197 [3]

Answer:

[• 0>×]

°×>0

°0≥×

°×≥0

Step-by-step explanation:

I hope it's help^^

6 0
2 years ago
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