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dmitriy555 [2]
2 years ago
12

Factorise fully (please help) ​

Mathematics
1 answer:
Alona [7]2 years ago
4 0

Answer:

(2ab + 1) • (4a2b2 + 2ab + 1)

——————————————

8

this is the answer I ended up with

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Hey there! Can you please help me with 6th grade :-)
Brilliant_brown [7]

Oh i miss 6th grade im in 7th now lol and yes  but i thank number 2 is 3 cnts

8 0
3 years ago
8X +6Y+4<br> Y=-3X+9<br> using substitution what numbers are the variables X and Y
Svetach [21]

Answer:

(5,6)

Step-by-step explanation:

8X +6Y=4

Y=-3X+9

Substitute the second equation into the first.  Every place you see y put -3x+9)

8x +6(-3x+9)=4

Distribute

8x-18x +54 = 4

Combine like terms

-10x +54 = 5

Subtract 54 from each side

-10x +54-54=4-54

-10x = -50

Divide by -10

-10x/-10 = -50/-10

x= 5

Now we need to find y

y = -3x+9

y = -3(5) +9

y = -15+9

y= 6

(5,6)

6 0
3 years ago
Suppose you had d dollars in your bank account. You spent $12 but have at least $51 left. How much money did you have initially?
PtichkaEL [24]

For this case we must raise an inequality.

We have "d" dollars initially and they are spent 12. Then:

d-12

At least 51 dollars remain, then, the sign of inequality is greater or equal in favor of the expressiond-12, that is:

d-12\geq 51

Resolving:

d\geq 51 + 12\\d\geq 63

There are at least 63 dollars left in the account.

Answer:

d-12\geq 51\\d\geq 63

8 0
3 years ago
Can you help me with this problem i need to go to sleep for school tmrrr​
ELEN [110]

Answer:

1.08

Step-by-step explanation:Simplify the radical by breaking the radicand up into a product of known factors.

6 0
3 years ago
Read 2 more answers
The coordinates of vertices of quadrilateral questions in picture please help
frutty [35]

Answer:

5.  (x, y) ⇒ (-x, y) — see attached for the diagram

6.  (x, y) ⇒ (x+3, y+5)

7.  dilation

Step-by-step explanation:

5. A point reflected across the y-axis will have the same y-value, but the opposite x-value. The transformation rule is ...

  (x, y) ⇒ (-x, y)

___

6. A horizontal translation by "h" adds the value "h" to every x-coordinate. A vertical translation by "k" adds the value "k" to every y-coordinate. Then a translation by (h, k) will give rise to the rule ...

  (x, y) ⇒ (x+h, y+k)

Your translation right 3 and up 5 will give the rule

  (x, y) ⇒ (x+3, y+5)

___

7. Any translation, rotation, or reflection is a "rigid" transformation that preserves all lengths and angles. Hence the transformed figure is congruent to the original.

When a figure is dilated, its dimensions change. It is no longer congruent to the original. (If the dilation is the same in x- and y-directions, then the figures are <em>similar</em>, but not congruent.)

3 0
3 years ago
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