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kondaur [170]
2 years ago
9

What type of number is -421

Mathematics
1 answer:
ludmilkaskok [199]2 years ago
3 0

Answer:

integers, rationals, irrational, real numbers, imaginary, and complex numbers.

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How to factorise the difference of perfect squares. for the g on the top and j on the top
Fed [463]

Answer:

see explanation

Step-by-step explanation:

A difference of two squares is factored as

a² - b² = (a - b)(a + b)

(g)

1 - 81y²

= 1² - (9y)²

= (1 - 9y)(1 + 9y)

(j)

64x² - 25y²

= (8x)² - (5y)²

= (8x - 5y)(8x + 5y)

7 0
3 years ago
Solve for x, and refer to the attached image.
AVprozaik [17]

Answer:

x=8

Step-by-step explanation:

7+5x

so basically what you have to do is take the 7 and subtract from both sides

so like this: 7-7 is 0 so that cancels then 47-7 is 40

then you take 5x and divide 40 by 5

so x=8

hope this helped!

4 0
2 years ago
What are the x-intercepts of the graphed function?
baherus [9]
The x-intercept of the graph is the x-point where graph touches the x-axis. ... Here graph touches the x-axis two times. (c) (–1, 2) and (1, 0): x-intercept are -1 and -1.
5 0
2 years ago
Natalie invests $5,000 into a savings account
natali 33 [55]
Hence thirty two dollars , is the solution
7 0
2 years ago
Please help me
iVinArrow [24]

Answer:

i think 4 th option

if u want to verify just substitute (4,-2)

8 0
3 years ago
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