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1 year ago

15

Someone pls help: Find the slope of the line described by

1 answer:

vodka [1.7K]1 year ago

6 0

-107 is the answer

Hope this helps

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Find two consecutive positive integers such that the sum of their squares is 421 .

maria [59]

We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
x^2+(x^2+2x+1)=421
2x^2+2x-420=0
According to the formula of quadratic
x=14 or-15
cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421

Hope that helps you!!

4 0

3 years ago

Fractorise the following (a-b)²+(a-b)

Lisa [10]

Step-by-step explanation:

taking common (a-b)

so we get the answer

5 0

2 years ago

PleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeSimplify -2^3

mars1129 [50]

Answer:

Therefore,

$(-2)^{3}=-8$

Step-by-step explanation:

Simplify

-2^3

$(-2)^{3}$

It is read as negative 2 raised to the power three,

also it is the cube of negative 2

we know that $a^{3}$ given as

$a^{3}=a\times a\times a$

so for negative a i.e -a

$(-a)^{3}=-a\times -a\times -a$

substituting a = 2 we get

$(-2)^{3}=-2\times -2\times -2$

negative sign multiplied by odd number of times then the sign remains negative.

Therefore,

$(-2)^{3}=-8$

5 0

3 years ago

Need help plsss ASAP

Phantasy [73]

Answer: I would choose option "c"

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Solve the equation. 6 = 2(x + 8)- 5x<br> a. 2/3<br> b. 3 1/3<br> c. - 2/3<br> d. -3 1/3

Lemur [1.5K]

6 =2(x+8)-5x
6 =2x+16-5x
6-16=2x-5x
-10=-3x
10=3x
x=10/3
hence proved

6 0

3 years ago