Lots of questions please help!

Mathematics

1 answer:

Elan Coil [88]3 years ago

4 0

Hi again :)

(3p +2)(5p-1)
Distribute '
(3p)(5p)+(3p)(-1)+(2p=)(5p)+(2)(-1)
15p² - 3p + 10x - 2
15p² + 7p - 2
Thus, the correct option is : C

(5w+2)(8w+5) It says to use the tab, but I don't know :) so I am using my way :)
Distribute
(5w)(8w)+(5w)(5)+(2)(8w)+(2)(5)
40w² + 25w + 16w + 10
40w² + 41w + 10
Thus, The answer is B

Again, I don't know how to solve it by suing the tab. However, I will use my way :)
(-5y+3)(2y+5)
Distribute
(-5y)(2y)+(-5y)(5)+(3)(2y)+(3)(5)
-10y² - 25y + 6y + 15
-10y² - 19y + 15
Thus, the answer is : D

(6x - 5)(2x - 3)
Distribute
(6x)(2x)+(6x)(-3)+(-5)(2x)+(-5)(-3)
12x² - 18x - 10x + 15
12x² - 28x + 15
The answer is : A

For #12 The answer is : C

Now let's solve #13
(4x -6y³)²
Distribute
(4x)(4x)+(4x)(-6y³)+(-6y³)(4x)+(-6y³)(-6y³)
16x² - 24xy³-24xy³+36y^6
36y^6 - 48xy³ = 16x²

The answer is B

wow, that was a lot of work. Good luck!

You might be interested in

Standard printer paper has a thickness of 0.1mm. write an equation for a function that should approximately the thickness of a s

ladessa [460]

Folding a paper will make it thickness become double from it before.
Unfolded paper has 1 thickness
1 times folded paper has 2 thickness
2 times folded paper has 4 thickness
3 times folded paper has 8 thickness

From here it is clear that the pattern is $2^{n}$ . SInce the paper is 0.1mm, then the function would be:
f(n)= $2^{n}$ x 0.1mm

4 0

3 years ago

the measure of one of the angles of a triangle is 35 degrees, the sum of the measures of the other two angles is 145 degrees and

kozerog [31]

80 and 65 are the measurements

7 0

3 years ago

A relative asked her aunt that lives in Canada to send her some money to help her pay for her school tuition in the US. Her aunt

Bezzdna [24]

Answer:

Step-by-step explanation:

ejbvsksfkdsk

4 0

3 years ago

Read 2 more answers

How to solve a log equation with variable in the exponent?

GREYUIT [131]

Example...

4^x = 16
log(4^x) = log(16)
x*log(4) = log(16)
x = log(16) / log(4)

6 0

4 years ago

Find the equation of a line that intersects with y=2x-1 on the y-axis and is parallel to y=-x.

brilliants [131]

First you multiply2x1 which is 2so now you know that y=2 right then you multiply 2 x 3=6 6=x for the last you wright YxX = 2 x 6=12.Hope I helped) this is your answer

8 0

3 years ago