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4 years ago

Factoring the difference of two squares x^2-1

Mathematics

2 answers:

IceJOKER [234]4 years ago

8 0

(X^2-1^2) (x-1)(x+1) I hope that is good!

andre [41]4 years ago

6 0

Difference of 2 perfect squres
if yo have
a^2-b^2 that equals (a-b)(a+b)

x^2-1^2=(x-1)(x+1)
tada

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An account earns simple interest.

aleksley [76]

Answer:

1500/100 x 4 = 60

60 X 5 = 300

interest earned $ 300

total balance $1800

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3 years ago

For the following hypothesis test, where H0: μ ≤ 10; vs. HA: μ > 10, we reject H0 at level of significance α and conclude tha

Soloha48 [4]

Answer:

Type I error would occur

Step-by-step explanation:

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4 years ago

Perform the operation. Write your answer in scientific notation. 7×10^6-5.3×10^6

Lady_Fox [76]

7 • 10^6 - 5.3 • 10^6
= 1.7 • 10^6 in scientific notation

6 0

3 years ago

Read 2 more answers

Find the lateral area of a right circular cone whose radius is 6 feet and height is 8 feet.

Dmitry_Shevchenko [17]

Answer:

we know that

[the lateral area of a right circular cone]=pi*r*l

where

r--------------> the radius of the circle part of the cone

l--------------> the side (slant height) of the cone

r=6 ft

h=8 ft

Step 1

find the slant height of the cone

which is determined by using Pythagoras, since the cross section is a right triangle.

l² = h²+ r²------------> l²=8²+6²-------> l²=64+36---------> l=10 ft

Step 2

find the lateral area

[the lateral area of a right circular cone]=pi*r*l--------> pi*6*10----> 188.4 ft²

the answer is 188.4 ft²

7 0

3 years ago

Emma wants to build a fence around the perimeter of her lawn. Each foot of fence costs $2. The rectangular lawn has an area of 3

AlladinOne [14]

Answer:

$\$160$

Step-by-step explanation:

To find the cost of the entire fence, we need to first determine the lawn's length before calculating its perimeter.

Area of rectangular lawn = $lw$ (formula for the area of a rectangle)

$364=14l$

$l=26$ feet

Now that we have the lawn's length and width, we can calculate the perimeter:

Perimeter $= 2l+2w$ (formula for the perimeter of a rectangle)

$=2(26)+2(14)$

$=80$ feet

Since each foot of lawn costs $2, then the cost of the entire fence will be:

$80\times2 = \$160$

∴ The entire fence costs $\$160$ .

Hope this helps :)

3 0

3 years ago