3 years ago

Help please help please

Mathematics

1 answer:

stepladder [879]3 years ago

5 0

I️ can’t see the question

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Simplify (6x^-2)^2(0.5x)^4 show work please

tester [92]

(6x^-2)^2(0.5x)^4 = (6^2)(x^-2(2))(1/2)^4(x^4) = 36x^-4(1/16x^4) = (36/16)x^(-4+4) = 9/4

4 0

2 years ago

Read 2 more answers

Factor this polynomial completely x2 + 3x – 18 A. (x-2)(x + 9) B. (x+3)(x-6) оо C. (x - 3)(x+6) D. (x - 3)(x-6)

Umnica [9.8K]

Answer:

C. $(x-3)(x+6)$

Step-by-step explanation:

I think the equation meant $x^2+3x-18$ ?

Anyways, to factor these kinds of quadratic, keep into consideration:

$ax^2+bx+c=(x+w)(x+v)$

ONLY if:

$w+v=b\\wv=c$

Start off by finding factors of c, which in this case, -18:

±(1, 2, 3, 6, 9, 18)

If one of the numbers is negative then the other number must be positive.

Find which two factors will sum up to b, which in this case, is 3.

$1+(-18)\neq 3\\2+(-9)\neq 3\\3+(-6)\neq 3\\6+(-3)=3\\9+(-2)\neq 3\\18+(-1)\neq 3\\$

The only two factors that work are 6 and -3.

Replace them into the factored form:

$(x+w)(x+v)\\(x+6)(x-3)\\(x-3)(x+6)$

3 0

2 years ago

Read 2 more answers

you are installing a support wire for an electrical pole. the pole is 25 feet and the ground connection is 10 feet from the base

aniked [119]

ans=26.92

use trigonometric ratios

a²= b²+c²

a²=25²+10²

a²=625+100

now take square root on both sides

$\sqrt{a { }^{2} } = \sqrt{725}$

a=26.92

a=27 (2decimal place)

7 0

2 years ago

Maisie is exactly 135 weeks old. how many hours is this

Vinil7 [7]

24 times 7 = 168 times 145 = 22, 680 hours

7 0

2 years ago

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Shirley is drawing triangles that have the same area. The base of each

Zinaida [17]

Answer:

d. 16 and 6

Step-by-step explanation:

Triangle area = (base × height)/2

A = (8 × 12)/2 = 96/2 = 48

A = (16 × 6)/2 = 96/2 = 48

7 0

2 years ago