3 years ago

Solve x4 − 7x2 − 18 = 0

Mathematics

2 answers:

babunello [35]3 years ago

5 0

Thw answer is X = 3 or -3

Andrew [12]3 years ago

3 0

Answer:

the answer is

x=±3,±√2

Step-by-step explanation:

(x^2−9)(x2+2)=0

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6 pi equals how many degrees

pantera1 [17]

6 oi equals 30 degrees

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2 years ago

Population in a Small Town, USA was 5,054 in 2007. The populations increase by 2% annually. Show and explain all work.

kakasveta [241]

Answer: a. $f(x)=5054(1.02)^x$

b. The population in 2032 will be 8292.

Step-by-step explanation:

Exponential growth equation: $y=a(1+r)^x$ , where a = initial value , r = growth rate, x = time period

Given: a = 5054 , r= 0.02

a. Required exponential growth function: $f(x)=5054(1+0.02)^x$

$f(x)=5054(1.02)^x$

b. For 2032, x= 25

$f(25)=5054(1.02)^{25}$

$\approx8291.62\approx8292$

The population in 2032 will be 8292.

5 0

2 years ago

Roxanne has 1/2 as many beads as Sherrie. The number of beads Sherrie has is 4/5 that of Ting Ting's. Ting Ting has 165 beads. H

gregori [183]

165 Ting Ting's beads* (4 Sherrie's beads/ 5 Ting Ting's beads)= 132 Sherrie's beads.
132 Sherrie's beads* (1 Roxanne's bead/ 2 Sherrie's beads)= 66 Roxanne's beads.
Now that we know the number of beads Roxanne and Ting Ting have, let's subtract:
165 beads- 66 beads= 99 beads.
Hope this would help :))

7 0

3 years ago

Read 2 more answers

a bank is offering a simple interest of 3.2% on a saving account , if i deposit $15000, how much will the interest be in 6years?

kotykmax [81]

Answer:

$2,880

Step-by-step explanation:

interest = (principal * rate * time)/100

= (15000 * 3.2 * 6)/ 100

= 2880

8 0

3 years ago

-0.38 written as a fraction the 8 is a repeating decimal

Simora [160]

Answer:

$\frac{-7}{18}$

Step-by-step explanation:

The line in between the numerator and denominator serves as a division sign so, -7 divided by 18 equals -0.38 with the 8 repeating

8 0

3 years ago