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WINSTONCH [101]

3 years ago

14

Whats the scientific notation of 0.258

1 answer:

loris [4]3 years ago

7 0

3 x 10^-5.
Explanation: You move the decimal point 5 places to the right, hence it <span>becomes 3 x 10 to the power of NEGATIVE 5 (moved 5 places right)</span>

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Which is an equation for the circle with center (-3 , 1) with a radius of 3?

sergiy2304 [10]

Answer:

The answer is c mate .

Step-by-step explanation:

Have a good time and if you find it useful . please rate brainliest . If not Thanks anyway .

6 0

3 years ago

A Ferris wheel has a diameter of 42 feet. It rotates 3 times per minute. Approximately how far will a passenger travel during a

Vedmedyk [2.9K]

<h2>Option C is the correct answer.</h2>

Step-by-step explanation:

Diameter, D = 42 feet

Circumference = πD = π x 42 = 131.95 feet

Number of rotations per minute = 3

Total time = 5 minutes

Total rotations = 5 x 3 = 15

Distance traveled per rotation = 131.95 feet

Distance traveled in 15 rotations = 15 x 131.95 = 1978 feet

Option C is the correct answer.

3 0

3 years ago

Which polynomial represents the sum below?<br> (3x2 + 3) + (3x2 + x + 4)

DIA [1.3K]

Add like terms just like you would anywhere else... $6 x^{2} +x+7$

6 0

3 years ago

1. What is the vertex form of the equation?

sergeinik [125]

1.vertex form is $y=a(x-h)^2+k$

to get into vertex form, complete the square

$y=-x^2+12x-4$

step 1: group x terms

$y=(-x^2+12x)-4$

step 2: factor coefient in front of x^2 term

$y=-1(x^2-12x)-4$

prep for next step: take 1/2 of linear (1st dgree term) and square it

$\frac{-12}{2}=-6$ , $(-6)^2=36$

step 3: add positive and negative of that previous number inside the parenthasees

$y=-1(x^2-12x+36-36)-4$

factor perfect squaer trionmial

$y=-1((x-6)^2-36)-4$

take out that -36 by expansion

$y=-1(x-6)^2+36-4$

$y=-1(x-6)^2+32$

2. factor out the 2

$2(x^2+8x+12)$

what 2 numbers multiply to get 12 and add to get 8?

2 and 6

$2(x+2)(x+6)$

3.

for $ax^2+bx+c=0$

$x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}$

in our case

$x^2-7x-6=0$

a=1, b=-7, c=-6

$x=\frac{-(-7) \pm \sqrt{(-7)^2-4(1)(-6)}}{2(1)}$

$x=\frac{7 \pm \sqrt{73}}{2}$

so $x=\frac{7+\sqrt{73}}{2}$ and $x=\frac{7-\sqrt{73}}{2}$

4. remember that $i=\sqrt{-1}$ so $i^2=-1$

treat $i$ as a variable

$(-2i)(8i)=$

$(-2)(i)(8)(i)=$

$(-2)(8)(i)(i)=$

$(-16)(i^2)=$

$(-16)(-1)=$

[tex}16[/tex]

8 0

3 years ago

Read 2 more answers

John invests 18000 at a rate of 4.5% compounded annually. What will his new balance be after 6 years

Korvikt [17]

Answer:

486,000

Step-by-step explanation:

(18000) (4.5) = 81,000

(81,000) (6) = 486,000

5 0

3 years ago