PLSSSSS HELP I GIVE U ANYTHING JUST PLZ HELP!!!!!!!!!!!!

Answer:

9.304

Step-by-step explanation:

company wishes to estimate the mean monthly electric bill. If the standard

deviation is $400, how large a sample is required to estimate the mean electric bill to within $100

with 98% confidence?

Sample size, n = (Zcritical * σ) ÷ ME

σ = standard deviation ;

ME ≥ margin of error

α = 98% ; At 98% confidence level ;Zcritical = 2.326

n ≥ (2.326 * 400) / 100

n ≥ 930.4 / 100

n ≥ 9.304

n = 10

Answer:

Cone: You need the radius and height of the cone.

Cylinder: You need the radius and height the cylinder.

Sphere: You only need the radius of the sphere.

Step-by-step explanation:

For a lot of object shapes height and radius play a large role, the sphere is an outlier because of it's for a lack of a better word, spherical shape.

We know that, Congruent Triangles always have same size, angles and shape, just then only they are congruent to each other, by various criterions such as

1.) SAS 2.) AAS 3.) RHS 4.) SSS 5.) ASA

so the correct option is D.)

D.) size and shape

Answer:it’s b

Step-by-step explanation:

Answer:

Step-by-step explanation:

45 47

Answer:

6log_4(x) - 4log_4(y)

Answer:

Step-by-step explanation:

Answer:

x=2.16/x= -4.16

Step-by-step explanation:

you must use quadratic formula if the solved equation cannot be factorised

Answer:

C. Isosceles

E. Equilateral

F. Scalene

D. Right angled

Answer:

m = 5

Step-by-step explanation:

distance traveled D= 16m^2+100 miles

speed, S= 8m+10 mph

time taken, T = 2m hours

We know that  D = S×T

⇒ 16m^2+100 = (8m+10)× 2m

⇒ 16m^2+100 = 16m^2+ 20m

⇒ 20m = 100

⇒ m = 5

Therefore, the value of m is 5

Answer:

y= -5/4 x+3

Step-by-step explanation:

like I said plug it in

Answer:

What image? (9/ -0) Is 9 - 8 =1

Step-by-step explanation:

Answer:

you dont have the image of the graph.

Step-by-step explanation:

Answer:

Well if your on chrome book sign out and select add person and make your new email and password and you have a new account.

Step-by-step explanation:

Hope this helps and have a wonderful day!!!

Answer:

Account for what, brain ly

Step-by-step explanation:

step 1: Go to sign up

step 2: create a email

step 3: create password

Answer:

[tex] 426.96 \: {km}^{2} [/tex]

Step-by-step explanation:

Area of the shaded region = Area of triangle with base 40 km and height 27 km - Area of circle with radius (12/2) 6 km.

[tex] = \frac{1}{2} \times 40 \times 27 - 3.14 \times {(6)}^{2} \\ \\ = 20 \times 27 - 3.14 \times 36 \\ \\ = 540 - 113.04 \\ \\ = 426.96 \: {km}^{2} [/tex]

Answer:

x=32, x=0

Step-by-step explanation:

[tex](x-16)^2=256[/tex]

Take the square root of both sides

[tex]\sqrt{ (x-16)^2}=\±\sqrt{256}\\x-16=\±16[/tex]

x=16+16 or x=16-16

Therefore, x=32 or x=0

I hope this helps!

Answer:

x=32 and x=0

Step-by-step explanation:

Answer:

(a+b)(a+b)

=a^2 + ab + ab + b^2

=a^2 + 2ab + b^2

Answer:

(a+b)² = ( a +b ) (a + b )

= a² + b² + 2ab

Answer:

1. 7% change increase

2. 27%change decrease

3. 39% change decrease

4. 29% change increase

Step-by-step explanation:

I hope this is right

Answer:

y=5.72

Step-by-step explanation:

Let's solve your equation step-by-step.

y−1.02=4.7

Step 1: Add 1.02 to both sides.

y−1.02+1.02=4.7+1.02

y=5.72

Answer: y=5.72

Step-by-step explanation:

4.7 plus 1.02 equals 5.72

5.72 minus 1.02 equals 4.7

Answer: 1.65f

Step-by-step explanation:

Last year's admission fee = f

Percentage Increase in the admission fee = 65%

New admission fee will be the addition of last year's admission fee and the increase in the admission fee. This will be:

= f + (65% × f)

= f + (65/100 × f)

= f + (0.65 × f)

= f + 0.65f

= 1.65f

The new admission fee is 1.65f

Answer:

D

Step-by-step explanation:

Two numbers are multiplied together.

5 * 2/3

When you take the log, you get

log(5) + log(2/3)

log 2/3 is raised to the x power.

log(5) + log(2/3)^x                    

The x is a power and it can be taken down and multiplied by log(2/3)

log(5) + x log(2/3)

Answer:

D. log(5) + x • log(2/3)

Step-by-step explanation:

Hope this helps

Answer:

Without the math: 65 hours is 5 half-lives

13 hrs = 1/2

26 hrs = 1/4

39 hrs = 1/8

65 hrs = 1/32

(1/2)^5 = 1/32

400 mg / 32 = 12.5 mg   that is, after 5 half-lives

Answer:

Mean = 4

Step-by-step explanation:

Mean = (Sum of all numbers)/(How many numbers there are)

There are 3 numbers

Mean = (5 + 4.5 + 2.5)/3

Mean = 12/3

Mean = 4

Answer:

[tex] \frac{5 + 4.5 + 2.5}{3 } = \frac{5 + 7}{3} = \frac{12}{3} = 4[/tex]

Answer:

x = 15.75

Step-by-step explanation:

I'm going to assume you mean solve for x so:

[tex]\frac{9}{x} =\frac{32}{56} \\\\32x=504\\x=15.75[/tex]

Answer:

30%

Step-by-step explanation:

Since you paid 560 dollars for 8 nights, you can divide to see how much you pay one night. You pay 70 dollars per night. So 30% off from $100 is $70

Answer:

30 percent

Step-by-step explanation:

math

Answer

the answer is 21, hope this helps

Answer:

x = - 3

Step-by-step explanation:

The axis of symmetry is a vertical line passing through the vertex of the parabola with equation

x = c

where c is the value of the x- coordinates the line passes through

The line passes through (- 3, - 6), (- 3, 4 ) with x- coordinates - 3

Then equation of axis of symmetry is x = - 3

Answer:

In(8x)=[In]8 + [In]x

Step-by-step explanation:

By product rule:

[tex]In(8x)=[In]8 + [In]x[/tex]