Use the order of operations to simplify the given expression. −2⋅[16÷(8−4)2]2

Answer:

So, the error is [tex]4.8\pi r[/tex].

Step-by-step explanation:

Error in measuring the radius = 0.6 %

Let the radius is r.

The surface area of sphere is

[tex]S= 4\pi r^2\\\\dS = 4 \pi\times 2 r dr\\\\dS =8\pi r \times 0.6 = 4.8\pi r[/tex]

Answer:

a ?

Step-by-step explanation:

Answer:

I'm pretty sure it's A? makes more sense

Given:

In ΔJKL, m∠L=90°, JL = 80, KJ = 89, and LK = 39.

To find:

The value of sine of ∠J.

Solution:

In a right angle triangle,

[tex]\sin\theta =\dfrac{Perpendicular}{Hypotenuse}[/tex]

In triangle JKL,

[tex]\sin J =\dfrac{LK}{KJ}[/tex]

[tex]\sin J =\dfrac{39}{89}[/tex]

[tex]\sin J =0.4382[/tex]

[tex]\sin J \approx 0.44[/tex]

Therefore, the value of sine of ∠J is about 0.44.

Answer:

Step-by-step explanation:

radius=diameter/2

=30/2

=15 cm

area of a clock=πr^2

=3.14*(15)^2

=3.14*225

=706.5 cm^2

hope it helps you see the attachment for further information

Answer:

45.312 cubic cm

Step-by-step explanation:

Since we are not asked what to look for, we can find the volume

volume of the pyramid = 1/3 * Base area * Height

Base area = 4.8 * 4.8 = 23.04 sq. cm

HEight of prism = 5.9cm

Volume of the prism = 1/3 * 23.04 * 5.9

Volume of the prism = 135.936/3

Volume of prism = 45.312 cubic cm

Answer: it’s 352425262625251452 is 4th of July and I am present

Step-by-step explanation:

Answer:

a + c = 30

8a + c = 100

a=10, c= 20

Step-by-step explanation:

cost = 8a + 1c  since it is 8 dollars for adult and 1 for child where a is the number of adults and c is the number of children

a+c = 30  since we know that 30 adults and children went

100 = 8a + 1c   and it cost 100 dollars

Let c =30 -a

100 = 8a + (30-a)

100 = 7a +30

Subtract 30 from each side

70 = 7a

Divide by 7

10 =a

Then a+c = 30

10+c = 30

c = 30-10

c = 20

Answer:

eqn1 : a +c=30

eqn2: 8a+c=100

20 children and 10 adults

Answer:

x-2

Step-by-step explanation:

Answer:

x-2

Step-by-step explanation:

(2x-3) - (x-1)

= 2x-3-x+1

= x-2

Answer:

(1,-1)

Step-by-step explanation:

Answer:

For a height of 66 inches, Z = 0.65.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The average height was about 64.3 inches; the SD was about 2.6 inches.

This means that [tex]\mu = 64.3, \sigma = 2.6[/tex]

66 inches:

The z-score for a height of 66 inches is:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{66 - 64.3}{2.6}[/tex]

[tex]Z = 0.65[/tex]

For a height of 66 inches, Z = 0.65.

Answer:

Hope it helps you:)

.....................

Answer:

15

Step-by-step explanation:

The equation is just a plug in and solve. you have your given variables and all you have to do it plug them into the matching spot and solve

R=8   P=7

 8+7=15

Answer:

7×3³-n

Step-by-step explanation:

This is a geometric sequence

Use nth term of geometric sequence formula



Ratio is 27/63=1/3

First term is 63



Simplify expression



Answer:

9x² + 6xy + y²

Step-by-step explanation:

(a + b)² =  a² + 2ab + b²

a  = 3x

b = y

(3x +y)² = (3x)² + 2*3x*y + y²

            = 9x² + 6xy + y²

(3x)² = 3²*x² = 3*3*x² = 9x²

Answer:

it becomes a 3 unit hight

9514 1404 393

Answer:

  yes

Step-by-step explanation:

A table is a 3-D object. It makes no sense to talk about reflecting it across a point or line. If the table is reflected across a vertical plane, the top will remain "up" and the legs will remain "down".

A glide reflection across a vertical plane will result in a functioning table.

Answer:

Yes you are.

Step-by-step explanation:

Just keep plugging in the values for x.  Good job.

yes you r doing it right

3/4 *0=0

Answer:

The only multiples of 3 between 20 and 30 are 21, 24, and 27. Only 27 satisfies the condition that it is 3 times the sum of its digits.

Step-by-step explanation:

The number between 20 and 30 that is equal to three times the sum of its digits is 27

The numbers between 20 and 30 are:

21, 22, 23, 24, 25, 26, 27, 28, 29

Add each digit of the numbers and multiply by 3.

So, we have

21 ⇒ 3 * (2 + 1) = 9

22 ⇒ 3 * (2 + 2) = 12

23 ⇒ 3 * (2 + 3) = 15

24 ⇒ 3 * (2 + 4) = 18

25 ⇒ 3 * (2 + 5) = 21

26 ⇒ 3 * (2 + 6) = 24

27 ⇒ 3 * (2 + 7) = 27

28 ⇒ 3 * (2 + 8) = 30

29 ⇒ 3 * (2 + 9) = 33

In the above computation, the true correct term of the sequence is

27 ⇒ 3 * (2 + 7) = 27

Hence, the number is 27

Read more about sequence at:

https://brainly.com/question/6561461

#SPJ6

Answer:

4 squared is 16 so 16 times 3.14= 50.24

Step-by-step explanation:

Answer:

4^2 = 16

16 x 3.14 = 50.24 in2

Step-by-step explanation:

Formula of area of a circle:

π x r^2(radius being squared)

To make it more easier:

3.14 or 22/7 x radius^2

Some keywords:

Radius: Half of your diameter or given radius

Radius Squared: Your radius squared, your radius to the power of 2.

Pi: 3.14 or 22/7 depending on what they tell you to use for pi

Answer:

The residual is of 7 mg.

Step-by-step explanation:

Linear model:

A linear model has the following format:

[tex]y = mx + b[/tex]

In which m is the slope and b is the intercept.

Suppose the model had intercept 37 and slope 25.

This means that [tex]b = 37, m = 25[/tex]

So

[tex]y = 25x + 37[/tex]

9 grams of fiber

This means that [tex]x = 9[/tex]. So

[tex]y = 25(9) + 37 = 262[/tex]

255 milligrams of potassium. What is the residual (in mg)?

Expected subtracted by actual. So

262 - 255 = 7

The residual is of 7 mg.

Answer:

C)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

s + 12>= 100

s>=100-12

s>=88

Answer:

40[tex]\pi[/tex]

or 125.66 rounded

Step-by-step explanation:

area of triangle:

1/2(b*h)

1/2(8*8)

1/2(64)

=32

area of half circle:

[tex]\pi r^{2}[/tex]/2

[tex]\pi r^{2}[/tex]/2

[tex]\pi 4^{2}[/tex]/2

[tex]\pi16[/tex]/2

[tex]\pi8[/tex] or 8[tex]\pi[/tex]

So, 8[tex]\pi[/tex] + 32=40[tex]\pi[/tex]

Answer:

mmm I think you first subtraction

Answer:

x = 10

Step-by-step explanation:

Angles in a triangle add up to 180°. Using this, we can form the following equation:

71° + 50° + 6x - 1 = 180. A simplified version is this: 120° + 6x = 180

Remove 120° from both sides to get:

6x = 60

Divide both sides to get:

x = 10

Hope this helps!

Answer:

60°

Step-by-step explanation:

Given :

DAB= (180 – 3x) °,

mZ B= (6x – 40) °, and

m ZC = (x+20) °.

DAB = mZ B + m ZC ( the exterior angle equal the sum of the two opposite interior angles)

180 - 3x = (6x - 40) + (x + 20)

180 - 3x = 6x - 40 + x + 20

180 - 3x = 6x + x - 40 + 20

180 - 3x = 7x - 20

180 + 20 = 7x + 3x

200 = 10x

x = 200/10

x = 20

Angle B = 6x - 40 = 6(20) - 40 = 120 - 40 = 80

Angle C = x + 20 = 20 + 20 = 40

BAC = 180 - (80 + 40) (SUM OF ANGLES IN A TRIANGLE)

BAC = 180 - 120

BAC = 60°

Answer:

6 inches

Step-by-step explanation:

34

11 + 11 + y + y = 34

22 + 2y = 34

22 - 22 + 2y = 34 - 22

2y = 12

2y ÷ 2 = 12 ÷ 2

y = 6

Answer:

1.2km is 400% of 300m

Step-by-step explanation:

1 km=1000m

So,1.2 km=1000*1.2=1200m

Let 1.2km(or 1200m) be x% of 300 m

By the problem,

300*x/100 = 1200

Or, 3x=1200

Or,x=1200/3=400

1.2km is 400% of 300m