Plz Answer fast

Using the order of operations, what should be done first to evaluate (-2)³ + 4 ÷ (-15 + 9)(3) - 4?

A) Add -15 and 9.
B) Divide 4 by -15.
C) Subtract 4 from 3.
D) Multiply 9 by 3.

Answer: $62.82

Step-by-step explanation:

Answer:

The equation a + d(n-1)

Step-by-step explanation:

Where a is the first number in the sequence, d is the common difference and n is the position of a certain number in the series, e.g

1, 2, 3, 4, 5: a = 1, d = 1 (because 2-1=1, 3-2=1, 4-3=1, etc) and n = 1,2,3...

2, 4, 6, 8, 10: a = 2, d = 2 (because 4-2=2, 6-4=2, etc) and n = 1,2,3,4,5...

So for the second sequence, we could try to get the value of n in n = 6 as follows:

a + d(n-1) where a = 2, n = 6 and d = 2

Thus, 2 + 2(6-1) = 2 + 2(5) = 2 + 10 = 12

So the sixth number in the series would be 12

Using the z-distribution, as we are working with a proportion, it is found that samples of 937 should be taken.

A confidence interval of proportions is given by:

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which:

The margin of error is given by:

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In this problem, we have that:

Then, we solve for n to find the minimum sample size.

[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

[tex]0.03 = 1.96\sqrt{\frac{0.675(0.325)}{n}}[/tex]

[tex]0.03\sqrt{n} = 1.96\sqrt{0.675(0.325)}[/tex]

[tex]\sqrt{n} = \frac{1.96\sqrt{0.675(0.325)}}{0.03}[/tex]

[tex](\sqrt{n})^2 = \left(\frac{1.96\sqrt{0.675(0.325)}}{0.03}\right)^2[/tex]

[tex]n = 936.4[/tex]

Rounding up, it is found that samples of 937 should be taken.

More can be learned about the z-distribution at https://brainly.com/question/25890103

Answer:

yes they are

Step-by-step explanation:

(a-b)² = (a-b)×(a-b) = a²-b²

Answer:

No they are not

Step-by-step explanation:

squaring that expression will come out to be a^2-2ab+b^2

this is because you are doing (a-b)(a-b), so you have to multiply each term from the first set of parenthesis by each term in the second set of parenthesis.

a^2-ab-ab+b^2

a^2-2ab+b^2

(a-b)^2≠a^2-b^2

Answer:

3x^2-12x-63, 7x^2-28x-147

Step-by-step explanation:

I think this problem has two answers.

3(x+3)(x-7), 7(x+3)(x-7)

Answer:D

Step-by-step explanation: answer D. 1/4x-1

slope = 1/4 so the coefficent (number attatched to x) is going to be 1/4

y=-1 when x=0

A. =-1/4

B= -1 but the coefficent is not 1/4

C=1

D=-1

D is the correct answer

Answer:

  3.9

Step-by-step explanation:

The right triangle is marked with the sides adjacent and opposite the angle. That suggests the relevant trig relation is ...

  Tan = Opposite/Adjacent

  tan(52°) = 5/x

  x = 5/tan(52°) ≈ 3.9

Answer:

y = abx, with a > 0, b is the growth factor; it corresponds to the constant ratio r in a geometric sequence.Step-by-step explanation:

Answer:

6

Step-by-step explanation:

I hope this helps!

Answer:

1: $3.40     2: $34.00

Step-by-step explanation:

you take 0.34 and multiply it by how many stamps you have. So in this case you have 10 stamps for #1 so you move the decimal over to the right once (since one step is a tenth) and you have $3.40 and for 100 stamps you restart with 0.34 and move the decimal over to the right twice since that would be one-hundredths, and you would get 34. or when you add the units $34.00

Answer:

185

Step-by-step explanation:

Total area is 27 x 10= 270

unshaded are is 17x5= 85

270 - 85 = 185 (total shade area)

Answer:

8 cookies

Step-by-step explanation:

64*1.25 = 80 to find how much cookies noah made

if 90%(0.9) were sold, we will find 80(0.1) to find whats left, which is 8

Answer:

3(-8+1) = 3(-8)+3(1)

Step-by-step explanation:

you multiply the value(s) in front of the parentheses to the values in them.

Answer:

3(-8+1) = 3(-8)+3(1)

Step-by-step explanation:

HOPETHISHOPES!!

Answer:

40

Step-by-step explanation:

The value of a right angle is 90° and <SQR is a fraction of <PQR.

Hence,  <PQS, which is the other fraction of <PQR, equals 90-50 and 90-50 is 40.

Or we can do it like this;

⇒ 180-90-50

⇒ 90 - 50

⇒ 40

Thus, Answer is 40.

[RevyBreeze]

Answer:

1/2

Step-by-step explanation:

I got it wrong then it gave me the right answer of 1/2

The fraction of the sweaters that cost $50 or less is 50% is 1/2.

It is the middle value of the given set of numbers after arranging the given set of numbers in order.

We have,

From the box plot,

Median = $50

Now,

Median = $50

This means,

50% of the clothes are above $50 and 50% of the clothes are below $50.

Now,

The fraction of the sweaters that cost $50 or less is 50%.

So,

= 50/100

= 5/10

= 1/2

Thus,

The fraction of the sweaters that cost $50 or less is 50% is 1/2.

Learn more about median here:

https://brainly.com/question/28060453

#SPJ3

Answer:

61

Step-by-step explanation:

f=98-37=61(exterior angle is equal to the sum of opposite Interior angles)

Answer:

$24

Step-by-step explanation:

1. MULTIPLY: 3 x 56 = 168

2. DIVIDE: 168 / 7 = $24

I hope this helps!

Based on multiplication we have found that 3/7 of $56 is equal to $24.

We are given that the expression 3/7 of $56

To determine 3/7 of $56, we can multiply 3/7 by $56.

Multiply 3/7 by $56:

(3/7) x $56 = (3 x $56) / 7

Calculate the numerator:

3 x $56 = $168

Divide the numerator by the denominator:

$168 / 7 = $24

Therefore, 3/7 of $56 is equal to $24.

Learn more about equations here;

https://brainly.com/question/25180086

#SPJ6

Answer:  x = 0.421053y+5.263158

Step-by-step explanation:

x = 0.421053y+5.263158

Answer:

x=0.042105y+10/19

Step-by-step explanation:

Let's solve for x.

19x−0.8y=10

Step 1: Add 0.8y to both sides.

19x−0.8y+0.8y=10+0.8y

19x=0.8y+10

Step 2: Divide both sides by 19.

19x/19=0.8y+10/19

x=0.042105y+10/19

Answer:

a. addition property of Equality

Answer: D) The linear model shows a strong fit to the data

The actual strength of the relationship is unknown unless we have the actual values of each data point (so we can compute the correlation coefficient r), but the residuals are randomly scattered about both above and below the horizontal axis. This means we have a fairly good linear fit. If all of the points were above the line, or all below the line, or all residuals fit a certain pattern (eg: parabola), then it wouldn't be a good linear fit.

Answer: Maybe Can Help..

2:18

3:27

4:36

5:45

6: 54

7:63

8:72

Step-by-step explanation:

Answer:         D. 150 hours

Step-by-step explanation:

90 gallons = 1 hour

13,500 gallons = x hours

13,500 / 900 = 150

x = 150 hours

The area of a circle that has a radius that is given as r is πr² units², while if the raidus is r, its area would be π units².

Area of circle = πr², where radius is r.

Thus, given that a circle has radius (r) = 1 units

Area of the circle = π(1²) = π units²

If the radius is given as r, the area of the circle remains as πr².

Therefore, the area of a circle that has a radius that is given as r is πr² units², while if the raidus is r, its area would be π units².

Learn more about area of circle on:

https://brainly.com/question/12269818

Answer: 2.44 miles.

Step-by-step explanation:Answer:

2.44 miles

Step-by-step explanation:

Give the following :

Average miles to school = 12 miles per hour

Average Miles from school = 15 miles per hour

Total ride time : ( time to school + time from school) = 22 minutes = (22/60) = 0.3667

Recall:

Speed = distance / Time

Time = distance / speed

Let distance = d

For the scenario described :

d/12 + d/15 = 0.3667

(5d + 4d) / 60 = 0.3667

5d + 4d = 22

9d = 22

d = 22/9

d = 2.44 miles

Work Shown:

C = 2*pi*r

6.28 = 2*3.14*r

6.28 = 6.28r

6.28r = 6.28

r = (6.28)/(6.28)

r = 1

The radius of the circle is 1 yard.

A = pi*r^2

A = 3.14*1^2

A = 3.14

The area is roughly 3.14 square yards.

The area of the trampoline  is mathematically given as

a = 3.14

Question Parameters:

You found one online that has a circumference of 6.28 yards

Generally, the equation for the Circumference   is mathematically given as

C = 2*pi*r

Thererfore

6.28 = 2*3.14*r

r = (6.28)/(6.28)

r = 1

In conclusion, where radius is

[tex]a= pi*r^2[/tex]

a = 3.14*1^2

a = 3.14

Read more about  Arithmetic

https://brainly.com/question/22568180

[tex]cos(A - B) = cos A cos B + sin A sin B[/tex]

In this case, A is [tex]\frac{\pi }{3}[/tex] and B is [tex]\frac{\pi }{5}[/tex], so:

  [tex]cos\frac{\pi}{3} cos\frac{\pi}{5} +sin\frac{\pi }{3} sin\frac{\pi }{5} =cos(\frac{\pi}{3} -\frac{\pi}{5} ) = cos\frac{2\pi}{15}[/tex]

Hope that helps!

Answer:

I think A, but if not I am soooooo sorry

Answer:

wheres the graph.

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

On edg