Hello can someone help me with this, please helping with 1 would help me so much

The volume of the solid whose base is the semicircle y = √(16 - x²), where -4 < x < 4 and whose cross section perpendicular axis are squares is 256/3 unit³

To obtain the volume of a 3D shape, the cross-section area is discovered and then integrated across a predetermined limit. This technique is known as the cross-sectional method of volume fining. The area of the square base is determined in the given problem, and it is then integrated to determine the overall volume.

To find the volume we will first find the cross-sectional area and then integrate it with respect to x from -4 to 4.

Thus the volume is given as follows:

y = √(16 - x²)

V = ₋₄∫⁴ (√(16 - x²))² dx

V = ₋₄∫⁴ (16 - x²) dx

V = [16x - x³/3]₋₄⁴

V = (64 - 64/3 + 64 -64/3)

V = 256/3 unit³

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Answer:0.67

Step-by-step explanation:

Answer:

Signum function

Step-by-step explanation:

Hope this helps uuuu

Answer: The expression |x + 4| when x ≤ -9 can be rewritten without using absolute value symbols as -(x + 4).

Step-by-step explanation:

Answer:

domain is like the membrane

Step-by-step explanation:

domain

Answer:

60

Step-by-step explanation:

\(a+b+c=180\\\frac{b+c}{2}=a \rightarrow b+c=2a\\\\a+2a=180\\3a=180\\a=60\)

Therefore, the value of a is 60 degrees

Answer:

there you go . i couldnt write it so i took a screenshot of it . mark me brainliest plz

Answer:

1/2

Step-by-step explanation:

The value of the given expression is 1 / √3.

The branch of mathematics sets up a relationship between the sides and the angles of the right-angle triangle termed trigonometry.

The given values are  cos60=sin30=1/2 and cos30=sin60=√3/2.

Divide sin30 and cos30,

\(\dfrac{sin30}{cos30}=tan30 = \dfrac{\dfrac{1}{2}}{\dfrac{2}{\sqrt{3}}}=\dfrac{1}{\sqrt{3}}\)

Divide sin60 and cos60.

\(\dfrac{sin60}{cos60}=tan60 = \dfrac{\dfrac{2}{\sqrt{3}}}{\dfrac{1}{2}}= \sqrt3\)

The value of the expression is.

\(\dfrac{ tan60-1}{1-tan30}=\dfrac{\sqrt{3}-1}{\sqrt{3}-1}}\times \dfrac{1}{\sqrt{3}}=\dfrac{1}{\sqrt{3}}\)

Therefore, the value of the given expression is 1 / √3.

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9514 1404 393

Answer:

  (1, -3)

Step-by-step explanation:

The point P that partitions AB into the ratio m:n is ...

  P = (mB +nA)/(m+n)

The point you're looking for is ...

  P = (3(3, -9) +2(-2, 6))/(3+2) = (9-4, -27+12)/5 = (5, -15)/5

  P = (1, -3)

The amount Greg needed more to balance the cost of drum set if it cost $250 and he has $123 is $127

Total cost = Available amount + needed amount

250 = 123 + m

subtract 123 from both sides

250 - 123 = m

127 = m

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Answer:

y intercept = (0, 2.5)

x intercept = (3.5,0)

Step-by-step explanation:

Answer: C my bad just took the test it's C :)

Step-by-step explanation:

The part of the scientific process that includes the use of scientific methods is observation. So, option C is correct.

The scientific method is a method of research that includes systematic steps such as observing the problem and knowledge, forming a hypothesis, testing the hypothesis, and analyzing the test result.

So, the question should find possible solutions to solve a particular problem.

Thus, the part of the scientific process includes the use of scientific methods is observation.

So, the option C is correct.

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Answer:

D. The statement is false. Double blinding is used to decrease the placebo effect.

Step-by-step explanation:

In a double blind study, neither researchers nor the participants know which group is receiving the placebo. If the researchers do not know which group took the medication, they cannot influence the behavior of this group, knowingly or nor, by suggesting how they should behave.

Therefore, a​ double-blind experiment is used to decrease the placebo effect.

 I probably get my first credit card from the same institution that has my checking and/or savings account because that is the right thing to do.

The credit card is a type of card that could be used to pay for utilities. The credit card is a thin plastic card that is issued by a person's financial institution and is recognized for financial transaction.

However, the credit car should be used with caution so that a person do not accumulate a lot of debt on the credit card that could lead to the bankruptcy of the individual that is using the cards in question.

Now,  I probably get my first credit card from the same institution that has my checking and/or savings account because that is the right thing to do.

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The solution of the system of linear equations, is (1.167, 3.667).

Given that the system of linear equations, y = -2x+6 and y = 4x - 1, we need to find the solution for the same,

y = -2x+6............(i)

y = 4x - 1.......(ii)

Equating the equations since the LHS is same,

-2x+6 = 4x-1

6x = 7

x = 1.167

Put x = 1.16 to find the value of y,

y = 4(1.16)-1

y = 4.66-1

y = 3.667

Therefore, the solution of the system of linear equations, is (1.167, 3.667).

You can also find the solution using the graphical method,

Plot the equations in the graph, the point of the intersection of both the lines will be the solution of the system of linear equations, [attached]

Hence, the solution of the system of linear equations, is (1.167, 3.667).

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Ling is now 17 feet off the ground if she is climbing a rock wall.

Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.

The operator that performs the arithmetic operation is called the arithmetic operator.

She begins by climbing 12 feet. Then she descends 3 feet to take a different path. She climbs another 8 feet from there.

Ling started 12 feet off the ground and climbed down 3 feet, so she is now 12 - 3 = 9 feet off the ground.

Then she climbed up another 8 feet, so she is now 9 + 8 = 17 feet off the ground.

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Answer:

(x,y) → (x+ 6,y - 3)

Step-by-step explanation:

I think you posted this question earlier as well? Basically, x moves left and right, while y moves down and up. Therefore, if you wanted to move 3 units down, you would use y-3.

Answer:

The length of the rectangle is 3 feet.

Step-by-step explanation:

Area = l × w

So, for this problem, you would divide 3.6 by 1.2 in order to get the length of the rectangle.

3.6 / 1.2 = 3

So, the length of the rectangle is 3 feet.

Answer: The length is 3 feet.

Step-by-step explanation:

The area of a rectangle is the length times the width and since the area is given and the width is give  just divide the area by the width to find the length.

3.6/ 1.2 = 3

The required angle is 24.5°.

Given is a right triangle with perpendicular side 16 and the base = 35 we need to find an acute angle in it,

To find the acute angle in a right triangle given the lengths of the perpendicular side and the base, you can use the tangent function.

The tangent of an angle is defined as the ratio of the length of the perpendicular side to the length of the base side.

In this case, the perpendicular side is 16 and the base is 35.

Let's denote the acute angle as θ.

Using the tangent function, we can set up the equation:

tan(θ) = perpendicular side / base

tan(θ) = 16 / 35

To find the value of θ, we can take the inverse tangent of both sides:

θ = tan⁻¹(16 / 35)

θ = 24.5°

Hence the required angle is 24.5°.

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Answer:

47

Step-by-step explanation:

Each new term is the previous term +2.

1st term = 1

5th term = 9

10th term = 19

15th term = 29

20th term = 39

25th term = 49 - 2 = 47 = 24th term

The answer to that is 5, award me brainliest please!

Answer:

134.77

Step-by-step explanation:

Round 134.76821 to the nearest hundredth

by placing each number in reference to what they represent.

1 - hundreds

3 - Tens

4 - units

.7=Tenth

.76=Hundredth

.768=Thousandth

.7682=Ten Thousandth

.76821= Hundred Thousandth

Nearest hundredth will be

134.[76]821

since 2,1 are both round down numbers they will produce approximately 0

since 8 is a round off number it will produce approximately 10

134.77000

or 134.77

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The value of m that satisfies the equation -3 + m = 9 is m = 12.

To solve the equation -3 + m = 9, we can isolate the variable m by moving the constant term -3 to the other side of the equation.

-3 + m = 9

To move -3 to the other side, we can add 3 to both sides of the equation:

-3 + 3 + m = 9 + 3

Simplifying, we have:

m = 12

Therefore, the value of m that satisfies the equation -3 + m = 9 is m = 12.

None of the provided answer options (A, B, C, D) match the correct solution.

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Answer:

x=36 degrees

Step-by-step explanation:

Remember that all angles of a triangle must add up to 180 degrees due to the Angle Addition Postulate. So let's plug it in! x+65+79=180

Now you solve, x=180-79-65

x=36!

x=36 degrees

Answer:

Option B

Step-by-step explanation:

All interior angles of a triangle add up to 180°.

\(79+65+x=180\\144+x=180 \\144-144+x=180-144\\\boxed {x=36}\)

The missing angle is 36°.

Option B should be your correct answer.

The Division of the sum of (7/8), (15/4), and (1/12) by their multiplication is (2712/168).

To find the division of the sum of (7/8), (15/4), and (1/12) by their multiplication, we first need to calculate the sum and multiplication of the given fractions.

The sum of the fractions is:

(7/8) + (15/4) + (1/12)

To add these fractions, we need a common denominator. The least common multiple of 8, 4, and 12 is 24. Let's convert each fraction to have a denominator of 24:

(7/8) = (21/24)

(15/4) = (90/24)

(1/12) = (2/24)

Now we can add the fractions:

(21/24) + (90/24) + (2/24) = (113/24)

The multiplication of the fractions is:

(7/8) * (15/4) * (1/12)

To multiply fractions, we multiply the numerators and denominators:

(7*15*1) / (8*4*12) = (7/96)

Now we can divide the sum of the fractions by their multiplication:

(113/24) / (7/96)

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction:

(113/24) * (96/7) = (2712/168)

Therefore, the division of the sum of (7/8), (15/4), and (1/12) by their multiplication is (2712/168).

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Answer:

e-5=2f

take '-5' to the other side where '2f' is

e=2f+5

Answer:

12 meters

Step-by-step explanation:

You have to use the inverse of the pythagorean theorem to do this so you do square root of (20x20-16x16) which is 12

Answer: D

Step-by-step explanation: