HELP 8TH GRADE MATH. (5^-8) (5^-10)

Answer:

5,004,300

Step-by-step explanation:

Answer:

£140 increased by 5% is £147.00

Answer:

it should be 147.00 , I'm so sorry if I'm wrong!

Answer:

5 units down, two to the left. Therefore, x+-2, y+-5

Step-by-step explanation:

The wavelength of the light is found to be 384.06 nm. The light is coming from the source as sodium bulb.

The distance between two crests or troughs of a light wave is known as the wavelength of light.  

For the stated question-

The wavelength of the light before refraction = 510.8 nm (air).

The refractive index of 1.33.(water).

Thus,

refractive index = wavelength of the light in air/wavelength of the light in water.

μ = λ(air) / λ(water)

1.33 = 510.8 /  λ(water)

λ(water) = 510.8/1.33

λ(water) = 384.06 nm

Thus, the wavelength of the light is found to be 384.06 nm.

The light is coming from the source as sodium bulb (for wavelength of 510.8 nm.)

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Answer:

The answer is 31 pennies

Step-by-step explanation:

we have to find a number that gives a remainder of 1 when divided by both 2, 3 and 5.

The easiest way to do this is to list the factors of 5, add 1 to it, and test them until we find the one with a remainder of 1 by all three divisors. This is done as follows:

1) factor: 5 (+1) = 6

6 ÷ 2 = 3 remainder 0

6 ÷ 3 = 2 remainder 0

since there is a remainder of 0, when divided by 3, 6 is wrong

2) factor; 10 (+1) = 11

11 ÷ 3 = 3 remainder 2 ( 11 is not the correct answer

3) factor : 15 (+1) = 16

16 ÷ 2 = 8 remainder 0 ( 16 is  not the correct answer

4) factor : 20(+1) = 21

21 ÷ 3 = 7 remainder 0 ( 21 is wrong)

5) factor : 25(+1) = 26

26 ÷ 2 = 13 remainder 0 ( 26 is wrong)

6) factor : 30(+1) = 31

31 ÷ 2 = 15 Remainder 1

31 ÷ 3 = 10 Remainder 1

31 ÷ 5 = 6 Remainder 1

since all three divisors give a remainder of 1, the correct answer is 31

Therefore you have 31 pwnnies

Answer:

-b+2>-10

Step-by-step explanation:

Just ask.

Hope this helps! :D

The solution is, the circumference of the circle with radius 14in. is  87.96 inch.

A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length. The perimeter of a circle or an ellipse is called its circumference. Calculating the perimeter has several practical applications.

Perimeter refers to the total outside length of an object,

here, we have,

the radius = r = 14 inch.

we know,

circumference = 2*pi* r

so, calculating we get,

circumference = 87.96 inch.

Hence, The solution is, the circumference of the circle with radius 14in. is  87.96 inch.

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Answer:

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

20% of 30 is 6. You can figure this out because 100 divided by 20 is 5, so you do 30 divided by 5, which is 6

Answer: 32°

Step-by-step explanation:

Complementary angles are the ankea that are equal to 90° when we add them together. This will then be:

9x+22 + 2x+24 = 90

11x + 46 = 90

11x = 90 - 46

11x = 44

x = 4

Angle F = 2x + 24

= 2(4) + 24

= 8 + 24

= 32°

Answer:

\(9x^{2} -33x+30\)

Step-by-step explanation:

The bit pattern 1001001 represents the letter I. The letter represented by the decimal value 73 in ASCII is the uppercase letter "I".

The ASCII value for the letter A is indeed 65 in decimal. To find the letter represented by the bit pattern 1001001, we need to convert this binary value to decimal.

Step 1: Write down the binary value:
1001001

Step 2: Identify the position of each digit (starting from right to left):
2^0, 2^1, 2^2, 2^3, 2^4, 2^5, 2^6

Step 3: Multiply the binary digit by its corresponding position value:
(1*2^6) + (0*2^5) + (0*2^4) + (1*2^3) + (0*2^2) + (0*2^1) + (1*2^0)

Step 4: Calculate the decimal value:
(64) + (0) + (0) + (8) + (0) + (0) + (1) = 73

The decimal value for the binary number 1001001 is 73. Now, we can find the ASCII character that corresponds to this decimal value.

The letter represented by the decimal value 73 in ASCII is the uppercase letter "I".

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Answer:

-1

Step-by-step explanation:

when you change g[×] to g[-2] , 3x+5 change to 3[-2] +5

Answer:

x = \(\frac{2}{3}\)

Step-by-step explanation:

x - 5(x - 1) = x - (2x - 3) ← distribute parenthesis and simplify both sides

x - 5x + 5 = x - 2x + 3

- 4x + 5 = - x + 3 ( add x to both sides )

- 3x + 5 = 3 ( subtract 5 from both sides )

- 3x = - 2 ( divide both sides by - 3 )

x = \(\frac{2}{3}\)

To estimate the integral √(ln(2)) ln(x) dx within an accuracy of 0.01 using upper and lower sums for a uniform partition of the interval [1, e], we need to divide the interval into at least n subintervals. The answer is obtained by finding the minimum value of n that satisfies the given accuracy condition.

We start by determining the interval [1, e], where e is approximately 2.718. The function ln(x)^2 is increasing, meaning that its values increase as x increases. To estimate the integral, we use upper and lower sums with a uniform partition. In this case, the width of each subinterval is (e - 1)/n, where n is the number of subintervals.

To find the minimum value of n that ensures the accuracy condition S - S < 0.01, we need to evaluate the difference between the upper sum (S) and the lower sum (S) for the given partition. The upper sum is the sum of the maximum values of the function within each subinterval, while the lower sum is the sum of the minimum values.

Since ln(x)^2 is increasing, the maximum value of ln(x)^2 within each subinterval occurs at the right endpoint. Therefore, the upper sum can be calculated as the sum of ln(e)^2, ln(e - (e - 1)/n)^2, ln(e - 2(e - 1)/n)^2, and so on, up to ln(e - (n - 1)(e - 1)/n)^2.

Similarly, the minimum value of ln(x)^2 within each subinterval occurs at the left endpoint. Therefore, the lower sum can be calculated as the sum of ln(1)^2, ln(1 + (e - 1)/n)^2, ln(1 + 2(e - 1)/n)^2, and so on, up to ln(1 + (n - 1)(e - 1)/n)^2.

We need to find the minimum value of n such that the difference between the upper sum and the lower sum is less than 0.01. This can be done by iteratively increasing the value of n until the condition is satisfied. Once the minimum value of n is determined, we have the required number of subintervals for the given accuracy.

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Answer:

The maximum number of loafs of brown bread that can be baked from a 12,5kg bag of flour is 27.5.

This is calculated by dividing the weight of the bag of flour by the amount of flour required for one loaf of brown bread.

12.5kg / 450g = 27.5

Answer:

Step-by-step explanation:

If we solve  4x-3y=3, -8x +6y=-6 by substitution or elimination, we will have x=3/4 and y=0

We have the following simultaneous equations:

4x-3y=3.....................(i)

-8x+6y=-6..................(ii)

We solve using substitution:

Make x the subject of formula in equation(i):

4x=3+3y

x=(3+3y)/4

Now, replace the value of x in equation(ii)

-8x+6y=-6, and x=(3+3y)/4

-8((3+3y)/4)+6y=-6

-2(3+3y)+6y=-6

-6-6y+6y=-6

y=0

Now, we replace the value of y=0 in any equations we have to find the corresponding value of x:

4x-3y=3, but y=0

4x-3(0)=3

4x=3

x=3/4

Hence, x=3/4, y=0

The question was incomplete, the complete question is given below:

solve by using substitution or elimination by addition. 4x-3y=3 -8x+6y=-6

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Answer:

34.5

Step-by-step explanation:

5 times x(2.3) = 11.5.

11.5 times 3 is 34.5

you put 2.3 in place of x because x was the unknown value, but now that we know it is 2.33 we plug it in.

The expression is equivalent is 6x/4 + 24y/12

Algebraic expressions are described as expressions composed of variables, terms, factors, constants, and coefficients.

These expressions also consisting of mathematical operations, such as;

Given the expression;

1/4(3x+4y) + 3(1/4x+ 2/3y)

expand the bracket

3x/4 + 4y/4 + 3/4x + 3/3y

collect like terms

3x/4 + 3/4x + 4y/4 + 3/3y

add like terms

3x + 3x/4 +  12y + 12y /12

add the numerators

6x/4 + 24y/12

Hence, the expression is 6x/4 + 24y/12

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This statement is true because both 5 is a whole number and 3 is a positive number, satisfying at least one of the conditions.

Let's go through each statement and answer the questions:

Statement 1: (30 out to the movie).

This is not a proposition because it is not a complete statement. It lacks a clear subject or predicate.

Statement 2: Where did the cat go?

This is not a proposition because it is a question and not a declarative statement.

Statement 3: There is a chipmunk in the backyard.

This is a proposition because it is a complete statement making a claim about the presence of a chipmunk in the backyard.

Statement 4: 15 - 22 = 100.

This is a proposition, but it is a false statement since 15 - 22 is not equal to 100.

Question 2: Assuming p is True and q is False.

We need a specific statement or proposition to evaluate its truth value using the given truth values of p and q.

Question 4: 5 is an odd number and 6 is a prime number.

This statement is false because 6 is not a prime number. It is divisible by 2 and 3, making it composite.

Question 5: 8 is an odd number or 7 is a prime number.

This statement is true because 8 is an odd number, satisfying the first condition.

Question 6: 5 is a whole number or 3 is a positive number.

This statement is true because both 5 is a whole number and 3 is a positive number, satisfying at least one of the conditions.

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Answer:

they are corresponding angles, x=7

Step-by-step explanation:

75=11x-2

77=11x

x=7

Answer:

-17x+10y=3

Step-by-step explanation:

Standard form is:

Ax+By=C

Let's start by simplifying the equation:

4y-5x=3(4x-2y+1)

Distribute the 3:

4y-5x=3(4x)+3(-2y)+3(1)

4y-5x=12x-6y+3

Subtract 12x from both sides

4y-17x=-6y+3

Add 6y to both sides

10y-17x=3

-17x+10y=3

A collection of subsets of a set X is said to partition X if every element of X belongs to exactly one of the subsets in the collection.

A partition of a set X is a collection of non-empty subsets of X.

Every element of X belongs to exactly one of the subsets.

In set notation, we can express this as follows,

Let X be a set, and let C = {A1, A2, ..., An} be a collection of subsets of X.

C is a partition of X if and only if,

The subsets are pairwise disjoint

⇒ Ai ∩ Aj = ∅ for all i ≠ j

The subsets cover the entire set X. Union is equal to X

⋃Ai = X  

In simpler terms,

A partition of a set X is a way of dividing X into non-overlapping subsets.

Such that every element of X belongs to exactly one of the subsets.

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Answer:

m=72

Step-by-step explanation:

Answer:

240

Step-by-step explanation:

m/ (9+ 7 ) = 15

m = 15 * (9 +7)

m = 240

Therefore, the state government should consider investing in new affordable housing initiatives.

a) To compute the 90% confidence interval, we can use the formula:

CI = p ± z*(√(p(1-p))/n)

where p is the sample proportion, z is the z-score corresponding to a 90% confidence level (which is 1.645), and n is the sample size.

Plugging in the values, we get:

CI = 0.517 ± 1.645*(√((0.517)(1-0.517))/4527)

CI = 0.505 to 0.529 (rounded to three decimal places)

b) The 90% confidence interval tells us that we are 90% confident that the true proportion of Californians who considered moving out of the state is between 0.505 and 0.529.

c) Since the confidence interval does not include the value of 0.5, which is the null hypothesis value, we can conclude that there is evidence to suggest that more than 50% of Californians would consider moving out of state due to high cost of housing.

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Answer: 9

Step-by-step explanation:

The second 8 makes the first 8 which is in the ones place round up.  

Answer:96

Step-by-step explanation:24•16/4