Please help me answer these questions quick

Answer:12 to 25 yrs

Step-by-step explanation:

convert 12% to a decimal

Answer:

true

Step-by-step explanation:

the second 7 is in the tenth place and the first 7 is in the hundredth place, which is 1/10 the tenth place

I agree...................

Answer:

Option (2)

Step-by-step explanation:

Equation of a line passing through a point (x', y') and slope 'm' is given by,

y - y' = m(x - x')

From the question in the picture attached,

Slope of the line 'm' = \(-\frac{7}{10}\)

Line passes through a point (80, -71).

Equation of the line will be,

y + 71 = \(-\frac{7}{10}(x-80)\)

y = \(-\frac{7}{10}x+56-71\)

y = \(-\frac{7}{10}x-15\)

Option (2) will be the answer.

Answer:

$6.40

Step-by-step explanation:

You would multiply

1. 3 x $.65 = $1.95

2. $1.45

3. 2 x $1.50 = $3

Total = $6.40

Nora could run 7.5 minutes per mile to qualify for the state cross-country championships. The correct answer is option c.

To qualify for the state cross-country championships, Nora needs to run 4 miles in 30 minutes or less. So, her average rate should be:

average rate = total time / total distance

If she runs at the slowest rate possible to still qualify, then her average rate would be:

average rate = 30 / 4 = 7.5 minutes per mile

Therefore, the correct option is c) 7.5.

If she runs slower than this average rate, then her total time would exceed 30 minutes and she would not qualify.

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Answer:

1/36

Step-by-step explanation:

6^-1 is the same as 1/6,

1/6^2 is 1/36

Answer:

1/36

Step-by-step explanation:

have a good semester

Answer: 1.9%

Step-by-step explanation:

The percent error formula is \(\frac{accepted-experimental}{accepted}\) so input our values also keep in mind when we do percent error we use absolute error which means no negative percentages so 470-479/470= -9/470 or 9/470

as a decimal 9/470 is 0.019 or 1.9% so the answer is 1.9%

Answer:

answer is this =8y-2v-8x

Step-by-step explanation:

Answer:

8y - 2v - 8x

Step-by-step explanation:

-2(-3y + v) + 2(-4x + y)

~Distribute

6y - 2v - 8x + 2y

~Combine like terms

8y - 2v - 8x

Best of Luck!

Answer:

0.5 hours

Explanation:

Given:

Formula:

Solve:

Answer:

Step-by-step explanation:

the slope is : -2

Answer:

  D (0,4)​

Step-by-step explanation:

You want to know an ordered pair that could be added to the given relation such that it remains a function.

A function cannot have any two ordered pairs that have the same x-value. The given relation has x-values {1, 2, 3, 4}, so none of these can be repeated if the relation is to remain a function.

The only choice with a different x-value is ...

  D (0, 4)

__

Additional comment

The set of x-values is the "domain" of the function. It cannot have any repeats. The set of y-values is the "range" of the function. Those values can be repeated.

A function that is "one-to-one" cannot have any repeated range values, either.

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Answer:

AB=17

x=6

Step-by-step explanation:

2AB=XZ(mid-segment theorem)

AB=17

3x-1=17

3x=18

3x=18

x=6

The correct options for the given rational numbers are (a) ii and iv.

P/Q is the format for rational numbers, where p and q are open-ended integers and q 0. The natural numbers, whole numbers, integers, fractions of integers, and decimals are all examples of rational numbers.

To compare the rational numbers, we need to perform the given operations and determine their relative magnitudes:

i. -2.3 - 1.3 = -3.6

ii. -2.3 -1.3 = -3.6

iii. -2.3 > -3.3

iv. -2.3 -3.3 = -5.6

Comparing i and ii, we see that they are equal. Therefore, both options i and ii are true.

Comparing iii, we see that -2.3 is greater than -3.3. Therefore, option iii is true.

Comparing iv, we see that -5.6 is less than both -2.3 and -3.3. Therefore, option iv is false.

So, the correct options are (a) ii and iv.

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Answer:

y=-2/3

x=-20/3

Area and perimeter of figure be: 562.08 m² and 123.68 m

Perimeter is the distance around the outside of a shape. Area measures the space inside a shape.

The figure comprises of a parallelogram and semicircle.

1. For Area

Area of parallelogram = base x height

                                     = 24 x 14

                                     = 336 m²

Area of semicircle = (π x r²)/2

                               = (3.14 * 12 * 12)/2

                              = 226.08 m²

Total Area of the figure = 336+ 226.08 =562.08 m²

2. Perimeter

Perimeter of parallelogram=  2 (a+b)

                                             = 2 (19 +24)

                                            = 86 m

Perimeter of semicircle= π * r

                                      = 3.14 * 12

                                     = 37.68 m

Total Perimeter of the figure= 86 + 37.68 = 123.68 m

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Answer:

43˚

Step-by-step explanation:

If angle 5 is 134˚, then that means angle 2 must be 46.

Inside the triangle, we have three angles. A right angle of 90˚, angle 2 of 46˚ and the unknown angle 1. Since the total sum of the angles in a triangle must be 180, we can solve for angle 1:

180 = 90 + 46 + x

Therefore:

x = 43˚

Angle 1 is 43 degrees.

Hope this helps!

The question is:

This means it is required to find the z-score for 0.05.

To do this, you have to refer to the Area Under Normal Distribution Table.

z-scores are given along the 1st column and 1st row.

The value 0.05 is the significance level. We have to find its corresponding confidence level. To do that, subtract from 0.5:

The z-score for 0.45 is the same as the z-score for 0.05.

Check this or its approximate value in the table:

You'll see for 0.4495.

This falls on 1.6 under .04

Add them together to get 1.6+0.04=1.64

The z-score is 1.64.

C is the most accurate one i guess

Answer:

B. 39

Step-by-step explanation:

45 - 4 + 2 - 7 - 1 + 3 + 1

39

Answer:

B would be the answer because

Step-by-step explanation:

I did the whole thing to the right answer

Hence, the answer is 39 and the only answer on your quiz is B so your answer would be and always well be B (39)

Answer:

3.5

Step-by-step explanation:

7 is hypotenuse, and x is facing the 30 degree angle (bottom left corner) as this is a 30-60-90.

Rules of 30-60-90 say shortest side (30 degree) is x, and hypotenuse is 2x.

7/2 = 3.5

Answer:

The value of x is -2√2 or 2√2.

Step-by-step explanation:

Given that y is inversely proportion to x², y ∝ 1/x². So the formula will be y = k/x² where k is the constant. In order, to find the value of k, you have to substitute the values of x and y into the formula :

\(y = \frac{k}{ {x}^{2} } \)

\(let \: x = 7 \\ let \: y = 3\)

\(3 = \frac{k}{ {7}^{2} } \)

\(3 = \frac{k}{49} \)

\(3 \times 49 = k\)

\(k = 147\)

\(y = \frac{147}{ {x}^{2} } \)

Next, you have to substitute the y value into the equation to find x :

\(let \: y = 18.375\)

\(18.375 = \frac{147}{ {x}^{2} } \)

\(18.375 {x}^{2} = 147\)

\( {x}^{2} = \frac{147}{18.375} \)

\( {x}^{2} = 8\)

\(x = ± \sqrt{8} \)

\(x = - 2 \sqrt{2} \: \: or \: \: 2 \sqrt{2} \)

Step-by-step explanation:

15 / (1/3)  is equal to  15 x 3/1  = 15 x 3 = 45

Answer:

h=3V/πr^2

Step-by-step explanation:

V = 1/3πr^2h

V x 3/πr^2 = 1/3πr^2h x 3/πr^2

3V/πr^2 = h

h= 3V/πr^2

The circumference of the circular pond with a Radius of 2 meters is exactly 4π meters or approximately 12.56636 meters.

The circumference of a circular pond, we can use the formula:

Circumference = 2πr

Where "r" represents the radius of the pond and π (pi) is a mathematical constant approximately equal to 3.14159.

Given that the radius of the pond is 2 meters, we can substitute this value into the formula:

Circumference = 2π(2)

Simplifying the expression:

Circumference = 4π

Therefore, the circumference of the pond is 4π meters.

If we want to calculate an approximate numerical value, we can use the approximation of π as 3.14159:

Circumference ≈ 4 × 3.14159

Circumference ≈ 12.56636 meters

So, the approximate circumference of the pond is approximately 12.56636 meters. the circumference of the circular pond with a radius of 2 meters is exactly 4π meters or approximately 12.56636 meters.

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The transformation can be defined as the introduction of a new set of mathematical coordinates. The correct option is B.

The transformation can be defined as the introduction of a new set of mathematical coordinates that are declared to be different functions of the original coordinates.

Given Figure BCDE, which is transformed using the composition rx-axis ◦ T2,2. Also, the coordinates of point B on the pre-image lies at (3, 4). Therefore, the coordinates of B'' on the final image will be,

rx-axis ◦ T2,2 (3,4)

= rx-axis ( T2,2 (3,4)  )

= rx-axis ( 5,6  )

= (5, -6)

Hence, the correct option is B.

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The rule of the compounded interest is

A is the new amount

P is the initial amount

r is the interest rate in decimal

n is the number of periods per year

t is the number of years

Since the initial amount is $1100, then

P = 1100

Since the interest rate is 5.5%, then

r = 0.055

Since the interest is compounded monthly, then

n = 12

Since the time is 2 years, then

t = 2

Substitute them in the rule above to find A

Lydia's return after 2 years is $1227.60 to the nearest cent

Answer:

x = 8 is the answer

Step-by-step explanation:

2:4 = x : 16

x = 8

Answer: 8

Step-by-step explanation:

given:

2:4=x:16

2×16= 4x

32/4 = x

x=8

Margin of Error ≈ 0.066 (rounded to three decimal places).

To find the margin of error for a poll, we can use the formula:

Margin of Error = Z * (sqrt(p * (1 - p) / n))

Where:

Z is the z-score associated with the desired confidence level (in this case, 99% confidence level).

p is the proportion of respondents who answered positively (33% or 0.33).

n is the sample size (330).

First, let's calculate the z-score for a 99% confidence level. The z-score can be obtained using a standard normal distribution table or a calculator. For a 99% confidence level, the z-score is approximately 2.576.

Now, we can calculate the margin of error:

Margin of Error = 2.576 * (sqrt(0.33 * (1 - 0.33) / 330))

Simplifying the equation:

Margin of Error = 2.576 * (sqrt(0.33 * 0.67 / 330))

Margin of Error ≈ 2.576 * (sqrt(0.2171 / 330))

Margin of Error ≈ 2.576 * (sqrt(0.0006591))

Margin of Error ≈ 2.576 * 0.025677

Margin of Error ≈ 0.066113

Rounding to three decimal places, the margin of error is approximately 0.066.

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Answer:

A

Step-by-step explanation: