Nancy earned $25, $60, and $42 for babysitting three times last week. She spent $48.95 of her babysitting earnings to buy a pair of shoes.

Answer:

1. it takes the ball 2 seconds

2. 144

3. 5 seconds

4. Domain is all real numbers

the range is all real numbers less than or equal to 144

5. The 80 represents the height of the building.

Answer:

Step-by-step explanation:

Use the distance formula to determine the distance between the two points.

Distance = √ ( x 2 − x 1 ) 2 + ( y 2 − y 1 ) 2

Substitute the actual values of the points into the distance formula.

√ ( ( − 1 ) − 2 ) 2 + ( 4 − ( − 9 ) ) 2

Simplify.

√ 178

The result can be shown in multiple forms.

Exact Form:

√ 178

Decimal Form:

13.34166406 …

:) Hope this helped!! :)

Answer: right angles x equals 7 and both m1 and 1 arre 5

Step-by-step explanation:

Answer: CA

Step-by-step explanation:

corresponding angles

90=5x

x=18

m1=90

m2=90

Answer:

3/7 ÷ 2/3 = 9/14

Step-by-step explanation:

When we divide two fractions, such as 3/7 ÷ 2/3, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other.

Answer:

Brett is 13 years old.

Step-by-step explanation:

Both ages are in terms of Julie's age, so let j = Julie's age.

Julie's age = j

Sal's age = 3j + 4

Brett's age = 2j - 5

Sum of ages = 53

j + 3j + 4 + 2j - 5 = 53

6j - 1 = 53

6j = 54

j = 9

Julie is 9 years old.

Brett's age:

2j - 5 = 2(9) - 5 = 18 - 5 = 13

Answer: Brett is 13 years old.

Answer:

The rate of change will be the same for all years.

Step-by-step explanation:

As it is mentioned in the question, that the rate of change is 7%.

And as we know that

= I (1 + R)^T

where

I = Initial amount

R = Rate of growth,

And T = Time.

So in the given case, the rate is 0.07, or 7% while on the other hand the growth RATE remains constant and the growing amount would be increased each year.

Therefore the rate of change would be the same for all the year

The value of x will be 0 and x = 5. The correct option is A.

The x-intercept is the point at which a line intersects the x-axis, and the y-intercept is the point at which the line intersects the y-axis.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the x-intercept(s) of the function is the quantity of 5x² - 25x.

The value of the x-intercept will be calculated as,

5x² - 25x = 0

5x( x -25) = 0

5x = 0 and x - 5 = 0

x = 0  and x = 5

Therefore, the value of x will be 0 and x = 5. The correct option is A.

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Answer:

it's x = 5

Step-by-step explanation:

got it right on the test.

Z is a vector space over F with the operations(v1, w1)+(v2, w2)=(v1 + v2, w1 + w2) and c(v1, w1)=(cv1, cw1) is proved.

A vector is a mathematical object that can be added and multiplied by a number, also known as a scalar.

In this case, we have two vector spaces, V and W, which are sets of vectors that can be added and scaled in a certain way, with the scalars taken from a field F.

=> (v1, w1)+(v2, w2)=(v1 + v2, w1 + w2)

We then define a new set, Z, which consists of ordered pairs of vectors, one from V and one from W. With the operations of adding two vectors element-wise and scaling a vector by a scalar, we can show that Z is also a vector space over F.

=> c(v1, w1)=(cv1, cw1).

To do this, we need to verify that Z satisfies the properties of a vector space, such as closure under addition and scalar multiplication, associativity and commutativity of addition, the existence of an additive identity and inverse, and distributivity of scalar multiplication over vector addition.

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Answer:

(2x - 3) (x + 3)

Step-by-step explanation:

Let's check

(2x - 3) (x + 3)

2x² + 6x - 3x - 9

2x² + 3x - 9

So, (2x - 3) (x + 3) is the correct answer.

The statement that describes Jaden's error is; Jaiden should have added

zeros to each of the shorter decimals to get 2.615, 2.650, 2.700, and 2.623, then he should have compared them using place values.

What is error?

Actions that are inaccurate or incorrect are considered errors. An error is the same as a mistake in some contexts. The word 'errare,' which means 'to stray,' is where the etymology originates from. In statistics, the term "error" describes the discrepancy between the computed value and the correct value.

The place value indicates the multiple of 10 by which the digit is multiplied. The given numbers have the same values in the ones place value, the difference are in the numbers to the right of the decimal point.

The given numbers are;

2.615

2.65

2.7

2.623

The steps to order the numbers from least to greatest;

Add zeros to the shorter decimals such that each number have the same number of digits after the decimal point; 2.615, 2.650, 2.700 2.623

Then

Select the number with the lowest ones; Which gives all the numbers

Then

From the above list, select the number with the lowest tenth, and move them to the left of the list; Which gives the numbers, 2.615, 2.650, 2.623, 2.700

Next

From the above list, select the number with the lowest hundredth, and move them to the left of the list, in increasing order of the hundredth; Which gives the numbers, 2.615, 2.623, 2.650, 2.700

The numbers 2.615, 2.623,2.650, 2.700,  are in the order from least to

greatest.

Hence, Jaiden's error is that Jaiden should have added zeros to each of the shorter decimals to get 2.615, 2.650, 2.700, and 2.623, then he should have compared them using place values.

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Complete question:

Jaiden is ordering 2.615, 2.65, 2.7, and 2.623 from least to greatest. Here are his steps: (1) Compare and order 2.7 and 2.65 because they have the fewest digits. (2) Compare each digit of the numbers 2.615 and 2.623. * The units digits are equal. * The tenths digits are equal. * 1 < 2 in the hundredths place so 2.615 < 2.623. (3) Combine the two lists into one: 2.7, 2.65, 2.615, 2.623. Which statement describes Jaiden’s error?

(1) The numbers are listed from greatest to list

(2) The two numbers with the most digits should have been compared first

(3) Zeros should have been added to the numbers to get, 2.615, 2.065, 2.007, and 2.623. Then the numbers should be compared using place value

(4) He should have added zeros to each of the shorter decimals to get 2.615, 2.650, 2.700, and 2.623, then he should have compared them using place values.

Answer:

plz leave answer choices plz and thank you i tried but im very sorry i wrong question

Step-by-step explanation:

Your search - Mathematics 15 seconds ago +15 pts 2. The sum of the roots of a quadratic equation is -5. If ... - did not match any documents.

Suggestions:

Make sure all words are spelled correctly.

Try different keywords.

Try more general keywords.

Try fewer keywords.

Answer:

The Domain should be (10,+infinity) as x>10

Step-by-step explanation:

Answer:

The circumference of a circle with a latitude of 40 degrees is 251.33

Answer:

Each shirt costed 9 dollars.

Step-by-step explanation:

35+10=45 (initial price)

45/5=9 dollars per shirt

Answer:

4.58

Step-by-step explanation:

i would make sure im correct but i think this is it.

Answer:

2/3

Step-by-step explanation:

Its simple. Ona calculator, if you type in these fractions, you can compare then decimal form values and see which is the biggest:

4/7 = .5714

2/5  = .04

.5/7.0714

2/3 = .66667

Since .6667 is greater than .5714, 2/3 is greater than 4/7

Answer:

B: .57

C: 2/3

Step-by-step explanation:

Divide 4/7 = .57

A: divide 2/5 = 0.4, which is less than 4/7 so we won't include this number as one of the answers

B: .57, which is equal to 4/7

C: divide 2/3 = 0.67, which is greater than 4/7

This question has two answers (B and C), because it is asking which numbers are greater than or equal to.

Answer: 16.7m

Step-by-step explanation:

The tangential and normal components of the acceleration when s = 10 m is 40 m/s^2 and 8 m/s^2 respectively.

In the given question, a car is travelling along the road with a speed of 2s m/s, where s is in meters.

We have to determine the tangential and normal components of the acceleration when s = 10 m.

Speed (v) = 2s  

Motion is circular so, Radius of circle = 50m

Tangential acceleration = dv/dt

Tangential acceleration = d(2s) / dt

Tangential acceleration = 2(ds)/dt

Tangential acceleration = 2v

Tangential acceleration = 2(2s)

Tangential Acceleration = 4s

As given s = 10 m

Tangential acceleration = 4 x 10

Tangential acceleration  = 40 m/s^2

Normal acceleration = v^2/ r

Normal acceleration = 4s^2/r

Normal acceleration = {4 x 10^2}/50

Normal acceleration = {4 x 100}/50

Normal acceleration = 400/50

Normal acceleration = 8 m/s^2

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The complete question is:

A car is travelling along the road with a speed of 2s m/s, where s is in meters. Determine the tangential and normal components of the acceleration when s = 10 m. Treat the car as a particle

The exponential function represented on the graph is f(x) = (1/3)\(.^x\). The correct option is B.

The mathematical expression f(x)=exp or e^x denotes the exponential function. The word, unless specifically stated differently, normally refers to the positive-valued function of a real variable, though it can be extended to complex numbers or adapted to other mathematical objects like matrices or Lie algebras.

A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.

The given graph is representing the exponential function f(x) = (1/3)\(.^x\) The graph is attached with the answer below. The graph is showing the inverse fraction of ( 1/3).

Therefore, the exponential function represented on the graph is f(x) = (1/3)\(.^x\). The correct option is B.

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This implies that the number with 0s is a multiple of 1999 too.

The statement "|a – b| is a multiple of 1999" means that the absolute value of the difference between two integers 'a' and 'b' is divisible by 1999. In other words, if we subtract 'b' from 'a', the result is a multiple of 1999. For example, if 'a' is 6000 and 'b' is 4002, then |a-b| is equal to |6000-4002| = 1998, which is divisible by 1999.

The statement "this is a number that ends with 0s: 11…100…0" refers to a number that has some 1s followed by some 0s. For example, 1100, 111000, and 11110000 are all numbers that end with 0s. The number given in the statement has 'n' 1s followed by 'm' 0s, where 'n' and 'm' are positive integers.

Now, if we consider the number without the 0s, i.e., the number that has only 'n' 1s, then we can represent it as (10^n - 1)/9. For example, if 'n' is 3, then the number without 0s is (10^3 - 1)/9 = 111. Since 10 and 1999 have no common dividers other than 1, we can say that (10^n - 1) is divisible by 1999 if and only if 10^n - 1, when divided by 1999, leaves a remainder of 0. In other words, 10^n is congruent to 1 (mod 1999).

Now, if we consider the original number that ends with 0s, we can write it as (10^n - 1)/9 * 10^m. Since 10^n - 1 is divisible by 1999, we can say that the product (10^n - 1)/9 * 10^m is also divisible by 1999. Therefore, the number that ends with 0s is a multiple of 1999.

In summary, if |a - b| is a multiple of 1999 and we construct a number that ends with 0s using the formula (10^n - 1)/9 * 10^m, then the resulting number without 0s (i.e., (10^n - 1)/9) is also divisible by 1999. This implies that the number with 0s is a multiple of 1999 too.

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Basically everything but choice C

==========================================

Explanation:

sqrt is shorthand for square root

sqrt(4) = 2 = 2/1 showing that sqrt(4) is rational. We can write it as a fraction of two whole numbers, where 0 is not in the denominator.

-------

In contrast, we cannot write sqrt(2), sqrt(3), or sqrt(5) as a fraction of two whole numbers. Using your calculator, note how

sqrt(2) = 1.4142135623731

sqrt(3) = 1.73205080756888

sqrt(5) = 2.23606797749979

all of those decimal expansions go on forever without any pattern, which is a sign that those numbers are irrational. If they were rational, then a pattern would repeat at some point or the decimals would terminate at some point.

Answer:

a, b, d are irrational

Step-by-step explanation:

root 2 = 0.414.....

root 3 = 0.732.....

root 5 = 2.236.....

Hope this helps.....

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a) The median would be larger than the mean because the life expectancy of some countries may be much lower than the others, thus affecting the mean.

b) The median should be reported as it is a better measure of central tendency, as it is not affected by outliers.

a) The median is expected to be larger than the mean because the life expectancy of some countries may be much lower than the others, thus affecting the mean. The mean is calculated by adding all the values together and dividing by the number of values, and if there are any values that are much lower or higher than the rest, this will affect the mean significantly. The median, however, is the midpoint of the values, so outliers have less of an influence on it.

b) The median should be reported as it is a better measure of central tendency, as it is not affected by outliers. The median is the midpoint of the values, which means that if there are any values that are much lower or higher than the rest, it will not affect the median as much as it does the mean. This makes the median more accurate in representing the life expectancy of countries, as it is not skewed by outliers. Furthermore, the median is generally more reliable when dealing with skewed distributions, which is often the case with life expectancy data.

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Answer:

Does 0 have a reciprocal?

Step-by-step explanation:

No. There is no number, according to the definition of a reciprocal, that when multiplied with 0 will produce 1.

Answer:

It is likely that Tom did not expand brackets fully or forgot to subtract and add from both sides.

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

arc AM = 114°

Step-by-step explanation:

the measure of a tangent- chord angle is half the measure of its intercepted arc, that is

∠ MAC = \(\frac{1}{2}\) (AM )

57° = \(\frac{1}{2}\) AM ( multiply both sides by 2 to clear the fraction )

114° = AM