Marcy wants to buy a new dress that costs $56.77. She has been babysitting to earn the
money to buy the dress. She makes $5.50 per hour babysitting and she babysat a total of 9.5
hours last week. How much more money does Marcy need?

Answer:

Step-by-step explanation:

AC= E

AC= CD

BC= EE

Please write the problems I cant see them well

Answer: 1

Step-by-step explanation:

Let's look at two points on this line (0, 1), and (1, 2)

Using the slope formula (\(\frac{(y_2-y_1)}{(x_2-x_1)}\))

\(\frac{(2-1)}{(1-0)} =\frac{1}{1}=1\)

Hope it helps :)

Answer:

bro be more specific plssssaass

Answer:

yards: 14080

miles: 8

that's basically it

Answer:

14080 yards

Step-by-step explanation:

A yard is 1/1760 mile, meaning 1 mile = 1760 yards.

5 miles + 3 miles = 8 miles

8 miles to yards = ?

8 x 1760 = 14080.

The Sims family drove 14.08k yds or 14080 yards.

Answer:

900

Step-by-step explanation:

its easy

Answer:

The value of a₅ is 1875.

Step-by-step explanation:

Given:

a₁ = 3

aₙ = 5aₙ₋₁

To find the value of a₅, we can apply the recursive formula to compute each term successively:

Step 1: Compute a₂

a₂ = 5a₁ = 5(3) = 15

Step 2: Compute a₃

a₃ = 5a₂ = 5(15) = 75

Step 3: Compute a₄

a₄ = 5a₃ = 5(75) = 375

Step 4: Compute a₅

a₅ = 5a₄ = 5(375) = 1875

Answer:

6.07

Step-by-step explanation:

Answer:

all but the fourth option

Step-by-step explanation:

pre-calc edg 2020

Answer:

this is what mine looked like

Step-by-step explanation:

Keep in mind that without the population standard deviation, it is impossible to provide an exact sample size. However, this formula will give you a good starting point.

To find the sample size needed for a 99.5% confidence interval with a margin of error of 1.5, we can use the formula:

n = (Z * σ / E)^2

where n is the sample size, Z is the Z-score corresponding to the desired confidence level, σ is the population standard deviation, and E is the margin of error.

For a 99.5% confidence interval, the Z-score is approximately 2.807 (from a standard normal distribution table). Since we do not have the population standard deviation (σ), we will need to estimate it using a sample standard deviation or use a conservative approach by assuming the maximum possible value. For now, let's assume we have an estimated standard deviation.

n = (2.807 * σ / 1.5)^2

Solve for n by plugging in the estimated standard deviation (σ) and then round up to the nearest whole number, as you cannot have a fraction of a sample.
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The value of 3x₁ + x₂ is 7/2

A quadratic equation is an equation of the form ax² + bx + c = 0, where x is the variable and a, b, and c are constants.

5/x - 2/x² = 2

The LCM of x and x² is x². So we have:

(5x - 2)/x² = 2

Cross multiply:

5x - 2 = 2x²

2x² - 5x + 2 = 0

Factorize:

(2x - 1)(x - 2) = 0

2x - 1 = 0 or x - 2 = 0

2x  = 1 or x = 2

x  = 1/2 or x = 2

Thus, x₁ = 1/2 and x₂ = 2

Therefore, the value of 3x₁ + x₂ will be:

3x₁ + x₂ = 3×(1/2) + 2 = 3/2 + 2 = 7/2

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The zero of the function g(x) is x = -4

A function is a relationship between inputs where each input is related to exactly one output. A function is generally denoted by f(x) where x is the input.

It should be noted that based on the information, we want to find the value of x. This will be illustrated thus:

To find the zeros of a function g(x), we solve the equation g(x) = 0 for x. That is:

g(x) = (x + 4) / (x - 6)

0 = (x + 4) / (x - 6)

0(x - 6) = (x + 4)

0 = (x + 4)

x + 4 = 0

x = -4

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Answer:

  2√2

Step-by-step explanation:

  \(g(h(10))=g(2\cdot10-8)=g(12)\\\\g(12)=\sqrt{12-4}=\sqrt{8}=2\sqrt{2}\\\\\boxed{g(h(10))=2\sqrt{2}}\)

Answer:

55

Step-by-step explanation:

Answer:

dL/dt = 110,98 m/s

Step-by-step explanation:

Let´s call A the point where a person is, the intersection (o) and the car from the north form a right triangle. According to Pythagoras Theorem

L²  =  x²  +  y²      where L is the distance between the person and the car ( x is constant since the person does not move)

Tacking derivatives with respect to time we have:

2*L*dL/dt  =   2*y*dy/dt     (1)

x  =  15 mts         y  = 888    and  dy/dt  = 111 m/s

L² =  x²  +  y²

L  = √ (15)² + (888)²      ⇒     L = √ 225  + 788544

L = 888,13 m

2*L* dL/dt  = 2* (888)*111

dL/dt  = (888)*111/888,13

dL/dt  =0,99*111

dL/dt = 110,98 m/s

Answer:

C, definitely two sides are different in the triangle.

A, it looks as if the bottom is a right triangle if you look at it in a different way.

The polygons that would be used in a net isosceles triangle & right triangle

A pyramid is a structure whose outer surfaces are triangular and converge to a single step at the top,

As, we need a triangular pyramid whose base has all the three sides equal in length.

We can have a net in the form of isosceles triangle whose two are equal

i.e., two sides are different in the triangle.

and also, bottom with the right angle

i.e.,  the bottom is a right triangle if you look at it in a different way.

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Answer:

  9, 9√3

Step-by-step explanation:

The ratios of sides in a 30°-60°-90° triangle are ...

  1 : √3 : 2

The shortest is half the longest. If the longest is 18, the others are 9, 9√3.

Answer:

zxzxc

Step-by-step explanation:

zxczxc

Answer:   10

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Answer:

Step-by-step explanation:

15% of 20 is 3

The area between the two functions is 0

The functions are given as:

f₁(x)= 1

f₂(x) = |x - 2|

x ∈ [0, 4]

The area between the functions is

A = ∫[f₂(x) - f₁(x) ] dx

The above integral becomes

A = ∫|x - 2| - 1 dx (0 to 4)

When the above is integrated, we have:

A = [(|x - 2|(x - 2))/2 - x] (0 to 4)

Expand the above integral

A = [(|4 - 2|(4 - 2))/2 - 4] - [(|0 - 2|(0 - 2))/2 - 0]

This gives

A = [2 - 4] - [-2- 0]

Evaluate the expression

A = 0

Hence, the area between the two functions is 0

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Answer:

x=4 and y=2

Step-by-step explanation:

I'm not 100% sure but I substituted different numbers into the equation:

If x=4 and y=2 then 4+2=6 and 3x2=6 so it would be 6=6

Another option is x=7 and y=3 then 7+2=9 and 3x3=9 so it would be 9=9

I'm more confident with x=4 and y=2 because of the small size of the triangle.

I hope this helps! Good luck! :)

The property illustrated ca be classified as the transitive property of equality

Equation are expressions separated by an equal sign. For transitive property, if two system of equation are equal, and the first is equal to the second, then they 2nd is equal to the third, they are transitive.

According to the transitive property of equality, two quantities that are equal to the same thing are equal to each other. For instance If x = 10 and 10 = y, then x = y.

Given that g = 3h and 3h = 16, then g = 16, then the property illustrated ca be classified as the transitive property of equality

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Answer:

The answer is 28.8, When finding the Volume of a shape, you multiply all numbers.

Answer:

Step-by-step explanation:

The area of a parallelogram of width W and length L is A = W*L.

The area of a trapezoid of width W and different side lengths L1 and L2 is

A = W(L1 + L2)/2.  

To find the area of the trapezoid, take the average of the lengths L1 and L2 of the two parallel sides and call the result L.  Then apply the formula for the area of a parallelogram, given above).

Answer:\(8.75\ m^2\)

Step-by-step explanation:

Given

Area of circle is \(A=45\ m^2\)

Arc measure \(\theta =70^{\circ}\)

and area of sector is given by

\(\Rightarrow \frac{\theta }{360^{\circ}}\times \text{Area of circle}\)

\(\Rightarrow \frac{70}{360}\times 45\)

\(\Rightarrow 0.194\times 45\)

\(\Rightarrow 8.75\ m^2\)

So, area of sector is \(8.75\ m^2\)

The cost of the carpet for the room is $366.40625.

Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure. The standard unit of area is square units which is generally represented as square inches, square feet, etc.

Given that, Chris is laying carpet in a room that is \(12\frac{1}{2}\) = 12.5 feet by \(8\frac{3}{8}\) = 8.375 feet.

We know that, area of a rectangle = Length × Width

= 12.5×8.375

= 104.6875 square feet

The carpet costs 3.50 per square foot.

Cost = 104.6875×3.50

= $366.40625

Therefore, the cost is $366.40625.

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The rational function that represents the situation is \(y = 19.8x\)

The rational function is a linear function that passes through the following points

So, we start by calculating the slope (m) of the function

\(m = \frac{y_2 - y_1}{x_2 -x_1}\)

This gives:

\(m = \frac{19.8 - 0}{1 - 0}\)

Simplify

\(m = \frac{19.8 }{1}\)

\(m = 19.8\)

The equation is then calculated as:

\(y = m(x -x_1) + y_1\)

This gives

\(y = 19.8(x -0) + 0\)

Simplify

\(y = 19.8x\)

Hence, the rational function that represents the situation is \(y = 19.8x\)

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Question: Which rational function represents this situation?

Answer: The rational number that represents the situation is D: y= 19,800/x.

This answer is correct! I did this on Edge.

Answer:

28. B

29. D

30. A

Step-by-step explanation:

28.

2 5/8 yd × 5/6 yd =

= 21/8 × 5/6 yd²

= 105/48 yd²

= 35/16 yd²

= 2 3/16 yd²

Answer: B

29.

2641 becomes 6241.

In 6241, the 6 is in the thousands place.

6 × 1000 = 6000

Answer: D

30.

90 + 7 × (7 - 1) =

Use the correct order of operations.

= 90 + 7 × 6

= 90 + 42

= 132

Answer: A

In the right-angled triangle ABC, CA is 4.2cm.

What is a right-angled triangle? How to identify it?

Any angle that is a right angle or has one of its interior angles equal to 90 degrees is considered to be in a right-angled triangle. This triangle is also known as the right triangle or the 90-degree triangle for this reason. Trigonometry heavily utilizes the right triangle. In this article, let's learn more about this triangle.

By applying Pythagoras' theorem, one can determine whether a triangle has a right angle. If the squares of the triangle's two shorter sides equal the square of the hypotenuse, a right angle is present.

Solution explained:

A/Q, we have

BC = 9.2cm and m∠A = 63°

Using the tangent ratio formula (ratio of a side that is not the hypotenuse to a side that is near to an angle), we get

\(tanA = \frac{BC}{CA}\)

tan 63° = \(\frac{9.2}{CA}\)

CA = \(\frac{9.2}{1.96}\)     (tan 63° = 1.96)

CA = 4.687 ≅ 4.7cm

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Answer:

240miles/hour

Step-by-step explanation:

Answer:

x = 3

Step-by-step explanation: