Which expression is a perfect cube?

Answer:

23.10

Step-by-step explanation: Each large necklace is 4.10 There are only 1 largfe necklace he sold so we multiply 4.10 by 1 which is 4.10. A small necklace is 3.80 and he sold 5 of them so we multiply 5 by 3.80. 3.80 times 5 is 19. Then we add the large and small necklace product.

19+ 4.10=23.10

Answer:

23.1

Step-by-step explanation:

(4.10*1)+(3.80*5)

4.10*1=4.10

3.80*5=19

4.10+19=$23.1

the value of p is 3/2, the value of q is 3t, and the value of r is 2/9.with  the sum of the first n terms of the arithmetic series formula we are able to solve it

what is arithmetic series  ?

An arithmetic series is a series of numbers in which each term is obtained by adding a fixed number to the preceding term (known as the common difference). The sum of the terms in an arithmetic series can be found by multiplying the average of the first and last

In the given question,

We know that the first term of the arithmetic series is given by (2t+1) and the common difference is 3. Therefore, the nth term can be written as:

aₙ = a₁ + (n-1)d

(14r - 5) = (2t + 1) + (n-1)3

14r - 5 = 2t + 1 + 3n - 3

14r - 4 = 2t + 3n

7r - 2 = t + (3/2)n --------(1)

Now, we need to find the values of p, q, and r for the sum of the first n terms of the series, which is given by:

Sₙ = (n/2)[2a₁ + (n-1)d]

Sₙ = (n/2)[2(2t+1) + (n-1)3]

Sₙ = n(3n+4t+2)/2

We can simplify this expression by factoring out a 2 from the numerator:

Sₙ = n(3n+4t+2)/2 = (2n/2)(3n+4t+2)/2

Sₙ = (n/2)(3n+4t+2) = (3/2)n² + 2tn + n

Now, we need to write this expression in the form p(qt-1). To do this, we need to factor out (3/2):

Sₙ = (3/2)(n² + 4/3 tₙ + 2/3 n)

Sₙ = (3/2)[n² + 4/3 tₙ + (2/9)(3n)]

Sₙ = (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)n]

Sₙ = (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)n + (4/9)t² - (4/3)tₙ + (4/3)tₙ]

Sₙ= (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)n + (4/3)tₙ]

Sₙ = (3/2)[(n + (2/3)t)² - (4/9)t² + (2/9)(3t*n)]

Now we can see that p=3/2, q=3t, and r=2/9. Therefore, the value of p is 3/2, the value of q is 3t, and the value of r is 2/9.

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Answer:

2.5 days

Step-by-step explanation:

To solve this problem, we can use the concept of work rate. The work rate is defined as the amount of work done per unit of time.

Given:

15 people working 5 hours per day can make 30 units of the product in 10 days.

From this information, we can calculate the work rate of these 15 people:

Work rate = Total units of the product / (Number of people × Number of hours × Number of days)

Work rate = 30 units / (15 people × 5 hours × 10 days)

Work rate = 0.04 units per person per hour

Now, we need to find how many days it will take for 10 people, working 10 hours per day, to make 10 units of the product.

Using the work rate formula:

Number of days = Total units of the product / (Number of people × Number of hours × Work rate)

Number of days = 10 units / (10 people × 10 hours × 0.04 units per person per hour)

Number of days = 2.5 days

Therefore, 10 people, working 10 hours per day, can make 10 units of the product in 2.5 days.

The correct answer is:

2.5 days

Answer:

\(y = kx\)

Step-by-step explanation:

y is directly proportional to x.

\(y \propto x\)

\(y = kx\)

Where k is as the constant of proportionality.

Answer:

y = kx

Step-by-step explanation:

Y is directly proportional to x which means that

=> y ∝ x

=> y = kx

Where k is the constant of proportionality.

Yes, both triangles are similar.

Similar triangles are two triangles that have the same shape, but may differ in size. In other words, their corresponding angles are congruent and their corresponding sides are proportional. This means that if you were to scale one triangle up or down, it would still maintain the same shape as the other triangle.

In ΔABC,

AC² = 36² +15²

AC² = 1521 = 39²

AC = 39

In ΔXYZ,

XY² = 24² +10²

XY² = 676 = 26²

XY = 26

If the ratio of the sides of both triangles are similar So we can say that the both triangles are similar.

AB/XZ = BC/YZ = AC/XY

15/10 = 36/24 = 39/26

3/2 = 3/2 = 3/2

Here we can see that the ratio of the sides of both triangles are similar So we can say that the both triangles are similar.

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Answer:

Add all 4 numbers and if it's 20 then that's the answer.

Answer:

? = 92°

Step-by-step explanation:

the chord- chord angle ? is half the sum of the measures of the arcs intercepted by the angle and its vertical angle, that is

? = \(\frac{1}{2}\) (LM + AK) = \(\frac{1}{2}\) (120 + 64)° = \(\frac{1}{2}\) × 184° = 92°

Answer: 580

Step-by-step explanation:

A fence is usually a rectangle shape in these questions

Perimeter of a rectangle is P = 2l + 2w

P = 2(170) + 2(120) = 580

We would like to solve the equation

Then

The value of the ratio based on the angle illustrated is 1:12.

From the information given, it should be noted that the angle in a circle is 360°. Therefore, the value of theta will be:

= 360° - 330°

= 30°

The equivalent expression based on the angle will be:

= 30/360

= 1/12

= 1:12

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The probability that at least 8 out of the 10 chips work properly is 0.2614, or 26.14%.

Given:

number of chips selected = 10

probability of a chip working= 0.95

The probability of getting exactly k successes in n trials with a success probability p is given by the formula:

\(P(X = k) =\) \({\text} ^nC_k p^k (1 - p)^{(n - k)\)

Now, the probability

P(X ≥ 8) = P(X = 8) + P(X = 9) + P(X = 10)

\(P(X = k) =\) \({\text} ^{10}C_k (0.95)^k (1 - 0.95)^{(10 - k)\)

So, P(X = 8) = \(^{10}C_8 (0.95)^8(1-0.95)^{10-8}\)

                  =  \((45) (0.95)^8 (0.05)^2\)

                 = 0.2753

and, P(X = 9) = \(^{10}C_9 (0.95)^9(1-0.95)^{10-9}\)

                  = \((10) * (0.95)^9 * (0.05)^1\)

                  = 0.3874

P(X = 10) = \(^{10}C_{10} (0.95)^{10}(1-0.95)^{10-10}\)

                  = \((1) * (0.95)^{10} * (0.05)^0\)

                  = 0.5987

Finally, sum up these probabilities to get the desired result:

P(X ≥ 8) = P(X = 8) + P(X = 9) + P(X = 10)

             = 0.2753 + 0.3874 + 0.5987

             = 0.2614

Therefore, the probability is 0.2614.

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Answer:

--------------------------------------

Steps should be self-explanatory. Happy to explain if anything is not clear.

Answer:

Step-by-step explanation:

1) 4v + 7 = 7, for v?

→ 4v + 7 = 7

→ 4v = 7 - 7

→ v = 0/4

→ [ v = 0 ]

2) 3(u + 4) = 27, for u?

→ 3(u + 4) = 27

→ 3u + 12 = 27

→ 3u = 27 - 12

→ u = 15/3

→ [ u = 5 ]

3) -20 = 10(h + 5), for h?

→ -20 = 10(h + 5)

→ 10h + 50 = -20

→ 10h = -20 - 50

→ h = -70/10

→ [ h = -7 ]

4) -10 = (n - 52)/5, for n?

→ -10 = (n - 52)/5

→ n - 52 = -10 × 5

→ n = -50 + 52

→ [ n = 2 ]

5) (48/x) - 3 = 3, for x?

→ (48/x) - 3 = 3

→ 48/x = 3 + 3

→ 6x = 48

→ x = 48/6

→ [ x = 8 ]

6) 8r = 2r + 42, for r?

→ 8r = 2r + 42

→ 8r - 2r = 42

→ r = 42/6

→ [ r = 7 ]

These are required values.

Step-by-step explanation:

c.....................

Answer:

A

Step-by-step explanation:

Both triangles are similar triangles!

Length 21 for the top triangle is similar to length 20 for the bottom triangle

Length 29 for the top is similar to b on the bottom.

Length 20 for the top is similar to a on the bottom.

Use the first ratio: 21/20 to find the proportionality constant.

Divide 29 by that constant to get b

Divide 20 by that constant to get a

You end up with b = 580/21 (= 27.61), and a = 400/21 (= 19.047)

Therefore A is the right answer.

Answer: A

Step-by-step explanation: The dot is a filled-in circle, meaning it has to be A, B, or E. Then, B is saying that the arrow is going left, so that's wrong. E is saying that it is just 6 instead of -6, which leaves us with A.

hope this helps!

please give brainliest!

Okay, here we have this:

Considering the provided image, we are going check why we multiply by 4:

Since the system of equations was solved by elimination, then initially we must make that in both equations there is the same quantity of some of the variables with different sign, so that when adding them the variable is eliminated, then:

We see that in the first equation there is 2y, and that in the second there is 8y, so let's think for a moment about how much we must multiply 2y so that it gives 8y.

You got it right! We must multiply it by 4, but be careful, if you multiply on one side of the equation you must also multiply the other, the we have in the first equation:

Now, let's multiply by 4:

And by distributive law on the right side of the paranteisis we will multiply each term by 4, then we have:

And, that was the reason why it was multiplied by 4.

Answer:

D. a translation right 10 and up 9

Step-by-step explanation:

In order to find the translation, you can take two corresponding points and find the difference in their x's and y's. For example, I'll use N and N':

Step 1) N (-3, -5) and N' (7, 4)

Step 2) difference in y: 4 - (-5) = 9; difference in x: 7 - (-3) = 10

Step 3) a translation right 10 units and up 9 units

1) identify what coordinates points N an N' are

2) find the difference in the points

3) identify whether he shape moved up or down, and left or right. You can see it moved up and right, so you you can tell it moved up 9 since that's the difference in y's and right 10 since that's the difference in x's

Answer:

$2734

Step-by-step explanation:

$98,424 / 36 = $2734

The expression (2.3)⁵ is equivalent to 2.3 x 2.3 x 2.3 x 2.3 x 2.3

Step-by-step explanation:

\(2.3 \times 2.3 \times 2.3 \times 2.3 \times 2.3\) will be equivalent to \(2.3^{5}\).

\(2.3^5\) is a shorted way of saying 2.3 multiplied by itself 5 times.

Solving:

\(2.3 \times 2.3 \times 2.3 \times 2.3 \times 2.3\)

\(5.29 \times 2.3 \times 2.3 \times 2.3\) Equivalent.

\(12.167 \times 2.3 \times 2.3\) Equivalent.

\(27.9841 \times 2.3\) Equivalent.

\(64.36343\) Equivalent.

The rule for construction of Inscribed equilateral triangle

Means if marks are from 1 to 6 then

Or

Now

Here the rest two segments are

Answer:

FB and DB

Step-by-step explanation:

got it right on the test

Answer:

109/150

Step-by-step explanation:

Answer: 109/150

6% = 6/100

6/100 = 18/300 (Multiply Numerator and Denominator by 3)

2/3 = 200/300 (Multiply Numerator and Denominator by 100)

200/300 + 18/300 = 218/300

218/300 = 109/150 (Simplify by Dividing Numerator and Denominator by 2)

Answer:

I got f^-1 (x) = -7x + 21

Step-by-step explanation:

Answer:

the fee for the skates is 4$ ea

Step-by-step explanation:

Answer:

18 tablespoons

Step-by-step explanation:

Divide 30 by 5 and you get 6. Multiply 6 by 3 you get 18 thats the ratio between the two because you have to find the change in amounts, which is 6.

Answer:

A. 22.75 divided by 7 which would equal 3.25 B. the answer would be 3.25 for each cat toy

Step-by-step explanation: