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2 years ago

If a plant grows 1/4 cm every day for 21 days, what is the total amount of growth?

Mathematics

2 answers:

7nadin3 [17]2 years ago

8 0

5.25 is your answer
1/4x21=5.25

Naddika [18.5K]2 years ago

5 0

I think it’s 5.25 cm but you might want to double check.

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Frank Fitness found a correlation coefficient of -0.74 between hours of strenuous exercise each week and a standard measure of b

Evgen [1.6K]

Answer:

b. strong; negative

Step-by-step explanation:

When a correlation has a value greater than 0.74 or lesser than -0.70, it is classified as a strong correlation.

A negative value for a correlation means a negative (downhill) linear correlation.

Therefore, since the correlation coefficient found by Frank Fitness is -0.74, there is a strong and negative relationship between hours of strenuous exercise and body mass.

8 0

2 years ago

Find the area under the standard normal curve to the right of z=1.9

tresset_1 [31]

To find the area to the right of a positive z-score, begin by reading off the area in the standard normal distribution table. Since the total area under the bell curve is 1, we subtract the area from the table from 1. For example, the area to the left of z = 1.02 is given in the table as .846.

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2 years ago

Given f(x) and g(x) = f(k⋅x), use the graph to determine the value of k.

yan [13]

Answer:

The value of k is 3.

Step-by-step explanation:

The function f(x) passes through the points (0,4) and (-6,-2)

So the equation of the function is $\frac{y-4}{4-(-2)} = \frac{x-0}{0-(-6)}$

⇒ y = x + 4 ....... (1)

Again the function g(x) passes through the points (0,4) and (-2,-2).

Therefore, the equation of g(x) will be $\frac{y-4}{4-(-2)} =\frac{x-0}{0-(-2)}$

⇒ y = 3x + 4

Therefore, g(x) = 3x + 4 = f(3x) {from equation (1).

So, the value of k is 3. (Answer)

3 0

2 years ago

Read 2 more answers

A triangular prism has an equilateral base with each side of the triangle measuring 8.4 centimeters. The height of the prism is

qaws [65]

Answer:

It is 20.4 and 16.8

Step-by-step explanation:

This is similar to 8.4 (because its doubled) and it is similar to 10.2 (because its doubled)

5 0

2 years ago

Read 2 more answers

Han is multiplying by and gets . He says that is not a polynomial because 0.5 is not an integer. What is the error in Han’s thin

Marina86 [1]

Step-by-step explanation:

Han is multiplying10x^4 by 0.5^3 and gets 5x^7 is not a polynomial because 0.5 is not an integer. What is the error in han’s thinking explain

On multiplying 10x⁴ by 0.5x³,

$10x^4\times 0.5x^3=(10\times 0.5)x^{4+3}\\\\=5x^7$

A polynomial is a combination of coefficients and variables. It is made up of one or more monomial. Han says that it is not a polynomial because 0.5 is not an integer. The statement is false. After multiplication we get 5x⁷. It has a variable x and constant 5. Hence, its is a polynomial.

4 0

2 years ago