Mr. Whittaker’s science class uses tide gauges to measure annual variations in water levels at different parts of a river, and then compares those variations to the average annual trend.

Matea recorded that the water level in one part of the river fell 1.05 millimeters per year for 2.48 years.

Which number represents the rate at which the water level fell? -1.05mm/year


Which number should the rate be multiplied by to find the total variation in water level?

2.48 years


that's the correct answer ^
This data will be compared to the average annual trend, which shows the water level rising 1.8 mm/year.

Which number represents the rate at which the water level fell?

Which number should the rate be multiplied by to find the total variation in water level?

Answer:

There are three prime numbers and 3 even numbers on a number cube, so the probability of each is 3/6 = 1/2

Step-by-step explanation:

Probability of rolling a prime number on a standard number cube is  [tex]\frac{1}{2}[/tex] or 0.5.

The theoretical probability is defined as the ratio of the number of favorable outcomes to the number of possible outcomes.

Numbers on a cube are {1, 2, 3, 4, 5, 6}

Total number of favorable outcomes = 6

Number of prime numbers in {1, 2, 3, 4, 5, 6} are {2, 3, 5}.

Number of favorable outcomes = 3

Probability of rolling a prime number on a standard number cube

P = [tex]\frac{Number of favorable outcomes}{Total number of favorable outcomes }[/tex]

P = [tex]\frac{3}{6}[/tex]

P = [tex]\frac{1}{2}[/tex]

Hence, probability of rolling a prime number on a standard number cube is  [tex]\frac{1}{2}[/tex] or 0.5.

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Answer:

add the diagram

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

4 coins 2 out comes each

2 X 2 X 2 X 2 = 16

2^4 = 16

Hope i helped you

Answer:

16

Step-by-step explanation:

Answer:

1/2

Step-by-step explanation:

As they are mutually exclusive P(A and B) = 0 therefore the probability of P(A or B)= P(A) + P(B). Just do 4/5-3/10= 5/10=1/2

The value for P(B) is 1/2.

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

P(A) = 3/10, P(B) = ?, P(A or B) = 4/5.

As they are mutually exclusive P(A and B) = 0

So, P( A or B)

4/5 = P(A) + P(B)

4/5 = 3/10 + P(B)

P(B) = 4/5 - 3/10

P(B) = 5/10

P(B) = 1/2.

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Answer:

C

Step-by-step explanation:

A only gives one answer.(5.972 × 10^24 kg to be precise)

B It is only one thing so it has one mass, not providing a range of answers

C= There are many asteroids so a range of answers are made

Answer:

618.4 unit^2.

Step-by-step explanation:

We have 6 surfaces  ( 3 pairs of equal area) so it is:

2 * 8.6*10 + 2 * 8.6*12 + 2 * 10*12

=  2 * 86 + 24*8.6 + 2 * 120

= 618.4.

Answer:

Option C; 3x - y = -27 and x + 2y = 16

Step-by-step explanation:

1. Let us consider the equation 21x - y = 9. In this case it would be best to keep the equation in this form, in order to find the x and y intercept. Let us first find to y - intercept, for the simplicity ⇒ 21 * ( 0 ) - y = 9 ⇒ y = - 9 when x = 0. Now if we take a look at the first plot of line q, we can see that the x value is -9 rather than the y value, so this equation doesn't match that of line q. This would eliminate the first two options being a possibility.

2. Now let us consider the equation 3x - y = -27. Let us consider the x-intercept in this case. That being said, ⇒ 3x - ( 0 ) = -27 ⇒ 3x = -27 ⇒ x = -9 when y = 0. As we can see, this coordinate matches with one of the coordinates of line q, which might mean that the second equation could match with the equation for line v.

3. To see whether Option 3 is applicable, we must take a look at the 2nd equation x + 2y = 16. Let us calculate the y - intercept here: ( 0 ) + 2y = 16 ⇒ 2y = 16 ⇒ y = 8 when x = 0. Here we can see that this coordinate matches with that of the second coordinate provided as one of the points in line v. That means that ~ Answer: Option C

Answer:

Daniel is charged $900

Step-by-step explanation:

This is because 9 percent of 5000 is 450. Multiply 450x2 and get 900.

Answer:

independent

Step-by-step explanation:

Answer:

(0,5)

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

There are 2 triangles on the sides. On the bottom we have one rectangle, than we have the tilted rectangle, and the straight rectangle.

Answer:

c

Step-by-step explanation:

use multiplication rule.

1/6 for landing a 2 on the cube and 1/3 for landing a 3 on the spinner

Answer:

13.1148770486

.....................,...

Answer:

[tex]6\sqrt{3}[/tex]

Step-by-step explanation:

so we are going to create a factor tree which is the .The factor tree is any two numbers that equal to 108.

next we are going to pull out our pairs.so there are one pair of two's and one pair of threes

[tex]\sqrt[2]{108} =2*3\sqrt{3} =6\sqrt{3}[/tex]

pls mark me brainliest

Answer:

My best guess is 24

Step-by-step explanation:

idk if this is right or not, but the triangle could be a 3 4 5 right triangle.

3 x 2 = 6

4 x 2 = 8

5 x 2 = 10.

6 + 8 + 10 = 24

this is the best answer i got. Don't know if it's going to help...

Answer:

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

Step-by-step explanation:

Answer:i believe it is length times width

Step-by-step explanation:

Answer:

Figure 2 and 3 are correct

Step-by-step explanation:

This question is incomplete, the figures are attached.

Number of cans of beans bought by Emery = 3

Total weight of cans = 2.4 pounds

Therefore the weight of each can = 2.4/4 = 0.8 pounds

The can be represented by the equation:

y = 0.8x,   where x is the number of cans and y represents the total weight

From the graph of figure 1, weight of each can =  20/16 = 1.25 pounds. This is not correct

From the graph of figure 2, weight of each can =  8/10 = 0.8 pounds. This is correct

From the table of figure 3, weight of each can =  4/5 = 0.8 pounds. This is  correct

From the table of figure 4, weight of each can =  5/4 = 1.25 pounds. This is not correct

Answer:

There are a total of possible 1820 results.

Step-by-step explanation:

Since there are two competitions, one for boys and one for girls, and we want all the possible results we will calculate the possible combinations for the boys and multiply them by the possible combinations for the girls. This is shown below:

[tex]Boys = \frac{15!}{3!(15 - 3)!} = \frac{15!}{3!12!} = \frac{15*14*13*12!}{3!12!}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = \frac{15*14*13}{3*2*1}\\Boys = 455[/tex]

[tex]Girls = \frac{4!}{3!*(4 - 3)!}\\Girls = \frac{4*3!}{3!}\\Girls = 4[/tex]

Total number of possible results:

[tex]results = 4*455\\results = 1820[/tex]

Answer:

1.76

Step-by-step explanation:

Answer:

1/76

Step-by-step explanation:

Answer:

y > 10

Step-by-step explanation:

1/2y>5​

Multiply each side by 2

2* 1/2y>5​*2

y > 10

Answer:

y > 10

Step-by-step explanation:

Inequality:

1/2y>5​

We need to isolate the variable y.

Since it is being multiplied by 1/2, we need to multiply by the reciprocal, or opposite, on both sides. The reciprocal of 1/2 is 2. (Check by multiplying both numbers and making sure the product is 1.)

Multiply:

1/2y>5​

x2     x2

y > 10

Therefore, the simplified inequality is y > 10.

Answer:

126m

Step-by-step explanation:

The circumference of the circle would be the amount of fencing required for the circular garden.

Circumference, C = 2πr

π = [tex]\frac{22}{7}[/tex]

C = 2*20*[tex]\frac{22}{7}[/tex]

C = 125.71 m

We need 125.71 meters to fence the garden.

Answer:

Step-by-step explanation:

9.6/5=1.92

1.92= 1 23/25

or 48/25

Answer:

f(7) = -5/2

Step-by-step explanation:

Substituting 7 for x in f(x) = 3/x+2 - √x-3, we get:

f(7) = 3/(7+2) - √(7-3)

Note:  the parentheses are required / mandatory

We get   f(7) = 3/9 - 2, or 1/3 - 2, or  f(7) = -5/2

Answer:

6y people are in the boats

Step-by-step explanation:

Here, we are interested in writing an expression for the total number of people in the boats.

We have 6 people in each of the boats and there are a total of y boats.

The total number of people in the boats is thus y * 6 = 6y people

Answer:

X = 1.09

Step-by-step explanation:

6 to the 1.09th power is 7.04993094301076 so when it is rounded it is 7.

Answer:

the answer is 7

Step-by-step explanation:

log10(6x)=log10(7)

x•log10(6)=log10(7)

x = log10(7)/log10(6)

this works because of

logb(x y) = y ∙ logb(x)

I figured this out from the internet!!

source:TigerAlegbra

Answer:

X=2

Step-by-step explanation:

Answer:

A) 2 units

Step-by-step explanation:

Given;

x² + y² - 4x - 4y + 4 = 0

Consider general circle equation;

(x - h)² + (y - k)² = r²

where;

(h , k ) is the center of the circle

r is the radius of the circle

x² + y² - 4x - 4y + 4 = 0

subtract 4 from both sides of the equation

x² + y² - 4x - 4y  =  - 4

square half of coefficient of x and y, and add them to both sides of the equation

x² +  - 4x + (-2)² +  y² - 4y + (-2)² = - 4 +  (-2)² +  (-2)²

factorize x and y

(x - 2)² + (y - 2)² = - 4 + 4 + 4

(x - 2)² + (y - 2)² = 4

(x - 2)² + (y - 2)² = 2²

Compare this final equation to general equation of a circle

(x - 2)² + (y - 2)² = 2²  

(x - h)² + (y - k)² = r²

r = 2

Thus, the length of a radius of the circle is 2 units

So the right answer is 42.5

look at the attached picture

Hope it will help you

Good luck on your assignment