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Yuri [45]
3 years ago
11

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B

RAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!

Mathematics
1 answer:
Ivanshal [37]3 years ago
5 0

Answer:

Your answer would be B

Step-by-step explanation:

a way to remember it is:

  • a food web= think of a spiders web and how it goes multiple ways

  • a food chain= think of a metal chain, they only link on one another and go only on direction or path

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brittany's first four quiz grades are 78 81 69 and 94 what would her next quiz score need to be in order to have a mean score of
mina [271]
The mean is the sum of all numbers divided by the number of numbers. We can set up an equation:

\sf\dfrac{78+81+69+94+x}{5}=79

Where 'x' is the next quiz score she need. Solve for 'x'. Multiply 5 to both sides:

\sf 78+81+69+94+x=395

Add:

\sf 322+x=395

Subtract 322 to both sides:

\boxed{\sf x=73}

So her next quiz score needs to be 73 in order to have a mean score of 79  on all her quizzes.
7 0
4 years ago
Read 2 more answers
Which graph represents a quadratic function that has one real zero?
Naddika [18.5K]

Answer:

Step-by-step explanation:

Next time, please share the possible answer choices.

A quadratic function with one real zero actually has TWO real, identical zeros.  The vertex of the graph lies on the x-axis (touching it in only one place).

6 0
4 years ago
If
Andreas93 [3]

Answer:  see attachment

<u>Step-by-step explanation:</u>

Given: cos 330 = √3/2

Prove that tan (165) = √3 - 2

4 0
3 years ago
The table shows the weight gain of a kitten over a
stepan [7]

Answer:

The rate of change of the weight of kitten A is greater than the rate of change of the weight of kitten B

Step-by-step explanation:

  • The rate of change of the linear relationship is the slope of the line which represent this relationship
  • The rule of the slope is m = \frac{y2-y1}{x2-x1} , where (x1, y1) and (x2, y2) are 2 points on the line

∵ The table shows the weight gain of kitten A

→ Choose two points from the table to find the slope

∵ Points (0, 3) and (1, 7) are two points in the table

∴ x1 = 0 and y1 = 3

∴ x2 = 1 and y2 = 7

→ Substitute them in the rule of the slope above

∵ m = \frac{7-3}{1-0} = \frac{4}{1} = 4

∵ The slope is the rate of change

∴ The rate of change of the weight of kitten A is 4 oz/week

∵ The graph shows the weight gain of kitten B

→ Choose two points on the line to find the slope

∵ Points (0, 4) and (2, 10) lies on the line

∴ x1 = 0 and y1 = 4

∴ x2 = 2 and y2 = 10

→ Substitute them in the rule of the slope above

∵ m = \frac{10-4}{2-0} = \frac{6}{2} = 3

∵ The slope is the rate of change

∴ The rate of change of the weight of kitten B is 3 oz/week

→ By comparing the two rates

∵ The rate of change of kitten A is 4 oz per week

∵ The rate of change of kitten B is 3 oz per week

∴ The rate of change of the weight of kitten A is greater than

   the rate of change of the weight of kitten B

7 0
3 years ago
Plss help it's urgentt​
juin [17]

Answer:

1. 25

Step-by-step explanation:

First, you need to place the numbers in ascending order, meaning from smallest to largest.

You calculate the range by taking the largest number and subtract the smallest from it, so in this case: 42-17 = 25

Mean (average), just add the numbers up and divide by how many numbers you have

III. Once you find the Mean and you placed them in order from smallest to largest, you can find this answer

Median (middle) - which number is in the middle so after you place them in order which is in the middle if you have an odd number of marks, but since you have 12 marks then take the 2 center numbers, add them up, and divide by 2, in other words, get the mean of the middle numbers and that will give you the median in this problem

Mode, which number appears the most times repeated

7 0
3 years ago
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