4 years ago

Please help need some help

Mathematics

1 answer:

Lemur [1.5K]4 years ago

3 0

The graph shows exponential growth. as the amount of people infected with the virus decreases, time decreases

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Jana pencil is 8.5cm long.teds pencil is longer.what is the length of Ted's pencil

Mumz [18]

This is not enough info to determine the length of teds pencil

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4 years ago

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<img src="https://tex.z-dn.net/?f=Evaluate%20%20the%20Expression%3Cbr%3E%3Cbr%3E%0A%5Csqrt%7B%20%5Csqrt%5B4%5D%7B8%7D%201%7D%20%

Nezavi [6.7K]

Hello,

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===========================

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3 years ago

Is (8, 8) a solution to the equation y = X?<br> Yes or No ?

Nataly [62]

Answer

YEAH

Explanation

The x value is 8.

The y value is 8.

Well...

8=8

So yes.

7 0

3 years ago

On the last three physics exams a student scored 89, 87, and 92. What score must the student earn on the next exam to have an av

OlgaM077 [116]

Answer:

For the average to be above 90, the marks in the fourth paper should be MORE THAN 92.

Step-by-step explanation:

The score of students in last 3 exams = 89 , 87 and 92

Let us assume the marks scored by the student in last exam = k

The average of marks should be above 90.

Now, $\textrm{The average of total marks} = \frac{\textrm{Sum of all marks obtained in 4 papers}}{\textrm{ 4 papers }}$

Sum of all 4 paper's marks = 89 + 87 + 92 + k = 268 + k

Also, 90 < Average

$\implies 90 < \frac{268 + k}{4}\\ or, 360 < 268 + k\\\implies 360 - 268 < k\\or, k > 92$

Hence,for the average to be above 90, the marks in the fourth paper should be MORE THAN 92.

4 0

4 years ago

solve quadratic by taking square roots. as=a,-a where a and -a the values you found when when solving. Round to nearest tenth. 2

attashe74 [19]

Answer:

8.1

Step-by-step explanation:

2x^2 -9 = 121

+9 +9

2x^2 = 130

/2 /2

x^2 = 65

x= sqrt (65)

x= 8.06225...

x = 8.1

6 0

3 years ago