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3 years ago

Please help me answer this !!!

Mathematics

1 answer:

OLga [1]3 years ago

8 0

Need more information

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If f(z)= sqrt z2+8z , then how much does f(z) increase as z goes from 7 to 8?

Nuetrik [128]

Answer:

Step-by-step explanation:

$f(7)=\sqrt{7^2+8*7}=\sqrt{49+56}=\sqrt{105} \approx 10.247\\f(8)=\sqrt{8^2+8*8}=\sqrt{128}=8\sqrt{2} \approx 11.314\\f(8)-f(7)=11.314-10.247=1.067 \approx 1.07$

3 0

3 years ago

[(2 times 10) divided by 1/3] + 8 =

kondaur [170]

14.6666666667

Step-by-step explanation:

2•10=20/1/3=6.66666666667+8 is that but you can write it like 14.6 with _ that on top

3 0

3 years ago

What should I prepare for international mathematical Olympiad?

attashe74 [19]

Answer:

How Do You Qualify for Math Olympiad?

Step 1: Take the AMC 10 or AMC 12. ...

Step 2: Take the AIME. ...

Step 3: Qualify for and Compete in Math Olympiad. ...

#1: Use Quality Practice Problems. ...

#2: Don't Lounge Around. ...

#3: Focus on Your Weak Areas. ...

#4: Beware of Tiny Mistakes. ...

#5: Schedule Regular Study Time.

hope this helps

5 0

3 years ago

Help please help fast :)

jarptica [38.1K]

Answer:

3846.5 is the answers for the question

Step-by-step explanation:

please mark me as brainlest and follow me

7 0

3 years ago

Read 2 more answers

Where does the graph of y=2x2-x-3 cross as the x-axis?

tiny-mole [99]

This can be determined by finding the x-intercept. In doing so, we let y=0 to find the value of x.

y= 2x^2 -x -3
[0 = 2x^2 -x-3]÷2
0 = x^2 -1/2 x - 3/2

Complete the squares:

1/16 + 3/2 = x^2 - 1/2x + 1/16
25/16 = (x -1/4)^2
sqrt (25/16) = x - 1/4
+/- 5/4 = x - 1/4

Thus,
x = 1/4 + 5/4 = 3/2
x = 1/4 - 5/4 = -1

Thus, the graph crosses at x = 3/2 and x = -1.

6 0

3 years ago