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2 years ago

Which of the following are in scientific notation?

Mathematics

2 answers:

horsena [70]2 years ago

8 0

Hi and it’s the 3rd one

ella [17]2 years ago

6 0

Answer:

5.23x10^-2, 8.7x10^-2

Step-by-step explanation:

Scientific notation is basically any number(eg121) thats divided by the lowest power of 10 before it turns into 0.something(in this case, 1.21), times the power of 10 u need to dived, in this case 10^2.

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Which fraction has a repeating decimal as decimal expansion

Natasha_Volkova [10]

The answer is C. 3/11 or 0.27272727272

4 0

3 years ago

Please help me! And please no scam answers

Yuri [45]

Answer:

Average rate of change: $-3$

Step-by-step explanation:

Remember:

The average rate of change of a function over an interval $[a,b]$ is $\frac{f(b)-f(a)}{b-a}$

Given:

$[a,b]=[1,7]$

$f(b)=f(7)$

$f(a)=f(1)$

Calculation:

$f(b)=f(7)=-(7)^2+5(7)+14=-49+35+14=-49+49=0$

$f(a)=f(1)=-(1)^2+5(1)+14=-1+5+14=4+14=18$

$\frac{f(b)-f(a)}{b-a}=\frac{0-18}{7-1}=\frac{-18}{6}=-3$

Therefore, the average rate of change of the function $g(x)=-x^2+5x+14$ over the interval $1\leq x\leq7$ is $-3$ .

6 0

3 years ago

Which value of x makes the equation -5(x-3)=-25

Mnenie [13.5K]

Answer:

x=8

Step-by-step explanation:

-5(x-3)=-25

Divide each side by -5

-5/-5(x-3)=-25/-5

x-3 = 5

Add 3 to each side

x-3+3 = 5+3

x = 8

4 0

3 years ago

Read 2 more answers

Please help me out am confused

Kipish [7]

Answer:

Step-by-step explanation:

separate into squares

i separated it into three squares (rectangles);

9x5

3x2

find the area of the three then add, 45+6+6

Total Area = 57m^2

7 0

3 years ago

There are 340 freshman at BHSS. This is one hundred less than two times the number of sophomores. Find the number of sophomores

natta225 [31]

To put it into an equation, it would be:

340 = 2x - 100

with x being the amount of sophomores at BHSS.

Solve it:

340 + 100 = 2x

2x = 440

x = 220

The number of sophomores at BHSS is 220.

5 0

3 years ago