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3 years ago

Write 82,700,000 in scientific notation.

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

8 0

Answer:

8.27 x 10^7

Step-by-step explanation:

Move the decimal over 7 times

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In math what are 3 ways numbers are related

zheka24 [161]

Answer:Recognise three numbers that are related through the operations of addition and subtraction.

Recognise that there are two related addition and two subtraction equations in a 'family of facts'.

Write and read sets of related addition and subtraction equations.

Step-by-step explanation:that is all

5 0

3 years ago

The cost for an upcoming field trip is $30 per student. The cost of the field trip C, in dollars, is a function of the number of

kompoz [17]

Answer:options B and D are the correct answers.

Step-by-step explanation:

The cost for an upcoming field trip is $30 per student. The cost of the field trip C, in dollars, is a function of the number of students x.

The function is defined by

C(x) = 30x

The values of x must be whole numbers. Therefore, the possible outputs for the defined function would be

B. 30 which means the cost for only one student.

D. 90 which means the total cost for 3 students.

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3 years ago

What is the length of AD, in centimeters?

LekaFEV [45]

Answer:

AD=2

Step-by-step explanation:

$\frac{6}{12} =\frac{AB}{20} \\AB=\frac{6}{12} \times 20=10\\AD+DF+FB=10\\AD+6+FB=10\\AD+FB=10-6=4\\AD+AD=4 ( \because ~FB=AD )\\2AD=4\\AD=4/2=2$

8 0

3 years ago

Read 2 more answers

Which statement best describes the function below?

12345 [234]

The answer is B
Because when you graph it in the calculator you get x=-136 and that goes to one to one function on the graph

5 0

3 years ago

For the following pair of functions, find (f+g)(x) and (f-g)(x).

ch4aika [34]

Given:

The functions are

$f(x)=4x^2+7x-5$

$g(x)=-9x^2+4x-13$

To find:

The functions $(f+g)(x)$ and $(f-g)(x)$ .

Solution:

We know that,

$(f+g)(x)=f(x)+g(x)$

$(f+g)(x)=4x^2+7x-5-9x^2+4x-13$

$(f+g)(x)=(4x^2-9x^2)+(7x+4x)+(-5-13)$

$(f+g)(x)=-5x^2+11x-18$

And,

$(f-g)(x)=f(x)-g(x)$

$(f-g)(x)=(4x^2+7x-5)-(-9x^2+4x-13)$

$(f+g)(x)=4x^2+7x-5+9x^2-4x+13$

$(f+g)(x)=(4x^2+9x^2)+(7x-4x)+(-5+13)$

$(f-g)(x)=13x^2+3x+8$

Therefore, the required functions are $(f+g)(x)=-5x^2+11x-18$

and $(f-g)(x)=13x^2+3x+8$ .

7 0

3 years ago