What is 399,639 rounded to the nearest underlined place value

Mathematics

1 answer:

Harman [31]3 years ago

8 0

400,000 show your place value in order to get the correct answer but most likely this is your answer

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Find the measure of ∠COB in the figure. answers: A) 24° B) 48° C) 72° D) 132°

jasenka [17]

Answer: 48

Step-by-step explanation: COB and DOA are vertical angles. This means the two of them have the same measure. Because we know the measuremen of DOA, we can easily find the measuremen for COB since these angles are the same, so COB is 48 degrees.

7 0

3 years ago

Write the equation of a line in POINT-SLOPE

Tems11 [23]

Answer:

y - 2 = 1/2(x - 3)

Step-by-step explanation:

In this question, we need to write the given information in point-slope form.

Point-slope form: y - y1 = m(x - x1)

We know that our slope is 1/2

We are also given a coordinate: (3, 2)

Plug in the information to its correct spot in the equation:

y - 2 = 1/2(x - 3)

Your point-slope form would be: y - 2 = 1/2(x - 3)

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3 years ago

The graph of this function is "M" shaped? f(x)=−3x4−7x3+6x2+5 Question 28 options: True False

Nana76 [90]

the answer of this question is 8 bro..........................................................

8 0

3 years ago

Which second-degree polynomial function has a leading coefficient of –1 and root 5 with multiplicity 2?

PIT_PIT [208]

A second degree polynomial function has the general form:

$\displaystyle{f(x)=ax^2+bx+c$ , where $a\neq0$ .

The leading coefficient is a, so we have a=-1.

5 is a double root means that :

i) f(5)=0,
ii) the discriminant D is 0, where $D=b^2-4ac$ .

Substituting x=5, we have

f(5)=a(5)^2+b(5)+c,

and since f(5)=0, and a is -1 we have:

0=-25+5b+c
thus c=25-5b.

By ii) $\displaystyle{b^2-4ac=0$ .

Substituting a with -1 and c with 25-5b we have:

   $\displaystyle{b^2-4ac=0$
   $\displaystyle{b^2-4(-1)(25-5b)=0$
   $\displaystyle{b^2+4(25-5b)=0$
   $\displaystyle{b^2-20b+100=0$
   $\displaystyle{(b-10)^2=0$
   $\displaystyle{b=10$

Finally we find c: c=25-5b=25-50=-25

Thus the function is       $\displaystyle{f(x)=-x^2+10x-25$

Remark: It is also possible to solve the problem by considering the form

$f(x)=-1(x-5)^2$ directly.

In general, if a quadratic function has leading coefficient a, and has a root r of multiplicity 2, then its form is $f(x)=a(x-r)^2$

5 0

3 years ago

Read 2 more answers

What is the volume of this rectangular prism?

Flura [38]

Answer:

$9 \frac{1}{3} {cm}^{3}$