1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rasek [7]
3 years ago
13

Estimate each product 28.21× 8.02=

Mathematics
2 answers:
Fittoniya [83]3 years ago
8 0

Answer:

28.21\times 8.02\approx 224

Step-by-step explanation:

Given : Expression 28.21\times 8.02

To find : Estimate each product ?

Solution:

Estimating is to rounding to the nearest whole number.

Estimating 28.21 to whole number is by rounding ones.

As 2<5 it round to zero and ones place remain same.

So, 28.21\approx 28

Estimating 8.02 to whole number is by rounding ones.

As 0<5 it round to zero and ones place remain same.

So, 8.02\approx 8

Now, 28.21\times 8.02\approx 28\times 8

28.21\times 8.02\approx 224

topjm [15]3 years ago
3 0
28.21 rounds to 28 and 8.02 rounds to 8. so 8 x 28 would be your estimated product answer
You might be interested in
The product of - 6 and a number x, increased by 23 is – 163. What is<br>the number?​
vodka [1.7K]

Answer:

Hope this is correct

4 0
3 years ago
84 divided by 6 distributive property
KATRIN_1 [288]
Eighty four divided by 6 is 14
3 0
3 years ago
How can knowing how to represent proportional relationships in different ways be useful to solving problems
Anna35 [415]

Answer:

  appropriately writing the proportion can reduce or eliminate steps required to solve it

Step-by-step explanation:

The proportion ...

  \dfrac{A}{B}=\dfrac{C}{D}

is equivalent to the equation obtained by "cross-multiplying:"

  AD = BC

This equation can be written as proportions in 3 other ways:

  \dfrac{B}{A}=\dfrac{D}{C}\qquad\dfrac{A}{C}=\dfrac{B}{D}\qquad\dfrac{C}{A}=\dfrac{D}{B}

  Effectively, the proportion can be written upside-down and sideways, as long as the corresponding parts are kept in the same order.

I find this most useful to ...

  a) put the unknown quantity in the numerator

  b) give that unknown quantity a denominator of 1, if possible.

__

The usual method recommended for solving proportions is to form the cross-product, as above, then divide by the coefficient of the variable. If the variable is already in the numerator, you can simply multiply the proportion by its denominator.

<u>Example</u>:

  x/4 = 3/2

Usual method:

  2x = 4·3

  x = 12/2 = 6

Multiplying by the denominator:

  x = 4(3/2) = 12/2 = 6 . . . . . . saves the "cross product" step

__

<u>Example 2</u>:

  x/4 = 1/2 . . . . we note that "1" is "sideways" from x, so we can rewrite the proportion as ...

  x/1 = 4/2 . . . . . . written with 1 in the denominator

  x = 2 . . . . simplify

Of course, this is the same answer you would get by multiplying by the denominator, 4.

The point here is that if you have a choice when you write the initial proportion, you can make the choice to write it with x in the numerator and 1 in the denominator.

8 0
3 years ago
Write and equation for the shift of the parent graph y=1/x
SashulF [63]
You can think of this equation as \bf f(x)=\cfrac{1}{x}\implies f(x)=(x)^{-1}

and thus apply the transformations to it as such

\bf \qquad \qquad \qquad \qquad \textit{function transformations}&#10;\\ \quad \\\\&#10;% left side templates&#10;\begin{array}{llll}&#10;f(x)=&{{  A}}({{  B}}x+{{  C}})+{{  D}}&#10;\\ \quad \\&#10;y=&{{  A}}({{  B}}x+{{  C}})+{{  D}}&#10;\\ \quad \\&#10;f(x)=&{{  A}}\sqrt{{{  B}}x+{{  C}}}+{{  D}}&#10;\\ \quad \\&#10;f(x)=&{{  A}}(\mathbb{R})^{{{  B}}x+{{  C}}}+{{  D}}&#10;\\ \quad \\&#10;f(x)=&{{  A}} sin\left({{ B }}x+{{  C}}  \right)+{{  D}}&#10;\end{array}\\\\&#10;--------------------\\\\

\bf \bullet \textit{ stretches or shrinks horizontally by  } {{  A}}\cdot {{  B}}\\\\&#10;\bullet \textit{ flips it upside-down if }{{  A}}\textit{ is negative}&#10;\\\\&#10;\bullet \textit{ horizontal shift by }\frac{{{  C}}}{{{  B}}}\\&#10;\left. \qquad  \right. if\ \frac{{{  C}}}{{{  B}}}\textit{ is negative, to the right}\\\\&#10;\left. \qquad  \right.  if\ \frac{{{  C}}}{{{  B}}}\textit{ is positive, to the left}\\\\

\bf \bullet \textit{ vertical shift by }{{  D}}\\&#10;\left. \qquad  \right. if\ {{  D}}\textit{ is negative, downwards}\\\\&#10;\left. \qquad  \right. if\ {{  D}}\textit{ is positive, upwards}\\\\&#10;\bullet \textit{ period of }\frac{2\pi }{{{  B}}}

1)  D = 2, C = +3

2) D = -12, C = -2

3) C = +6, D = 3

4) C = -7, D = -7
7 0
2 years ago
Jefferson High School is looking to expand its student parking lot by expanding the existing lot as shown above. The size of the
Art [367]

Answer:

60

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Selma uses a jogging trail that runs through a park near her home. The trail is a loop that is 3/4 of a mile long. On Monday, Se
    8·1 answer
  • Help I say it is B but want to be sure
    10·2 answers
  • A farmer raises cows and chickens. The farmer had a total of 25 animals. One day he counts the legs of all of his animals and co
    5·1 answer
  • A candy machine is filled with candy. The weight of the candy can differ from the desired 84 ounce weight by no more than 0.5 ou
    9·1 answer
  • Apply the distributive property to simplify the expression. -7(4x-3)
    11·2 answers
  • Express 5.03 as a fraction.
    12·2 answers
  • 6 2 need help on this asap
    11·2 answers
  • Solve and graph each inequality please helo this is due tomorrow please 15 points!!​
    5·1 answer
  • Help please I will be so happy
    10·1 answer
  • Noah finds an expression for V(x) that gives the volume of an open-top box in cubic inches in terms of the length x in inches of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!