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Hunter-Best [27]
3 years ago
8

Incorrect 00:00 Evaluate the expression for x = 1.7. Enter your answer in the box. х2 + 3x​

Mathematics
1 answer:
IrinaK [193]3 years ago
5 0

Answer:

7.99

Step-by-step explanation:

x^2 +3x

Let x=1.7

(1.7)^2 +3(1.7)

2.89+5.1

7.99

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A square serving platter has an area of 124 in. 2. Which is the best estimate of the side length of the platter?
inysia [295]

Answer:

The correct answer is 11.1.

Step-by-step explanation:

Given:

Area of square platter 124in^{2}.

If side length of square platter is x.

Then, area=a^{2}.

As per question, area=124inch^{2}.

So, a^{2}=124.

Taking square both the sides, \sqrt{a^{2} }=\sqrt{124}= a=11.13.

Since the decimal is given in the hundredth position, we can estimate the value to the nearest tenth of a decimal.

Here, the hundredth place has the digit 3.

As 3 is less than 5, we don't add any number to the neighboring digit 1.

So, 3 becomes 0  and the number 11.13 becomes 11.10 and hence 11.1.

Therefore, the correct answer is 11.1

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4 0
3 years ago
I need the work to this please
wlad13 [49]

Answer:

  ? = 14

Step-by-step explanation:

If ∆EFG ~ ∆CBA, we have the proportion

  FG/FE = BA/BC . . . . . any pairs of corresponding sides will have the same ratio for similar triangles. (It is convenient to put the unknown in the numerator.)

  ?/18 = 21/27 . . . . . . filling in the given numbers

Multiplying by 18, we have ...

  ? = 18·21/27

  ? = 14

_____

If the triangles are not designated as being similar, the problem is unworkable.

6 0
3 years ago
Help please and thank you
Blababa [14]

Answer:

<u><em>73.72 ft Squared</em></u>

Step-by-step explanation:

First you need to find the area of the rectangle the area of rectangle is 8x10=80. Then You take that 80=3.14x2. then you find the area by dividing it. so...

1.) 80=3.14x2

3.14x2=6.28       <u> 80=6.28     </u>          (Then you divide 6.28 by 80)

                             80    80                  

3 0
3 years ago
find the volume of a cone with a base diameter of 12in and a height of 9in . write the exact volume in terms of π , and be sure
mariarad [96]
The volume (V) of the cone is 1/3 of the product of the area (A) of the base and height (h). The area of the circular base is, A = πd²/4. So,
                               V = πd²h/ 12
Substituting the given values,
                                V = π(12 in)²(9 in) / 12 = 108π in³
Thus, the volume of the cone is 108π in³.
4 0
3 years ago
The coordinate plane below shows a triangular region at sea between three islands. Each unit on the coordinate plane represents
statuscvo [17]

Answer:

Step-by-step explanation:

A point in geometry is a location. It has no size i.e. no width, no length and no depth. A point is shown by a dot. A line is defined as a line of points that extends infinitely in two directions. ... A plane extends infinitely in two dimensions

4 0
3 years ago
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