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erik [133]
3 years ago
7

After substituting, what is the first step when evaluating x + 3 x minus 4.2 when x = 5?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

Multiply 3 by 5

Step-by-step explanation:

the P and M in PEMDAS because there’s multiplication inside the parentheses

5 + 3(5) - 4.2

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(1.2)Consider the diagram below. Identify a point.
Fynjy0 [20]

Option B is correct. <em>Point F</em><em> is the </em><em>only point </em><em>according to the option given</em>

A point is defined as an exact location with no size, length, or even width.

From the diagram shown, we have points, plane, and line segments.

  • The only plane that we have is plane R making option C incorrect.

  • A line is defined as a straight figure connected by two points. From the diagram, the line segments that we have are AN, BN, and AB falsifying options A and D.

The points are C, D, E, and F. Hence the correct option is B.<em> Point F</em><em> is the </em><em>only point </em><em>according to the option given</em>

Learn more here: brainly.com/question/13099718

6 0
3 years ago
Jasmine is riding on a carousal. She is sitting 9.5 feet from the center and it takes 20 seconds to
rusak2 [61]

Answer:

<em>2.983 </em>ft/sec

Step-by-step explanation:

Given that

Distance between center and Jasmine riding on a carousal = 9.5 feet

Time taken to complete one rotation = 20 seconds

To find:

Jasmine's linear speed = ?

Solution:

Number of revolutions per minute = \frac{60}{20} = 3

Formula for linear speed is given as:

v=\dfrac{2\pi}{60}\cdot r\cdot RPM

Where r is the radius of circular path and

RPM is the number of revolutions per minute.

v=\dfrac{2\pi}{60}\times 9.5 \times 3\\\Rightarrow v=\dfrac{\pi}{10}\times9.5 \\\Rightarrow v = \bold{2.983\ ft/sec}

Therefore, the linear speed is <em>2.983 ft/sec.</em>

5 0
4 years ago
5|2x - 3| + 4 = 9<br> How do you solve this
agasfer [191]

Answer:

x = 2, or x = -1

Step-by-step explanation:

If 2x - 3 is inside the parenthesis (), then the value of x is 2.

If 2x - 3 is inside the absolute value sign, then the value of x will probably be -1.

<u>Solution 1</u>

(10x-15) + 4 = 9

10x -11 = 9

10x = 20    -> x = 2

<u>Solution 2</u> (Not 100% sure)

|10x -15| +4 = 9

10x + 15 +4 = 9

10x + 19 = 9

10x = -10      -> x = -1

Please correct me if I'm wrong.

<u />

3 0
3 years ago
I don’t understand this
mylen [45]
To solve for an unknown number, you have to keep isolating it till it is all alone:
A=P(1+rt)
(1+rt)=A/P
rt=A/P -1
r=(A/P-1)/t
7 0
3 years ago
Matches the description in the table below. 
tatiyna
I think it is A because i think it is the only one that makes sense
5 0
3 years ago
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