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olga nikolaevna [1]
3 years ago
12

Could someone please help? Thank You and NO LINKS!

Mathematics
2 answers:
Gekata [30.6K]3 years ago
8 0

Answer: the second and the third one are right

Step-by-step explanation:

Nesterboy [21]3 years ago
8 0

Answer:

4.25=17/4

4 1/4= 17/4

Step-by-step explanation:

You might be interested in
13 + {16 + 2 -[25 + 45) x 3] + 9}
Goshia [24]

Answer: -170

Concept:

When encountering questions that require multiple steps of the calculation, it is suggested to follow the PEMDAS.

  • <u>P</u>arenthesis
  • <u>E</u>xponents
  • <u>M</u>ultiplication
  • <u>D</u>ivision
  • <u>A</u>ddition
  • <u>S</u>ubtraction

Solve:

**Disclaimer** I assume that it is supposed to be (25 + 45). If it was, then you may refer to my answer. If the ")" after 45 is just a typo, you may point it out and I will redo it.

<u>Given expression</u>

 13 + {16 + 2 - [(25 + 45) × 3] + 9}

<u>Do the parenthesis of the inner most</u>

=13 + {16 + 2 - [70 × 3] + 9}

=13 + {16 + 2 - 210 + 9}

<u>Do addition first, then subtraction</u>

=13 + {18 - 210 + 9}

=13 + {27 - 210}

=13 - 183

=-170

Hope this helps!! :)

Please let me know if you have any questions

6 0
3 years ago
What value of x makes the in quantity 1/2 x greater than or less than 7 true
koban [17]
The answer is 666 because I’m good at math
4 0
3 years ago
A CAT scan produces equally spaced cross-sectional views of a human organ that provide information about the organ otherwise obt
True [87]

Answer:

1,107 cc

Step-by-step explanation:

The 10 intervals of the scanning are

[0,1.5), [1.5,3), [3,4.5), [4.5,6), [6,7.5), [7.5,9), [9,10.5), [10.5,12), [12,13.5), [13.5,15)

The ideal thing would be to estimate the volume with the Midpoint Rule should be take n=10.

As we must use n=5, we divide the interval [0,15] in five intervals of length 15/5 = 3

[0,3], [3,6], [6,9], [9,12], [12,15] and take their midpoints

1.5, 4.5, 7.5, 10.5, and 13.5.

Now we estimate the volume V of 5 cylinders of height h=3 and area of the base A equals to the area given for the scanning where that midpoints fall

Cylinder 1

Midpoint=1.5, interval of scanning 2nd

A = 18, V= height*area of the base = 18*3 =54  cc

Cylinder 2

Midpoint=4.5, interval of scanning 4th

A = 78, V= height*area of the base = 78*3 =234  cc

Cylinder 3

Midpoint=7.5, interval of scanning 6th

A = 106, V= height*area of the base = 106*3 =318  cc

Cylinder 4

Midpoint=10.5, interval of scanning 8th

A = 129, V= height*area of the base = 129*3 =387  cc

Cylinder 5

Midpoint=13.5, interval of scanning 10th

A = 38, V= height*area of the base = 38*3 =114  cc

And the <em>estimate volume </em>is

54+234+318+387+114=1,107 cm^3

6 0
3 years ago
What number should be added to both sides of the equation to complete the square
Vesna [10]

Answer:

36

Step-by-step explanation:

You take 1/2 the linear term's coefficient and square it.

The linear term is the term that contains just an x and a number -- in this case 12x

Take 1/2 12 = 6

and square it

6^2 = 36

So when you've done that you should get

x^2 + 12x + 36 = 11 + 36

x^2 + 12x + 36 = 47

5 0
3 years ago
use the fact that 10^3 = 2^10 to mentally find a vaule of n for which 2^n &gt; 10^50 &amp; 10^n &gt; 2^300
Rudiy27
2^n>10^{50}=10^{3\cdot16+2}=10^2(10^3)^{16}=10^2(2^{10})^{16}=5^22^{162}
2^{n-162}>25

The least power of 2 that exceeds 25 is 2^5=32, so we have

2^{n-162}=2^N>25\implies N=5\implies n-162=5\implies n=167

- - -

10^n>2^{300}=(2^{10})^{30}=(10^3)^{30}=10^{90}

The least integer n that satisfies this inequality would clearly be n=91.
6 0
3 years ago
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