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Talja [164]
2 years ago
11

I NEED HELP ASAP GIVE U 50 POINTS​

Mathematics
1 answer:
Dovator [93]2 years ago
4 0

Answer:

37.5

Step-by-step explanation:

50+160=210.

210 is a 31.25% increase from 160

Multiply 120 by 1.3125 to get 157.5

subtract 120 from 157.5 to get a 37.5km increase or a 31.25% increase :)

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If a is an integer, which of the 
sweet [91]
So to work this out we need to find the 4th root of each of those and pick the one that gives an integer.

A: \sqrt[4]{1.6*10^1^1} = 632.455... This is a decimal therefore <em>not</em> an integer.

B: \sqrt[4]{1.6*10^1^2} =1124.682... Again a decimal, therefore <em>not </em>an integer.

C: \sqrt[4]{1.6*10^1^3} =2000 This is a whole number, so it <em>is </em>an integer.

D: \sqrt[4]{1.6*10^1^4} =3556.558... Decimal, therefore <em>not </em>an integer

E: \sqrt[4]{1.6*10^1^5} =6324.555... Again a decimal, <em>not</em> an integer.

The only one that gives an integer when put to the 4th root is C, therefore:

1.6*10^1^3 could be A^4, as the 4th root of it is an integer.

5 0
3 years ago
9x10^2 which sentence matches the question assigned
Serga [27]

The computation of the index shows that the value of 9 × 10² will be 900.

<h3>How to calculate the indices?</h3>

From the information given, we are told to calculate the value of 9 × 10². This will be calculated thus:

= 9 × 10²

Note that 10² simply means that you've to multiply 10 twice. This will be:

= 10 × 10 = 100

Therefore, 9 × 10² will be:

= 9 × 100

= 900

Learn more about induces on:

brainly.com/question/10339517

#SPJ1

5 0
2 years ago
One type of insect is 0.0052 meters long. what is this length in scientific notation?
pochemuha
Your answer would be:
5.2*10^(-3)

hope this helps!
happy thanksgiving
4 0
3 years ago
Read 2 more answers
PLEASE HELP ME I REALLY NEED HELP
Montano1993 [528]

Answer:

mean; 7.55

median: 9

range: 8

mode: 10

standard deviation: 2.9 or 3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
(2x² - 5x-3)/ (x-3)<br> DIvide the polynomials
Anika [276]

Answer:

2x + 1

Step-by-step explanation:

\frac{(2x² - 5x-3)}{(x - 3)}

Factor out 2x² - 5x-3

\frac{(2x + 1)(x - 3)}{x - 3}

divide x - 3 by x - 3

=> 2x + 1

<em><u>Or another step</u></em>

Step by Step Solution

STEP

1

:

Equation at the end of step 1

STEP

2

:

2x² - 5x - 3/ x - 3

Trying to factor by splitting the middle term

2.1 Factoring 2x² - 5x - 3

The first term is, 2x² its coefficient is 2 .

The middle term is, -5x its coefficient is -5 .

The last term, "the constant", is -3

Step-1 : Multiply the coefficient of the first term by the constant 2 • -3 = -6

Step-2 : Find two factors of -6 whose sum equals the coefficient of the middle term, which is -5 .

-6 + 1 = -5 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -6 and 1

2x² - 6x + 1x - 3

Step-4 : Add up the first 2 terms, pulling out like factors :

2x • (x-3)

Add up the last 2 terms, pulling out common factors :

1 • (x-3)

Step-5 : Add up the four terms of step 4 :

(2x+1) • (x-3)

Which is the desired factorization

Canceling Out :

2.2 Cancel out (x-3) which appears on both sides of the fraction line.

Final result :

2x + 1

6 0
2 years ago
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