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Sliva [168]
3 years ago
6

Is x^2 + 5x -3x^-2 polynomial

Mathematics
1 answer:
makkiz [27]3 years ago
4 0
It’s not a polynomial

A polynomial is a combination of terms separated by + + or − -signs. A polynomial does not contain variables raised to negative or fractional exponents, variables in the denominator or under a radical, or any special features such as trigonometric functions, or logarithms.
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Can someone pls pls pls answer this!??
Zina [86]
I can’t see it sry buddy :((
3 0
3 years ago
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Last year, the world produced 3.5 billon tons of cement and that amount could increase by a billion tons by year 2050. Express t
Svetradugi [14.3K]

Answer:

4.5 \times 10^{9} tons.

300 times.

Step-by-step explanation:

Last year, the world produced 3.5 billion tons of cement and that amount could increase by a billion tons by the year 2050.

So, the net production of cement by the year 2050 will be (3.5 + 1) = 4.5 billion tons i.e. 4.5 \times 10^{9} tons. (Answer)

Now, this amount is larger than 1.5 \times 10^{7} by \frac{4.5 \times 10^{9} }{1.5 \times 10^{7}} = 300 times. (Answer)

5 0
3 years ago
What is the value of x to the nearest tenth?
natka813 [3]
X = 2.1 x tan(37)

x = 1.58 = 1.6
5 0
3 years ago
A study will be conducted to investigate whether there is a difference in the mean weights between two populations of raccoons.
enyata [817]

Answer:

<h2>In this case,the answer would be option d) given in the answer choices or options or  A two-sample t-test for a difference between population means.</h2>

Step-by-step explanation:

  • In Statistics,a two sample test is generally used to examine or compare two different population means with the main objective to verify whether the population means are equal or otherwise.
  • The two sample t-test basically involves the hypothesis testing to determine or verify the equality between two concerned population means.
  • In this case,the two different populations of raccoons are given and the equality of the mean sample weights of the two distinct populations can be determined or evaluated by employing the hypothesis testing method under a two sample t test for measuring difference in two population means.
5 0
3 years ago
Simplify this map scale 1cm:5km
Vadim26 [7]

This problem belongs to comparing quantities.

we have 1 cm :5km

we have different units in our ratio so we need to convert km as cm so we can have same units here.

we know that

1 km =1000m

5km=5000m

100cm=1m

5000m=500000cm

1cm:500000cm =1÷500000 units will be cancels as we have same unit on to and bottom

1÷500000=0.000002 this is the simplified form of given ratio

4 0
3 years ago
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