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3 years ago

13

True-false:the number 0.4 can be written as 4/10, so it is rational number

2 answers:

Lana71 [14]3 years ago

8 0

Well, the answer to this question would be $true$

$Good\\ luck \\ on \\ your \\ assignment 
$

Digiron [165]3 years ago

5 0

True

all rational numbers can be written in the form a/b where a and b are integers and b≠0

4 and 10 are integers and 10≠0 so it is a rational number

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20 points! I would really like some help! :) (Question attached below)

snow_lady [41]

Answer:

See below.

Step-by-step explanation:

(a)

To multiply two polynomials, multiply every term of the first polynomial by every term of the second polynomial. Then combine like terms.

$(\dfrac{1}{2}x - \dfrac{1}{4})(5x^2 - 2x + 6) =$

$= \dfrac{1}{2}x \times 5x^2 - \dfrac{1}{2}x \times 2x + \dfrac{1}{2}x \times 6 - \dfrac{1}{4} \times 5x^2 + \dfrac{1}{4} \times 2x - \dfrac{1}{4} \times 6$

$= \dfrac{5}{2}x^3 - x^2 + 3x - \dfrac{5}{4}x^2 + \dfrac{1}{2}x - \dfrac{3}{2}$

$= \dfrac{5}{2}x^3 - \dfrac{9}{4}x^2 + \dfrac{7}{2}x - \dfrac{3}{2}$

(b)

No. Since the binomials are different, the product of two different binomials and the same trinomial will give different results.

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3 years ago

Can sum1 answer these from least to greatest please?

Ivahew [28]

vietnam , mexico,russia,saudi arabia, paraguary,nepal,china,usa,ireland,vatican city

Step-by-step explanation:

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3 years ago

Ming-Li spent $15 at the movies. She then earned $30 babysitting. She spent $12 at the bookstore. She now has $18 left. How much

liq [111]

$21 I believe (it's 1 am where I am so I'm not 100% sure but I think it's correct)

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2 years ago

A kindergarten teacher asked the students’ parents to send their child to school with two fruits (apples and/or oranges). Below

hichkok12 [17]

Answer:

The frequency of oranges is the classroom is 47.37%.

Step-by-step explanation:

The relative frequency of oranges is the number of oranges divided by the total number of fruits.

We have that:

8 students brought 2 apples each. So there are 8*2 = 16 apples

4 students brought an apple and an orange each. So there are 16 + 4*1 = 20 apples and 4*1 = 4 oranges.

7 students brough 2 oranges each. So there are 4 + 2*7 = 18 oranges.

There are 18 oranges, and 20+18 = 38 fruits in total.

So the frequency of oranges in the classrom is

$F = \frac{18}{38} = 0.4737$

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3 years ago

Training has saved $425 to spend during her 14-day vacation about how much money can she spend a day

lukranit [14]

She can spend about $30 per day.

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3 years ago

Read 2 more answers