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2 years ago

The sum of 10 and one third of a number is equal to 13. What is the number?

Mathematics

1 answer:

Arisa [49]2 years ago

6 0

10 + 1/3x= 13

1/3x=3

divide 1/3 on each side to cancel it out

3/ 1/3= 3 times 3 which equals= 9

the number is 9

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Express the radical using the imaginary unit, i.

MrMuchimi

Answer:

±3i

Step-by-step explanation:

Given the value ±√-9, we are to express the value using the imaginary number 'I'

±√-9 = ±√9×-1

= ±√9 × √-1

In complex number, √-1 = i

The expression becomes;

±√9 = ±3 × i

±√9 = ±3i

Hence the value in simplified form is ±3i

7 0

3 years ago

Evaluate by using suitable property: (-343) x (-12) + (-343) x (-88) . Mention the property used.

Natalka [10]

Answer:

26,068

Step-by-step explanation:

(-343) x (-12) + (-343) x (-88)

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= 26,068

4 0

2 years ago

6 out of 13 of your

Tasya [4]

Answer:

46.2%

Step-by-step explanation:

6/13 x 100% = 46.1538461538% (rounded to the nearest tenth: 46.2%)

Hope that helps!

5 0

2 years ago

Read 2 more answers

Give an equivalent expression for each problem

lord [1]

Answer:1. 4x^2-3x-6

2. 4x^2+7x-8

3. Is the same problem as #2

Step-by-step explanation:

4 0

3 years ago

In the following pair of polynomials, the second polynomial is a factor of the first. Factor completely x^3+3x^2-18x , x-4

OLga [1]

Answer:

The required factors are: x, (x + 6) and (x - 3).

Step-by-step explanation:

As per the question,

The given polynomial is:

$x^{3}+3x^{2}-18x$

Now,

BY factorization, we get

$x^{3}+3x^{2}-18x$

$=x(x^{2}+3x-18)$

By splitting the mid-term, that is split 3x like:

3x = 6x - 3x

Therefore,

$x(x^{2}+6x-3x-18)$

Now on further solving by taking common factor out, we get

$=x[x(x+6)-3(x+6)]$

$=x(x+6)(x-3)$

Therefore, the given second polynomial (x - 4), is not a factor of given polynomial $x^{3}+3x^{2}-18x$ .

Hence, the given polynomial has three factor x, (x + 6) and (x - 3).

8 0

3 years ago