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Serjik [45]
3 years ago
5

D is the centroid of ABC. What is the value of x when BD=3x+30 and BF=12x​

Mathematics
1 answer:
Klio2033 [76]3 years ago
4 0

Answer: 10/3

Step-by-step explanation:3x+30=12x or other way around (doesn’t matter) .

Subtract 3x ; 30= 12x-3x

Divide: 30/9= 9x/9

X=10/3

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Does this converge or diverge? Which of the follow test will be used to figure out the equation?
PSYCHO15rus [73]

From the listed choices, you can prove the series diverges using either the integral or <em>p</em>-series test.

  • Integral test:

We have

\displaystyle\sum_{n=1}^\infty\ge\int_1^\infty\frac{\mathrm dx}{\sqrt x}=\lim_{x\to\infty}2\sqrt x-2

which diverges to infinity, so the series is divergent.

  • <em>p</em>-series test:

The series

\displaystyle\sum_{n=1}^\infty\frac1{n^p}

converges only for p>1. In the given sum, we have p=\frac12, so the series is divergent.

7 0
3 years ago
caculate the distance between points -3,-4 and -7,3 in the coordinate plane. round your answer to the nearest hundredth​
laiz [17]

Answer:

a

Step-by-step explanation:

6 0
3 years ago
Replace ∗ with a monomial so that the derived equality will be an identity: (15y + ∗)2 = 225y2+12x3y+0.16x6
kobusy [5.1K]

Answer:

<u>∗ = 0.4x³</u>

Step-by-step explanation:

(15y + ∗)² = 225y²+12x³y+0.16x⁶

<u>Note:</u>

225y² = 15y * 15y = (15y)²

12x³y = 2 * 15y * 0.4x³

0.16x⁶ = 0.4x³ * 0.4x³ = (0.4x³)²

So, by factoring the right hand side:

225y²+12x³y+0.16x⁶ = (15y + 0.4x³)²

By comparing the left hand side with (15y + 0.4x³)²

<u>So, ∗ should be replaced with the monomial 0.4x³</u>

6 0
3 years ago
The length of a table is 8 times longer then it’s width. If the perimeter is 72, how wide is the table?
Andrews [41]

Answer:

4 units wide

Step-by-step explanation:

Let the width of the table be 'w'

Given:

Perimeter of the table is, P=72

The perimeter of the rectangular table is given as the sum of all the sides of the rectangle. The sides include two lengths and two widths.

Length of the table is 8 times longer than its width. Therefore,

Length,L=8w

Now, perimeter is given as:

P=2L +2w\\P=2(8w)+2w\\P=16w+2w\\P=18w\\w=\frac{P}{18}

Now, plug in 72 for 'P' and solve for 'w'. This gives,

w=\frac{P}{18}\\\\w=\frac{72}{18}\\\\w=4

So, the table is 4 units wide.

6 0
3 years ago
What is the opposite <br> of -5/3
ss7ja [257]

Answer:

5/3

Step-by-step explanation:

The opposite of a number always has to have the same distance from zero, positive or negative. So in this case, since -5/3 is a negative fraction, the answer would be 5/3. This fraction may be positive but they have the same distance from zero.

8 0
2 years ago
Read 2 more answers
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