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m_a_m_a [10]
3 years ago
12

Find the general term of the quadratic sequence 3, 6, 11, 18, 27,....,...​

Mathematics
1 answer:
AVprozaik [17]3 years ago
3 0

Answer: 39.

Step-by-step explanation:

As 3+3=6, 6+5=11,11+7=18,18+9=27,27+11=39.

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What is the perimeter of the triangle shown on the coordinate plane,to the nearest tenth of a unit ?
ollegr [7]

Answer:

25.6 units

Step-by-step explanation:

From the figure we can infer that our triangle has vertices A = (-5, 4), B = (1, 4), and C = (3, -4).

First thing we are doing is find the lengths of AB, BC, and AC using the distance formula:

d=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}

where

(x_1,y_1) are the coordinates of the first point

(x_2,y_2) are the coordinates of the second point

- For AB:

d=\sqrt{[1-(-5)]^{2}+(4-4)^2}

d=\sqrt{(1+5)^{2}+(0)^2}

d=\sqrt{(6)^{2}}

d=6

- For BC:

d=\sqrt{(3-1)^{2} +(-4-4)^{2}}

d=\sqrt{(2)^{2} +(-8)^{2}}

d=\sqrt{4+64}

d=\sqrt{68}

d=8.24

- For AC:

d=\sqrt{[3-(-5)]^{2} +(-4-4)^{2}}

d=\sqrt{(3+5)^{2} +(-8)^{2}}

d=\sqrt{(8)^{2} +64}

d=\sqrt{64+64}

d=\sqrt{128}

d=11.31

Next, now that we have our lengths, we can add them to find the perimeter of our triangle:

p=AB+BC+AC

p=6+8.24+11.31

p=25.55

p=25.6

We can conclude that the perimeter of the triangle shown in the figure is 25.6 units.

6 0
3 years ago
What is the value of the expression? <br> 5(-4)-(10+5)
andrew-mc [135]

Answer:

35

Step-by-step explanation:

4 0
3 years ago
Is -9 a rational number
Artemon [7]

Answer:

If we mean - √9, then it is a rational number.

Step-by-step explanation:

6 0
3 years ago
Pls answer for brainliest!
bezimeni [28]

Answer:

h<2

Step-by-step explanation:

5×2h+5×8<60

10h+40<60

10h<60-40

<u>1</u><u>0</u><u>h</u><u><</u><u>2</u><u>0</u>

<u>1</u><u>0</u><u>. </u><u> </u><u> </u><u> </u><u>1</u><u>0</u>

h<2

8 0
3 years ago
Read 2 more answers
A Square has an area of 324cm^2 . What is the squares’s perimeter?
a_sh-v [17]

Answer:

72cm

Step-by-step explanation:

A=a^2

p=4a

p=4√A=4x√324=72 cm

3 0
2 years ago
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