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3 years ago

Help please I am confused on how to solve this.

Mathematics

1 answer:

FinnZ [79.3K]3 years ago

3 0

Answer:

DONT GO ON THE LINK IT SPREADS VIRUS

Step-by-step explanation:

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Question 2 of 40

suter [353]

The answer should be C because if you use the rule , y2-y1/x2-x1 , you can find the slope which is equal to 5 so y=5x

I hope that helps you and really sorry if my answer was wrong but I tried my best!

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3 years ago

Property used in 4/3 x1/8= 1/8x 4/3

Aneli [31]

Answer: associative property

Step-by-step explanation:

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3 years ago

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Write the equation of a circle whose center is at the origin and contains the point (7,0)

Sonja [21]

${x}^{2} + {y}^{2} - 14 = 0$

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4 years ago

In △ABC, CM is the median to AB and side BC is 12 cm long. There is a point P∈CM and a line AP intersecting BC at point Q. Find

defon

Answer:

CQ = 2.4 cm
BQ = 9.6 cm

Step-by-step explanation:

This development is ugly, but it works.

Let area ΔABC = 6a. Then area ΔAMC = 3a, and area ΔAPC = a. Similarly, area ΔBMC = 3a, and area ΔBPC = a.

Let area ΔCPQ = x. Then ...

... area ΔACQ = area ΔAPC + area ΔCPQ

... area ΔACQ = a + x

Define k such that BQ : CQ = k : 1. Then ...

... area ΔBPQ + area ΔCPQ = area ΔBPC

... kx + x = a = (k +1)x

The division of BC into parts of ratio k : 1 means ...

... area ΔABQ = k × area ΔACQ

... area ΔABQ + area ΔACQ = area ΔABC

... k × area ΔACQ + area ΔACQ = area ΔABC

... (k +1)(x +a) = 6a . . . . . . . area ΔACQ = x+a

... (k +1)x +(k +1)a = 6a . . . . . distributive property

... a + (k +1)a = 6a

... k +2 = 6 . . . . . . . . . . . . . . . divide by a, simplify

... k = 4

Now, we know BQ : CQ = 4 : 1, so ...

... BQ = 4/5 × 12 cm = 9.6 cm

... CQ = 1/5 × 12 cm = 2.4 cm

6 0

3 years ago

2 + 9m >-25 and -9m + 10 > 28

Nadusha1986 [10]

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$2 + 9m > - 25$

Subtract sides 2

$- 2 + 2 + 9m > - 2 - 25$

$9m > - 27$

Divide sides by 9

$\frac{9m}{9} > \frac{ - 27}{9} \\$

$m > - 3$

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$- 9m + 10 > 28$

$28 < - 9m + 10$

Add sides 9m

$9m + 28 < 9m - 9m + 10$

$9m + 28 < 10$

Subtract sides 28

$9m + 28 - 28 < 10 - 28$

$9m < - 18$

Divide sides by 9

$\frac{9m}{9} < \frac{ - 18}{9} \\$

$m < - 2$

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8 0

3 years ago