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3 years ago

6. Are the following parallel, perp., or neither? y=3x-4 3x - y = 7

Mathematics

1 answer:

Vsevolod [243]3 years ago

6 0

Answer:

The following are parallel

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Can someone help me please.

zhannawk [14.2K]

Answer:

Lena's Method: 280
Jackson's Method: 280

Step-by-step explanation:

Lena's Method:

8 + 12 = 20
Plug 20 in: 14(20)
14(20) = 14 × 20 = 280

Jackson's Method:

14 × 8 = 112
14 × 12 = 168
Re-write the expression: 112 + 168
112 + 168 = 280

I hope this helps!

8 0

3 years ago

The volume of a cone with a height of 4 cm is 12π cubic cm. What is the radius of the base?

blondinia [14]

Answer:

r = 6cm

Step-by-step explanation:

Solve for r:

$v = \frac{1}{3} \pi {r}^{2}$

$12\pi = \frac{1}{3} \pi {r}^{2} \\ 12\pi = \frac{\pi {r}^{2} }{3} \\ 3 \times 12\pi = \pi {r}^{2} \\ 36\pi = \pi {r}^{2} \\ \frac{36\pi}{\pi} = \frac{\pi {r}^{2} }{\pi} \\ \sqrt{ {r}^{2} } = \sqrt{36} \\ r = 6$

4 0

2 years ago

Describe the relationship between two variables when the correlation coefficient r is one of the following.(a) near –1weak or no

AlexFokin [52]

Step-by-step explanation:

I don't know this math yet

sorry

7 0

3 years ago

Need help please assist me find the area of a regular hexagon

garri49 [273]

Answer:

The area of the regular hexagon is $166.3\ units^{2}$

Step-by-step explanation:

we know that

The area of a regular hexagon can be divided into 6 equilateral triangles

step 1

Find the area of one equilateral triangle

$A=\frac{1}{2}(b)(h)$

we have

$b=r=8\ units$

$h=4\sqrt{3}\ units$ ----> is the apothem

substitute

$A=\frac{1}{2}(8)(4\sqrt{3})$

$A=16\sqrt{3}\ units^{2}$

step 2

Find the area of 6 equilateral triangles

$A=(6)16\sqrt{3}=96\sqrt{3}=166.3\ units^{2}$

7 0

3 years ago

Tyler’s height is 57 inches. What could be his height in centimeters? Explain your reasoning. (1 inch= 2.54 cm)

Nina [5.8K]

Answer:

144.78 cm

Step-by-step explanation:

57 times 2.54

6 0

3 years ago

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