Ask question

Ask question

All categories

2 years ago

15

Work out m and c for the line: 2 y + 6 x = − 4

2 answers:

love history [14]2 years ago

8 0

Your answer is:
3x+y=-2
explanation \/ brainliest?

soldier1979 [14.2K]2 years ago

4 0

Answer:

mn

Step-by-step explanation:

You might be interested in

Daine simplified the expression below.

Luda [366]

Answer:

He did NOT apply the distributive property correctly for 8(1 + 2i)

5 0

3 years ago

Find the value of k for which the matrix A = [2 -5 9 -1 3 -5 7 1 k] has rank 2. k = _________.

chubhunter [2.5K]

Answer:

k = 13

Step-by-step explanation:

Matrix is;

A =

[2 -5 9]

[-1 3 -5]

[ 7 1 k ]

Number of unknowns is less than the rank of 2. Thus, the determinant has to be zero for us to find k.

Thus, we have;

2((3 × k) - (-5 × 1)) -(-5)((-1 × k) - (-5 × 7)) + 9((-1 × 1) - (7 × 3)) = 0

Simplifying further gives;

2(3k +5) + 5(-k + 35) + 9(-22) = 0

6k + 10 - 5k + 175 - 198 = 0

k - 198 + 185 = 0

k - 13 = 0

k = 13

5 0

3 years ago

PLEASE HELP<br> what is the value of x in the diagram?<br> a. 15<br> b. 5 2/5<br> c. 19<br> d. 3/5

vichka [17]

I'm pretty sure the answer is A) 15 I could be wrong though

5 0

3 years ago

Read 2 more answers

Finding Hypotenuse Lengths. Find the length of the hypotenuse.

ioda

Answer:

11) $\frac{3\sqrt{5}}{2}$

12) $4\sqrt{5}$

13) $22$

14) $18$

15) $2$

16) $24\sqrt{3}$

Step-by-step explanation:

For these problems I used the pythagorean theorem: $a^{2}+ b^{2}= c^{2}$ and SOHCAHTOA

Sin = $\frac{opposite}{hypotenuse}$

Cos = $\frac{adjacent}{hypotenuse}$

Tan = $\frac{opposite}{hypotenuse}$

11)

First find the length of the bottom side by using Cos

$cos(60)=\frac{x}{3}$

$3(cos(60))=x$

$1.5=x$

Then plug it into the formula for the pythagorean theorem to find the hypotenuse

$3^{2}+ 1.5^{2}= c^{2}$

$9+2.25=c^{2}$

$\sqrt{11.25}=\sqrt{c^{2}}$

$\frac{3\sqrt{5}}{2}$

12)

Find the length of the bottom side using Cos

$cos(60)=\frac{x}{8}$

$8(cos(60))=x$

$4=x$

Then plug it into the formula for the pythagorean theorem to find the hypotenuse

$8^{2}+ 4^{2}= c^{2}$

$64+16=c^{2}$

$\sqrt{80} =\sqrt{c^{2} }$

$4\sqrt{5}$

13)

Find the length of the other side by using Tan

$tan(30)=\frac{x}{11\sqrt{3} }$

$11\sqrt{3}* (tan(30)=x$

$11=x$

Then plug it into the formula for the pythagorean theorem to find the hypotenuse

$(11\sqrt{3}) ^{2}+ 11^{2}= c^{2}$

$363+121=c^{2}$

$\sqrt{484} =\sqrt{c^{2}}$

$22$

14)

(This is probably an easier way to do these problems)

Find the hypotenuse by using Cos ( $\frac{adjacent}{hypotenuse}$ )

$cos(60)=\frac{9}{x}$

$cos(60)x=9$

$x=\frac{9}{cos(60)}$

$x=18$

15)

Find the hypotenuse using Sin ( $\frac{opposite}{hypotenuse}$ )

$sin(30)=\frac{1}{x}$

$sin(30)x=1\\x=\frac{1}{sin(x)}$

$x=2$

16)

Find the hypotenuse using Cos ( $\frac{adjacent}{hypotenuse}$ )

$cos(60)=\frac{12\sqrt{3} }{x}$

$cos(60)x=12\sqrt{3}$

$x=\frac{12\sqrt{3} }{cos(60)}$

$x=24\sqrt{3}$

5 0

4 years ago

Please answer ASAP!!<br> how do you find the volume of this slanted cylinder?

slava [35]

<h2><u>Oblique Cylinder</u></h2>

<h3>how do you find the volume of this slanted cylinder?</h3>

<u>Given:</u>

Height - 8 yd
Radius - 3 yd

To find the volume of an oblique cylinder, use the formula V = πr²h where,

V - Volume
π - Pi (3.14 is the value)
R - Radius
H - Height

We can substitute the given values to the formula.

V = πr²h
V = (3.14)(3²)(8)
V = (3.14)(9)(8)
V = (3.14)(72)
V = 226.08

<u>Answer:</u>

The volume of the oblique cylinder is <u>226.08 cm³</u>.

Wxndy~~

6 0

2 years ago