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3 years ago

What is the value of the expression 6n when 7=n

Mathematics

1 answer:

boyakko [2]3 years ago

6 0

42. 6 * 7 = 42. just plug in 7 where n would be

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4x+5y=-6<br><br> Find the slope

kipiarov [429]

Answer:

$-\frac{4}{5}$

Step-by-step explanation:

4x+5y=-6

the goal is to get y on one side and everything else on the other side

step 1 subtract 4x from each side

4x-4x cancels out

now we have

5y=-4x-6

step 2 divide each side by 5

5/5 cancels out

now we have

$y=\frac{-4}{5}x + \frac{6}{5}$

we can conclude that the slope is

$-\frac{4}{5}$

hope this helps :)

5 0

3 years ago

How is the area of a semicircle found?

fenix001 [56]

Answer:

(A) Take half the area of the whole circle.

Step-by-step explanation:

A semi-circle is half of a circle, thus the area of circle is given by:'

Area of circle= ${\pi}r^2$ , where r is the radius of the circle.

Since, A semi-circle is half of a circle, therefore area of the semi circle is also half of the circle, therefore

Area of semi circle= $\frac{{\pi}r^{2}}{2}$

Thus, the area of the semi circle can be found by taking half the area of the whole circle.

5 0

4 years ago

State whether the following sentences are true or false.

Usimov [2.4K]

1 is false, 2 is true, and 3 may be false because the corresponding angles have to be equal and the corresponding sides be proportional. So I don’t know about 3 but 1 and 2 I’m sure of

3 0

3 years ago

A rectangular exercise has a perimeter of 36 week the length of the mat is twice the width it right and solve and equation to de

xxTIMURxx [149]

Answer:

Part a) The length of the rectangle is $12\ ft$

Part b) The area of rectangle is $72\ ft^{2}$

Step-by-step explanation:

step 1

Find the length

Let

L-----> the length of the rectangle

W---> the width of the rectangle

we know that

The perimeter of rectangle is

$P=2(L+W)$

$P=36\ ft$

$36=2(L+W)$

$18=(L+W)$ ----> equation A

$L=2W$ -----> equation B

substitute equation B in equation A

$18=(2W+W)$

solve for W

$18=3W$

$W=18/3=6\ ft$

Find the value of L

$L=2(6)=12\ ft$

step 2

Find the area

The area of rectangle is equal to

$A=LW$

substitute the values

$A=(12)(6)=72\ ft^{2}$

8 0

3 years ago

The point-slope form of a line is y - y1 = m(x-x1), where m is the slope and (x1,

Vlada [557]

Answer

False

FalseThe correct point slope form passing through points (x1,y1) is (y-y1)=m (x-x1)(y−y1)=m(x−x1)

4 0

3 years ago