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3 years ago

6

What is 23+41-7×398-15

1 answer:

Dimas [21]3 years ago

6 0

This question is just a type of question that you honestly just need to punch into a calculator. However, if you just do a simple one-over-one addition of 23 and 41, then subtract, it gets even easier. Then, do another one-over-one but this time as subtraction when you take away the 7. Then you will do yet another one-over-one but for multiplication with your sum of your numbers after subtraction. Finally, do another one-over-one to get your final answer of 22,671. I will attach a picture of what this looks like as well as an illustrated one-over-one. Hope this helped!

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The measure of an angle is five times the measure of its complementary angle. What is the measure of each angle?

GalinKa [24]

Answer:

150 degrees

Step-by-step explanation:

Let the supplement = x
So the angle you want is 5x
Then [x + 5x] = 180 because they are supplementary.
Solving. 6x = 180. Then x = 30.
So the angle is 5x = 5×30 = 150 degrees

3 0

2 years ago

Find the equation of the line through point (-5,5) and perpendicular to y = 5/9x - 4

tankabanditka [31]

Answer:

$9x+5y=-20$

Step-by-step explanation:

$y = \frac{5}{9} x - 4$

compare with that y=mx+c

where m=slope .

So after comparing we get m= $\frac{5}{9}$

As the lines are perpendicular

$m1*m2=\ -1$

$m2 \ =\ \frac{-1}{m1}$

therefore m2= $\frac{-9}{5}$

Now from the equation

$y - b = m(x - a )$ this equation passing to the point (-5,5) with m= $\frac{-9}{5}$

$y-5=\frac{-9}{5} (x+5)\\5y-25=-9x\ -45\\9x+5y=-20$

Therefore equation is

$9x+5y=-20$

7 0

3 years ago

Can someone please help me?

Aneli [31]

Answer:

A

Step-by-step explanation:

to find the inverse, there are two steps

1-interchange x and y

2-solve for y

so y=x+1/x

interchange to get x=y+1/y

and solving for y we multiply both sides by y to get xy=y+1

subtract both sides by y yielding xy-y=1

factor out y to get y(x-1)=1

then divide to get y=1/x-1

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2 years ago

Help help helppppppppp

Yanka [14]

Geometry

You need to find the area of the square first.

8x8=64un^2

Then you must find the area for the four triangles.

8x6=42un^2

42un^2/2=21un^2

Then multiply this by four to find the area of all the triangles.

21un^2x4=84un^2

Then add the areas of the triangles and squares.

84un^2+64un^2=148un^2

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2 years ago

Alexa is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Alexa will earn $

AVprozaik [17]

Answer:

20c +110m = 340; c + m = 8

Step-by-step explanation:

Let c and m represent the number of commercials and movies playing Alexa's songs, respectively.

20c +110m = 340 . . . . . total royalties earned

c + m = 8 . . . . . . . . . . . . total number of plays

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Alexa's songs were played in 6 commercials and 2 movies.

8 0

2 years ago