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3 years ago

Two numbers that are ten units from zero

Mathematics

2 answers:

fiasKO [112]3 years ago

4 0

Answer:

10 and -10

Step-by-step explanation:

10 and -10

erastova [34]3 years ago

3 0

Ten and negative ten

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Eight homerooms in a middle school had the following distribution of students.

balandron [24]

Answer:

C. 2.25

Step-by-step explanation:

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3 years ago

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Helpppppppppppppppppppppp!!!!!!! Plzzzzzzzzzzzzzzz

diamong [38]

Step-by-step explanation:

The sum of the interior angles of a triangle is equal to 180° so we can write

$y + 2y + 3y = 180° \Rightarrow 6y = 180°$

Solving for y, we get

$y = 30°$

So the other two angles of the triangle are

$2y = 2(30°) = 60°$

and

$3y = 3(30°) =90°$

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3 years ago

Which function has the given properties below? the domain is the set of all real numbers. one x-intercept is (startfraction pi o

melomori [17]

The required function with maximum value 3 and x and y-intercepts π/2 and 3 respectively is y=-3cos(x)

<h3>What is a function?</h3>

A function is a rule that relates two variables.

Let us check the x-intercept, y-intercept, and maximum value for each function.

1)y =-3Sin(x)

for x-intercept put y=0

0 = -3Sin(x)

Sin(x) =0

x=0

for y-intercept put x=0

y=-3Sin0

y=0

The maximum value of the given function =the lower limit of the range of -3Sin(x) i.e. 3

Similarly, for y = -3cos(x)

x-intercept =π/2

y-intercept = 3

Maximum value of function = lower limit of the range of 3cos(x) i.e. 3

Therefore, the required function with maximum value 3 and x and y-intercepts π/2 and 3 respectively is y=-3cos(x)

To get more about functions visit:

brainly.com/question/17043948

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2 years ago

The width of a rectangle is (x+1) and the length is (x-6). What is the length and width of the rectangle if the area is 30 squar

jolli1 [7]

Answer:

The length of the rectangle (l) = 3 feet

The width of the rectangle (W) = 10 feet

Step-by-step explanation:

Step(i):-

Given that the width of the rectangle = (x+1) feet

Given that the length of the rectangle = ( x-6) feet

The area of the rectangle = 30 square feet

Step(ii):-

We know that the area of the rectangle

= length ×width

30 = ( x+1)(x-6)

30 = x² - 6x + x -6

⇒ x² - 5 x - 6 = 30

⇒ x² - 5 x - 6 - 30 =0

⇒ x² - 5 x - 36 =0

x² - 9 x +4x - 36 =0

x (x-9) +4 ( x-9) =0

( x+4 ) ( x-9) =0

( x+4 ) =0 and ( x-9) =0

x =-4 and x =9

Step(iii):-

we have to choose x =9

The length of the rectangle (l) = x-6 = 9-6 =3

The width of the rectangle (W) = x+1 = 9 +1 = 10

Final answer:-

The length of the rectangle (l) = 3 feet

The width of the rectangle (W) = 10 feet

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3 years ago

20 POINTS PLEASE HELP Write an equation for a trend line and predict the value when x is 15

stich3 [128]

Attached is what you can do on excel.

Add the values as presented on the image. Select the values and then go t the menu "Insert" and look for "Charts" and then "Insert scatter chart". After this, select one of the dots from the graph and then press the right button of the mouse and select "add trendline". Now you have a trend line. Format the trendline selecting the option "Display Equation on chart" (and also if you want "Display R-squared value on chart"). Now you have the equation and you can easily predict the value when X is 15, you just need to substitute on the equation the X by the 15:
y = 4.0933Χ + 21.5 <=> y = 82.8995

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3 years ago