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SIZIF [17.4K]
3 years ago
6

Y=7 X=2 what is the value of x when y =21

Mathematics
2 answers:
dimaraw [331]3 years ago
6 0

Answer:

6

Step-by-step explanation:

y times 3 equals 21 because 7 times 3 equals 21 so:

x times 3 equals 6 because 2 times 3 equals 6

lara [203]3 years ago
3 0

Step-by-step explanation:

x might equal 6 because 21 divided by 7 is 3 so u multiply 3 by 2. You get 6. i think x equals 6. Hope this is right and hope this helped!

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Elizabeth wants to use a sheet of fiberboard 27 inches long to create a skateboard ramp with a 17^{\circ}
erma4kov [3.2K]

The height of the ramp above the ground from its highest end is 7.9 inches.

<h3>What is height?</h3>

Height is the vertical distance between two points.

To calculate the height of the ramp above the ground, we use the formula below.

Formula:

  • h = Lsin∅............. Equation 1

Where:

  • h = Height of the ramp above the ground
  • L = Length of the fiberboard
  • ∅ = Angle of elevation from the ground

From the question,

Given:

  • L = 27 inches
  • ∅ = 17°

Substitute these values into equation 1

  • h = 27×sin17°
  • h = 7.89
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Hence, the height of the ramp above the ground is 7.9 inches.

Learn more about height here: brainly.com/question/23144757

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3 0
1 year ago
Find the average of$ 1148.37,$1760.44,$1143.57,and 1336.17 then round to the nearest cent
schepotkina [342]
If you total them it equals $5388.55. and then divide by 4 and the average is 1347.1375 and the you round to nearest cent. $1347.14
3 0
3 years ago
Make sure to SHOW WORK
attashe74 [19]
9/4=2.25
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7 0
3 years ago
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Complete the sentence below. A function f is​ _____ on an open interval I​ if, for any choice of x1 and x2 in​ I, with x1less th
mojhsa [17]

Answer:

Increasing if f' >0 and decreasing if f'<0

Step-by-step explanation:

Difference quotient got by getting

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Here h is a small positive value.

In other words, we find that whenever first derivative of a function f(x) is positive the function is increasing.

Here given that for x1, x2 where x1<x2, we have

if f(x1) <f(x2) then the function is decreasing.

Or if x1<x2 and if f(x1) >f(x2) for all x1, and x2 in I the open interval we say f(x) is decreasing in I.

5 0
3 years ago
Which of the following shows a circle circumscribed about a triangle?
Dima020 [189]

Answer: The first option.

Step-by-step explanation:

1. By definition,  when a circle circumscribed about a triangle it passes through all the vertices of that triangle (As you know, a triangle has three vertices).

2. As you can see in the figure attached, the only circle that passes through three vertices of the triangle is the the circle of the first optin. Therefore, you can conclude that that circle is circumscribed about the triangle.

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