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Troyanec [42]
3 years ago
9

1. If = 1, = −2 = −1 then find the value of the following

Mathematics
1 answer:
Mariana [72]3 years ago
5 0

Answer:

hope its helpful......

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What is x please help
NeTakaya
Your x will be -60 because you subtract 9x from 8x that equal-1 and you divide it by 60 because if you add 42+18 it will be 60 so you divide 60 by -1 and the answer will be -60
5 0
3 years ago
How do I prove that a quadrilateral is a rectangle? (in a Column chart with statement and reason)
klasskru [66]
By definition, we have to:

 In plane geometry, a rectangle is a parallelogram whose four sides are at right angles to each other. Opposite sides have the same length.

 There is a proof that a quadrilateral is a rectangle:

  1) Its parallel sides are the same.

 2) Its two diagonals are the same, and they bisect each other at the common midpoint

 3) Any rectangle can be inscribed in a circle, two of whose diameters coincide with the diagonals of the rectangle.

 4) If all the angles of a quadrilateral are right angles, then it is a rectangle
7 0
3 years ago
Find the volume of a pyramid with a square base, where the perimeter of the
lianna [129]

Answer:

42.7\,\,cubic\,\, meters

Step-by-step explanation:

Given: Perimeter of base of a pyramid = 12.8 m

Height of the pyramid = 12.5 m

To find: volume of a pyramid

Solution:

Perimeter of base of a pyramid = 12.8 m

As base of the pyramid is a square,

12.8 = 4(side\,\,of\,\,a\,\,square)

side of a square = \frac{12.8}{4}=3.2\,\,m

Area of a square (A) = (side\,\,of\,\,a\,\,square)^2=(3.2)^2=10.24\,\,m^2

Height of the pyramid (h) = 12.5 m

Volume of the pyramid = \frac{Ah}{3}=\frac{1}{3}(10.24)(12.5)=42.7\,\,cubic \,\,meters

6 0
3 years ago
Linda is training for a half marathon. she ran 3 1/3 miles on Monday 3.25 miles on Tuesday, and 2 1/2 miles on Wednesday. How ma
AnnyKZ [126]
Ok I don’t have any idea what I’m going out tomorrow if I don’t know want to do anything tomorrow I
7 0
3 years ago
Read 2 more answers
Write and equation of the line that passes through the point (2,4) and is perpendicular tothe line hows equation is 3y-6x+3
alina1380 [7]
First, you need to find the slope of this new line.
It is perpendicular to the given line, which means the slope of this line is the negative reciprocal of this given line, so we need to find out the slope of the equation 3y=6x+3 
divide each side by 3, you'll get y=2x+1, so we know the slope is 2, which is 2/1
the slope for the new line should be -1/2, the negative reciprocal of 1/2
Next, use point-slope format to write your equation. Your point is (2,4) and your slope is -1/2, so you have
(y-4)=-1/2(x-2)
If you want to simplify it: y-4=-1/2x+1 => y=(-1/2)x+5


5 0
3 years ago
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