If z = -7, what is the value of (-8z) - z?
Answers
Answer:
63
Step-by-step explanation:
you will plug in -7 for both z's
(-8(-7) - (-7)
following PEMDAS you will do multiplication first
(-8(-7) = 56
now we have 56 - (-7)
since - and - make a positive it will be
56 + 7 = 63
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Prove the following theorem indirectly. We will give you a start. Prove that a triangle cannot have two right angles. A triangle cannot have two right angles. Suppose a triangle had two right angles.
Brian invested his savings in two investment funds. The $8000 that he invested in Fund A returned a 4% profit. The amount that he invested in Fund B returned a 1% profit. How much did he invest in Fund B, if both funds together returned a 2% profit?
Answers
The correct answer is:
Focal point.
Explanation:
The focal point of a lens is the point in space where parallel light rays meet after they pass through the lens. A perfect" lens sends all light rays through one focal point, which result in the clearest image.
Answers
Answer:
1st, 2nd and 6th options
Step-by-step explanation:
Given
- x +
= 6x ( multiply through by 6 to clear the fractions )
4 - 6x + 1 = 36x ← option 1 will have the same solution set
----------------------------------------------------------------------
Adding the 2 fractions on the left side gives
+
- x = 6x , that is
- x = 6x ← option 2 will have the same solution set
------------------------------------------------------------------------
From
4 - 6x + 1 = 36x ( add 6x to both sides )
5 = 42x ← option 6 will have the same solution set
-21, - 13, -5, 3, ...
Find a23
Answers
a(n)=a(1)+(n-1)×d
a(23)=-21+(23-1)×8
a(23)=-21+(22)×8
a(23)=-21+176
a(23)=155
And we're done....
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5x2 + 18x − 2
5x2 + 13x + 2
5x2 − 18x − 8
5x2 + 13x + 8
Answers
Rectangle shape.
One side: 5x + 2
other side: x - 4
Area = length * width
Area = (5x+2)(x-4)
A = 5x(x-4) +2(x-4)
A = 5x² - 20x + 2x - 8
A = 5x² - 18x - 8
The polynomial expression that represents the area of the rectangle is: C. 5x² - 18x - 8
What is the Area of a Rectangle?
Area = (length)(width)
Given the dimensions of the rectangle as:
- Length = 5x + 2
- Width = x - 4
Area of the rectangle = (5x + 2)(x - 4)
5x(x - 4) + 2(x - 4)
5x² - 20x + 2x - 8
Add like terms together
5x² - 18x - 8
Learn more about area of a rectangle on:
#SPJ5
Answers
Answer:
21.24cm
Radius is 2.6 and we know formula of a circle is pi times radius squared so radius squared is 6.76 and we multiply that by pi giving us 21.24cm
Answers
0 = 4x - 2, x = 1/2
Second, solve for the y - intercept. Equate x to 0 which will give us,
y = (4)(0) -2, y = -2
Therefore, the x-intercept is 1/2 and y-intercept is -2.