Answer:
40cm^2
Step-by-step explanation:
Ik Im right
Answer:
<u>The correct answer is A. 22 inches ³</u>
Step-by-step explanation:
Let's recall that the formula of the volume of a triangular pyramid:
Volume = 1/3 * Area of the base * height
Replacing with the values we have:
Volume = 1/3 * 11 inches² * 6 inches
Volume = 66/3
Volume = 22 inches ³
<u>The correct answer is A. 22 inches ³</u>
Answer:
Line B
Step-by-step explanation:
Answer:
Step-by-step explanation:
y
=
−
5
+
10
x
3
y
=
-
5
+
10
x
3
Rewrite in slope-intercept form.
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y
=
10
3
x
−
5
y
=
10
3
x
-
5
Use the slope-intercept form to find the slope and y-intercept.
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Slope:
10
3
10
3
y-intercept:
−
5
-
5
Any line can be graphed using two points. Select two
x
x
values, and plug them into the equation to find the corresponding
y
y
values.
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x
y
0
−
5
3
5
x y 0 -5 3 5
Graph the line using the slope and the y-intercept, or the points.
Slope:
10
3
10
3
y-intercept:
−
5
-
5
x
y
0
−
5
3
5
x y 0 -5 3 5
image of graph
Let a and b = the numbers we must find.
a + 2b = 5.....Equation A
2a + b = 13.......Equation B
We have a system of equations in two variables.
I will solve A for little a.
a + 2b = 5
a = 5 - 2b
Now I will plug 5 - 2b for a in B.
2(5 - 2b) + b = 13
10 - 4b + b = 13
-3b = 3
b = -1
To find a, replace b with -1 in EITHER A or B.
I will use Equation A.
a + 2b = 5
a + 2(-1) = 5
a - 2 = 5
a = 7
The two numbers are -1 and 7.
Understand?
