Evaluate z + z + z for x = 2, y = -3, z = -4.
Answers
" z + z + z " is just 3z and doesn't depend on 'x' or 'y'.
If z=-4, then (z + z + z) = 3z = -12.
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Solve the given system using your choice of either graphically or algebraically. Show and explain all work. y = 3x + 2 y = -2x + 7like i dont get what to do like whats the steps and how did you get those numbers for the steps
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Write 8/4 as a mixed number. how did you come to your answer
y=2x+8
substitution method
Answers
Answer:
No Solution.
Step-by-step explanation:
2(x-1)-y=-8
y=2x+8
----------------
2x-2-(2x+8)=-8
2x-2-2x-8=-8
2x-2x-2-8=-8
0-2-8=-8
-2-8=-8
-10=-8
no solution
these are the last one no more questions! 30 points
Answers
For 26 I got a7b5.
For 27 I got 4.2×10(6 indices)
and For 34 I got √7
So I would go with these since I got the same answers and I cant open the 5th one, try sending it to me! :)
Answers
Noting that point in the form (x, y)
(-1, 6) and (7, a) . x1 = -1, y1 = 6, x2 = 7, y2 = a
Gradient , m = (y2- y1) / (x2 - x1). m =6.
Substituting:
6 = (a - 6) / (7 - -1)
6 = (a -6) / (7+1)
6 = (a -6) /8 Cross Multiplying
48 = a -6.
48 +6 = a.
54 = a.
Therefore a = 54.
I hope this helps.
Answers
let's call then x and y
we know that 2(x+y)=12.5 (that's the distance around)
so that means that x+y=6.25 (I just divided both by 2)
now, x=4y (from "4 times as long as it is wide")
so we can substitute:
x+4x=6.25
5x=6.25
x=1.25
so one side, is 1.25 and the other will be 1.25*4=5
and for the area we multiply the two:
1.25*5=6.25 square kilometers, and this is the answer!
The Area of the park is 6.25 square kilometers.
- Let the wide = X
- The length = 4X (the length is 4 times long as it is wide)
Further Explanation
Therefore, we should have:
To determine the perimeter of the rectangle = 2 x (length + wide)
P = 2 (L + W)
P = 2L + 2W
Recall the distance around the park is 12.5,
Hence,
= 12.5 = 2 (4x) + 2 (x)
= 12.5 = 8x + 2x
= 12.5 = 10x
X =
X = 1.25
To determine the area, the formula for area is (A = W x L)
A = X x (4X)
A =
A = 4 x
A = 4 x (1.25 x 1.25)
A = 4 x 1.5625
A = 6.25 square kilometers
Thus, the area of the park is 6.25 square kilometers.
LEARN MORE:
- A park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park brainly.com/question/768779
- A park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park brainly.com/question/286278
KEYWORDS:
- square kilometers
- a park is 4 times
- wide
- area of a rectangle
- perimeter of a rectangle
- area of the park
5x+____y=2
____x+3y=8
Answers
Write it in the y=mx+b form.
The system will be inconsistent when the equations describe two parallel lines.
Two lines are parallel when their slopes are identical.
Also they can't be the same line, so the y-intercepts must be different.
So for every value of a and b such that ab=15 and a≠3/2 this system of equations is inconsisent.
It can be:
or
or
etc.
Answers
Bertie needs 12 1/4 cups of flour to make 3 1/2 pans of biscuits.
What is multiplication?
The basic idea of multiplication is repeated addition. But as well as multiplying by whole numbers, we can also multiply by fractions, decimals and more.
Given that, Bertie needs 2 1/3 cups of flour for each pan of biscuits she bakes. She wants to bake 3 1/2 pans of biscuits.
Since, 1 pan needs 2 1/3 cup of flour.
So, for 3 1/2 pans = 3 1/2 × 2 1/3
= 7/2 × 7/2
= 49/4
= 12 1/4
Hence Bertie needs 12 1/4 cups of flour to make 3 1/2 pans of biscuits.
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