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alexandr402 [8]
2 years ago
14

Use the temperature data shown in the table below.

Mathematics
2 answers:
umka2103 [35]2 years ago
7 0

Answer:

A

Step-by-step explanation:

There is no way it is an increase

only one is decrease so it is the answer

because 56 to 43 is a decrease

dem82 [27]2 years ago
5 0
The answer is A decrease of 13 degrees
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A small backyard measures 45 feet on one side. The other side measures h+ 20 feet. How many feet around is the yard?
Kryger [21]
The answer is 25 feet
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3 years ago
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What is the solution to the system? 1. x-y + 2 z = -7<br> 2. y + z =1<br> 3. x-2 y - 3 z = 0
kvv77 [185]

You'd find this problem easier to understand and do if you'd please list the defining equations vertically and line up variables:

1. x - 1y + 2 z = -7

2. y + 1z = 1

3. x - 2 y - 3 z = 0 Now eliminate the line numbers:

x - 1y + 2 z = -7

1y + 1 z = 1

x - 2 y - 3 z = 0

Let's use the elimination method to eliminate variable z: Seeing that z = 1 - y, we transform the first equation into 1x - 1y + 2(1-y) = -7

and the third into x - 2y - 3(1-y) = 0.

Simplifying 1x - 1y + 2(1-y) = -7

and x - 2y - 3(1-y) = 0,

we get

1x - 2y - 3 + 3y) = 0 and 1x - 1y + 2 - 2y = -7

which in turn simplify to

1x + y = 3 and 1x - 3y = -9

Having eliminated the variable z, we now focus on eliminating x. Mult. the 1st equation by -1, obtaining -1x - 1y = -3. Add this result to 1x - 3y = -9:

0 - 4y = -12, which tells us that y = 3. Subbing 3 for y in 1x + 1y = 3 tells us that x = 0.

All we have left to determine is the vaue of z.

Borrowing Equation 3, from above, we get x - 2 y - 3 z = 0, and into this equation we substitute x = 0 and y = 3: 0 -2(3) - 3z = 0.

Thus, -3z = 6, and z = -2.

The solution set is (0, 3, -2). You should check this by substitution.

3 0
3 years ago
I need Help with this question up top!
d1i1m1o1n [39]
The answer is A hope this helped
7 0
2 years ago
Yosef can eat 21 jamuns while Rose can eat just 15.
Gennadij [26K]

Answer:

40%

Step-by-step explanation:

1+.40=1.4

1.4 x 15 = 21

7 0
3 years ago
If f(x) = 5x - 3 and g(x) = 2x + 9, determine<br> f(g(4)
Over [174]

Answer:

82

Step-by-step explanation:

f(x) = 5x - 3

g(x) = 2x + 9

f(g(x)) = 5 (2x + 9) - 3 ..... replace x with g(x)

f(g(4)) = 5 * (2 * 4 + 9) -3 = 85 - 3 = 82

5 0
3 years ago
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