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ZanzabumX [31]
3 years ago
7

(05.03)

Mathematics
1 answer:
Airida [17]3 years ago
6 0

Answer:

Initial value: 12, rate of change: -2

Step-by-step explanation:

The rate of change is given by change in the y-values over change in x-values.

There is a constant change of -2 in y-values.

There is also a constant change of 1 in the x-values.

The rate of change is -2

The initial value is when x=0,

So we go back one step, and that will give us (0,12)

Therefore the initial value is 12.

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Which of these is a simplified form of the equation 10y + 2 = 19 + 3y + 2y? (5 points)
tangare [24]

Answer:

D

10y-3y-2y=19-2

5y=17

So the answer is ' d '

4 0
3 years ago
Kayla wants to find the width, AB, of a river. She walks along the edge of the river 65 ft and marks point C. Then she walks 25
AlladinOne [14]

Answer:

Part A) The triangles ABC and EDC are similar by AAA, because the three internal angles are equal in both triangles

Part B) The width of the river is about 39\ ft

Step-by-step explanation:

we know that

If two triangles are similar, then the ratio of its corresponding sides is equal and its corresponding angles are congruent

Part A) we know that

In this problem , triangles ABC and CDE are similar by AAA, because its corresponding angles are congruent

so

m<DCE=m<ACB -----> by vertical angles  

m<EDC=m<ABC -----> is a right angle

m<DEC=m<CAB -----> the sum of the internal angles must be equal to 180 degrees

Part B) we know that

The triangles ABC and EDC are similar -------> see Part A

therefore

\frac{BC}{DC}=\frac{AB}{DE}

substitute the values and solve for AB

\frac{65}{25}=\frac{AB}{15}

AB=15*(\frac{65}{25})=39\ ft

8 0
3 years ago
Out of sample of 500 people, 25% exercise daily. What is the confidence interval for the population mean of people that exercise
Scorpion4ik [409]

Answer:

The answer is C

Step-by-step explanation:

Its correct

7 0
3 years ago
There's a room, the height is 12, length is 14, and width is 10. What is the total area of the 4 walls?
Scorpion4ik [409]

Answer:

Hello Everybody Love Pizza

Step-by-step explanation:

7 0
3 years ago
Solve 3(x-4)=-5 for x. Justify each step
igor_vitrenko [27]
3x - 12 = -5 plus 12
3x-12 +12 = -5+12
3x = 7 devision by 3
3x/3 = 7/3
x= 2,3333333333 =~ 2,3
4 0
3 years ago
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