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Stels [109]
3 years ago
9

2x−y=5 If x=4, then y=

Mathematics
1 answer:
jeka943 years ago
4 0

Answer:

Y = 3

Step-by-step explanation:

2(4) = 8

Subtract 8 on both sides

-y = -3

Y=3

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Enzo is studying the black bear population at a large national park.
Naddik [55]

Answer:

2,973

Step-by-step explanation:

The black bear population B(t), in the park is modeled by the following function:

B(t) = 2500 \cdot 2^{0.01t}

Where t is the time(in years) elapsed since the beginning of the study.

We want to determine the black bear population in 25 years time, t=25.

B(25) = 2500 \cdot 2^{0.01*25}\\=2973.02\\\approx 2973

There will be 2,973 black bears in 25 years time.

4 0
3 years ago
How to answer this? TvT
ASHA 777 [7]
Since the midpoint lies on the axis, both ends are therefore equidistant from the axis and are mirrors of each other so..

Q = (4,9)
8 0
3 years ago
Find the intercept of the line -2x+5y=7
jeka57 [31]
Y intercept = 7/-2 or -3.5
5 0
3 years ago
Out of 30 questions Ahmad answers 12 of them incorrectly.what percent of the questions did he correctly
12345 [234]
(12/30)x100 is 40%
This is percent of incorrect answers. The total percent must be 100% so subtract 100-40=60%.
60% answers were answered correctly.
5 0
3 years ago
Read 2 more answers
A sample proportion of 0.36 is found. To determine the margin of error for this statistic, a simulation of 100 trials is run, ea
Reika [66]

Answer:

(0.30, 0.42)

Step-by-step explanation:

Given the sample proportion is = 0.36

Number of trials required for determining the margin of the error = 100

Sample size, n = 50

The point estimate = 0.36

The minimum sample proportion form the simulation = 0.28

The maximum sample proportion from the simulation = 0.40

Also the margin of the error of population proportion is found by using the half of the range.

Therefore, the interval estimate for the true population proportion is = (0.30, 0.42)

4 0
3 years ago
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