2 years ago

Can someone help me with this ASAP please?

Mathematics

1 answer:

svetoff [14.1K]2 years ago

8 0

Answer:

x=-1 y=1/2

Step-by-step explanation:

do you need the step by step?

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On a coordinate plane, a line goes through points (negative 4, 0) and (0, 4.5).

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-4 is the x intercept.as in the values on the x-axis

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3 years ago

A sample of n = 5 scores has a mean of m = 8. one new score is added to the sample and the new mean is calculated to be m = 9. w

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If the 5 scores have a mean of 8, then their total sum would be 8*5 = 40

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Line a is parallel to line b, m∠1=2x +44, and m∠5x+38. Find the value of x.

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2 years ago

assume that 2000 births are randomly selected and 64 of the births are girls. use subjective judgment to describe the number of

tatuchka [14]

Total no. of births = 2000

Births of girls = 64

Birth% of girls

$= \frac{64}{2000} \times 100$

$= \frac{64}{20}$

$= \frac{6.4}{2}$

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2 years ago

A certain forest covers an area of 4600km. Suppose that each year this area decreases by 7.75%. What will the area be after 13 y

wolverine [178]

Answer:

$1679.60\ km^2$

Step-by-step explanation:

-We can use the exponential decay function to estimate the size after 13 years:

$P_t=P_oe^{-rt}$

Where:

$P_t$ is the size after t years, t is the time, r is the rate of decay and $P_o$ the original size.

#We substitute and calculate as:

$P_t=P_oe^{-rt}\\\\=4600e^{-13\times 0.0775}\\\\=1679.60$

Hence, the forest covers $1679.60\ km^2$ after 13 years.

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2 years ago