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3 years ago

Help me please........

Mathematics

1 answer:

Kitty [74]3 years ago

8 0

Answer:

0.66666666667

Step-by-step explanation:

funny brainliest?

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The heights of 20-year-old females are normally distributed with a mean of 64 inches and a standard deviation of 2 inches. What

natali 33 [55]

Answer: z= -1

Step-by-step explanation: z= (62-64)/2 = -1

5 0

3 years ago

Read 2 more answers

The city of Anvil is currently home to 21000 people, and the population has been growing at a continuous rate of 4% per year. Th

Yanka [14]

Answer:

They'll reach the same population in approximately 113.24 years.

Step-by-step explanation:

Since both population grows at an exponential rate, then their population over the years can be found as:

$\text{population}(t) = \text{population}(0)*(1 + \frac{r}{100})^t$

For the city of Anvil:

$\text{population anvil}(t) = 21000*(1.04)^t$

For the city of Brinker:

$\text{population brinker}(t) = 7000*(1.05)^t$

We need to find the value of "t" that satisfies:

$\text{population brinker}(t) = \text{population anvil}(t)\\21000*(1.04)^t = 7000*(1.05)^t\\ln[21000*(1.04)^t] = ln[7000*(1.05)^t]\\ln(21000) + t*ln(1.04) = ln(7000) + t*ln(1.05)\\9.952 + t*0.039 = 8.8536 + t*0.0487\\t*0.0487 - t*0.039 = 9.952 - 8.8536\\t*0.0097 = 1.0984\\t = \frac{1.0984}{0.0097}\\t = 113.24$

They'll reach the same population in approximately 113.24 years.

4 0

3 years ago

f^3+11g-4hf 3 +11g−4hf, cubed, plus, 11, g, minus, 4, h when f=3f=3f, equals, 3, g=2g=2g, equals, 2 and h=7h=7h, equals, 7.

Alik [6]

Given:

The expression is:

$f^3+11g-4h$

The given values are $f=3,\ g=2,\ h=7$ .

To find:

The value of the given expression for the given values.

Solution:

We have,

$f^3+11g-4h$

After substituting $f=3,\ g=2,\ h=7$ , we get

$f^3+11g-4h=(3)^3+11(2)-4(7)$

$f^3+11g-4h=27+22-28$

$f^3+11g-4h=49-28$

$f^3+11g-4h=21$

Therefore, the value of the given expression is 21.

8 0

3 years ago

Solve the following equation-8=(10x-22)/11

Evgen [1.6K]

-8 = (10x - 22)/11

Multiply both sides by 11:
-88 = 10x - 22

Add 22 to both sides:
-66 = 10x

Divide both sides by 10
-6.6 = x

Hope it helped :)

6 0

3 years ago

Can someone please help? (Year 9 Math) This question is on fractions. Please see picture attached (ex. 2a and b) please show met

Ierofanga [76]

for 2a, use the theorems of geometry and such to look at the area of the square as 16 squares total, then use the lengths and Sim/cos rule for the triangular area, then subtract and you have you shaded area.

8 0

3 years ago