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2 years ago

10

Please help asap 30 pts

2 answers:

Vika [28.1K]2 years ago

8 0

7x > -35 |divide both sides by 7

x > -5

---------------------

3x ≤ 30 |divide both sides by 3

x ≤ 10

-5 < x ≤ 10

Answer: b.

frozen [14]2 years ago

3 0

My answer is (b)
I got like that

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For the table below, determine the function rule, and find each of the missing y-values.

anygoal [31]

The answer is 8 and 13

<span>
y = ax + b
y = 4, x = 1 </span>⇒ 4 = a + b
y = 6, x = 3 ⇒ 6 = 3a + b

Solve the system of equation:
a + b = 4
3a + b = 6
______
b = 4 - a
3a + b = 6
______
3a + 4 - a = 6
2a + 4 = 6
2a = 6 - 4
2a = 2
a = 2/2 = 1
b = 4 - a = 4 - 1 = 3

So, the function rule is: y = x + 3

Thus, if x = 7, then y = 7 + 3 = 10
If x = 10, then y = 10 + 3 = 13

x y
1 4
3 6
4 7
5 8
7 10
10 13

6 0

2 years ago

Circle towns limit form a perfectly circular shape that has a population of 20000 in the population density of 480 people per sq

Alex

Answer:

$D =\frac{P}{\pi X^2}$

And solving for the radius we got:

$X = \sqrt{\frac{P}{\pi D}}$

And replacing the data given we got:

$X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km$

And this value converted to meters is $X = 87.40 m$

Step-by-step explanation:

For this case we know the population size $P = 20000$ and we also know the population density $D = 480 \frac{people}{km^2}$

We can assume that the area is a circle. We also know that the formula for the population density is given by:

$D= \frac{P}{A}$

Where P represent the number of people and A the area. Since we are assuming a circle then the area is given by:

$A = \pi X^2$

With X the radius of the circle

And then the populationd density become:

$D =\frac{P}{\pi X^2}$

And solving for the radius we got:

$X = \sqrt{\frac{P}{\pi D}}$

And replacing the data given we got:

$X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km$

And this value converted to meters is $X = 87.40 m$

6 0

3 years ago

If a sample of 58 runners were taken from a population of 302 runners

Scrat [10]

Answer:

302

Step-by-step explanation:

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2 years ago

A storage tank has a radius of x + 5 metres and a height of x metres. Determine the dimensions of the tank if the volume is 192π

Anastaziya [24]

Answer:

that is the procedure above

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2 years ago

what happens to the value of the expression 5/x + 5 as x decreases froma large positive number to a small positive number

agasfer [191]

Answer:

The value increases

Step-by-step explanation:

the smaller the divisor, the larger the quotient.

7 0

2 years ago