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marishachu [46]

3 years ago

6

ASAP!! What is the parabola’s line of symmetry? y-axis x-axis x = p x = -p

1 answer:

Nat2105 [25]3 years ago

3 0

Answer:

y-axis

Step-by-step explanation:

..................

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A 14.5-gallon gasoline tank is 3/4 full. How many gallons will it take to fill the tank? Write your answer as a mixed number.

marta [7]

The answer is 3 5/8.

5 0

3 years ago

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How many people own a SUV?<br> A. 4<br> B. 42<br> C. 420<br> D. 4,200

MaRussiya [10]

For this, no math is even needed! The question says 1,000 people were interviewed. 42% percent of that 1,000 owns an SUV. If it's a percent, it is 42/100, right? Now we have to make that 42/100 out of 1000. We add a zero to the 100 on the bottom (42/1000). We do the same thing on the top. Add a zero! 420.

SECOND POSSIBLE SOLUTION
Solve this with logic! 42% is nearly 50%. Half of 1,000 is 500. What is closest to 500? 420! This solution is even easier.

Hope this helps you!

5 0

4 years ago

Rewrite the exponential expression 25^3/2as a radical expression-<br> plss helpp

Agata [3.3K]

Answer:

$\huge\boxed{\sqrt{25^{3}}}$

Step-by-step explanation:

When we have a number to a fraction power, we need to note that

It's the same as taking the denominator root of the base to the numerator power

Basically, for example, $5^{\frac{1}{2}}$ is the same as $\sqrt{5}$ since the numerator is 1 ( $5^1 = 5$ ) and the denominator is 2 ( $\sqrt{5}$ ).

Applying this same logic to $25^{\frac{3}{2}}$ -

$25^{3}$

$\sqrt{25^3}$

Hope this helped!

6 0

3 years ago

Read 2 more answers

Pleasantburg has a population growth model of P(t)=at2+bt+P0 where P0 is the initial population. Suppose that the future populat

yulyashka [42]

Answer:

The population will reach 34,200 in February of 2146.

Step-by-step explanation:

Population in t years after 2012 is given by:

$P(t) = 0.8t^{2} + 6t + 19000$

In what month and year will the population reach 34,200?

We have to find t for which P(t) = 34200. So

$P(t) = 0.8t^{2} + 6t + 19000$

$0.8t^{2} + 6t + 19000 = 34200$

$0.8t^{2} + 6t - 15200 = 0$

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this question:

$0.8t^{2} + 6t - 15200 = 0$

So $a = 0.8, b = 6, c = -15200$

Then

$\bigtriangleup = 6^{2} - 4*0.8*(-15100) = 48356$

$t_{1} = \frac{-6 + \sqrt{48356}}{2*0.8} = 134.14$

$t_{2} = \frac{-6 - \sqrt{48356}}{2*0.8} = -141.64$

We only take the positive value.

134 years after 2012.

.14 of an year is 0.14*365 = 51.1. The 51st day of a year happens in February.

So the population will reach 34,200 in February of 2146.

6 0

3 years ago

Help!!! ( look at picture)

eimsori [14]

Answer:

B

Step-by-step explanation:

The information on the graph is almost symmetrical, because the lines look almost the same length on both sides.

7 0

3 years ago

Read 2 more answers