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3 years ago

PLEASE HELP if Suzy can drive 4/5 miles in a half hour how many miles can she drive in 1 hour FOR A TEST PLEASE ANSWER

1 answer:

5 0

Since you are trying to figure out how many miles she can drive in 1 hour and you already have half of that hour, all you would need to do is double that number.
$\frac{4}{5}$ × $\frac{2}{1}$ = $\frac{8}{5}$

Now, all you would need to do is simplify the answer.
$\frac{8}{5}$ = 1 $\frac{3}{5}$ or 1.6

The answer would be, Suzy can drive 1 $\frac{3}{5}$ or 1.6 miles in 1 hour.

I hope this helps!

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A rectangular sign measures 8 m by 6.5 m. One litre of paint covers 14 square meters. How many litres of paint are needed to pai

Harlamova29_29 [7]

Answer:

7.4

Step-by-step explanation:

find the area of rectangular sign8times6.5)=52,take if 1l=14m^2 what about 52 then multiply by 2

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3 years ago

A sheriff is interested in the average speed that people drive on Highway 50. Match the vocabulary word with its corresponding e

aleksandr82 [10.1K]

Answer:

1. Statistics

2. Sample

3. Population

4. Variable

5. Data

6. Parameter

Step-by-step explanation:

1. Statistics is the mean of the sample taken - The average speed that the 250 randomly selected drivers drove on Highway 50

2. Sample is the representative part of the population - The 250 randomly selected drivers who were on Highway 50

3. Population is the group of people from which the sample was taken - All people who drive on Highway 50

4. Variable is a quantity that has values which differ - The speed that a driver drives on Highway

5. Data is information obtained used for a specific purpose - The list of the 250 speeds that the drivers studied drove

6. Parameter is the mean of a population - The average speed that all drivers go on Highway 50

4 0

3 years ago

A rowing team rowing with the current traveled 36 km in 3 h. Rowing against the current, the team rowed 12 km in the same amount

alex41 [277]

Answer:

team: 8 kph
current: 4 kph

Step-by-step explanation:

The downstream speed is ...

speed = distance / time

speed = 36 km/(3 h) = 12 km/h

The upstream speed is ...

12 km/(3 h) = 4 km/h

If b and c represent the speeds of the boat and current, respectively, then we have ...

b + c = 12

b - c = 4

Adding these gives ...

2b = 16

b = 8

c = b -4 = 4

The rate of the rowing team in calm water is 8 km/h; the rate of the current is 4 km/h.

6 0

3 years ago

Read 2 more answers

How do I move one side to the other: <img src="https://tex.z-dn.net/?f=sin%5E2%5Calpha%20-%20cos%5E2%5Calpha%20%3D%202si

Vera_Pavlovna [14]

9514 1404 393

Explanation:

You can use the addition property of equality to "move" a term from one side of the equation to the other. For example, if you want to move the cos²α term, you can add cos²α to both sides of the equation:

sin²α -cos²α +cos²α = 2sin²α -1 +cos²α

When this is simplified, it becomes ...

sin²α = 2sin²α +cos²α -1 . . . . . . the cos²α term is gone from the left

The equation you have is an identity. The left and right sides are equal for any value of α. When you have such an equation as a trig problem, you are often being asked to prove it is true. The way you do that is to make use of other trig identities to transform one side so that it matches the other side.

Here, you can use the trig identity ...

sin²α +cos²α = 1

If you use this to substitute for 1 on the right, you have ...

sin²α - cos²α = 2sin²α - (sin²α +cos²α)

Now, when you collect terms, you get ...

sin²α - cos²α = 2sin²α - sin²α -cos²α . . . eliminate parentheses

sin²α - cos²α = sin²α - cos²α . . . . . proof of your identity

7 0

3 years ago

Given a polynomial function f(x) = 2x2 – 3x + 5 and an exponential function g(x) = 2% – 5, what key features do f(x) and g(x) ha

prohojiy [21]

A. Both $f(x)$ and $g(x)$ have the same domain of $(9, +\infty)$ .

<h3>How to analyze similarities in two functions</h3>

In this question we must analyze the domain, range, x-intercepts and increase intervals:

<h3>Domain</h3>

$Dom \{f(x)\} = \mathbb{R}$

$Dom \{g(x)\} = \mathbb{R}$

Both functions are continuous.

<h3>Range</h3>

$Ran \left\{f(x)\right\} = (3.875, +\infty)$

$Ran \{g(x)\} = (-5, +\infty)$

<h3>x-Intercepts</h3>

$f(x):$ $(x,y) = \emptyset$

$g(x):$ $(x,y) = (2.322, 0)$

<h3>Increase intervals</h3>

$f(x):$ According to the graph, $f(x)$ increase over the interval of $(3.875, + \infty)$ .

$g(x) :$ According to the graph, $g(x)$ increase over the interval of $\mathbb{R}$

After a quick analysis, we conclude that option A offer the best approximation to characteristics of both functions. $\blacksquare$

<h3>Remark</h3>

The statement presents mistakes and is poorly formatted. Correct form is:

Given a polynomial function $f(x) = 2\cdot x^{2}-3\cdot x + 5$ and an exponential function $g(x) = 2^{x}-5$ . What key features do $f(x)$ and $g(x)$ have in common?

A. Both $f(x)$ and $g(x)$ have the same domain of $(9, +\infty)$ .

B. Both $f(x)$ and $g(x)$ have the same range of $(-\infty, 0]$ .

C. Both $f(x)$ and $g(x)$ have the same x-intercept of $(2,0)$ .

D. Both $f(x)$ and $g(x)$ increase over the interval of $(-4, +\infty)$ .

To learn more on functions, we kindly invite to check this verified question: brainly.com/question/5245372

4 0

2 years ago