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3 years ago

Can anyone assist me on this

Mathematics

1 answer:

Ad libitum [116K]3 years ago

6 0

Answer:

Perimeter is 100

Step-by-step explanation:

A^2 + B^2 = C^2

20^2 + 15^2 = C^2

200 + 225 = C^2

C^2 = 625

C=25

Perimeter is 100

To get this you would do the 25 X 4 = 100 yds

Hope this helps :)

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On a coordinate plane, a curved line begins at point (negative 2, negative 3), crosses the y-axis at (0, negative .25), and the

STALIN [3.7K]

Answer:

Answer:

All real numbers greater than or equal to -3

Step-by-step explanation:

we know that

The curved line could be a vertical parabola opening upwards with vertex at (2,-3)

The vertex is a minimum

The y-intercept is the point (0,1)

The x-intercepts are the points (0.25,0) and (3.75,0)

The domain is the interval -----> (-∞,∞)

All real numbers

The range is the interval ----> [-3,∞)

All real numbers greater than or equal to -3

5 0

2 years ago

What is √25 times√81 times 0?

GrogVix [38]

Well, when any equation has a 0 multiplied into it, the answer will be zero.
Anyway, √25 equals 5
√81 equals 9
9*5 = 45
45 * 0 = 0
I hoped I helped!

6 0

3 years ago

A trucking firm suspects that the mean lifetime of a certain tire it uses is more than 30,000 miles. To check the claim, the fir

grandymaker [24]

Answer:

We conclude that the lifetime of tires is less than 30,000 miles.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 30,000 miles

Sample mean, $\bar{x}$ = 29,400 miles

Sample size, n = 54

Alpha, α = 0.05

Population standard deviation, σ =1200 miles

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 30000\text{ miles}\\H_A: \mu < 30000\text{ miles}$

We use One-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{29400 - 30000}{\frac{1200}{\sqrt{54}} } = -3.6742$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

$z_{stat} < z_{critical}$

We reject the null hypothesis and accept the alternate hypothesis.

Thus, we conclude that the lifetime of tires is less than 30,000 miles.

4 0

3 years ago

Solve the system of equations. <br> 9x+11y=2 <br> 3x+4y=4

Ronch [10]

Answer:

X= -12 Y=10

Step-by-step explanation:

4 0

3 years ago

What statistics are needed to draw a box plot?

never [62]

The minimum, maximum, median, first and third quarttiles

4 0

4 years ago

Can anyone assist me on this​

Can anyone assist me on this