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3 years ago

Look at the right triangle shown below. Which of the folllowing could not be the triangle’s dimensions?

Mathematics

1 answer:

Naily [24]3 years ago

4 0

Answer:

5,12,13

Step-by-step explanation:

The sides are almost close for the distance and so 5 doenst go with 12 and 13, its too small. For dimensions while the other numbers are close to being related. Do you know what I mean?

Hope this helped a little tho!

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Write the equation of the line passing through point (4, -1) and perpendicular to the line whose equation is 2 x - y - 7 = 0.

Dimas [21]

2 x - y - 7 = 0
y =2x - 7 slope = 2
perpendicular slope = -1/2
line passing through point (4, -1)
y = mx + b
-1=-1/2(4) + b
-1 = - 2 + b
b = 1

equation
y =-1/2(x) + 1

6 0

3 years ago

After extensive measurements of the time necessary to complete the first homework assignment, a teacher determines that there is

MaRussiya [10]

Answer: -1.55

Step-by-step explanation:

Given : Mean : $\mu=100$

Standard deviation : $\sigma=20$

Sample size : $n=60$

Sample mean : $\overline{x}=96$

The test statistic for the population mean is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

$\Rightarrow\ z=\dfrac{96-100}{\dfrac{20}{\sqrt{60}}}=-1.54919333848\approx-1.55$

Hence, the value of z statistic = -1.55

4 0

3 years ago

Angle DCA is 120°. What percent of the circle's area does this section represent?

dolphi86 [110]

A circle is 360

so we're going to set up a proportion

120 x
------ = ------
360 100

then cross multiply and divide

120 times 100=12000/360=33.3333333

so the answer is C. 33

I hope I've helped!

4 0

3 years ago

The differece of twice a number and five is three. Find the number

Anton [14]

Answer:

Step-by-step explanation:

LEt the number be x.

2x - 5 = 3

2x = 3 + 5 = 8

x = 8/2 = 4

To solve the equation: add 5 to both sides and then multiply by 1/2.

5 0

3 years ago

Read 2 more answers

Square root of 3.24 =

kvv77 [185]

Question says to find the square root of 3.24.

To find square root of decimal numbers, we can start by converting them into fraction so that decimal gets removed then find square root of numerator and denominator separately.

there are two digits after decimal in 3.24 so we can rewrite 3.24 as 324/100

Now let's find square root of the resulting fraction

$\sqrt{3.24}=\sqrt{\frac{324}{100}}= \frac{\sqrt{324}}{\sqrt{100}} = \frac{18}{10} = 1.8$

Hence final answer is 1.8.

3 0

3 years ago