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2 years ago

Included picture Question is not hard so please answer correctly

Mathematics

2 answers:

Morgarella [4.7K]2 years ago

7 0

Answer:

<h2>Sometimes</h2>

Step-by-step explanation:

<h3>The product of two irrational numbers is sometimes rational.</h3>

Genrish500 [490]2 years ago

4 0

Answer:

sometimes

Step-by-step explanation:

The following examples to illustrate

$\sqrt{2}$ is irrational

$\sqrt{2}$ × $\sqrt{2}$ = 2 ← which is rational

$\sqrt{3}$ is irrational and

$\sqrt{2}$ × $\sqrt{3}$ = $\sqrt{6}$ ← which is irrational

Result is therefore sometimes

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Find Y <br>..............

N76 [4]

Answer:

y = 40 / sqrt(pi)

Step-by-step explanation:

The area is 400

We want to find the diameter

400 = pi r^2

Divide each side by pi

400/ pi = r^2

Take the square root of each side

sqrt(400/ pi) = sqrt(r^2)

20/ sqrt(pi) = r

The diameter is twice the radius

2 r = d

2 * 20/ sqrt(pi) = d

40 / sqrt(pi) =d

y is the diameter so

y = 40 / sqrt(pi)

4 0

3 years ago

The length of the hypotenuse of a right angled triangle exceeds the length of the base by 2cm and exceeds twice the length of th

insens350 [35]

Answer: a = 8; b = 15; c = 17

Step-by-step explanation:

c = b + 2 and c = 2a + 1

b = c − 2 and a = $\frac{c-1}{2}$

c² = b² + a²

$c^{2} = (c-2)^{2} + \frac{c-1}{2}\\$

$c^{2}= \frac{4 (c-2)^{2}+(c - 1)^{2} }{4}$

$4c^{2}={4 (c^{2} + 4 -4c)+c ^{2} + 1-2c$

$4c^{2}={4 c^{2} + 16 -16c)+c ^{2} + 1-2c$

$c^{2}-18c+17=0$

$c(c -17)-1(c-17)=0$

$(c -1)(c-17)=0$

c = 1 or c = 17

If c = 1 then b = 1 - 2 = -1, that's not possible

So x = 17

b = 17 - 2 = 15

a = $\frac{17-1}{2} = 8$

Length sides of the triangle are 17 cm, 15 cm and 8 cm.

I saw some of this on a site but I want to make sure its correct so we're gonna apply the pythagorean theory and see if its correct.

$a^{2} + b^{2} = c^{2} \\8^{2} + 15^{2} = 17^{2} \\64 + 225 = 289\\289 = 289\\$

This shows that this is correct.

Hope this helped! Again, some of this was from a site, not from me.

3 0

2 years ago

Metrics are based on the british system of weights and measures. true false

HACTEHA [7]

I looked it up, and it said false.

4 0

3 years ago

Read 2 more answers

What are the intercepts of y=4x-2?

pshichka [43]

First, solve for the x - intercept. To do so, equate y to 0 and solve for x.

0 = 4x - 2, x = 1/2

Second, solve for the y - intercept. Equate x to 0 which will give us,

y = (4)(0) -2, y = -2

Therefore, the x-intercept is 1/2 and y-intercept is -2.

8 0

3 years ago

Many fundraisers ask for donations using email and text messages. A paper describes an experiment to investigate whether the pro

blagie [28]

Answer:

b. donations using text message

d. donations using email

Step-by-step explanation:

From the question, it is clear that the people who received these requests were assigned to two groups and these 2 were assigned treatments of if they make donations after either receiving email or text messages after which their respective proportions p1 and p2 are determined.

7 0

2 years ago