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3 years ago

Plzz help me with this question

Mathematics

1 answer:

bixtya [17]3 years ago

6 0

Answer:

x = 5

Step-by-step explanation:

We need to find the value of x in this case.

For this, we need to consider that the triangles are similar. Now, we can find it as follows :

$\dfrac{12}{3}=\dfrac{20}{x}\\\\x=\dfrac{20\times 3}{12}\\\\x=5$

So, the value of x is equal to 5.

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Given triangle abc is an isosceles right triangle where angle b is the right angle and line bd is an angle bisector. Which postu

Leya [2.2K]

Answer:

angle bisector theorem

Step-by-step explanation:

the angle bisector theorem tells us that if an angle is cut by a bisector than it willl be equally cut and congruent

3 0

3 years ago

One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s

siniylev [52]

Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

For sample 1:

n₁ = 10

variance, s₁² = 20

For sample 2:

n₂ = 15

variance, s₂² = 30

Now,

The pooled variance is calculated using the formula,

$S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}$

on substituting the given respective values, we get

$S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}$

$S^{2}_{p}$ = 26.0869

Hence,

the pooled variance will be closer to 30 than to 20

Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

4 0

3 years ago

Is 3 1/4 closer to 3 or 4<br><br><br>is 3 3/5 closer to 3 or 4

agasfer [191]

Answer:3 and 1/4 is closer to 3 and 3/5 is closer to 4

Step-by-step explanation: one is closer on the number scale then the other

3 0

2 years ago

What is the volume in cubic units of a cylinder diameter 6 and height 4

katrin2010 [14]

Hey there!

The formula for the volume of a cylinder is $\pi r^{2} h$ , which is essentially the base multiplied by the height.

If our diameter is six, then our radius is three, so we can solve for our base below. We will use 3.14 for pi.

$3^{2}(3.14)=28.26$

Now, we multiply this by our height of four.

$28.26(4)=113.04$

Therefore, our volume is 113.04 cubic units.

I hope this helps!

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2 years ago

Whoever can answer 11-2 in PEDMAS form pls do it.

butalik [34]

Answer:

Step-by-step explanation:

11 - 2 = 9

3 0

2 years ago