Ask question

Ask question

All categories

3 years ago

15

I need help with problem 2 please!

2 answers:

storchak [24]3 years ago

8 0

W and Z are both 30
because angles on a straight line = 180, the line diagonally top left to bottom right has an intersecting line with angle of 150.

180-150 = 30

this leaves angle Y which is 90-30 as it is a right angle. So angle Y is 60 and to get x, it is 90 due to the right angle. you can prove this by saying angles on a straight line are 180 and 180-(Y+ Z) or 180-(30+60)

diamong [38]3 years ago

6 0

You can use protractors I think

You might be interested in

PLEASE HELP PLEASE PLEASE

r-ruslan [8.4K]

Answer:

something is happening means it's wrong.

3 0

2 years ago

Which is a solution of x2 – x – StartFraction 3 Over 4 EndFraction = 0?

Anna [14]

Answer:

x = - $\frac{1}{2}$ , x = $\frac{3}{2}$

Step-by-step explanation:

Given

x² - x - $\frac{3}{4}$ = 0 ( add $\frac{3}{4}$ to both sides )

x² - x = $\frac{3}{4}$

Solve using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2( - $\frac{1}{2}$ )x + $\frac{1}{4}$ = $\frac{3}{4}$ + $\frac{1}{4}$

(x - $\frac{1}{2}$ )² = 1 ( take the square root of both sides )

x - $\frac{1}{2}$ = ± 1 ( add $\frac{1}{2}$ to both sides )

x = $\frac{1}{2}$ ± 1

Thus

x = $\frac{1}{2}$ - 1 = - $\frac{1}{2}$

x = $\frac{1}{2}$ + 1 = $\frac{3}{2}$

4 0

3 years ago

Read 2 more answers

The fourth term of an AP is 13 and the second term is 3 find the common difference<br><br>

kogti [31]

Answer:

5

Step-by-step explanation:

<h3>Given</h3>

<u>In and AP</u>

a4 = 13
a2 = 3
d = ?

<h3>Solution</h3>

<u>Formula for the terms of AP:</u>

a4 = a + 3d
a2 = a + d

<u>The difference of terms:</u>

a + 3d - (a - d) = 13 - 3
2d = 10
d = 5

3 0

3 years ago

A particular automatic sprinkler system has two different types of activation devices for each 3 sprinkler head. One type has a

zmey [24]

Answer:

There is an 85% probability that the sprinkler head will be activated.

Step-by-step explanation:

We have these following probabilities:

50% of the first sprinkler being triggered

90% of the first sprinkler being reliable

50% of the second sprinkler being triggered

80% of the second sprinkler being reliable.

What is the probability that the sprinkler head will be activated?

$P = P_{1} + P_{2}$

$P_{1}$ is the probability of the first sprinkler being triggered and activated. So:

$P_{1} = 0.5*0.9 = 0.45$

$P_{2}$ is the probability of the second sprinkler being triggered and activated. So:

$P_{2} = 0.5*0.8 = 0.40$

$P = P_{1} + P_{2} = 0.40 + 0.45 = 0.85$

There is an 85% probability that the sprinkler head will be activated.

6 0

3 years ago

Add reduce the sum to the lowest terms whenever possible 27 1/5 + 2/6

vredina [299]

27 1/5 + 2/6

\\Convert to like fractions:

= 27 6/30 + 10/30

\\Add the fractions

= 27 16/30

\\Simplify by dividing by 2

= 27 8/15

Answer: 27 8/15

4 0

2 years ago