All categories

3 years ago

Help me pls..................

Mathematics

2 answers:

valina [46]3 years ago

8 0

Angle 1 = 52 because they are alternate interior angles

Amanda [17]3 years ago

7 0

Answer:

52 degrees.

Step-by-step explanation:

You might be interested in

Solve inequality for x <br> x/-4<16

Andru [333]

The answer to this problem is x> -64

7 0

3 years ago

Read 2 more answers

Anh earns $7.75 per hour working after school. He needs at least $290 for a stereo system. Write and solve an inequality that de

UkoKoshka [18]

Answer:

7.75 x Y $\geq$ 290

Step-by-step explanation:

we can do it backwards

290/7.75

about 37.42

so Y = 37.42 hours or higher

(thx for reminding me to round)

or Y can = 38

3 0

2 years ago

Read 2 more answers

Joe heard from a reliable source that only 22% of people actually sleep 8 hours or more per night. You do a survey and find 58 o

Juliette [100K]

Answer:

95% Confidence interval: (31.32%,47.04%)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 148

Number of people who sleep for 8 hours or longer, x = 58

$\hat{p} = \dfrac{x}{n} = \dfrac{58}{148} = 0.3918$

95% Confidence interval:

$\hat{p}\pm z_{stat}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

Putting the values, we get:

$0.3918\pm 1.96(\sqrt{\dfrac{0.3918(1-0.3918)}{148}})\\\\ = 0.3918\pm 0.0786\\\\=(0.3132,0.4704)=(31.32\%,47.04\%)$

(31.32%,47.04%) is the required 95% confidence interval.

8 0

3 years ago

Solve the system of equations below algebraically <br> 2x+3y=6 and -5x+2y=4

Charra [1.4K]

Steps
I’m using elimination so I’m trying to get rid of y
To do that I multiply the first equation by 2 and the second by -3. Then solve
4x + 6x = 12
15x + -6x = -12
—————————
19x + 0 = 0
Divid by 19 to get x to one side. 0/19 is 0 so
X= 0
Plug that into an equation so 0 + 3y = 6
Divid by 3 and y = 2
Answer x = 0 y = 2

7 0

3 years ago

Select each perfect square

3241004551 [841]

Answer:

Step-by-step explanation:

1 and 2 no are perfect square other r not

8 0

3 years ago

Read 2 more answers