1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elan Coil [88]
3 years ago
12

Hi could someone just help me with this I'm not sure if i'm doing it correctly.

Mathematics
1 answer:
salantis [7]3 years ago
4 0
Two angles are supplementary when they <span>add up to 180 degrees </span>⇒
m∠1 + m∠2 = 180°
4y + 7 + 9y + 4 = 180
13y + 11 = 180
13y = 180 - 11
13y = 169
y = 169/13
y = 13

m∠2 = 9y + 4 = 9 * 13 + 4 = 121°
You might be interested in
How do you write 2 thousands 9 tens and 18 ones in standard form
Dovator [93]
2 thousands 9 tens and 18 ones in standard form is 2,108.
5 0
3 years ago
Read 2 more answers
Meteorologists in Texas want to increase the amount of rain delivered by thunderheads by seeding the clouds. Without seeding, th
Dafna11 [192]

Answer:

<em>There is no significant difference in the amount of rain produced when seeding the clouds.</em>

Step-by-step explanation:

Assuming that the amount of rain delivered by thunderheads follows a distribution close to a normal one, we can formulate a hypothesis z-test:

<u>Null Hypothesis </u>

\bf H_0: Average of the amount of rain delivered by thunderheads without seeding the clouds = 300 acrefeet.

<u>Alternative Hypothesis </u>

\bf H_a: Average of the amount of rain delivered by thunderheads by seeding the clouds > 300 acrefeet.

This is a right-tailed test.

Our z-statistic is  

\bf z=\frac{370.4-300}{300.1/\sqrt{30}}=1.2845

We now compare this value with the z-critical for a 0.05 significance level. This is a value \bf z^* such that the area under the Normal curve to the left of \bf z^* is less than or equal to 0.05

We can find this value with tables, calculators or spreadsheets.

<em>In Excel or OpenOffice Calc use the function </em>

<em>NORMSINV(0.95) </em>

an we obtain a value of  

\bf z^* = 1.645

Since 1.2845 is not greater than 1.645 we cannot reject the null, so the conclusion that can be drawn when the significance level is 0.05 is that there is no significant difference in the amount of rain produced when seeding the clouds.

8 0
3 years ago
Need help ASAP !!!<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B26548%20%5Ctimes%2026548%7D%20" id="TexFormula1" title=
miskamm [114]

Answer:

√{26548×26548}=√26548²=±26548

6 0
3 years ago
Read 2 more answers
The graph below displays the wrist circumferences and heights of six students in Alyssa’s classroom.
coldgirl [10]

Answer:

Option D(No because the wrist circumference of 16 cm is paired with two heights.


Step-by-step explanation:

In the given graph we have  set of points representing the wrist circumferences and heights of six students in Alyssa’s classroom.

x axis  represents the wrist circumference while  y axis represent the height.

Any relation is called a function if for one value of x we have only one value of y. If the graph passes the vertical line test that is if a vertical line drawn touches the graph at only one point then the graph is called a function.In the given graph for x value x=16 there are two y values 162 and 165.So the graph is not a function.

Among all the options Option D(No because the wrist circumference of 16 cm is paired with two heights.) is the right answer.

5 0
3 years ago
Read 2 more answers
Can someone help me Write an equation for this graph?
Paladinen [302]
Y=2/3x-1 is the equation:)
4 0
3 years ago
Other questions:
  • II NEED HELP!!!!!!!! Are the graphs of the lines in the pair parallel? Explain. y = 2/3x– 17 4x – 6y = –6 4x-6y=-6 Yes, since th
    14·1 answer
  • Determine whether the lines are parallel, intersect, or coincide<br> y=1/3x+4 <br> x-3y=-12
    13·1 answer
  • Discuss the significance of the discontinuities of T to someone who uses the road. Because of the steady increases and decreases
    10·1 answer
  • Subtracting Factions 1 2/3 - 2 1/3=
    15·2 answers
  • Which statement about histograms is true?
    7·2 answers
  • Someone help me pleaseee this homework is due in 5 MINUTES
    14·1 answer
  • Answer part B please
    5·2 answers
  • Write 375 cm3 in millilitres.
    6·1 answer
  • Helppppppppppppppppppppppppppppppp
    5·1 answer
  • Use percents to compare attendance at two concerts: 299 people attended the first concert, while 949 attended the second. pls he
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!