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
vagabundo [1.1K]
2 years ago
6

Jacks average in math for the first nine weeks was an 88. His second nine weeks averange deceased to 81. What is the is the perc

ent of change from the first nine weeks to the second? Label increase or decrease
Mathematics
1 answer:
dolphi86 [110]2 years ago
5 0
It has to be decrease because from 88 to 81.


You might be interested in
Pleeeeeaaassseee help
borishaifa [10]
The runner ran 5/6 then he ran 9/10 more how much did he run in all
4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP ILL GIVE BRAINLIEST!!!!!<br><br>find measure of arc MK​
Gwar [14]

Answer:

Arc length MK = 15.45 units (nearest hundredth)

Arc measure = 58.24°

Step-by-step explanation:

Calculate the measure of the angle KLN (as this equals m∠KLM which is the measure of arc MK)

ΔKNL is a right triangle, so we can use the cos trig ratio to find ∠KLM:

\sf \cos(\theta)=\dfrac{A}{H}

where:

  • \theta is the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Given:

  • \theta = ∠KLM
  • A = LN = 8
  • H = KL = 15.2

\implies \sf \cos(KLM)=\dfrac{8}{15.2}

\implies \sf \angle KLM=\cos^{-1}\left(\dfrac{8}{15.2}\right)

\implies \sf \angle KLM=58.24313614^{\circ}

Therefore, the measure of arc MK = 58.24° (nearest hundredth)

\textsf{Arc length}=2 \pi r\left(\dfrac{\theta}{360^{\circ}}\right) \quad \textsf{(where r is the radius and}\:\theta\:{\textsf{is the angle)}

Given:

  • r = 15.2
  • ∠KLM = 58.24313614°

\implies \textsf{Arc length MK}=2 \pi (15.2)\left(\dfrac{\sf \angle KLM}{360^{\circ}}\right)

\implies \textsf{Arc length MK}=\sf 15.45132428\:units

6 0
2 years ago
Pythagorean theorem digital escape, can you find the length and area and type the correct code?​
matrenka [14]

Answer:

A=13825

Step-by-step explanation:

5 0
2 years ago
Please help
Damm [24]

Answer:

It is a

Step-by-step explanation:

5 0
3 years ago
Which of the following is the best definition of vertical angles?
Lilit [14]

Step-by-step explanation:

Very quick and effortless example of vertical angles in the attached image. When 2 straight lines intersect, the 2 angles opposite each other at that point are vertical angles, and they are always congruent.

I'd say it's the 3rd option:

"Vertical angles are a pair of non-adjacent angles formed by two intersecting lines."

but any of the first three could be technically true really. Adjacent angles are 2 angles that share a side, and vertical angles cannot share one.

8 0
2 years ago
Other questions:
  • a bag of marbles contains 8 red marbles, 4 blue marbles, and 5 white marbles. tom picks a marble at random. is it more likely th
    15·1 answer
  • Solve the system r + s = -12
    11·2 answers
  • Lines a and b are cut by transversal f. At the intersection of lines f and a, the top left angle is 96 degrees. At the intersect
    15·2 answers
  • HLP ! HLP ! HLP ! Last one
    13·1 answer
  • What are the first three common multiples of 18 and 30?In class need help now!
    5·1 answer
  • Hi guys, need help for question 3 please!!! Struggling so much
    10·1 answer
  • Jasmine went shopping and spent $56 on accessories and clothes. she spent $18 more on clothes than accessories. write and solve
    5·1 answer
  • Help fast 100 points!!
    15·2 answers
  • Eric found that about 62% of 80 classmates at school like hip-hop music. However, 70% of his 60 relatives like hip-hop.
    5·1 answer
  • You ask four people to the prom. If X is the number of "yes" responses, what is E(X)? Assume equal probability for
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!