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
nataly862011 [7]
3 years ago
14

Help me with this pls

Mathematics
1 answer:
ella [17]3 years ago
3 0

Answer:

7:3

Step-by-step explanation:

Divide both sides by 4

You might be interested in
Factorise this expression as fully as possible<br>4x²+x​
borishaifa [10]

You can only factor x out of both terms:

x(4x+1)

8 0
3 years ago
Consider the following hypothesis test: H 0: 20 H a: &lt; 20 A sample of 50 provided a sample mean of 19.4. The population stand
goblinko [34]

Answer: p-value is 0.016.

Step-by-step explanation:

Since we have given that

H_0:\mu=20\\\\H_a:\mu

Sample mean = 19.4

Sample size n = 50

Standard deviation = 2

We need to find the test statistic value which is given by

z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\\\z=\dfrac{19.4-20}{\dfrac{2}{\sqrt{50}}}\\\\\\z=\dfrac{-0.6}{0.28}\\\\z=-2.14

p-value is given by

P(Z>Z_{critical})\\\\=P(Z>-2.14)\\\\=0.016

Hence, p-value is 0.016.

8 0
3 years ago
Use the converse of the Pythagorean theorem to decide whether ΔABC is a right triangle by answering the questions.
navik [9.2K]

Answer:

Pythagorean theorem: a^2 + b^2 = c^2

1. we have to find a. b is 12 and c is 15 because the right angle is pointing towards 15 so that is the hypotenuse. then we simply plug the info in the equation we have above.

a^2 + 12^2 = 15^2

a^2 + 144 = 225

a^2 = 81 --> sqaure root to find the answer basically.

a = 9

- we put AD as a so AD = 9

final answer : 9

2. to find AC, simply add AD and DC.

9 + 16 = 25

final answer: AC = 25

3. ABC is not a right triangle because it does not have a right angle. the smaller triangles do, but that does not mean that ABC is a right triangle.

-- let me know if you need any further explanations.

3 0
3 years ago
Read 2 more answers
If you do not anwser this thanks if you do thanks more
Drupady [299]
The correct answer would be, 300,060,520
4 0
4 years ago
Read 2 more answers
Please help thanks
qwelly [4]

Answer:

x = 7 is your answer.

Step-by-step explanation:

Here is what you do:

<em>x + 16 = 4x - 5</em>

<em>-3x + 16 = -5</em>

<em>-3x = -21</em>

x = 7 is your answer.

4 0
3 years ago
Other questions:
  • A 54-foot guy wire is attached to a utility pole to provide support for the pole. The wire forms a 60º angle with the ground. Ho
    10·1 answer
  • 1. Cash is
    14·1 answer
  • Find tenth term of the sequence (1,1,2,3,5,8,13)
    14·1 answer
  • Find the nonpermissible replacement for y in
    6·1 answer
  • Helpppppppooo meeee pleaseeeeeeeeeeeeeee help meee
    9·1 answer
  • A field test for a new exam was given to randomly selected seniors. The exams were graded, and the sample mean and sample standa
    13·1 answer
  • 84 + 45 = 3(28 + 15) Yes or No
    11·1 answer
  • Jack has a Rock. The Rock has a mass of 6g and a volume of 3ml. what is the density of The Rock?
    13·1 answer
  • A limited-edition poster increases in value each year. After 1 year, the poster is worth $20.70. After 2 years, it is worth $23.
    12·2 answers
  • I need help no links or files brainly will remove it
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!