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
Phoenix [80]
2 years ago
12

Repost of my question i need help quicklyy help plzz

Mathematics
1 answer:
GuDViN [60]2 years ago
8 0

Answer:

According to logarithmic properties.... The right hand side can be written as

log base 7 (180/3).....which is log base 7 60

So according to the question cancel out the log base 7 from both sides....

Then we get 8r + 20 = 60

That is 8r = 40..

That is r = 5......

Therefore the value of r is 5

You might be interested in
NEED HELP ASAP, What is the angle of rotation from ARST TO AR'ST? Assume that the center of rotation is the origin.
LenaWriter [7]

Answer:

c if not d

Step-by-step explanation:

6 0
2 years ago
An equilateral triangle has sides of length 2 units. A second equilateral triangle is formed having sides that are 150% of the l
murzikaleks [220]

Answer:

The percent increase in the perimeter is 337.5%

Step-by-step explanation:

The easiest way to approach this problem is by using consecutively the simple rule of three.

If the first triangle has sides of length two then, we can compute the second triangle's sides length as follows:

2 units------100%

X units------150%    

this way

X = 2*\frac{150}{100}\\ X =2*1.5\\X=3units.

Now for the third triangle we repeat the same process

3 units------100%

X units------150%  

getting that the length of the sides for the third triangle is

X = 3*\frac{150}{100}\\ X =3*1.5\\X=4.5units.

Now for the last triangle we repeat the same process

4.5 units------100%

X units------150%  

getting that the length of the sides for the last triangle is

X = 4.5*\frac{150}{100}\\ X =4.5*1.5\\X=6.75units.

Now, we need to know the perimeter of the first and last triangle. This can be calculated as the sum of the length of the sides of the triangle.

For the first triangle

P_{first}=2+2+2\\P_{first}=6

and for the last triangle

P_{first}=6.75+6.75+6.75\\P_{first}=20.25.

To compute the percent increase in the perimeter from the first to the fourth triangle we will use one last simple rule of three (this time the percentage will be the variable)

6 units------100%

20.25 units------X%

so

X = 100\frac{20.25}{6}\\ X=337.5\%.

4 0
3 years ago
In triangle xyz, m∠z > m∠x m∠y. which must be true about △xyz? m∠x m∠z < 90° m∠y > 90° ∠x and∠y are complementary m∠x m
Anon25 [30]

m∠X + m∠Y < 90° is true.

<h3>How to solve it?</h3>

XYZ is a triangle.

We have to find the option that is true about △XYZ.

By angle sum property of a triangle,

The sum of all the interior angles of a triangle is always equal to 180°.

So, ∠X + ∠Y + ∠Z = 180°

Given, m∠Z > m∠X + m∠Y.

This implies that ∠Z is greater than the sum of the angles ∠X and ∠Y.

so, ∠X + ∠Y must be less than 90°.

Hence, we can say that ∠X + ∠Y < 90°

To know more about triangles, visit:

brainly.com/question/1968095

#SPJ4

7 0
2 years ago
sasha is trying to grt to the bus station from her dance studio . sasha's dance studio is located at the point (3,-4) the bus st
NikAS [45]

Answer:

7

Step-by-step explanation:

4 0
2 years ago
15(3x - 4y)<br> Use Distributive property
MariettaO [177]
45x -4y is the answer

5 0
2 years ago
Read 2 more answers
Other questions:
  • If c= 54$ when n is 9, what is the cost of the sandwich when n is 3
    6·1 answer
  • How to do 55 is increased to 90
    13·1 answer
  • Find the coordinates of the point P that divides the directed line segment from A to B in the given ratio.
    14·1 answer
  • If two distinct lines intersect , what must be true ?
    13·2 answers
  • Write the set of points from −5 to 2 but excluding −2 and 2 as a union of intervals
    9·1 answer
  • 15 &lt; −5x can someone please solve for x?
    7·2 answers
  • Is -1.5 greater than -3/2
    13·2 answers
  • Choose all answers that apply:
    14·1 answer
  • Find the measure of the central angle indicated and place answer below:
    9·1 answer
  • Ramon is going to walk, jog, and run a total distance of 30 miles for charity. He plans to walk 1/2 of the total distance,of the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!