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
dexar [7]
3 years ago
10

24 POINTS!!!!!!!!!!!!!!!

Mathematics
1 answer:
inessss [21]3 years ago
4 0
Scale factors are multipiled
a times scale factor turns into b

so
0.5 times scale factor=0.8
divide both sides by 0.5
scale factor=1.6
the scale factor is 1.6
You might be interested in
Which is the correct calculation for the volume of the prism? A prism has a length of 6 units, height of 7 units, and width of 4
EastWind [94]

Answer:V=168\ units^3

Step-by-step explanation:

Given

Length of Prism l=6\ units

Height of prism h=7\ units

width of prism b=4\ units

Now Volume of a prism is given by

V=l\times b \times h

V=6\times 4\times 7

V=168\ units^3

6 0
3 years ago
What is the sum of 4z -5y + z + y? Represent the sum by beginning with the z term of your sum. DO NOT INCLUDE SPACES.​
docker41 [41]

Answer:

-4y+5z

Step-by-step explanation:

8 0
3 years ago
Let M be the set of all nxn matrices. Define a relation on won M by A B there exists an invertible matrix P such that A = P BP S
Sophie [7]

Answer:

Recall that a relation is an <em>equivalence relation</em> if and only if is symmetric, reflexive and transitive. In order to simplify the notation we will use A↔B when A is in relation with B.

<em>Reflexive: </em>We need to prove that A↔A. Let us write J for the identity matrix and recall that J is invertible. Notice that A=J^{-1}AJ. Thus, A↔A.

<em>Symmetric</em>: We need to prove that A↔B implies B↔A. As A↔B there exists an invertible matrix P such that A=P^{-1}BP. In this equality we can perform a right multiplication by P^{-1} and obtain AP^{-1} =P^{-1}B. Then, in the obtained equality we perform a left multiplication by P and get PAP^{-1} =B. If we write Q=P^{-1} and Q^{-1} = P we have B = Q^{-1}AQ. Thus, B↔A.

<em>Transitive</em>: We need to prove that A↔B and B↔C implies A↔C. From the fact A↔B we have A=P^{-1}BP and from B↔C we have B=Q^{-1}CQ. Now, if we substitute the last equality into the first one we get

A=P^{-1}Q^{-1}CQP = (P^{-1}Q^{-1})C(QP).

Recall that if P and Q are invertible, then QP is invertible and (QP)^{-1}=P^{-1}Q^{-1}. So, if we denote R=QP we obtained that

A=R^{-1}CR. Hence, A↔C.

Therefore, the relation is an <em>equivalence relation</em>.

4 0
4 years ago
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
BabaBlast [244]

Answer:

328.5 cm

Step-by-step explanation:

Volume= L x W x H

10 x 4.5 x 7.3= 328.5

:))

6 0
3 years ago
The product of twice a number and three is the same as the difference of five times the number and 3/4 . Find the number
castortr0y [4]
We start by taking the number to be ‘x’

3 0
3 years ago
Other questions:
  • This table shows how many sophomores and juniors attend two high school events . what is the probability that a randomly chosen
    8·2 answers
  • At a little known vacation spot taxi fares are a bargain. A 36 mile taxi ride takes 42 minutes and cost $25.20. You want to find
    14·1 answer
  • What are the solutions of the equation (x-3)^2 + 2(x-3)-8=0
    9·1 answer
  • s before he gave away the 10 marbles then his friend Mark had nine marbles then his friend gave him 9 more then his other friend
    5·1 answer
  • CAN SOMEONE HELP ME THERE IS A BRAINLIEST
    13·1 answer
  • Can i get some help for this thanks
    12·2 answers
  • 1) 3r² – 2r=-9<br> Quadratic formula
    10·1 answer
  • Please help for 30 points
    14·1 answer
  • When using the Pythagorean Theorem to find the
    12·1 answer
  • Select the correct answer.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!