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worty [1.4K]
3 years ago
6

dvds are on sale for $24 each. felipe writes the expression 4 x 24 to find the cost in dollars of buying 4 dvds. how can you rew

rite felipes expression using the distributive property
Mathematics
1 answer:
Orlov [11]3 years ago
3 0
4 * 24 = 4(20 + 4) or 4(20) + 4(4)
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It is not possible to prove one pair of triangles congruent and then use their congruent corresponding parts to prove another pa
borishaifa [10]

Answer:

true

The wording does not quite mean anything,

but what I think was meant to ask is

"if we use some parts of two triangles to prove they are congruent,

can we then use that to prove that

a pair of corresponding parts not used before are congruent?"

The answer is

Yes, of course,

Corresponding Parts of Congruent Triangles are Congruent,

which teachers usually abbreviate as CPCTC.

For example, if we find that

side AB is congruent with side DE,

side BC is congruent with side EF, and

angle ABC is congruent with angle DEF,

we can prove that triangles ABC and DEF are congruent

by Side-Angle-Side (SAS) congruence.

We then, by CPCTC, can conclude that other pairs of corresponding parts are congruent:

side AB is congruent with side DE,

angle BCA is congruent with angle EFD, and

angle CAB is congruent with angle FDE.

It was possible (by CPCTC) to prove those last 3 congruence statements,

after proving the triangles congruent.

The expected answer is FALSE.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The polynomial x 3 + 5x 2 - ­57x -­189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in. If t
Ipatiy [6.2K]
V=x^3+5x^2-57x-189
Width: W=(x+3) in = 15 in →x+3=15
Solving for x:
x+3-3=15-3→x=12

With x=12 the Volume would be:
V=(12)^3+5(12)^2-57(12)-189
V=1,728+5(144)-684-189
V=1,728+720-684-189
V=1,575

V=W*D*H
Depth: D
Height: H
with H>D

V=1,575; W=15
Replacing in the equation above:
1,575=15*D*H
Dividing both sides by 15
1,575/15=(12*D*H)/15
105=D*H
3*5*7=D*H
D<H
If D=5→H=3*7→H=21
If D=7→H=3*5→H=15

Answer: Option <span>C. height: 21 in. depth: 5 in.
</span>
Please, see the attached file for another form to solve the problem

4 0
3 years ago
Read 2 more answers
What is the measure of the missing length ?
Levart [38]

Answer:

38km

Step-by-step explanation:

c^2-b^2=a^2

42^2-18^2= sqrt 1440

=37.95

4 0
3 years ago
900,000 divided by 3,000
mina [271]
300.................................

8 0
3 years ago
Read 2 more answers
The inverse of a function occurs when _____.
stira [4]

Answer:

⇒When the funtion is both one one and onto , then inverse of the function exists.

⇒≡Consider the function

   y=x+2

It is one-one, because for every x there is unique y.So, it is one one.In one-one, there may be some elements in x, which do not have preimage.

It is onto also, because for each x, there is unique y.

So, the inverse of function will be

  x=y-2

Replacing x by y and y by x , gives inverse of the function.

   y=x-2, is the inverse of the function.

 

8 0
3 years ago
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