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Daniel [21]
3 years ago
9

I'LL GIVE BRAINLIEST!!!!!!!!!!

Mathematics
2 answers:
Xelga [282]3 years ago
7 0

Answer:B.

Step-by-step explanation:

Elza [17]3 years ago
5 0

Answer:

c

Step-by-step explanation:

You might be interested in
1. Evan drove 308 km in the same time that Meghan drove 329 km. If Meghan drove
emmainna [20.7K]

Answer:

Her average speed is 94 km/h

Time taken is 3.5 hours

Step-by-step explanation:

Let Evan’s average speed be x km/h.

now since Meghan drove faster, according to the question, we can say her average speed would be x + 6 km/h

Mathematically, time = distance/speed

so; since time is the same; we have

308/x = 329/(x + 6)

cross multiply

329(x) = 308(x + 6)

329x = 308x + 1848

329x-308x = 1848

21x = 1848

x = 1848/21

x = 88 km/h

Meghan average speed = x + 6 = 88 + 6 = 94 km/h

Time taken would be 329/94 = 3.5 hours

8 0
3 years ago
One pencil is 20 mm long and a second pencil is 4.2 cm long. How long would the total length of the pencils be in cm? (1 cm = 10
lubasha [3.4K]

Answer:

6.2 cm

Step-by-step explanation:

3 0
2 years ago
Which expression is equivalent to the expression below?
Mama L [17]

Answer:

5r + 2p + 6

Step-by-step explanation:

= 4r + 9 + r + 2p - 3

= 4r + r + 2p + 9 - 3

= 5r + 2p + 6

4 0
3 years ago
Let R be a relation on the set of all lines in a plane defined by (l 1 , l 2 ) R line l 1 is parallel to l 2 . Show that R is
MArishka [77]

Answer: hello your question is poorly written below is the complete question

Let L be the set of all lines in XY plane and R be the relation in L defined as R = {(L1, L2): L1 is parallel to L2}. Show that R is an equivalence relation. Find the set of all lines related to the line y = 2x + 4.

answer:

a ) R is equivalence

b) y = 2x + C

Step-by-step explanation:

<u>a) Prove that R is an equivalence relation </u>

Every line is seen to be parallel to itself ( i.e. reflexive ) also

L1 is parallel to L2 and L2 is as well parallel to L1 ( i.e. symmetric ) also

If we presume L1 is parallel to L2 and L2 is also parallel to L3 hence we can also conclude that L1 is parallel to L3 as well ( i.e. transitive )

with these conditions we can conclude that ; R is equivalence

<u>b) show the set of all lines related to y = 2x + 4 </u>

The set of all line that is related to y = 2x + 4

y = 2x + C

because parallel lines have the same slopes.

5 0
3 years ago
Factor the GCF: 9x4y − 6x3y2 + 3x2y3.
Ganezh [65]
For this case we have the following expression:
 9x^4y - 6x^3y^2 + 3x^2y^3&#10;
 For this case what you should do is observe the terms that are repeated in the given expression.
 We have then:
 3x^2y&#10;
 It is the term that is present in the whole expression.
 Therefore, by doing common factor we have:
 3x^2y (3x^2 - 2xy + y^2)&#10;
 Answer:
 
the GCF is:
 3x^2y (3x^2 - 2xy + y^2)
 option A: a 3 is missing at the beginning of the option.
7 0
3 years ago
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