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inysia [295]
3 years ago
12

Plz help and no guessing

Mathematics
2 answers:
Pani-rosa [81]3 years ago
6 0
Multiply 1st equation by 5
-5x + 10y = -20

now you have
-5x + 10y = -20
 5x - 10y = 20
---------------------add
 0 + 0 = 0
0 = 0

answer
C. the system has infinitely many solutions
grin007 [14]3 years ago
5 0
When I multiply the top equation by 5 I get the following system:
-5x + 10y = -20
5x - 10y = 20

Add them together you then get 0 = 0.  Since 0 always equals 0 then the system will have infinitely many solutions
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Need some help with math
Vedmedyk [2.9K]

Answer:

Question 6 answer is 35

Step-by-step explanation:

using pythagoras theorem, hypotenuse²= opposite²+ adjacent²

since it is said that we're looking for the hypotenuse then the values given are for opposite and adjacent.

therefore, hyp²= 21²+28²

hyp²= 1225 take square root of both sides to eliminate square and find hypotenuse

hyp= 35

6 0
2 years ago
How to solve h when equation is |3h+1|=7h
tatuchka [14]

Answer:

h= 1/4 is your answer.

Step-by-step explanation:

What you do is get h by itself.

<em>|3h+1|=7h</em>

<em>-4h+1=0</em>

<em>-4h=-1</em>

<em>h=1/4</em>

h= 1/4 is your answer.

3 0
3 years ago
Consider the expression 5/6(1/2x+6)-3x
Gwar [14]
Ok...I considered it....oh..u want me to answer it...lol..ok

5/6(1/2x + 6) - 3x
5/12x + 30/6 - 3x
5/12x - 36/12x + 5
- 31/12x + 5 <===
3 0
3 years ago
From the diagram below, if side DF is 4 cm., side CB would be ______.
kondaur [170]

The measure of CB from the given figure is 8cm

<h3>What is a triangle?</h3>

A triangle is 2 dimensional shape with 3 sides and angles. The types of triangle that we have are;

  • Equilateral triangle
  • Scalene triangle
  • Isosceles

The given triangle is a scalene triangle since <u>none of the sides are equal</u>

From the figure shown, we can see that the mea<em>sure of DF is equivalent to  CE and EB</em>

Since CB = CE + EB

Given the following parameter

DF = 4cm

CE = EB = DF = 4cm

Substitute

CB = 4cm + 4cm

CB = 8cm

Hence the measure of CB from the given figure is 8cm

Learn more on triangles here; brainly.com/question/25215131

#SPJ1

5 0
1 year ago
Estimate the quotient of 9 1/3 divided by 2 3/4
son4ous [18]
It's about 3 (3 13/33) to be exact 
7 0
3 years ago
Read 2 more answers
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