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expeople1 [14]
3 years ago
14

What is the solution set of equation ?

Mathematics
1 answer:
Vanyuwa [196]3 years ago
3 0

Answer:

Option 4

Step-by-step explanation:

You divide 1/2 by the whole problem

5x-15=20

and go from there its too long to explain but its option 4

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1/3(6z+7.2)=0.5(8z+2)-0.4 please hurry this is for now
Crazy boy [7]

Answer:

z = - 0.78

Step-by-step explanation:

Given:

1/3(6z+7.2)=0.5(8z+2)-0.4

Open parenthesis

2z + 2.4 = (4z + 1) - 0.4

2z + 2.4 = - 1.6z - 0.4

Collect like terms

2z + 1.6z = - 0.4 - 2.4

3.6z = -2.8

z = -2.8 / 3.6

= - 0.78

3 0
3 years ago
Find the volume of the cylinder.
hodyreva [135]

Answer:

i cant see the picture

Step-by-step explanation:

5 0
3 years ago
Which of the following appear in the diagram below?
borishaifa [10]
A,c and d appear in the diagram except b
a:< DCE
c: line CE
d: line AB
all of these are in it while
b:< CDE
is not present in it, because there is no anglethat is formed on d
3 0
3 years ago
Read 2 more answers
What is the area of the trapezoid? 30 square units 60 square units 90 square units 120 square units
Katen [24]

Area=a+b/2

30+60=90/120=3/4

8 0
3 years ago
Read 2 more answers
Factorise x squared + 4x + 3 ​
olganol [36]
<h3>Answer:  (x+1)(x+3)</h3>

===================================================

Explanation:

Let's assume it factors into (x+a)(x+b)

The goal is to find the two numbers a and b.

FOIL out (x+a)(x+b) to get x^2+(a+b)x+ab

Note how a+b is the middle term and ab is the last term.

In the original expression, 4 is the middle term and 3 is the last term.

So we need to find two numbers that

  • add to 4
  • multiply to 3

There are two ways to multiply to 3 and they are

  • 1 times 3 = 3
  • -1 times -3 = -3

But only the first way has the factors add to 4. So that means a = 1 and b = 3.

Therefore (x+a)(x+b) = (x+1)(x+3)

And x^2+4x+3 = (x+1)(x+3)

8 0
3 years ago
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