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galben [10]
2 years ago
10

What is 12+ n means in verbal expression

Mathematics
1 answer:
Mandarinka [93]2 years ago
5 0

the sum of 12 and a number/n

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A direct variation function contains the points (-9,-3) and (-12,-4). which equation represents the function?​
Tomtit [17]

Answer:

y = x/3

Step-by-step explanation:

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Combine the like terms to make a simpler expression -k - (-8k)
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<span> -k - (-8k) = -k + 8k = 7k</span>
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Given: PS=RT, PQ=ST<br> Prove: QS=RS
ivanzaharov [21]

Answer:

I) Eq(1) reason: sum of segments of a straight line

II) Eq(2) reason: Given PQ = ST & PS = RT

III) Eq(3) reason: sum of segments of a straight line

IV) Eq(4) reason: Same value on right hand sides of eq(2) and eq(3) demands that we must equate their respective left hand sides

V) Eq(5) reason: Usage of collection of like terms and subtraction provided this equation.

Step-by-step explanation:

We are given that;

PS = RT and that PQ = ST

Now, we want to prove that QS = RS.

From the diagram, we can see that from concept of sum of segments of a straight line we can deduce that;

PQ + QS = PS - - - - (eq 1)

Now, from earlier we saw that PQ = ST & PS = RT

Thus putting ST for PQ & PS for RT in eq 1,we have;

ST + QS = RT - - - - (eq 2)

Again, from the line diagram, we can see that from concept of sum of segments of a straight line we can deduce that;

RS + ST = RT - - - - -(eq 3)

From eq(2) & eq(3) we can see that both left hand sides is equal to RT.

Thus, we can equate both left hand sides with each other to give;

ST + QS = RS + ST - - - (eq 4)

Subtracting ST from both sides gives;

ST - ST + QS = RS + ST - ST

This gives;

QS = RS - - - - (eq 5)

Thus;

QS = RS

Proved

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2 years ago
Simplify 7x^2+ 5x+4x answer pls
SIZIF [17.4K]

Answer:

7x^2+9x

Step-by-step explanation:

Hope this helps...

7x^2+(5x+4x)=

7x^2=9x

4 0
2 years ago
Read 2 more answers
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