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ddd [48]
2 years ago
11

Find the slope of the line passing through the points (-5,3) and (7,9)

Mathematics
1 answer:
Anna [14]2 years ago
7 0
I’m not sure I’ll see if I can get it
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Work out m and c for the line: y -4x= − 1
Lelu [443]

Step-by-step explanation:

y = 4x - 1 \\ m = 4 \\ c =  - 1

8 0
2 years ago
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Match the following reasons with the statement givem
ANEK [815]

Answer:

AAS(Angle-Angle-Side) postulate states that if two angles and the non-included side one triangle are congruent to two angles and the non-included side of another triangle, then the two triangles are congruent

In triangle RAS and triangle QAT

\angle R =\angle Q   [Angle]

AS =AT    [Side]                                       [Given]

By Base Angle Theorem states that in an isosceles triangle(i.e, AST), the angles opposite the congruent sides(AS =AT) are congruent.

⇒ \angle 5= \angle 6      [By base ∠'s of isosceles triangle are equal]

By definition of supplementary angles, if two Angles are Supplementary when they add up to 180 degrees.

\angle 4, \angle 5 are supplementary and \angle 6, \angle 7 are supplementary.

⇒\angle 4+ \angle 5 =180^{\circ} and

\angle 6+ \angle 7 =180^{\circ}  

Two \angle 's supplementary to equal \angle 's

\angle 4+ \angle 5 =\angle 6+ \angle 7

Since,  \angle 5 =\angle 6  

then, we get;

\angle 4 =\angle 7  [Angle]

then, by AAS postulates,

\triangle RAS \cong \triangle QAT

By CPCT[Corresponding Part of Congruent Triangles are equal]

RS = QT              Hence Proved!

7 0
3 years ago
How do you rewrite one and 2 thirds using twelfths
TiliK225 [7]

Answer:

1 2/3 = 1 8/12

Step-by-step explanation:

2/3 * 4/4 because 3*4= 12 is 8/12 hope this helps :)

3 0
2 years ago
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Novay_Z [31]

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x = - 8, y = 2

Step-by-step explanation:

x =  - 4y......(1) \\ x + 5y = 2....(2) \\ plug \: x =  - 4y \: in \: equation \: (2) \\  - 4y + 5y = 2 \\ y = 2 \\ plug \: y = 2 \: in \: equation \: (1) \\ x =  - 4(2) \\ x =  - 8\\

7 0
3 years ago
How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a
Margaret [11]
Suppose x quarts of the 50% solution 
0.5x+0.2*20=0.4(x+20)
0.5x+4=0.4x+8
0.1x=4
x=40
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3 years ago
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