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Alexandra [31]
2 years ago
5

Evaluate 4 + (m - n) When m = 7 and n = 5.

Mathematics
2 answers:
LUCKY_DIMON [66]2 years ago
7 0

Answer:

7 - 5 = 2

2 + 4 = 6

Evaluate parenthesis first.

Add 4 to the number you got from subtracting 7 and 5.

ziro4ka [17]2 years ago
4 0
1. substitute:
4+(7-5)
2. simplify:
4+2
3. evaluate:
6
the answer is 6.

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Name the postulate or theorem you can use to prove TKS=TLR
OlgaM077 [116]

Answer:

ASA postulate

Step-by-step explanation:

To prove two triangles are congruent, you need 3 congruent parts in one of the patterns ASA, AAS, SSS, or SAS. Place your pencil on one vertex of the triangle then trace the figure. As you come to each congruent part, write either A for angle or S for side depending on what the part is. After doing so, you will see the pattern A - S - A since a side is congruent between two angles.

8 0
3 years ago
Three houses are mapped on a coordinate grid.
Licemer1 [7]

Step-by-step explanation:

Let us consider the task to find the angle between vectors ES and EJ (the first letters are taken to name the vectors).

\overrightarrow{ES} = (4;4) - (4; -3) = \overrightarrow{(0; 7)}

ES

=(4;4)−(4;−3)=

(0;7)

​

\overrightarrow{EJ} = (-5; -4) - (4; -3) = \overrightarrow{(-9; -1)}

EJ

=(−5;−4)−(4;−3)=

(−9;−1)

​

cos \alpha=\frac{\overrightarrow{ES}*\overrightarrow{EJ}}{|\overrightarrow{EJ}|*|\overrightarrow{ES}|}cosα=

∣

EJ

∣∗∣

ES

∣

ES

∗

EJ

​

cos(a) = (0*(-9)+7*(-1)) / (7*9.055) = -0.11043;

a = 96,34°

Solution: 96 degrees.

6 0
3 years ago
HELP PLEASE. Two points are 17 units apart on a number line. The coordinate of one point is -20.
cluponka [151]

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Step-by-step explanation:

-20-17= -37

-20+17= -3

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