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maksim [4K]
3 years ago
13

QUESTION 20 PLEASE HELPPPP ASAPPPP

Mathematics
1 answer:
WARRIOR [948]3 years ago
4 0

Answer: x=-1, y=-8

Step-by-step explanation: solve for the first variable in one of the equations then subsitutte the result into the other equation

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Please help fill in the blanks
Wewaii [24]

Answers:

Reason 4: Isosceles triangle

Reason 5: Segment Addition Postulate

Reason 6: Segment Addition Postulate

Reason 7: Substitution

Reason 8: Substitution

Reason 9: Subtraction property of equality

Reason 10: Definition of congruence

Reason 11: Vertical Angles Theorem

Reason 12: Vertical Angles Theorem

Reason 13: ASA (angle side angle) congruence theorem

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

Explanations:

Reason 4: Triangle DCE is an isosceles triangle because of statement 1 of the proof table. The congruent base angles lead to congruent opposite sides.

Reason 5 and 6: This is the idea of breaking any segment into smaller pieces. The smaller pieces glue back together to get the larger original segment.

Reasons 7 and 8: Substitution is a math term which means "replacement". So for instance, in line 7 we started with DB = DC + CB (from line 6), then we replaced the "DB" with "DF" (see line 3); and then replaced "DF" with "DE+EF"

Reason 9: In this step, we subtract DE from both sides to have it go away and cancel out

Reason 10: If two lengths are equal, then the segments are congruent

Reason 11 & 12: Two angles are vertical if they are opposite from one another after forming from two lines crossing. Think of an X shape. Vertical angles are congruent.

Reason 13: We have two pairs of congruent angles, and a pair of congruent sides. The sides are between the angles. The order is important. See the attached image below.

3 0
3 years ago
In a scale model of a television, 1 centimeter represents 5 inches.
Thepotemich [5.8K]

Answer:

a)8cm

b)30inches

Step-by-step explanation:

5 0
2 years ago
50 + 78 + 4/5r = 180
g100num [7]

Answer:

r= 1/65

explanation in pics

6 0
3 years ago
What is the slope between y=3.20x+9 simplified
sattari [20]

Answer:

3.20

Step-by-step explanation:

Intercept form of a line : Y = mx + b

m = y2 - y2 / x2 - x1 ....use this to find the slope whenever 2 points are given.

In this case it's directly given.

6 0
2 years ago
Add the following fractions and reduce to lowest terms. (Enter a reduced fraction.)
Anna007 [38]
0.52777777777 this is your answer
8 0
2 years ago
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