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irina [24]
4 years ago
11

Urgent sos!!! find x if triangle abc is congruent to triangle def

Mathematics
1 answer:
LenKa [72]4 years ago
8 0

If triangle ABC is congruent to triangle DEF, their interior angles are congruent, because congruent parts of congruent triangles are congruent (CPCTC).

That means ∠D is congruent to ∠A; ∠D is equal to 8x - 2.

Interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

Answer:

x = 11

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I need help on this ​
liubo4ka [24]

Absolute value represents a value's distance from <u>zero (0)</u> on the number line. It is expressed using a pair of <u>vertical</u> bars. In the order of operations, absolute value signs are considered like <u>parenthesis</u> and other grouping symbols. We complete the operations inside the absolute value signs <u>first</u> to get a single number. Then we take the absolute value of the number at the same time we evaluate <u>exponents</u> in the expression.

<h3>What is a number line?</h3>

A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numerical values (numbers) that are placed at equal intervals along its length.

<h3>What is an absolute value function?</h3>

An absolute value function can be defined as a type of function that consist of an algebraic expression, which placed within absolute value symbols.

<h3>The equation of an absolute value function.</h3>

Mathematically, the standard form of the equation for an absolute value function is given by:

y = a|x - h| +k.

Where:

h and k are the vertex of the graph.

<h3>The characteristics of an absolute value.</h3>

Absolute value represents a value's distance from <u>zero (0)</u> on the number line. Also, it is typically expressed using a pair of <u>vertical</u> bars. In the order of operations, absolute value signs are considered like <u>parenthesis</u> and other grouping symbols such as brackets.

Furthermore, you should complete the operations inside the absolute value signs <u>first</u> to get a single number. Then, you take the absolute value of the number at the same time when you evaluate <u>exponents</u> in the expression.

Read more on absolute value here: brainly.com/question/4838504

#SPJ1

4 0
2 years ago
will the contents of a cylindrical can of soup with a 1.5-inch radius and a 5-inch height fit into a pan with a 4-inch radius an
Anna007 [38]

Answer:

Answer: The volume of the soup can is less that that of the pan, so the soup will fit in the pan.

Step-by-step explanation:

a. V = s3

V = (7 km)3

V = 7 km × 7 km × 7 km

V = 343 km3

b. V = s3

V = (11 yd.)3

V = 11 yd. × 11 yd. × 11 yd.

V = 1,331 km cu. yd.

a. V = l × w × h

V = 6 m × 2 m × 3 m

V = 36 m3

b. V = l × w × h

V = 5 ft. × 10 ft. × 8 ft.

V = 400 cu. ft.

a. V = πr2h

V = 3.14 × (3 in.)2 × 3 in.

V = 3.14 × 9 sq. in. × 3 in.

V = 84.78 cu. in.

b. V = πr2h

V = 3.14 × (1 m)2 × 4 m

V = 3.14 × 1 m2 × 4 m

V = 12.56 m3

V = s3

V = (2 ft.)3

V = 2 ft. × 2 ft. × 2 ft.

V = 8 cu. ft.

Answer: The capacity of the ice chest is 8 cubic feet.

V = πr2h

V = 3.14 × (1 ft.)2 × 3 ft.

V = 3.14 × 1 sq. ft. × 3 ft.

V = 9.42 cu. ft.

Answer: The volume of the trash can is 9.42 cubic feet.

Closet #1

V = l × w × h

V = 4 ft. × 5 ft. × 8 ft.

V = 160 cu. ft.

Closet #2

V = l × w × h

V = 6 ft. × 3 ft. × 8 ft.

V = 144 cu. ft.

Compare the size of the closets

160 cu. ft. > 144 cu. ft.

Answer: The first closet is larger.

Both the can and the pan are cylindrical shapes. Compare the volumes of the two objects.

Volume of Can

V = πr2h

V = 3.14 × (1.5 in.)2 × 5 in.

V = 3.14 × 2.25 sq. in. × 5 in.

V = 35.325 cu. in.

Volume of Pan

V = πr2h

V = 3.14 × (4 in.)2 × 3 in.

V = 3.14 × 16 sq. in.× 3 in.

V = 150.72 cu. in.

35.325 cu. in. soup can < 150.72 cu. in pan

Answer: The volume of the soup can is less that that of the pan, so the soup will fit in the pan.

3 0
3 years ago
Which of the values satisfy the following inequality
Ira Lisetskai [31]

Answer:

  A:  x = 20

  C:  x = -9

Step-by-step explanation:

You can solve the inequality and compare that with the offered choices, or you can try the choices in the inequality to see if it is true. Either approach works, and they take about the same effort.

<u>Solving it</u>:

Unfold it ...

  -17 ≤ x -7.5 ≤ 17

Add 7.5 ...

  -9.5 ≤ x ≤ 24.5

The numbers 20 and -9 are in this range: answer choices A and C.

_____

<u>Trying the choices</u>:

A:  |20 -7.5| = 12.5 ≤ 17 . . . . this works

B:  |-10 -7.5| = 17.5 . . . doesn't work

C:  |-9 -7.5| = 16.5 ≤ 17 . . . . .this works

D:  |27-7.5| = 19.5 . . . doesn't work

The choices that work are answer choices A and C.

6 0
4 years ago
IVE ASKED THIS QUESTION 2 TIMES ALREADY, PLEASE HELP.
AleksAgata [21]
Answer:  The area of the triangle is:  " 118.3 " m² .
_______________________________________________________
<u>Note</u>:
_______________________________________________________
Area of a triangle, "A":

A = (1/2) * b * h ; 

in  which:   b = base length ;
                   h = perpendicular height; 

A = (1/2) * (18.2 m) * (13 m) ; 

A = 118.3 m² .
____________________________________________
6 0
3 years ago
A certain type of cell can double itself every hour, because it has a growth factor of 2. A laboratory has 15 of these cells.
harina [27]

Answer:

Second one

Step-by-step explanation:

Second choice.

Second one is growing by a factor of 2 because the exponent on 2 tells me that 2 is is being repeated as a factor.

If x=0 then 15*2^0=15(1)=15 which is what we have initially.

6 0
3 years ago
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