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tester [92]
3 years ago
7

Can someone help me please

Mathematics
2 answers:
Pavel [41]3 years ago
6 0
-8 that is the answere it was easy
Andre45 [30]3 years ago
3 0
The equation for this table is y = -4x + 17.
To find y when x = 0, plug in 0 for x and solve.
y = -4(0) + 17
y = 17
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The sum of the measures of angles for a triangle is 180°. Find the value of x and then the measures of the 3 angles
dmitriy555 [2]

Answer:

The value of x is 50

The measures of the 3 angles are 50°, 100°, 30°

Step-by-step explanation:

Let us solve the question

∵ The sum of the measures of the angles of a triangle is 180°

∵ The measures of the 3 angles of the given Δ are x°, 2x°, (x - 20)°

→ Add them and equate the sum by 180

∴ x° + 2x° + (x - 20)° = 180°

→ Add the like terms

∵ (x + 2x + x) + (-20) = 180

∴ 4x - 20 = 180

→ Add 20 to both sides

∵ 4x - 20 + 20 = 180 + 20

∴ 4x = 200

→ Divide both sides by 4 to find x

∴ x = 50

∴ The value of x is 50

To find the measures of the 3 angles substitute x by 50 in their expressions

∵ The measure of one angle is x

∴ The measure of the 1st angle is 50°

∵ The measure of the 2nd angle is 2x

∴ The measure of the 2nd angle = 2(50)

∴ The measure of the 2nd angle is 100°

∵ The measure of the 3rd angle is (x - 20)

∴ The measure of the 3rd angle = (50 - 20)

∴ The measure of the 3rd angle is 30°

∴ The measures of the 3 angles are 50°, 100°, 30°

6 0
3 years ago
Your family is driving on vacation. You have been driving for 4 3/4 hours. You have another 2 2/4 hours before you arrive at the
ehidna [41]
7 hours and 15 minutes 
6 0
3 years ago
Can someone help me with my math homework please please please
german

Answer:

  25

Step-by-step explanation:

Put the numbers where the corresponding letters are, and do the arithmetic.

  3² +3·8 +2 -2·5

  = 9 +24 +2 -10

  = 25

7 0
3 years ago
19. The formula P = a + b + cgives the perimeter P of a triangle with side
vampirchik [111]

Answer:

33 + 56 + 65 = 154

3 0
2 years ago
Find x<br><br><br>A) 12<br><br>B) 13 <br><br>C) 11<br><br>D) 10
Soloha48 [4]

We know that the sum of arc ND and arc ML divided by 2 is equivalent to 6x + 23.

Thus, we can form an equation:

6x + 23 = (11x + 8 + 3x + 14)/2

Simplify:

6x + 23 = (14x + 22)/2

Simply again:

6x + 23 = 7x + 11

Subtract 6x from both sides:

23 = x + 11

Subtract 11 from both sides

x = 12

Option A, or x = 12

-T.B.

5 0
3 years ago
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