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Talja [164]
2 years ago
15

Which of the following is another way to express the problem 1 - (-7)? 01-7 0 1+(-7) 0-1 + (-7) 0-1+7​

Mathematics
1 answer:
maria [59]2 years ago
4 0

Answer: 1 +(-7)

(The 2nd option)

Step-by-step explanation:

1+(-7) is what the first absolute value would turn into since everything in it turns to positive.

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Mary drove from her home to the library. After she left the library, she drove to the park. After that, she drove home. The map
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Subtract-2x^2-6x+10 from -2x +9
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-4x0 -6x -1

Step-by-step explanation:

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A building across the street casts a shadow that is 24 feet long. your friend is 6 feet tall and casts a shadow that is 4 feet l
julsineya [31]
I think the answer would be 12
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3 years ago
Solve for x please!!!!
AleksAgata [21]

11) Since the triangle has a pair of congruent base angles, it is an isosceles triangle which means that the two pairs of legs are congruent.

Make them equal to each other in an equation.

5x = x + 20

Subtract x from both sides.

4x = 20

Divide both sides by 4.

x = 5

12) The two legs are congruent so that means the base angles must be congruent. First find the measure of the base angles. Create an equation:

x + x + 50 = 180

Combine like terms.

2x + 50 = 180

Subtract 50 from both sides.

2x = 130

Divide both sides by 2.

x = 65

Now make the base angle plus x equal 180, because they form a straight line.

65 + x = 180

Subtract 65 from both sides.

x = 115

13) You know the vertex angle (top angle) is 90 degrees because it is supplementary to a right angle. The triangle is isosceles because the two legs are congruent, so make the base angles plus 90 add up to 180 in an equation.

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Combine like terms.

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5 0
3 years ago
PLEASE HELP SUPER EASY!!!
Effectus [21]

A1. 12 i.e option D

A2. 3n-7 i.e option A

A3. -6n+20 i.e option D

A4. -70 i.e option C

Step-by-step explanation:

aₙ = a₁ + (n - 1) × d  

aₙ = the nᵗʰ term in the sequence

a₁ = the first term in the sequence

d = the common difference between terms

Using the above formula to solve the first part, we have :

  • -8 = a₁ + (2-1) × 5
  • -13 = a₁
  • a₆ = -13 + (6-1) × 5
  • a₆ = 12

For the second part, we have :

  • aₙ = -4 + (n-1)×3
  • aₙ = -4 + 3n -3
  • aₙ = 3n-7

For the third part, we have :

  • a₁=14 ; d=-6
  • aₙ = 14 + (n-1)×(-6)
  • aₙ = -6n + 20

For the fourth part, we have :

  • aₙ = 14 + (15-1)×(-6)
  • aₙ = -70
7 0
3 years ago
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