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charle [14.2K]
3 years ago
10

X + 8 = -15 What does x= ???

Mathematics
1 answer:
lawyer [7]3 years ago
6 0

Answer: x=−23

Step-by-step explanation:

Let's solve your equation step-by-step.

x+8=−15

Step 1: Subtract 8 from both sides.

x+8−8=−15−8

x=−23

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Calculate the length of AB if A is the point (2,3) and B is the point (-2,0)
d1i1m1o1n [39]

Answer:

Formular for coordinate length:

length =  \sqrt{ {(x_{1}  - x _{2} )}^{2}  +  {(y_{1}  - y_{2})}^{2} }

In considerance of coordinates given of A and B

x _{1} \: \:  is \:  \: 2 \\ x_{2} \:  \: is \:  \:  - 2 \\ y_{1}  \: \: is \:  \: 3 \\ y_{2} \:  \: is \: \:  0

therefore substitute:

length =  \sqrt{ { \{2 - ( - 2) \}}^{2}  +  {(3 - 0)}^{2} }  \\  \\  =  \sqrt{ {(2 + 2)}^{2} +  {3}^{2}  }  \\  =  \sqrt{ {4}^{2} +  {3}^{2}  }  \\  =  \sqrt{16 + 9}  \\  =  \sqrt{25}  \\  \\ { \boxed{ \boxed{length  \:  \: is \:  \: 5 \: units}}}

5 0
3 years ago
Read 2 more answers
If two lines are parallel to each other. Does that mean they are equal to each other as well?
fomenos

Answer:

No.

Step-by-Step Explanation:

When two lines are parallel, they might or might not be equal. It is not necessary that they should be equal.

See the triangle below in which two lines are parallel to each other.

4 0
2 years ago
A group of hikers walks 2 miles east and then 1 mile north. After taking a break, they then hike 4 miles east to their final des
kodGreya [7K]

Answer:

Intensity of the vector is v= √37 ≈ 6.08 units and make angle ∡α ≈ 9.46° with east direction

Step-by-step explanation:

Required vector is consists of the two components

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We will use Pythagorian theorem to find intensity of the vector v

v∧2 = vx∧2 + vy∧2 => v = √vx∧2 + vy∧2 = √6∧2 + 1∧2 = √36+1 = √37 ≈ 6.08 units

The angle ∡α between vector and east direction we wil find with tanα

tanα = 1/6 => α = arc tanα = arc 1/6 => α ≈ 9.46°

Good luck!!!

7 0
3 years ago
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Aleks [24]
The answer for your problem is shown on the picture.

5 0
3 years ago
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PLZ HELPPPP!!!!!!!!!
Setler79 [48]
The answer is 1/3. :)
8 0
3 years ago
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