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hichkok12 [17]
4 years ago
13

What is the sum of seven and eight

Mathematics
2 answers:
kotegsom [21]4 years ago
7 0
15
lol that's the answer
sp2606 [1]4 years ago
7 0
Sum is adding so 7+8=15 if that's your question and difference is subtraction it's just the way the states say now instead of add or subtract
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Angel LMN has vertices L(-2, 4), M(3, 2), and N(1,-3). Which describe the triangle?
Nadusha1986 [10]

Triangle LMN has two sides that are of the same size, therefore, triangle LMN is described as: isosceles triangle.

<h3>What is an Isosceles Triangle?</h3>

A triangle with two equal sides and two equal base angles is described as an isosceles triangle.

<h3>What is the Distance Formula?</h3>

The formula for finding the distance between two coordinate points is called the distance formula, and it is expressed as: d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}.

Given the vertices of the angles of triangle LMN as:

  • L(-2, 4),
  • M(3, 2),
  • N(1,-3)

Use the distance formula to find the length of each side of the triangle.

LM = √[(3−(−2))² + (2−4)²]

LM = √[(5)² + (−2)²]

LM = √29 units

MN = √[(3−1)² + (2−(−3))]²

MN = √29 units

LN = √[(−2−1)² + (4−(−3))²]

LN = √(−3)² + (7)²]

LN = √(9 + 49)

LN = √58 units

Isosceles triangles have two equal sides. Triangle LMN has two sides that are of the same size, therefore, triangle LMN is described as: isosceles triangle.

Learn more about isosceles triangle on:

brainly.com/question/11884412

#SPJ1

5 0
2 years ago
Problem: According www.textrequest, an American between 18-24 sends and receives about 128 text messages per day. Assume that th
borishaifa [10]

Answer:

(130.08, 139.92)

Step-by-step explanation:

Given that:

Mean (m) = 135

Standard deviation (σ) = 30

Sample size (n) = 100

α = 90%

The confidence interval value is obtained using the relation:

Mean ± Zcritical * (standard deviation / sqrt(n))

Zcritical at 90% = 1.64

standard deviation / sqrt(n) = 30 / sqrt(100)

= 30 / 10 = 3

Hence,

135 ± 1.64 * (3)

Lower limit : 135 - (1.64 * 3) = 130.08

Upper limit : 135 + (1.64 * 3) = 139.92

Hence,

Confidence interval = (130.08, 139.92)

8 0
3 years ago
What is 1/2 of 900= ?
Eduardwww [97]
450 is your answer ......
6 0
3 years ago
Read 2 more answers
An earthquake with a magnitude of about 2. 0 or less is called a microearthquake. It is not usually felt. The intensity of an ea
Alecsey [184]

The intensity of an earthquake with a magnitude of 2 is 100 times greater than the intensity of an a standard earthquake .

<h3>What is magnitude of earthquake?</h3>

Magnitude of earthquake is the measure of the size of origin of the earthquake. The magnitude of the earthquake keeps the same value for each place.

An earthquake with a magnitude of about 2. 0 or less is called a micro-earthquake and not felt usually.The intensity of an earthquake with a magnitude of 2.

Let the intensity of this earthquake is <em>n </em>times greater than the intensity of an a standard earthquake. Thus the intensity of standard earthquake can be given as,

n=10^2\\n=100

If the magnitude would be 3 then the intensity would be,

n=10^3\\n=1000

It would be 1000 times greater than the standard earthquake and so on.

Thus, the intensity of an earthquake with a magnitude of 2 is 100 times greater than the intensity of an a standard earthquake .

Learn more about the magnitude of earthquake here;

brainly.com/question/18109453

8 0
3 years ago
Which expression is equivalent to 6x^5z^3/4x^4z^2?
Reika [66]
<span>4x^2y + 12xy^2 + 9y^3</span>
8 0
4 years ago
Read 2 more answers
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