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Pachacha [2.7K]
2 years ago
15

Simply each expression by combining like terms. -7W + 2W - 12W-W

Mathematics
1 answer:
tensa zangetsu [6.8K]2 years ago
3 0

Answer:

answer is in the box. I hope that helps! :)

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What is 40 ÷299<br><br><br><br> I will mark u as brainlest
laila [671]

Answer:

0.1338 to the nearest ten thousandth.

Step-by-step explanation:

40 / 299

= 0.1337792642

4 0
3 years ago
Read 2 more answers
What two numbers multiply to -8 and add to -4
Ronch [10]

Answer:

  -2-2√3, -2+2√3

Step-by-step explanation:

Let x represent one of the numbers. Then the other number is -4-x. We want the product to be -8:

  x(-4-x) = -8

  -4x -x^2 = -8 . . . . . eliminate parentheses

  x^2 +4x = 8 . . . . . . multiply by -1

  x^2 +4x +4 = 12 . . . add 4 to complete the square

  (x +2)^2 = 12

  x +2 = ±√12 = ±2√3

  x = -2±2√3

The two numbers are -2-2√3 ≈ -5.4641, and -2+2√3 ≈ 1.4641.

7 0
3 years ago
Find the perimeter of A(-3,2), B(6,6), and C(7,-1).<br><br>Please show work.
Furkat [3]

AB=√{(6+3)²+(6-2)^2}=√(81+16)=√(97)

BC=√((7-6)²+(-1-6)²)=√(50)=5√2

AC=√((7+3)²+(-1-1)²)=2√(26)

Perimeter=AB+BC+AC=√97+5√2+2√(26)

3 0
2 years ago
Part A: An angle is two collinear rays with a common endpoint. Find an example that contradicts this definition. How would you c
nata0808 [166]

Angles are formed by intersection of non-collinear lines, rays and planes.

<u>Part A</u>

<u>1. Contradictory Example</u>

A contradictory example to the given definition is that:

When the rays are collinear; the rays do not form an angle, but they form a line

<u>2. A more accurate definition</u>

A more accurate definition is that:

An angle is formed at the intersection of two non-collinear rays that have the same endpoint

<u>Part B</u>

<u>Example of an undefined term</u>

Undefined terms do not have a formal definition; an example is the plane.

A plane pertains to angles because it determines the parameter to be measured.

Read more about angles and undefined terms at:

brainly.com/question/1402901

8 0
2 years ago
The variable z has a standard normal distribution. find the value z such that the event z &gt; z has proportion 0.08. z = –1.41
andrezito [222]

The appropriate choice is z = 1.41.


The empirical rule tells you 68% of the distribution is within 1 standard deviation, so p(z > 1) ≈ 0.17. This means the z value is more than 1 for the probability to drop to 0.08. The only choice that is greater than 1 is 1.41. (The number is actually about 1.40507.)

3 0
3 years ago
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