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mariarad [96]
3 years ago
6

Solve for X. Show your work 2x + 6 = x - 5

Mathematics
1 answer:
irina1246 [14]3 years ago
8 0

2x + 6 = x - 5

2x - x = -5 - 6

x = -11 ← the end

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What is the product of a+3 and −2a2+15a+6b2?
zhannawk [14.2K]

Answer:

-2a³+9a²+45a+6ab²+18b²

Step-by-step explanation:

(a+3)(-2a²+15a+6b²)

Distribute the a:

-2a³+15a²+6ab²

Then distribute the 3:

-6a²+45a+18b²

Now add both of the results together:

-2a³+15a²+6ab²-6a²+45a+18b²

Combine like terms:

-2a³+9a²+45a+6ab²+18b²

8 0
2 years ago
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Old McDonald had 100 chickens and goats in the barnyard. Altogether, there are 264 feet. How many chickens and how many goats ar
Natasha2012 [34]
Well there are 200 chickens and 16 goats 
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3 years ago
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(х + 40)°<br> (2x + 20°<br> 3х<br> 6x"
kogti [31]

Answer:

Step-by-step explanation:

(х+40)°(2x+20°

3 0
2 years ago
In a hypothesis test, what should we conclude if the data would be very unusual if the original assumption about our parameter w
Triss [41]

We conclude  the hypothesis test as Alternative Hypothesis if the data would be very unusual if the original assumption about our parameter were correct.

  • A hypothesis in statistics is a claim or supposition on the properties of one or more variables in one or more populations. There are two hypothesis to choose between because a statement might either be true or wrong.
  • The null hypothesis is the assertion that we (or someone else) consider to be true. Our hypothesis test will come to one of two conclusions: "reject H0" or "do not reject H0." Remember that until data provide evidence to the contrary, we always proceed under the null hypothesis.
  • If the null hypothesis is incorrect, the alternative hypothesis must be true. The hypothesis test can be different in one of three ways: greater than, smaller than, or just different (not equal). As a result, there will always be an inequality requirement in the notation for H.

Learn more about Alternative hypothesis here: brainly.com/question/17173491

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4 0
1 year ago
PLS HELP ILL GIVE U BRAINLIST
SCORPION-xisa [38]
<h2>Answer:</h2>

B. |y| = 1.6

<h2>Step-by-step explanation:</h2>

A sketch of the vector is attached to this response.

As shown, the vector lies on the second quadrant and its horizontal and vertical components are given by x and y respectively.

Where;

|x| = v cos θ              -----------------(i)

|y| = v sin θ               -----------------(ii)

and

v = magnitude of the vector = 2.5km/hr

θ = angle that the vector makes with the +x axis = 90° + 50° = 140°

<em>To get the magnitude of the vector's vertical component</em>

<em>Substitute these values into equation(ii) as follows;</em>

|y| = 2.5 sin 140°

|y| =  2.5 x 0.6428

|y| = 1.607

|y| ≅ 1.6 km/hr

Therefore, the vertical component of the vector has a magnitude of 1.6 km/hr.

 

4 0
3 years ago
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