What is the product of -3x^2y and (5xy^2+xy)?

Answers

Answer 1

Answer: $-3x^2y * (5xy^2 +xy) =\n \n= -3x^2y \cdot 5xy^2 -3x^2y\cdot xy =\n \n=-3\cdot 5x ^(2+1)y^(1+2) -3x ^(2+1)y ^(1+1)=\n \n =-15x ^(3)y^(3) -3x ^(3)y ^(2)$

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Dimitri rode his bike 32 miles yesterday. He rode 12 4/5 miles before lunch and the rest of the distance after lunch. How far did he ride after lunch?

Answers

The answer is 19.2 miles.

Am I right?????/////

Answers

Yes u are right nice work

Sorry didn't see the whole questions

in a survey, 27% of people chose salads over a meat dish. In all, 81 people chose salads. How many people were in the survey?

Answers

Number of people that chose salad = 81
Percentage of people that chose salad over meat dish = 27%
Let us assume the number of people on the survey = x
Then
27% * x = 81
(27/100) * x = 81
27x = 81 * 100
27x = 8100
x = 8100/27
= 300
So a total of 300 people participated in the survey.I hope the procedure is clear enough for you to understand. Based on this method you can always solve similar types of problems without requiring any kind of help from outside.

Answer:

300

Step-by-step explanation:

27 is to 100 as 81 is to 300

80 POINTSSolve for x. Use the completeing the square method. x^2+8x=7

Answers

Answer:

x = -4 ±√23.

Step-by-step explanation:

x^2 + 8x = 7

(x + 4)^2 - 16 = 7

(x + 4)^2 = 23

x + 4 = ±√23

x = -4 ±√23.

Answer: The correct answer is C.

Step-by-step explanation:

⇒ $x^(2) +8x+16$

⇒ which is also, $(X+4x^(2) ) = 23$

⇒ So, $x + 4$ is a square root of 23.

⇒ Then, it could be positive or negative one:

So that's why the answer would be C.

* Mark me the Brainliest:)) Hope this helps:)

Carmen is an engineer making plans to run a rail line, represented by the transversal t, through a city.Parallel lines v and w are crossed by transversal t. Clockwise from top left, the angles formed with line v are 155 degrees, blank, blank, blank; with line w are 1, 2, 3, 4.

Examine Carmen’s rail plans to identify the measure of ∠1. The streets represented by lines V and W are parallel.

What is the mAngle1?
25°
35°
145°
155°

Answers

The measure of <1 is 25.

What is Parallel line?

The fundamental characteristics listed below make it simple to recognize parallel lines.

Straight lines that are always the same distance apart from one another are called parallel lines.
No matter how far apart they are from one another, parallel lines can never intersect.

Given:

The streets represented by lines V and W are parallel.

We need to determine the measure of ∠1.

As, Correspondingangles are those in the matchingcorners formed when a transversal line crosses two parallel lines.

Additionally, the size of the corresponding angles is consistently the same.

So, From the figure, the ∠1 and the other angle in the parallel line V with the measure of angle 155° are corresponding angles.

Thus, the measure of ∠1 is 155°

Learn more about Parallel line here:

brainly.com/question/15588762

#SPJ2

Answer:

155

Step-by-step explanation:

3+z=-19 true, false, or open

Answers

subtract 3 from both sides to get 3+z=-19 3+z-3=-19-3 z = -22 So it's only true when z = -22. This means that it's neither 100% true nor 100% false. So it's an open statement or sentence

First thing you would do is subtract 3 from both sides to get 3+z=-19 3+z-3=-19-3 z = -22 So it's only true when z = -22. This means that it's neither 100% true nor 100% false. So it's an open statement or sentence

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