1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Levart [38]
2 years ago
11

Pls help me i will mark as brilliantpls write the step​

Mathematics
1 answer:
djyliett [7]2 years ago
4 0

1a) Firstly, lets start by expanding the brackets. x × x is x². So x(x+1) = x² + x. Then we do the second part. 2 × x = 2x and 2 × 1 = 2. Now we have

x² + 3x + 2.

Now what we do is simplify through quadratic formula. We look at the last digit which is 2. What two numbers multiplies to give you 2? 2 and 1. 2 x 1 = 2 and 2 + 1 = 3. Our second number is 3 so this is the right amount. so now we just put the two factors together. (x + 1)(x+2). This is the answer.

b) I have explained above and so am just gonna write the answers. After expanding we get x² + 2x + 1. We get simplify to

= (x + 1)(x+1)

c) y² + 3y + 4. This cannot be simplified into the format so we leave it like this.

d) = 0.

Have a go at the last ones by yourself, if you still need help, I am available!

You might be interested in
Please Help!!!!!!!!!!
Fantom [35]
B because first you do the two triangles which =3 then you get the area for the square in the middle which is 15 then you add them up to get 18
5 0
3 years ago
Read 2 more answers
A pair of jeans was 30% off the original price. The sale resulted in a $24 discount.
Natalija [7]

Answer:

Step-by-step explanation:

We must consider the price of the Jeans as whole since it represents the full price of the jeans. The discount might be a limited only offer and does not represent the fullest price of the jeans.

To find the original price of the jeans we have two methods that in the end are going to lead to the same conclusion. The long method is to represent mathematically the information presented. Conceptually, we could interpret the statement saying that the original price minus 30% of the original price is equal to the original price minus the discount. Let us say the Original Price (OP)=x. then, mathematically we represent the statement as:

x -0,3*x = x -24

What we need to do now is to isolate x on one side of the equation. We have x as a common factor, so:

x*(1-0,3)=x-24 \rightarrow 24+x*0,7=x

24=x-0,7*x \rightarrow 24 = x*(1-0,7)

24 = 0,3*x \rightarrow 24/0,3 =x \rightarrow x=80

This one is the original price of the jeans: $80. There is a shortcut to this method, though. We know two things that are fundamental: the discount sale is $24 and the jeans are 30% off. These statements provide the same information; thus we can match them and say that:

24 = 0,3*x \rightarrow 24/0,3 =x \rightarrow x=80

And we find ourselves on the same conclusion.

Have a wonderful day :D

8 0
3 years ago
15 total kids were at the park. 6 of them were girls. What % of the kids were girls?
Vikentia [17]

Answer:

40%

Step-by-step explanation:

6/15 = 0.4

0.4 * 100 = 40%

4 0
2 years ago
Read 2 more answers
Divide 120 in the ratio of 1:2
antiseptic1488 [7]

Ratio given 1:2

Let's suppose the ratio as x : 2x

Adding the ratio = 3x

\frac{x}{3x}  \times 120 \\ =40

\frac{2x}{3x}  \times 120 \\= 80

40 and 80 are in the ratio 1:2 of 120.

Hope it helps!!!

7 0
3 years ago
Read 2 more answers
If angle AEB has its vertex on the center of a circle and its endpoints on the circle, what is it?
Inessa [10]
1. Vertex E is the center of the circle, A and B are on the circle.

2. Any angle with these properties (i. E is center, AE and AB are radii) is called a central angle.

3. Check the picture. 

4. An important property of these angles is that the measure of the arc AB = m(AEB)

3 0
3 years ago
Other questions:
  • Please help thank you
    5·1 answer
  • ivan earns 8$ each time he walks his neighbors dog. He already walked the dog 5 times. how many more times does he need to walkt
    15·2 answers
  • How do I solve <br>-6= -9/u
    11·1 answer
  • s the line for the equation y = −8 horizontal or vertical? What is the slope of this line? Select the best answer.
    5·1 answer
  • I need HELP ..............
    5·2 answers
  • noah goes to the store with $40 .he spend 38.60 on 13 bags of popcorn. how much one bag of popcorn cost ?
    8·1 answer
  • Which of the following values represents an index of refraction of an actual material? A. 1.25 B. 0 C. .25 D. .5
    15·1 answer
  • How do you factor 0 = 4x2 + 2x – 30?
    6·2 answers
  • A line segment AB has the coordinates A (2,3) AND B ( 8,11) answer the following questions (1) What is the slope of AB? (2) What
    9·1 answer
  • Mr.Williams' physical education class lasts 7/8 hours. How many minutes are not spent on instructions? playing game:1/2, instruc
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!