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Romashka [77]
2 years ago
8

Plzz solve the question ​

Mathematics
1 answer:
gulaghasi [49]2 years ago
5 0

Answer:

a.8x^2+18x+9

8x^2+(9+2)x+9

8x^2+2x+9x+9

2x(4x+1)+9(x+1)

(2X+9)+(4x+1)+(x+1)

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How I do this someone ples help I need help with 25 and 27.
marta [7]

Number 15 is no solution.

Number 27 is that x has to be between -2 or 2.

This could be explained as -2≤x≤2

8 0
3 years ago
How many number of terms does 5p^2-2p+3r have?
Helga [31]

Answer:

3 terms

Step-by-step explanation:

5p^{2} - 2p + 3r

It has 3 terms

They are as follows:

5p^{2}

-2p

and 3r

Hope this helps

plz mark as brainliest!!!!!

7 0
3 years ago
Estimate the perimeter of the figure to the nearest tenth.
Vlad [161]

Answer:

The Perimeter of the Figure to the nearest tenth is 18.7 units

Step-by-step explanation:

Please note I have attached an edited version of your sketch to aid my solution. Now this question can be solved in multiple ways. Here, we shall see one of them. Looking at the original sketch, we can see that the figure is actually a combination of a Triangle (Figure 1 in my sketch) and a rectangle (Figure 2 in my sketch). So we can simply find the sides of a Triangle and the sides of a Rectangle and add them. Perimeter on Figure 1:The Perimeter of a Triangle is given by the Sum of the three sides as:

AT=a+b+c

Perimeter on Sketched Figure:The perimeter of the total figure will be two sides of the triangle and the three sides of the rectangle (as the one adjacent between Fig. 1 and 2 can not be taken into account). Thus we need to find 5 different sides and add them together. Now since the figure is on a graph paper, we can read of the size of some sides, thus the left side of the triangle is  units and the base of the triangle is also  units. Now to find the last unknown side we can take Pythagorian theorem, since our triangle is a Right triangle, (i.e. one angle is 90°). Pythagoras states that the squared of the hypotenuse of a right triangle is equal to the sum of the squares of the other two legs of the triangle (where the hypotenuse side is always across the 90° angle. So here we can say that: where  is the hypotenuse and our unknown side. So plugging in values and solving for   we have: units.

Perimeter on Figure 2:

The Perimeter of the Rectangle is given by:

Ar=2(w+l)

3 0
2 years ago
Answer with at least 3-4 sentences. No fake answers lots of points
Rus_ich [418]

Answer:

4

Step-by-step explanation:

Calculation of the discriminant of the polynomial : x⋅2−4⋅x+5

1. Applying the formula to calculate the discriminant Δ=b2−4⋅a⋅c with : a=0, b=−2,c=5

2. Δ=(−2)2−4⋅(0)⋅(5)=4=4

3. The discriminant of the polynomial x⋅2−4⋅x+5 is equal to 4

5 0
3 years ago
A 27 foot plece of wire is connected
morpeh [17]
3 .......................
5 0
2 years ago
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