3 years ago

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

3 0

(2x-4)(x+5) expand with indicated multiplication

2x^2+10x-4x-20

2x^2+6x-20

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Can someone help me on this

SCORPION-xisa [38]

Step-by-step explanation:

(a) n² + 3

First term = 1² + 3 = 4

Second term = 2² + 3 = 7

Third term = 3² + 3 = 12

Fourth term = 4² + 3 = 19

10th term = 10² + 3 = 103

(b) 2n²

First term = 2(1)² = 2

Second term = 2(2)² = 8

Third term = 2(3)² = 18

Fourth term = 2(4)²= 32

10th term = 2(10)² = 200

Hence, this is the required solution.

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3 years ago

What are the name of these angles? Are<br> they congruent or supplementary?

kumpel [21]

They are supplementary

4 0

3 years ago

What is the principal square root of 25?

Sladkaya [172]

Answer:

Step-by-step explanation:

Square root of 25 is 5 no matter the case.

4 0

3 years ago

Read 2 more answers

4. Given directed line segment CD, if point E divides CD three-fourths of the way from C to D, find the coordinates of E, then p

cricket20 [7]

Answer:

Point E is given by $\left ( \frac{3mx_1+4x_0}{7},\frac{3y_1+4y_0}{7} \right )$

Step-by-step explanation:

Let points C and D be $(x_0,y_0),\,(x_1,y_1)$ and let point E divides it in ratio $m:n$ .

Then coordinates of point E are given by $\left ( \frac{mx_1+nx_0}{m+n},\frac{my_1+ny_0}{m+n} \right )$

Put $m:n=3:4$

Point E is given by $\left ( \frac{3mx_1+4x_0}{3+4},\frac{3y_1+4y_0}{3+4} \right )=\left ( \frac{3mx_1+4x_0}{7},\frac{3y_1+4y_0}{7} \right )$

Now plot point E.

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3 0

4 years ago

Finn used cups of water to water 4 plants. Each plant received the same amount of water. How much water did each plant receive?

adoni [48]

Each plant received 4 fl oz of water if he used 1 cup.

4 0

4 years ago