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2 years ago

Which of the following polynomial is a quadratic polynomial: (i)x²-7x+2 (ii) 7x²-x(x+2) (iii) 2x (x+5)+1 (iv) 2x-1

Mathematics

1 answer:

SSSSS [86.1K]2 years ago

8 0

Answer:

(iii)2x (x+5)+1 I guessss.....

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Work out the volume of this sphere?

Gekata [30.6K]

Step-by-step explanation:

$v = \frac{4}{3} \pi {( \frac{19}{2} )}^{3} \\ v = \frac{4}{3} \pi \: 857.375 = 3591.364 \\ = 3591.4 \: {cm}^{3}$

6 0

3 years ago

For a sequence an=3/n(n+1) what is the value of a 10

FrozenT [24]

Answer:

$\large\boxed{a_{10}=\dfrac{3}{110}}$

Step-by-step explanation:

Put <em>n = 10</em> to the equation $a_n=\dfrac{3}{n(n+1)}$

$a_{10}=\dfrac{3}{10(10+1)}=\dfrac{3}{10(11)}=\dfrac{3}{110}$

3 0

3 years ago

Read 2 more answers

Using appreciate property -2/3 × 3/5 + 5/2 - 3/5 × 1/6

o-na [289]

Answer:

The answer for your question is 2.

Step-by-step explanation:

5 0

3 years ago

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In the diagram below, triangle abc ~ triangle dec . What is the value of x? A. 28 b. 24 c. 22 d. 26

Lesechka [4]

Answer:

Option A.

Step-by-step explanation:

From the figure attached,

Given : ΔABC ~ ΔDEC

By the property of similarity,

"Corresponding sides of the similar triangles are proportional"

$\frac{\text{AB}}{ED}=\frac{BC}{EC}=\frac{AC}{DC}$

Since, $\frac{\text{AB}}{ED}=\frac{AC}{DC}$

$\frac{42}{6}=\frac{x}{(32-x)}$

6x = 42(32 - x)

6x = 1344 - 42x

6x + 42x = 1344

48x = 1344

x = $\frac{1344}{48}$

x = 28 units

Therefore, Option (A). x = 28 units will be the answer.

4 0

3 years ago

Malik deposited 1050 in a savings account and it earned 241.50 in simple interest after four years. Find the interest after four

kap26 [50]

Answer:

if it's true simple interest then each year's interest is the same so interest for one year is a quarter of 241.50 which give you the rate but if each year's interest in left in the account the result will be different , it is a really poorly worded question

7 0

2 years ago

Which of the following polynomial is a quadratic polynomial: (i)x²-7x+2 (ii) 7x²-x(x+2) (iii) 2x (x+5)+1 (iv) 2x-1​

Which of the following polynomial is a quadratic polynomial: (i)x²-7x+2 (ii) 7x²-x(x+2) (iii) 2x (x+5)+1 (iv) 2x-1