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3 years ago

Hi:) anyone able to explain how to find the value of a? Thank you:)

Mathematics

2 answers:

11111nata11111 [884]3 years ago

8 0

Answer:

Step-by-step explanation:

The vaulu of A oh! I know that the vaulu of A is Z! Hope this helps! Please give me brailyest!?

andreev551 [17]3 years ago

5 0

Answer:

a=2

Step-by-step explanation:

Please see attached picture for full solution.

Method 1: Substitute x with another number, other than the numbers that you have already tried. Zero is a good number to work with :)

Then, subst. the values of b and c which you have already found into the equation. Then simplify to arrive at your answer.

Method 2: Notice that when you expand the right hand side, only a(x)( ${x}^{2}$ ) can give you a $x^{3}$ term. Hence, compare the coefficients of ${x}^{3}$ on both sides. This method is quite safe since the value of a won't be affected in case the value of b and c is wrong.

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Which of the following polynomials has zeros at x = –4 and x = 7?

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3 years ago

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56,927.34 in expanded form

DanielleElmas [232]

Answer:

Step-by-step explanation:

Standard Form:

56,927.34

Expanded forms can be written like a sentence or stacked for readability as they are here.

Expanded Notation Form:

50,000

+6,000

+900

+20

+0.3

+0.04

Expanded Factors Form:

5 ×10,000

+ 6 ×1,000

+ 9 ×100

+ 2 × 0

+ 7 ×1

+ 3 ×0.1

+ 4 ×0.01

Expanded Exponential Form:

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+ 6 × 103

+ 9 × 102

+ 2 × 101

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A man sold a fan for Rs. 400. Find the cost price if he incurred a loss of 15%.

statuscvo [17]

Answer:

Cost price of the fan is $\text {Rs. 470.59}$ .

Step-by-step explanation:

Given: A man sold a fan for $\text{Rs.}\:400$ . He incurred a loss of $15\%$ .

To find: The cost price of the fan

Solution:

We have,

Selling price, S.P., of the fan $= \text{Rs.} 400$

Loss $=15\%$

We know that $\text {Loss\%}=\frac{\text{C.P.-S.P.}}{\text{C.P.}}\times100\%$

Now let the C.P. of the fan be $\text{Rs.} \:x$

So, $15=(\frac{x-400}{x})\times 100$

$\implies 15x=100x-40000$

$\implies 100x-15x=40000$

$\implies 85x=40000$

$\implies x=\frac{40000}{85}$

$\implies x= 470.59$

Hence, the cost price of the fan is $\text {Rs. 470.59}$ .

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