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3 years ago

25. Simplify the following expression. Question 25 please

Mathematics

2 answers:

PtichkaEL [24]3 years ago

6 0

I hope this helps you

bearhunter [10]3 years ago

3 0

Answer:

3 -√5

Step-by-step explanation:

(√5 + 1) / (2 + √5)

Multiply top and bottom of the fraction by the conjugate of 2 + √5 which is 2 - √5.

By doing this we rationalise the denominator:

= (√5 + 1 ) * ( 2 - √5) / (2 + √5)(2 - √5)

= (√5 + 1 ) * ( 2 - √5)/ (4 - 2√5 + 2√5 - 5)

= (2√5 - 5 + 2 - √5) / (4 - 5)

= (√5 - 3) / -1

= 3 -√5

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3 years ago

A table is on sale for 65% off. the sale price is $154 . what is the regular price?

Yuliya22 [10]

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3 years ago

Camacho is buying a monster truck. The price of the truck is xxx dollars, and he also has to pay a 13\%13%13, percent monster tr

alexandr402 [8]

Although the information has been presented in a baffling way in this question, but I think I understood the expressions.

We have been given that price of monster truck is x dollars and there is an 13% monster truck tax.

We can express the monster truck tax amount as $\frac{13}{100}\times x = 0.13x$ .

Therefore, the total amount including tax will be $x+0.13x = 1.13x$ .

We can now match each statement with its equivalent expression as shown below

The price of Camacho’s new truck before tax = x

The amount of tax Camacho pays = 0.13x

Camacho’s total bill for the monster truck = 1.13x

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3 years ago

What is the quotient of 25.95 divided by 50.25? *

Ainat [17]

Answer:

Quotient: 2

Remainder: 0

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Write the equation of the quadratic function in standard form represented by the graph.

algol13

Answer:

y = x^2 +6x+8

Step-by-step explanation:

First find the zeros, -4 ,-2

y =a (x - -4) (x - -2)

y = a(x+4)(x+2)

Then it is multiplied by a constant so pick a point on the curve and solve for the constant

We will use (0,8)

8 = a(0+4)(0+2)

8 = a(8)

a =1

y = (x+4)(x+2)

Writing in standard form

FOIL

y = x^2 +2x+4x+8

y = x^2 +6x+8

6 0

3 years ago