MATHEMATICS HIGH SCHOOL

Gabrielle's age is two times Mikhail's age. The sum of their ages is 27. What is Mikhail's age?

Answers

Answer 1

Answer:

Let Gabrielle's age be = x years

Let Mikhail's age be = y years

As given, Gabrielle's age is two times Mikhail's age

$x=2y$

The sum of their ages is 27

$x+y=27$

Putting x=2y, we have,

$2y+y=27$

$3y=27$

y=9

As x+y=27, x=18

Hence, Gabrielle's age is 18 years

Mikhail's age is 9 years.

Answer 2

Answer:

Gabrielle is 18 and Mikhail is 9

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Answer:

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What are the roots of the quadratic equation 0= 8x^2+14x ?

Answers

8x^2+14x=0
Take 2x as a common factor:
2x(4x+7)=0
Take 2 cases:
2x=0 or 4x+7=0
2x=0 x=0
4x+7=0 4x=-7 x=-7/4

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Hope this helps :)

there are only 7 days left until the launch of our new product and we only have 668.00 left in our promotion budget .we need to spend 85.00 on the last day .can you please calculate how many dollars a day we can spend on the remaining days?

Answers

In total, you have $668.00.
To reserve enough for the last day, you need to subtract the last day's budget:
$668.00-85.00=583.00$
This means that, for the remaining 6 days in the week, you have $583.00.
Assuming an equal amount is being spent each day, you can calculate the daily budget by dividing the remaining total by the number of days left.
$(583)/(6) =97.16$
To avoid going over budget, you can spend $97.16 per day for the other six days.

Hope this helps!

668-85=583
583/6=97.1666
He can spend 97.16 on the remaining days.

What conic section does the equation x2 + y2 – 4y – 1 = 0 represent?ellipse

hyperbola

circle

parabola

Answers

The conic section that the above equation represents is a CIRCLE.

Use completing the square for y and put the equation in standard form:
x²+ y² - 4y + [(-4)/2]² - 1 = 0 + [(-4)/2]²
x² + y² - 4y + (-2)² - 1 = 0 + (-2)²
x² + y² - 4y + 4 - 1 = 4
x² + (y - 2)² - 1 = 4
x² + (y - 2)² = 4 + 1
x² + (y -2)² = 5

The radius of the circle is the square root of 5. Its center is found at (0,2)

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Answers

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$\n \n =\frac { 1 }{ { \left( 2x \right) }^( 16 ) } \n \n =\frac { 1 }{ { 2 }^( 16 ){ x }^( 16 ) } \n \n =\frac { 1 }{ 65536{ x }^( 16 ) }$

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What is the value of sin x° and cos y°? What relationship do the ratios of sin x° and cos y° share?

Answers

Hello,

sin² x+cos²x=1

Answer:

The ratios are identical

Step-by-step explanation:

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