3 years ago

How to solve ...Please and thank you -5y^2=105

Mathematics

1 answer:

Dmitriy789 [7]3 years ago

5 0

$- 5 {y}^{2} = 105 \\\Leftrightarrow {y}^{2} = - 21 \\ \Leftrightarrow y = i \sqrt{21}$

You might be interested in

A total of 1,650 boxes of Girl Scout cookies were sold last week. Each large box cost $3.50 and each small box cost $2.00. The G

s344n2d4d5 [400]

Answer:

900 large boxes were sold, and 750 small boxes.

Step-by-step explanation:

This question can be solved by a system of equations.

I am going to say that:

x is the number of large boxes of cookies sold.

y is the number of small boxes of cookies sold.

A total of 1,650 boxes of Girl Scout cookies were sold last week.

This means that

$x + y = 1650$

$x = 1650 - y$

Each large box cost $3.50 and each small box cost $2.00. The Girl Scout group earned $4,650.

This means that

$3.5x + 2y = 4650$

Since $x = 1650 - y$

$3.5(1650 - y) + 2y = 4650$

$5775 - 3.5y + 2y = 4650$

$1.5y = 1125$

$y = \frac{1125}{1.5}$

$y = 750$

$x = 1650 - y = 1650 - 750 = 900$

900 large boxes were sold, and 750 small boxes.

8 0

3 years ago

What is the value of 'y' in <br> x = 2y + 6

irina1246 [14]

Answer: (x-6)/2

Step-by-step explanation:

x=2y+6

x-6=2y

(x-6)/2=y

y=(x-6)/2

5 0

3 years ago

The cost of renting a car for a day is given by the linear function C(x)=0.09x +27, where C(x) is in dollars and x is the number

gulaghasi [49]

Answer:

C(x) = 38.7

Step-by-step explanation:

C(x)= 0.09(130)+27

C(x)= 11.7+27

C(x)= 38.7

4 0

3 years ago

Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year.

Ket [755]

Answer:

The correct answer is C) f(x) = 1,200(0.97)/\x

Step-by-step explanation:

Hope this helps! :)

4 0

3 years ago

Can Someone Help me, pls?

vesna_86 [32]

Answer:

6.25 <7

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

How to solve ...Please and thank you ​-5y^2=105

How to solve ...Please and thank you -5y^2=105