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bazaltina [42]
3 years ago
15

Solve simultaneous equations:

tle="y = x^{2} + 2x -5 " alt="y = x^{2} + 2x -5 " align="absmiddle" class="latex-formula"> and y =  2x + 1
Mathematics
1 answer:
stepan [7]3 years ago
8 0
I hope this helps you y=2x+1=x^2+2x-5 2x+1=x^2+2x-5 2x-2x+1+5=x^2 x^2=6 take square root two sides x=square root of 6 x=\/6 y=2x+1 y=2.square root of 6+1 y=2\/6+1
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At Brian’s Bookstore, 0.3 of the shelves hold mysteries, 25% of the shelves hold travel book and 7/20 of the shelves hold childr
elena-s [515]

Children books covers the most shelf space in the store

<em><u>Solution:</u></em>

From given,

Shelves that hold Mysteries = 0.3

Shelves hold travel book = 25 %

Shelves hold children’s books = \frac{7}{20}

To find: Type of book that covers the most shelf space in the store

You cannot compare values which are in different forms, so you need to convert.

Let us convert the given values into decimal form

Shelves hold travel book = 25 %

Percentage can be converted to decimal by dividing by 100

\rightarrow 25\% = \frac{25}{100} = 0.25

Shelves hold children’s books = \frac{7}{20}

\rightarrow \frac{7}{20} = 0.35

<em><u>Which type of book covers the most shelf space in the store?</u></em>

Now we have converted them into decimal form

Shelves that hold Mysteries = 0.3

Shelves hold travel book = 0.25

Shelves hold children’s books = 0.35

0.35>0.3>0.25

We can clearly see that, 0.35 is the highest decimal

Therefore, children books covers the most shelf space in the store

8 0
4 years ago
Find the volume of a cone with a base radius of 4 ft and a height of 6 ft. I really need help with this asap. I will give 10 poi
Artyom0805 [142]

Step-by-step explanation:

V=1/3 × πr²h

since H=6, R=4

V= π×(4)²×(6)/3

V=96π/3

V=32π

Note: ( we are not given the pie (π) value )

8 0
3 years ago
Read 2 more answers
The perimeter of a rectangular parking lot is 368 m.
r-ruslan [8.4K]

Answer:

98

Step-by-step explanation:86+86=172

368-172=196

196/2=98

7 0
2 years ago
Five times the sum of three times a number and 4 is -10, find the number.
Minchanka [31]

Answer:

-2

Step-by-step explanation:

5[3x+4)]=-10

15x+20= -10

15x=-30

x= -2

5 0
4 years ago
Q1:The number of students in a chess club decreased from 23 to 13. What is the percent decrease? Round your answer to the neares
nataly862011 [7]

Answer:

Step-by-step explanation:

23 x .565 = 12.995

12.995 rounded is 13.

So if the answer is .565, and you need to round to the nearest percent, it would be 57%.

5 0
3 years ago
Read 2 more answers
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