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4 years ago

10.5 equal or less than 10.005

Mathematics

1 answer:

maksim [4K]4 years ago

5 0

10.5 is more than 10.005

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So idk how to do this one 8+1/10+1 1/5 step by step please

sukhopar [10]

Answer: 9.3

Step-by-step explanation:

3 0

3 years ago

How many real solutions does this system of equations have? x2+y2=363x−y+1=0 A. 0 B. 3 C. 2 D. 1

Rus_ich [418]

Answer:

Correct option: C -> 2

Step-by-step explanation:

The first equation is:

$x^2+y^2=363$

And the second equation is:

$x-y+1=0$

From the second equation, we have:

$y = x + 1$

Using this value of y in the first equation, we have:

$x^2 + (x+1)^2 = 363$

$x^2 + x^2 + 2x + 1 = 363$

$2x^2 + 2x= 362$

$x^2 + x - 181 = 0$

Calculating the discriminant Delta, we have:

$\Delta = b^2 - 4ac = 1 + 4*181 = 725$

We have $\Delta > 0$ , so we have two real values for x, therefore we have two solutions for this system.

Correct option: C.

(If the system of equation is actually:

$x^2+y^2=36$

$3x-y+1=0$

We would have:

$y = 3x + 1$

$x^2+(3x+1)^2=36$

$x^2+9x^2+6x+1=36$

$10x^2+6x-35=0$

$\Delta = 36 + 1400 = 1436$

We also have $\Delta > 0$ , so we have two solutions for this system.

Correct option: C.)

3 0

3 years ago

Name the property of equality that justifies the statement: if a+b=c, then a=c-b

SashulF [63]

1. a = b means a is equal to b.
2. a ≠ b means a does not equal b.Operations1. Addition: If a = b then a + c = b + c.2. Subtraction: If a = b then a – c = b– c.
3. Multiplication: If a = b then ac = bc.
4. Division: If a = b and c ≠ 0 then a/c = b/c.

7 0

3 years ago

23. The diagonal of a rectangle is 17 cm and its perimeter is 46

balandron [24]

Answer:

120 cm

Step-by-step explanation:

Find the solution below.

8 0

3 years ago

Bruce has 97 sports cards. 34 of them are football cards. Which equation can be used to find the number of sports cards y that a

balandron [24]

97 = 34+y. Is this what you are asking for?

3 0

4 years ago