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3 years ago

Plz help not much!!!!! Plz be correct I don’t wanna fail

Mathematics

2 answers:

hjlf3 years ago

7 0

Answer:

of course not

Step-by-step explanation:

use Pythagoream thereom

12^2 + 14^2 does not equal 25^2

wolverine [178]3 years ago

3 0

Answer:

yes it is a right triangle

Step-by-step explanation:

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rolando had 4 pounds of apples and he roland.let his friend Bernardo eat 1/4 of the apples .how many pounds of apples did Bernar

Alex73 [517]

Answer:

Bernardo ate 1 pound of apples

Step-by-step explanation:

4 pounds total

divide it into fourths

4 divided by four is 1

Bernardo ate 1/4 of the total 4

so he ate 1 pound

5 0

3 years ago

Read 2 more answers

When writing 3.7272727272... as a ratio of integers, what is the common ratio?

Law Incorporation [45]

The answer is: "41 / 11 " ; or, write as: " 41 : 11 " .
__________________________________________________________
Explanation:
__________________________________________________________
72/99 = (72÷9) / (99÷9) = 8/ 11 .

So, 3.727272727272... = "3 $\frac{8}{11}$ " .

→ "3 $\frac{8}{11}$ " = [(11 *3) + 8] / 11 = (33 + 8) / 11 = 41 / 11 .
__________________________________________________________
"41 / 11" cannot be simplified any further; so the answer is:
__________________________________________________________
"41 / 11 " ; or, write as: " 41 : 11 " .
__________________________________________________________

5 0

3 years ago

Simplify the expression: -10(3x-6) ————— 3

Ahat [919]

Answer:

19/1 or 1.9

Step-by-step explanation:

6 0

3 years ago

828 is 9/10— of which number?

mixer [17]

Answer: 920

Step-by-step explanation:

828 divided by 0.9 will give you the answer

6 0

3 years ago

how do you rewrite : y=x^2-5x+9 in standard form using complying the square? I keep getting to : x^2-5x-25/4 but I’m not allowed

yawa3891 [41]

I presume with this you meant to say you want this equation in general form, also known as vertex form, which is y = a(x - h)² + k, instead of standard form, which is y = ax² + bx + c, which is what the original equation is already in.

So with completing the square, you first have to isolate the x-terms. To do this, subtract 9 on both sides of the equation:

$y-9=x^2-5x$

Next, we want to make the right side of the equation a perfect square. To find the constant of this soon-to-be perfect square, divide the x-coefficient by 2 and square that quotient. In this case:

$-5\div 2 = -\frac{5}{2}\\\\(-\frac{5}{2})^2=-\frac{5}{2}\times-\frac{5}{2}=\frac{25}{4}$

Now add 25/4 on both sides of the equation:

$y-9+\frac{25}{4}=x^2-5x+\frac{25}{4}$

Now to combine -9/1 and 25/4, they must have the same denominator, and to find it you must find the LCD, or lowest common denominator, of 1 and 4. To find it, list the multiples of both and the lowest one they share is their LCD. In this case, the LCD is 4. Multiply both sides of -9/1 by 4/4 and then add the numerators up:

$-\frac{9}{1}\times \frac{4}{4}=-\frac{36}{4}\\\\-\frac{36}{4}+\frac{25}{4}=-\frac{11}{4}\\\\y-\frac{11}{4}=x^2-5x+\frac{25}{4}$

Next, we need to factor the right side of the equation. Using this format of $a^2-2ab+b^2=(a-b)^2$ , we can factor it as:

$y-\frac{11}{4}=(x-\frac{5}{2})^2$

Now lastly, add both sides by 11/4, and your final answer will be $y=(x-\frac{5}{2})^2+\frac{11}{4}$ 

8 0

4 years ago