4 years ago

How much is 4/5 of 5 dozen

Mathematics

2 answers:

ANTONII [103]4 years ago

5 0

Is should be 48 i think

vladimir2022 [97]4 years ago

4 0

48 is the answer :)

Good Luck!

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Subtract 7x^2−5xy+8y^2 from −2x^2−15xy+9y^2

Ghella [55]

Answer:

$y^2-10xy-9x^2$

Step-by-step explanation:

We want to subtract $7x^2 -5xy+8y^2$ from $-2x^2-15xy+9y^2$ .

We set up the subtraction problem as follows:

$(-2x^2-15xy+9y^2)-(7x^2-5xy+8y^2)$ .

We expand the brackets to obtain;

$=-2x^2-15xy+9y^2-7x^2+5xy-8y^2$ .

We regroup the terms to obtain;

$=9y^2-8y^2-15xy+5xy-2x^2-7x^2$ .

We now simplify to obtain;

$=y^2-10xy-9x^2$ .

4 0

3 years ago

Which rational number equals 0 point 4 with bar over 4? 2 over 10 2 over 9 4 over 10 4 over 9

lord [1]

$0.4444.... =\frac{4}{10-1} = \frac{4}{9}$

6 0

3 years ago

-3x^2-8x+7 help please

ale4655 [162]

For this equation we are factoring. When you do this. You get the answer of:

(-3x²+8x-7)

8 0

3 years ago

What must be the value of x?<br> 22.0<br> 25.0<br> 25.4<br> 37.2

allochka39001 [22]

Answer:

The answer should be 25.

Step-by-step explanation:

Since we can rule out 25.4 for being too high, and 22 for being too low, the answer must be 25

5 0

4 years ago

Read 2 more answers

How do I solve the quadratic equation by factoring? 2x^2+x=6

aliina [53]

Move the 6 to the other side:
2x^2 +x+6,
(x-3) (x+4)
x=3 and x=-4

5 0

4 years ago