All categories

3 years ago

Explain how (-3) x (-3) = 9 using coupons as the real world example

Mathematics

2 answers:

klasskru [66]3 years ago

7 0

Answer:

a negative multiplied by a negative is always a positive

Step-by-step explanation:

so, -3 x -3 =9

iVinArrow [24]3 years ago

4 0

If you use two coupons that are each for $3 off, you will have saves a total of 9 dollars... hope this helped

You might be interested in

6th grade math please help

Digiron [165]

Answer:

3/14

Step-by-step explanation:

6/7 ÷ 4

Copy dot flip

6/7 * 1/4

Rewriting

6/4 * 1/7

Divide the top and the bottom of the first fraction by 2

3/2 * 1/7

3/14

8 0

3 years ago

Read 2 more answers

Please only 2 minutes. this is late now and i need it done NOW. no files i’m so stressed rn

tia_tia [17]

In great east japan a tsunami happened

5 0

3 years ago

A bucket contains one green block, one red block, and two yellow blocks. You choose one block from the bucket.

nalin [4]

A. 1/4; 2/4=1/2; 1/4
b. 1
c. 3/4. There are 4 blocks and 3 are not red
d. 1/4+3/4= 4/4=1

8 0

3 years ago

Which equation represents the circle described? (in picture)

Sedaia [141]

You are right. In circle equation we have =r² so the correct answer will be C od D. But we have to calculate the center of a circle.

$x^2+y^2-8x-6y+24=0\quad|-24\\\\(x^2-8x)+(y^2-6y)=-24$

Complete the square:

$x^2-8x+a^2\implies a=\dfrac{8x}{2x}=4\implies x^2-8x+4^2\\\\\\y^2-6y+b^2\implies b=\dfrac{6y}{2y}=3\implies y^2-6y+3^2$

And we have:

$(x^2-8x)+(y^2-6y)=-24\\\\(x^2-8x+4^2)-4^2+(y^2-6y+3^2)-3^2=-24\\\\
(x-4)^2+(y-3)^2-16-9=-24\\\\(x-4)^2+(y-3)^2-25=-24\quad|+25\\\\\boxed{(x-4)^2+(y-3)^2=1}$

So the answer is C (the same left side of equation).

6 0

3 years ago

Find the equation of the line. y=?x+? lol helppp please

Romashka-Z-Leto [24]

Answer:

y=3/4x+(-2) aka the first blank is 3/4 the second blank is -2

Step-by-step explanation:

The first blank is the slope, the second one shows the y-intercept. You are welcome

6 0

3 years ago