Ask question

Ask question

All categories

2 years ago

14

(-1)×(-2)×10=? (this is integers)

1 answer:

VLD [36.1K]2 years ago

8 0

Answer:the first one

Step-by-step explanation:

i am teacher lol

You might be interested in

Please help. Full explanation if you can.

sukhopar [10]

392 boots. If you divide everything into "sets" of an unknown amount, there are 5 more "sets" of boots than sandals, also known as the 245 boots. So if you divide 245 by 5, you'll get the number of items in a "set". Then just multiply by 8 from the 8:3 ratio. If you check it, it will come out to 392 boots to 147 sandals, which I think is ridiculous since sandals are supposed to come in pairs so you should never have a odd number. But anyway, 392 - 147 = 245

6 0

3 years ago

Factor completely 2x^2+4x-70

Fittoniya [83]

Answer: $2(x-5)(x+7)$ <---- $this$ $is$ $your$ $answer$

Step-by-step explanation:

( $2x^2+4x-70$ )

$2((x-5)(x+7))$

$(-1,-72)$

$(-1, -\frac{575}{8} )$

$x=-1$

$y=-\frac{577}{8}$

Factor the polynomial completely.

Group and factor out the greatest common factor (GCF), then combine.

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Up

So the answer is $2(x-5)(x+7)$

Hope this helps out :)

4 0

2 years ago

Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.

alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost $19.75.

$5x+2y=19.75 ---------- 1$

Two cupcakes and four cookies cost $17.50.

$2x+4y=17.50 --------------2$

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

$10x+4y=39.50-------3\\$

Subtract equation 2 from equation 3;

$10x-2x+4y-4y=39.50-8x=22$

$8x=22$

divide both sides by 8

$\frac{8x}{8} =\frac{22}{8} \\x=2.75$

Since we have the value of x, let substitute into equation 1 to get y;

$5x+2y=19.75\\5(2.75)+2y=19.75\\13.75+2y=19.75\\2y=19.75-13.75\\2y=6\\y=\frac{6}{2} \\y=3.00$

therefore , the cost of cupcakes and cookies are;

$cupcakes= 2.75\\cookies= 3.00$

PLEASE MARK ME AS BRAINLIEST

6 0

2 years ago

Pleasee can you give me the answer and explain how to do it for the future because I’ve been seeing this all day and I don’t kno

netineya [11]

Answer:

C . y(18x-9w-12) ..............

4 0

3 years ago

Factorise 8x squared - 4x

kow [346]

Answer:

$4x(2x-1)$

Step-by-step explanation:

$8x^2-4x$

Factor out the common term $4x$ :

$4x(2x-1)$

5 0

2 years ago