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3 years ago

12.45 by 5 okokokookokokkok

Mathematics

1 answer:

jek_recluse [69]3 years ago

6 0

Answer:

Step-by-step explanation:

hope that will help you

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alex wants to buy the same number of stamps and envelopes dancer sold in packs of 14 and envelopes are sold and packs of 10 what

lianna [129]

5 packs of stamps and 7 packs of envelopes. There will be a total of 70 envelopes and stamps.

6 0

3 years ago

Can someone please help me?

oksano4ka [1.4K]

1) 12
2) 2y
3) 12+2y
4) 12+2y

8 0

2 years ago

Read 2 more answers

Mario collected data about some of the players on a women’s basketball team. The data is shown in the form of table, mapping, an

Mumz [18]

Answer:

1. No, because each x value can only have one y value (one-to-one relationship).

2. No, because each x value can only have one y value (one-to-one relationship).

3. Yes, because one member of the domain is assigned to one member of the range.

Step-by-step explanation:

4 0

2 years ago

What is the length of the longest side ?

exis [7]

Answer:

11 feet (Option C)

Step-by-step explanation:

Let the longer side be l and the shorter side be b.

We know that,

→ Perimeter of rectangle = 2 ( longer side + shorter side )

Here,

Perimeter of rectangle is 32 feet.

→ 32 = 2 (l + b)

→ 32 = 2l + 2(5)

→ 32 = 2l + 10

→ 32 - 10 = 2l

→ 22 = 2l

→ $\sf \dfrac{22}{2}$ = l

→ 11 = l

→ 11 feet = longer side

$\therefore$ Length of the longer side is 11 feet.

7 0

3 years ago

Given the trinomial, what is the value of the coefficient B in the factored form? 2x2 + 4xy − 48y2 = 2(x + By)(x − 4y) −12 12 −6

Sonja [21]

Answer:

B is 6.

Step-by-step explanation:

We are trying to find a value for $B$ such that:

$2x^2+4xy-48y^2=2(x+By)(x-4y)$ is true for every $x,y$ .

So let's choose $x=0,y=1$ :

$2(0)^2+4(0)(1)-48(1)^2=2(0+B(1))(0-4(1))$

$2(0)+0-48=2(B)(-4)$

$0-48=-8B$

$-48=-8B$

Divide both sides by -8:

$\frac{-48}{-8}=B$

$6=B$

$B=6$

Note: I didn't want to choose y to be 0 because the value of B would disappear from the equation. So you should be able to have chosen any x and y except for y=0 to solve the equation for B.

Check:

So let's check and use foil to multiply out the right hand side.

$(x+6y)(x-4y)$

$x(x)+x(-4y)+6y(x)+6y(-4y)$

$x^2-4xy+6xy-24y^2$

$x^2+2xy-24y^2$

There was a 2 in front of that multplicapltiation:

$2(x+6y)(x-4y)$

$2(x^2+2xy-24y^2)$

$2x^2+4xy-48y^2$

This is exactly what we have on the left hand side of your given equation.

3 0

3 years ago