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3 years ago

-4(3x+2) simplified?????

Mathematics

2 answers:

Rudik [331]3 years ago

6 0

Answer:

-12x-8

Step-by-step explanation:

distribute the -4

(-4)(3x) + (-4)(2)

multiply

-12x-8

Liula [17]3 years ago

5 0

Answer:

− 12 x - 8

Step-by-step explanation:

I hope this is correct

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Identify the slope and y-intercept of the graph of the equation.

IceJOKER [234]

Answer:

Step-by-step explanation:

5 0

3 years ago

You are resurfacing your backyard pool. The pool is in the shape of a rectangular prism with a length of 20 ft, a width of 10 ft

zepelin [54]

Answer:

$440\ ft^2$

Step-by-step explanation:

we know that

The area of the backyard pool to be resurfaced is equal to the area of the base plus the area of its four lateral sides.

$A=B+PH$

where

B is the area of the base

P is the perimeter of the base

H is the depth of the pool

Find the area of the base B

$B=(L)(W)$

substitute the given values

$B=(20)(10)=200\ ft^2$

Find the perimeter of the base P

$P=2(L+W)$

substitute the given values

$P=2(20+10)=60\ ft$

we have

$H=4\ ft$

Find the area of the backyard pool to be resurfaced

$A=B+PH$

substitute the values

$A=200+60(4)$

$A=440\ ft^2$

3 0

3 years ago

If 6 tomatoes are for $4, how much does 15 tomatoes cost?

Mariana [72]

$22.50 is the cost of 15 tomatoes

3 0

4 years ago

.......................................

klio [65]

Answer:

Step-by-step explanation:

7 0

3 years ago

Find the slope of the surface in the x and y-directions at the given point. h(x,y) = x2 – y2 (-3, 2, 5)

belka [17]

If $h(x,y)=x^2-y^2$ , then you can find partial derivatives:
$\frac{dh}{dx} =2x \\ \frac{dh}{dy} =-2y$ .

At point A(-3,2,5) (this is the point which lies on the surface, because $5=(-3)^2-2^2=9-4=5$ ) these derivatives have values:

$\frac{dh}{dx} |_A=2\cdot (-3)=-6 \\ \frac{dh}{dy} =-2\cdot 2=-4$ -- the slopes at x and y- directions, respectively.

8 0

3 years ago