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prisoha [69]
3 years ago
8

Use the distributive property to remove the parentheses. (w-4)7

Mathematics
1 answer:
ella [17]3 years ago
4 0

Answer: 7w - 28

7*w - 7*4

7w - 28

Brainliest pwease if the answer is correct! <3

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Marque a alternativa correta *
Levart [38]

Step-by-step explanation:

f(x) = 1/2 x é uma função do 1° grau com coeficiente linear=1/2.

7 0
3 years ago
Hello, may I please have some help on these 4 questions? Thanks very much! {Also, if you could answer them quick, that would be
wlad13 [49]
1.

Parallelogram with base a = 20 in. and height h = 16 in.
Triangle with base a = 20 in. and height b = 8 in.

so:

A = A_P+A_T=a\cdot h+\frac{1}{2}\cdot a\cdot b=20\cdot16+\frac{1}{2}\cdot20\cdot8=320+80=\\\\=\boxed{400\text{ in}^2}

2.

Trapezoid with base b₁ = 14 cm, base b₂ = 4 cm and height h = 10 cm
Triangle with base b₁ = 14 cm and height x = 18 cm - 10 cm = 8 cm

so:

A=A_T+A_\Delta=\frac{1}{2}\cdot(b_1+b_2)\cdot h+\frac{1}{2}\cdot b_1\cdot x=\\\\=&#10;\frac{1}{2}\cdot(14+4)\cdot 10+\frac{1}{2}\cdot 14\cdot8=\frac{1}{2}\cdot18\cdot 10+\frac{1}{2}\cdot 14\cdot8=90+56=\\\\=\boxed{146\text{ cm}^2}

3.

We have three rectangles:

A=A_1+A_2+A_3=1\cdot 4+6\cdot5+18\cdot6=4+30+108=\boxed{142\text{ ft}^2}

4.

Area of a circle:

A_\circ=\pi\cdot r^2=3.14\cdot5^2=3.14\cdot25=78.5 \text{ cm}^2

Area of a rectangle:

A_R=8\cdot 6=48\text{ cm}^2

Area of the shaded region:

A=A_\circ-A_R=78.5-48=\boxed{30.5\text{ cm}^2}


3 0
3 years ago
The slope of a line on a distance-time graph represents
Dovator [93]

Answer:

speed

Step-by-step explanation:

In a distance-time graph:

Distance is the y-variable (dependent)

Time is the x-variable (independent)

The slope of a line is rise/run, or can also be calculated with this equation, where "m" is slope:

m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

slope = y-variables / x-variables

slope = distance / time

If you divide distance by the time it took to get that far, you will find how fast you got there. This is called the speed.

You might also see this formula:

k = d/t

In the options, "time" and "distance" would not make sense, because those are the variables on the x-axis and y-axis.

8 0
3 years ago
An ice cream shop uses the following ingredients to make 1 sundae.Ingredients AmountIce cream 2 scoops Sprinkles 4 spoonfuls Whi
aleksandrvk [35]

8 Sundaes

Sense its 4 spoonfuls per sundae our equation to find how many sundaes was made looks like this:

32÷4=8


8 0
3 years ago
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attashe74 [19]

Answer:

calculator

Step-by-step explanation:

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3 years ago
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