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3 years ago

Multiply (b+3)*(a+7)

Mathematics

2 answers:

mestny [16]3 years ago

6 0

Answer:

ba+7b+3a+21

Step-by-step explanation:

Use the FOIL method: (a+b)*(c+d) = ac+ad+bc+bd(a+b)(c+d )= ac+ad+bc+bd.

tamaranim1 [39]3 years ago

4 0

ba+7a=7. use foil method

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Number 6,8, and 10.

Aliun [14]

I think number 10 is 4/9

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3 years ago

You buy a watch for $60. Your friend buys the same watch a month later. It is now sold at a discount of 15%. What is the new sal

Natalka [10]

Answer:

$9.00

Step-by-step explanation:

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1. Since it was 15% discount, that means you have to solve 15% of 60, which is equivalent to 0.15 x 60.

2. Since the product of 0.15 and 60 is 9, then 9 is your answer.

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~delightedsunrise8

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3 years ago

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What is the ratio of 3 1/2 inches to 4 2/3 feet in simplest form

Elden [556K]

3 1/2= 3.5 inches and 4 2/3 feet is 56 inches. Now put 3.5/56=0.0625

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3 years ago

Read 2 more answers

Find the area of a compound shape<br><br> Can you please explain

gtnhenbr [62]

Answer:

$A=292.53~m^2$

Step-by-step explanation:

<u>Area of a Compound Shape</u>

The shape shown in the image is made of two shapes: Half a circle of radius 8 m and a triangle of base 24 m and height 16 m.

The area of a circle of radius r is:

$A_c = \pi r^2$

The area of a triangle of base b and height h is:

$\displaystyle A_t=\frac{b.h}{2}$

Calculate the area of the circle:

$A_c = \pi 8^2$

$A_c = 64\pi$

Area of half the circle:

$A_c/2 = 32\pi~m^2$

Area of the triangle:

$\displaystyle A_t=\frac{24\cdot 16}{2}$

$A_t=192~m^2$

The area of the shaded shape is:

$A=32\pi~m^2+192~m^2$

Substituting the value of pi:

$\mathbf{A=292.53~m^2}$

4 0

3 years ago

Which of the graphs above is the graph of the equation below? Y=x^3-6x^2+11x-6=(x-3)(x-2)(x-1)

____ [38]

Answer:

answer Z

Step-by-step explanation:

Look for a graph that contains the following zeros: x = 1, x = 2 , x= 3, following the info derived by the binomial factors that the function contains. Also look ate the fact that the function in question has for leading term positive $x^3$ , then this function must go towards plus infinity when x becomes large. This is the case for the graph option Z (the last graph of the group)

7 0

3 years ago