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4 years ago

HELP PLEASE What is the following product?

Mathematics

2 answers:

Naya [18.7K]4 years ago

6 0

The answer would be:

sergeinik [125]4 years ago

3 0

$(2 \sqrt{7}+3 \sqrt{6} )(5 \sqrt{2}+4 \sqrt{3} )=10 \sqrt{14}+8 \sqrt{21} +15 \sqrt{12}+12 \sqrt{18} = \\ =10 \sqrt{14}+8 \sqrt{21} +15 *2\sqrt{3}+12*3 \sqrt{2}= \\ = 10 \sqrt{14}+8 \sqrt{21} +30\sqrt{3}+36 \sqrt{2}$

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Use the net to find the surface area of the square pyramid

SpyIntel [72]

Answer:

473

Step-by-step explanation:

The square surface area is 121 (11x11)

For the triangles, you do 16x11, which equals 176 and then divide by 2, to get 88. Since there are 4 triangles, I did 88x4 and got 352 and then added 121 to get 473

4 0

3 years ago

Read 2 more answers

Suppose Casey Title Company normally charges $300 for services related to selling a house. As part of a summer special, Casey of

g100num [7]

Given :

Casey's company charges , C = $300.

In summer special, Casey offers customers a trade discount of 25%.

To Find :

Charges during summer.

Solution :

Let, x is the amount of charges they take during summer.

Casey offers customers a trade discount of 25%.

$x =300(1-\dfrac{25}{100})\\\\x=300(1 - 0.25)\\\\x=300(0.75)\\\\x=\$225$

Therefore, amount of charges during summers are $225.

Hence, this is the required solution.

8 0

3 years ago

Sunhee had four plastic shapes a square, a circle, and a pentagon in how many ways can she line up the four shapes of the circle

julsineya [31]

Answer:

only three shapes are mentioned.

But anyhow, 4 shapes allow the following reasoning...

you can start lining up with any of the for shapes, so you have 4 possibilities, for the second position you have 3 possibilities, for the third 2 and for the last only 1.

so 4*3*2*1= 24 possible ways

but with the added rule to keep the circle and the square apart, we have to reduce the number.

by the same step-by-step reasoning we get

4 possibilities for the 1st item

only 2 possibilities for the 2nd item

(if 1st is square or circle, the other one's not an option, if it's not we have to choose one of them to not place them both at point 3 and 4)

only 1 choice for the 3rd item

(reasoning as above, if 2nd is square or circle, we have to the only other, if it isn't, we can put it here at 3rd position)

plus scenarios where either square or circle are on 1st point, the other's on 4th.

I guess that makes 14 possible arrangements

5 0

3 years ago

The diameter of a circle is 14 inches. What is the circle's area use 3.14 for PI

olganol [36]

Answer:

153.86 inches²

Step-by-step explanation:

How do we find the radius of a circle?

The radius of a circle is 1/2 of the diameter, so 14/2 = 7 inches

How do we find the area of a circle?

We can find the area of a circle by using πr², where r = radius. We're given the radius as 7 inches and pi as 3.14.

Solving

$3.14*7^2$
$3.14*49$
$153.86$

Therefore, the answer is 153.86 inches².

Have a lovely rest of your day/night, and good luck with your assignments! ♡

5 0

2 years ago

Read 2 more answers

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Bad White [126]

Answer:

Domain is: ( − ∞ , ∞ ) , { x | x ∈ R }

range is: ( − ∞ , − 3 ] , { y | y ≤ − 3 }

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

Step-by-step explanation:

3 0

3 years ago