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3 years ago

I need help fast...... marking brainiest

Mathematics

2 answers:

mario62 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

1 cheeseburger and 20 fries

yKpoI14uk [10]3 years ago

3 0

Answer: 1 cheeseburger and 20 fries

Step-by-step explanation: because, I just did the calculations

and 420 calories= hamburger and fries

20x11=220 and (the cheeseburger it doesn't tell us how many calories) but it has to be less that the hamburger and I knew immediately that its was 1 cheeseburger and 20 fries

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-k/7=-4 i dont know how to do one step equations

AnnyKZ [126]

-k/7 = -4

k/7 = 4

k = 7 × 4

k = 28

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Part of a tiling design is shown. The center is a regular hexagon. A square is on each side of the hexagon, and an equilateral t

VMariaS [17]

1,119.6 in. the answer is c my diddle.

Find the area of the hexagon which is 259.81

Find the area of the squares which is (6)100

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259.81 + 600 + 259.8

519.6 + 600 = 1119.6

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3 years ago

What is the volume of the composite figure?

Stells [14]

The right answer is

D.)

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Please help me answer this.

Kitty [74]

Answer:

128

Step-by-step explanation:

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3 years ago

The vertices of a triangle ABC are A(7, 5), B(4, 2), and C(9, 2). What is measure of angle ABC? 30° 45° 56.31° 78.69°

GenaCL600 [577]

The measure of angle ABC is 45°

Explanation

Vertices of the triangle are: A(7, 5), B(4, 2), and C(9, 2)

According to the diagram below....

Length of the side BC (a) $=\sqrt{(4-9)^2+(2-2)^2}= \sqrt{25}= 5$

Length of the side AC (b) $= \sqrt{(7-9)^2 +(5-2)^2}= \sqrt{4+9}=\sqrt{13}$

Length of the side AB (c) $= \sqrt{(7-4)^2 +(5-2)^2} =\sqrt{9+9}=\sqrt{18}$

We need to find ∠ABC or ∠B . So using Cosine rule, we will get...

$cosB= \frac{a^2+c^2-b^2}{2ac} \\ \\ cos B= \frac{(5)^2+(\sqrt{18})^2-(\sqrt{13})^2}{2*5*\sqrt{18} }\\ \\ cosB= \frac{25+18-13}{10\sqrt{18}} =\frac{30}{10\sqrt{18}}=\frac{3}{\sqrt{18}}\\ \\ cosB=\frac{3}{3\sqrt{2}} =\frac{1}{\sqrt{2}}\\ \\ B= cos^-^1(\frac{1}{\sqrt{2}})= 45 degree$

So, the measure of angle ABC is 45°

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3 years ago

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