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dexar [7]
3 years ago
11

What is the feet and in47 in = ? ft ? in

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
8 0

Answer:

3.167

Step-by-step explanation:

Hope this helps

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14+14=28
48-28=20
20 divided by 2 =10
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How do you write 7 a mixed number in the simplest form
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Add the following quantities, 76.2 pm + 0.123fm​
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Answer:

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Step-by-step explanation:

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A caterer will provide the meal for the football banquet. The caterer charges a base fee of $400 plus $6 per plate.
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2 years ago
2. The coordinates of the vertices of ABC are A (5, 2), B (2, 4), and C (7, 5). Determine whether ABC is a right triangle.
Amiraneli [1.4K]

Answer:

Part 2) Triangle ABC is a right triangle (see the explanation)

Part 3) Quadrilateral QRST is not a parallelogram (see the explanation)

Step-by-step explanation:

Part 2) we have

A (5, 2), B (2, 4), and C (7, 5)

Plot the figure to better understand the problem

see the attached figure

we know that

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

step 1

Find the length side AB

A (5, 2), B (2, 4)

substitute the values in the formula

d=\sqrt{(4-2)^{2}+(2-5)^{2}}

d=\sqrt{(2)^{2}+(-3)^{2}}

d_A_B=\sqrt{13}\ units

step 2

Find the length side BC

B (2, 4), C (7, 5)

substitute the values in the formula

d=\sqrt{(5-4)^{2}+(7-2)^{2}}

d=\sqrt{(1)^{2}+(5)^{2}}

d_B_C=\sqrt{26}\ units

step 3

Find the length side AC

A (5, 2), C (7, 5)

substitute the values in the formula

d=\sqrt{(5-2)^{2}+(7-5)^{2}}

d=\sqrt{(3)^{2}+(2)^{2}}

d_A_C=\sqrt{13}\ units

step 4

Verify if the triangle ABC is a right triangle

we know that a right triangle must satisfy the Pythagorean Theorem

so

BC^2=AB^2+AC^2

Remember that the hypotenuse is the greater side

substitute the values

(\sqrt{26})^2=(\sqrt{13})^2+(\sqrt{13})^2

26=13+13

26=26 ----> is true

therefore

Triangle ABC is a right triangle

Part 3) we have

Q (5, 1), R (8, 7), S (14, 10) and T (10, 2)

we know that

The opposite sides of a parallelogram are parallel and congruent

the formula to calculate the distance between two points is equal to

d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}

Step 1

Find the length side QR

Q (5, 1), R (8, 7)

substitute in the formula

d=\sqrt{(7-1)^{2}+(8-5)^{2}}

d=\sqrt{(6)^{2}+(3)^{2}}

d_Q_R=\sqrt{45}\ units

Step 2

Find the length side RS

R (8, 7), S (14, 10)

substitute in the formula

d=\sqrt{(10-7)^{2}+(14-8)^{2}}

d=\sqrt{(3)^{2}+(6)^{2}}

d_R_S=\sqrt{45}\ units

Step 3

Find the length side ST

S (14, 10), T (10, 2)

substitute in the formula

d=\sqrt{(2-10)^{2}+(10-14)^{2}}

d=\sqrt{(-8)^{2}+(-4)^{2}}

d_S_T=\sqrt{80}\ units

Step 4

Find the length side QT

Q (5, 1), T (10, 2)

substitute in the formula

d=\sqrt{(2-1)^{2}+(10-5)^{2}}

d=\sqrt{(1)^{2}+(5)^{2}}

d_Q_T=\sqrt{26}\ units

Step 5

Compare the length of the opposite sides

QR and ST

\sqrt{45}\ units \neq \sqrt{80}\ units

d_Q_R \neq d_S_T

RS and QT

\sqrt{45}\ units \neq \sqrt{26}\ units

d_R_S \neq d_Q_T

Opposite sides are not congruent

therefore

Quadrilateral QRST is not a parallelogram

5 0
2 years ago
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