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nekit [7.7K]
3 years ago
15

Write a coordinate proof given quadrilateral ABCD with vertices A (3, 2), B (8, 2), C (5, 0), and D (0, 0).

Mathematics
1 answer:
sergey [27]3 years ago
8 0

Answer:

Step-by-step explanation:

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A recipe for nut bread calls for 1/3 cup of walnuts and 2/6 cup of pecans. What is the total amount of walnuts and pecans needed
tiny-mole [99]

Answer: 2/3 cups

Step-by-step explanation:

6 0
2 years ago
In ΔSTU, the measure of ∠U=90°, the measure of ∠T=47°, and ST = 7.2 feet. Find the length of US to the nearest tenth of a foot.​
Sauron [17]

Answer:

US=5.3\ ft

Step-by-step explanation:

we know that

In the right triangle STU

The sine of angle T is equal to the opposite side angle T divided by the hypotenuse

sin(T)=\frac{US}{ST}

substitute the values

sin(47\°)=\frac{US}{7.2}

US=(7.2)sin(47\°)=5.3\ ft

7 0
3 years ago
Read 2 more answers
I need help with all 3 please
olganol [36]

Step-by-step explanation:

x +2y = 9. .....(1)

x - 2y = 5. .....(2)

from eqn (1)

x + 2y = 9

x = 9 - 2y.

substitute x = 9 - 2y into eqn (2)

9 - 2y - 2y = 5

-4y = 5 - 9

-4y = -4

y = 1

sub y = 1 into eqn (1)

x + 2y = 9

x + 2(1) = 9

x + 2 = 9

x = 9 - 2

x = 7.

(2) x + y = 9 ....(1)

x - 2y = 0 .....(2)

from eqn (2)

x - 2y = 0

x =0 + 2y

substitute x = 2y into eqn (1)

x + y = 9

(2y) + y = 9

3y = 9

y = 3

substitute y = 3 into eqn (2)

x - 2y = 0

x - 2(3) = 0

x - 6 = 0

x = 6.

(3) 2x + 7y = 5. ....(1)

2x + 3y = 9. .....(2)

from eqn (1)

2x + 7y = 5

7y = 5 - 2x

y = (5 - 2x)/7

sub y = (5 - 2x)/7 into eqn (2)

2x + 3y = 9

2x + 3(5 - 2x)/7 = 9

2x + (15 - 6x)/7 = 9

multiply through by 7

14x + 15 - 6x = 63

14x - 6x = 63 - 15

8x = 48

x = 6

sub x = 6 into eqn (1)

2x + 7y = 5

2(6) + 7y = 5

12 + 7y = 5

7y = 5 - 12

7y = -7

y = -1

6 0
2 years ago
Pythagorean Theorem Level 2
Flura [38]

Answer:

10

Step-by-step explanation:

Pyth. Theorem:

a = leg, b = leg, c = hypotenuse

c =  \sqrt{ {a}^{2}  +  {b}^{2} }

The length of the third side

=

\sqrt{ {5 \sqrt{3} }^{2} +  {5}^{2}  }

=

\sqrt{75 + 25}

=

\sqrt{100}

= 10

3 0
2 years ago
Given tan 0= -15/8 where 270º &lt; 0 &lt; 360°<br> Given tan 0 =<br> Find cos 0
horsena [70]

Answer:=8/17

Step-by-step explanation:

3 0
1 year ago
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