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3 years ago

Andrew estimates the attendance at the game to be 550 people. There ar

Mathematics

1 answer:

aksik [14]3 years ago

6 0

Answer:

~8.9%

Step-by-step explanation:

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Which of the following represent the values of x, y, and z.

Paraphin [41]

Answer:

Part 1) $z=4\sqrt{3}\ units$

Part 2) $y=4\sqrt{2}\ units$

Part 3) $x=4\sqrt{6}\ units$

Step-by-step explanation:

see the attached figure with letters to better understand the problem

step 1

<em>Find the value of z</em>

In the right triangle DBC

$cos(C)=\frac{4}{z}$ ----> equation A

In the right triangle ABC

$cos(C)=\frac{z}{12}$ ----> equation B

equate equation A and equation B

$\frac{4}{z}=\frac{z}{12}$

$z^{2}=48$

$z=4\sqrt{3}\ units$

step 2

In the right triangle DBC

Applying the Pythagoras Theorem

$z^{2}=y^{2}+4^{2}$

we have

$z=4\sqrt{3}\ units$

substitute

$(4\sqrt{3})^{2}=y^{2}+4^{2}$

$48=y^{2}+16$

$y^{2}=48-16$

$y^{2}=32$

$y=4\sqrt{2}\ units$

step 3

Find the value of x

In the right triangle ABC

Applying the Pythagoras Theorem

$12^{2}=x^{2}+z^{2}$

we have

$z=4\sqrt{3}\ units$

substitute

$12^{2}=x^{2}+(4\sqrt{3})^{2}$

$144=x^{2}+48$

$x^{2}=144-48$

$x^{2}=96$

$x=4\sqrt{6}\ units$

6 0

3 years ago

Help me please thanks!!

Vsevolod [243]

x ≥ 11, x ≤ 8.

The equal then part means closed circle.

If we graph this there's a gap from 8 to 11 so there isn't shading in between.

Option 4 is correct.

3 0

3 years ago

Combine the like terms to create an equivalent expression: -2k-(-5)+1

ICE Princess25 [194]

Answer:

-2k + 6

Step-by-step explanation:

-2k -(-5) + 1 -(-5) is also +5

-2k + 5 + 1 Combine like terms

-2k + 6

5 0

3 years ago

Read 2 more answers

Increase 150 by 10% then decrease by 15%

nekit [7.7K]

Answer:

140.25

Step-by-step explanation:

10/100*150=15

150+15=165

15/100*165=24.75

165-24.75=140.25

please mark brainliest

3 0

3 years ago

The fine schedule for overdue books at the county library is modeled by the values in the table.

MA_775_DIABLO [31]

Answer:

y = five-halves x, where y is the cost in cents for a book that is x days overdue

Step-by-step explanation:

See attachment

3 0

2 years ago