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Triss [41]
3 years ago
5

Help please! Find x

Mathematics
2 answers:
zloy xaker [14]3 years ago
6 0

Answer:

6√2

Step-by-step explanation:

A 45 45 90 right triangle, so ratio of leg : leg: hypotenuse = a: a : a√2 (a = value of leg)

Given: leg = 6

So the ratio of leg : leg: hypotenuse = 6 : 6 : 6 √2

Answer:

x = 6√2

never [62]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Since the triangle is right use the sine ratio to solve for x

and the exact value for sin45° = \frac{1}{\sqrt{2} }, then

sin45° = \frac{opposite}{hypotenuse} = \frac{6}{x}

Multiply both sides by x

x × sin45° = 6 ( divide both sides by sin45° )

x = \frac{6}{sin45} = \frac{6}{\frac{1}{\sqrt{2} } } = 6\sqrt{2}

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Akiko's bill at the restaurant was $14.05. She left a tip of 18% what is the tip amount (no rounding)
kozerog [31]

Answer:

$2.52

Step-by-step explanation:

8 0
2 years ago
Which of the following are solutions to the equation below?
scoundrel [369]

Answer:

The correct options for the solution values are:

  • x=2\sqrt{2}-5
  • x=-2\sqrt{2}-5

Step-by-step explanation:

Given the expression

x^2+10x+25=8

Subtract 25 from both sides

x^2+10x+25-25=8-25

Simplify

x^2+10x=-17

Add 25 or 5² to both sides

x^2+10x+5^2=8

as

x^2+10x+5^2=\left(x+5\right)^2

so the expression becomes

\left(x+5\right)^2=8

\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}

solve

x+5=\sqrt{8}

Subtract 5 from both sides

x+5-5=2\sqrt{2}-5

x=2\sqrt{2}-5

solve

x+5=-\sqrt{8}

Subtract 5 from both sides

x+5-5=-2\sqrt{2}-5

x=-2\sqrt{2}-5

Therefore, the solution to the equation

x=2\sqrt{2}-5,\:x=-2\sqrt{2}-5

Hence, the correct options for the solution values are:

  • x=2\sqrt{2}-5
  • x=-2\sqrt{2}-5

6 0
3 years ago
If f(x)= 5x-3, find x=2​
maw [93]

Answer:

f(x)=7

Step-by-step explanation:

Plug in x=2 to the equation.

f(x)=5(2)-3

f(x)=10-3

f(x)=7

7 0
3 years ago
Approximately 20% of the students at Kent middle school walk to school daily. If there are 300 students in 6thgrade, 250 in 7th
REY [17]

Answer:

175 students walk to school

Step-by-step explanation:

300+250+325=875

20% of 875 is 175

3 0
3 years ago
Read 2 more answers
Emily is entering a bicycle race for charity. Her mother pledges $1.50 for every mile. If Emily bikes 14 miles, how much will he
aleksklad [387]

Answer:

22.50

Step-by-step explanation:

if one mile is 1.50 then just do 1.50*14 which gives you 22.50

5 0
2 years ago
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