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Sindrei [870]
2 years ago
14

Special Triangle: Solve for x and y.

Mathematics
1 answer:
Lelechka [254]2 years ago
3 0

Answer:

<em><u>x </u></em><em><u>=</u></em><em><u> </u></em><em><u>8</u></em><em><u>.</u></em><em><u>6</u></em><em><u>7</u></em><em><u> </u></em><em><u>and </u></em><em><u>y </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>0</u></em>

Step-by-step explanation:

In right angled triangle

cos 60⁰ = 5/y

1/2 = 5/y

y = 10

in right angled triangle,

tan 60⁰ = x/5

√3 = x/5

x = 5√3 = 5 × 1.73 = 8.65

x = 8.67

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A block of copper weighs 2160g and has a volume of 240cm cubed. what is the density of the copper?
mrs_skeptik [129]
(Mass) 2160g (Divided by) / (Volume) 240cm (Equals) = 9 (Density)

3 0
3 years ago
As part of a drug trial, a survey was done to gather information about the participants' experiences with side effects. Here are
Paraphin [41]

The Venn diagram which represents the distribution of the participant in the drug trial is attached below. The Number of participants in the drug trial that has anxiety is 370

We can find the number of participants who has dizziness(D). Fatigue(F) and anxiety(A) can be calculated thus :

n(D) = n(D only) + (DnF only) + (DnA only) + (DnAnF)

271 = 36 + 86 + 23 + x

271 = 145 + x

x = 271 - 145

x = 126

  • n(DnAnF) = 126

<u>Number who has </u><u>atleast one of the three</u><u> side effects can be expressed thus</u> :

n(A only) + n(F only) + n(D only) + (DnF only) + (DnA only) + (DnAnF) + n(FnA only) = 585

36 + 23 + 62 + 86 + 126 + 93 + n(FnA) only = 585

  • n(FnA only) = 585 - 426 = 159

<u>Number of participants</u><u> who has </u><u>anxiety</u><u> can be calculated thus</u> :

n(DnAnF) + (DnA only) + n(FnA only) + n(A only)

126 + 23 + 159 + 62 = 370 participants

Therefore, 370 of the total participants has Anxiety.

Learn more : brainly.com/question/12570490

8 0
2 years ago
What is the discontinuity and zero of the function
lukranit [14]
The discontinuity are the point wherein the function is not defined. 
The zeros are the points wherein f(x)=0.
Computing the discontinuity points:
Set x-1=0 then the discontinuity point is at x=1.
Comptine the zeroes:
Set 3x^2+x-4=0
Compute the discriminant: 1^2-4(3)(-4)=49=7^2.
Then with quadratic formula we get the solutions:
(-1-7)/6=-8/6\\(-1+7)/6=1
The two zeros are \dfrac{-8}{6},1
7 0
3 years ago
Find the surface area of the rectangular prism.<br> 6 yd<br> 2 yd<br> 7yd
slega [8]

Answer:

136

Step-by-step explanation:

The formula you use is as follows:

A=2(WL+HL+HW)

You plug in each number to get this equation

A=2[(6*7)+(2*7)+(2*6)]

A=2(42+14+12)

A=2(68)

A=136

5 0
3 years ago
In the past year and a half, Gnarly the dog lost an average of 29pound each month. Today, Gnarly weighs 14 pounds. How much did
tatyana61 [14]

Answer:

449pounds

Step-by-step explanation:

29x15months=435

435+15=449 pounds

P.S. That was one BIG dog.

7 0
3 years ago
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