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Sav [38]
3 years ago
15

Which type of triangle will always have exactly 1-fold reflectional symmetry? right triangle obtuse triangle equilateral triangl

e isosceles triangle
Mathematics
2 answers:
ivolga24 [154]3 years ago
8 0
Isosceles triangle ig
Nadya [2.5K]3 years ago
8 0

Answer:

Isosceles Triangle      

Step-by-step explanation:

  • Reflection symmetry exists when the figure can be folded over onto itself along a line. This line is called the line of symmetry.
  • In a regular polygon, the number of lines of symmetry is equal to the number of sides in the polygon.
  • Isosceles triangle is a type of triangle that will always have exactly 1-fold reflection symmetry.
  • 1-fold reflection symmetry means that one line or 1 division can divide the whole figure into two symmetrical parts.
  • An isosceles triangle is a triangle that has two sides of equal length. Isosceles triangle has at least one line of symmetry.

Thus, the answer is Option c) Isosceles triangle.

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If tsr = 84 what is the value of x? SQ bisects TSR RSQ= 3x-9
dsp73
We know that
 ∠ TSR = 84°

if SQ bisects ∠ <span>TSR
then 
</span>∠ RSQ = ∠ TSR/2
<span>so
</span>∠ RSQ = (1/2)*84°----- 42°
∠ RSQ = 3x-9
3x-9=42-------> 3x=42+9------> 3x=51-----> x=51/3-----> x=17°
<span>
the answer is
</span>x=17°<span>

</span>
7 0
3 years ago
Read 2 more answers
There are 6 circles arid 9 squares. What is the simplest ratio of circles to squares?<br> PLS HELP
lina2011 [118]

Answer:

1:2

Step-by-step explanation:

6:9 can be simplified to

divide by 3 to get simplest form

1:2

4 0
3 years ago
Translate the phrase into an expression: 11 more than one third of a number
skelet666 [1.2K]
1/3x+11.
1/3 of a number can be shown as 1/3x, since the number is not identified.

We can represent 11 more as +11.
This, our expression is 1/3x+11

Hope this helps!
5 0
3 years ago
Which is bigger 20% of 400 or 1//4 f 360
nekit [7.7K]
20% =20/100=2/10
20% of 400 =(2/10)*400 =80
1/4 of 360= (1/4)*360 =90
90>80, so 1/4 of 360 is bigger than 20% of 400
7 0
3 years ago
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The television show CSI: Shoboygan has been successful for many years. That show recently had a share of 18, meaning that among
jeyben [28]

Answer:

(a) The value of P (None) is 0.062.

(b) The value of P(at least one) is 0.938.

(c) The value of P(at most one) is 0.253.

(d) The event is not unusual.

Step-by-step explanation:

Let <em>X</em> = number of households watching the show.

The probability of the random variable <em>x</em> is, P (X) = <em>p</em> = 0.18.

The sample selected for the survey is of size, <em>n</em> = 14

The random variable <em>X</em> follows a Binomial distribution with parameter <em>n</em> = 14 and <em>p</em> = 0.18.

The probability of a Binomial distribution is computed using the formula:

P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0,1,2,...

(a)

Compute the probability that none of the households are tuned to CSI: Shoboygan as follows:

P(X=0)={14\choose 0}(0.18)^{0}(1-0.18)^{14-0}=1\times1\times0.06214=0.062

Thus, the value of P (None) is 0.062.

(b)

Compute the probability that at least one household is tuned to CSI: Shoboygan as follows:

P (X ≥ 1) = 1 - P (X < 1)

             = 1 - P (X = 0)

             =1-0.062\\=0.938

Thus, the value of P(at least one) is 0.938.

(c)

Compute the probability that at most one household is tuned to CSI: Shoboygan as follows:

P (X ≤ 1) = P (X = 0) + P (X = 1)

             ={14\choose 0}(0.18)^{0}(1-0.18)^{14-0}+{14\choose 1}(0.18)^{1}(1-0.18)^{14-1}\\=0.062+0.191\\=0.253

Thus, the value of P(at most one) is 0.253.

(d)

An event that has a very low probability of occurrence is known as an unusual event.

The probability of the event "at most one household is tuned to CSI: Shoboygan" is 0.253.

This probability value is not low.

Hence, the event is not unusual.

5 0
4 years ago
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