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Klio2033 [76]
3 years ago
6

What type of triangle will always have exactly 1-fold reflectional symmetry?

Mathematics
2 answers:
Ede4ka [16]3 years ago
7 0
Isosceles triangle always have exactly 1-fold refrectional symmetry.
Anna11 [10]3 years ago
7 0

Answer:

D

Step-by-step explanation:

Ed2020

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What is the result of isolating x2 in the equation below?(x + 1)2 + ( -8)2 =9A. x2 = -y2 - 2x +16y - 56B. x2 = y2 +2x+16y +56C.
Anit [1.1K]

The expression we have is:

(x+1)^2+(y-8)^2=9

Step 1. Use the binomial square formula:

(a+b)=a^2+2ab+b^2

Applying this formula to the first binomial squared:

x^2+2x+1+(y-8)^2=9

Step 2. Apply the formula for the square of a binomial to the second binomial:

x^2+2x+1+y^2+2(y)(-8)+(-8)^2^{}=9

In this case, we have some operations to solve before we move on to isolating x. So we solve the operations:

x^2+2x+1+y^2-16y+64^{}=9

Step 3. Move the terms that are not x squared to the right side of the expression. Remember that when we move one term from one side of the equation to the other, the term must change its sign. We get the following:

x^2=9-2x-1-y^2+16y-64

Step 4. Combine like terms and arrange terms in order from the greatest exponent to the lowest and leave the independent term at the end:

x^2=-y^2-2x+16y-56

And that is the final result, which is option A.

Answer: Option A.

3 0
2 years ago
0.7 + y = -1.34 i forgot how to do this. Can someone please explain how to get the answer
ss7ja [257]
It is 1.34 because 1 is bigger than 7/10
8 0
4 years ago
What is the simplified value of the expression below?
astraxan [27]

Answer:

-78.12

Step-by-step explanation:

a 12.4x-6.3= -78.12

mark as brainlyliest

7 0
3 years ago
Read 2 more answers
5.4/0.5 what is the answer or quotient of this problem
Aliun [14]

the answer would be 10.8

5 0
3 years ago
Find the volume of a square pyramid with a base area of 18 in.² and a height of 6 in
Ludmilka [50]

ANSWER

36 cubic inches.

EXPLANATION

The volume of a square pyramid is calculated using the formula:

V =  \frac{1}{3}  {l}^{2}  \times h

where l² is the area of the base and h= 6 inches is the height of the square pyramid.

We substitute the values into the formula to get,

V =  \frac{1}{3} \times  18 \times 6 \:  {in}^{3}

We simplify to get:

V =  6 \times 6  =3 6 {in}^{3}

Therefore the volume of the square pyramid is 36 cubic inches.

6 0
4 years ago
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