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Nastasia [14]
2 years ago
12

True or false: if your Exppression contains more than one set of parenthesis, you should evaluate all of them before doing anyth

ing else,
Mathematics
2 answers:
mr_godi [17]2 years ago
5 0

Answer:

true

Step-by-step explanation:

dexar [7]2 years ago
4 0

Answer:

yes that is what i was tought

Step-by-step explanation:

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What is the value of z so that-9 and 9 are both solutions of x^2+z=103?
notka56 [123]
If the sol'ns are -9 and 9, then we can use this to form our eq'n:
(x - 9)(x + 9) = 0
x^2 - 81 = 0
so...
x^2 + z - 103 = x^2 -81
z - 103 = -81
z = -81 + 103
z = 22
8 0
3 years ago
A triangle has a 90° angle, and the other two interior angles are congruent. Explain how to find the measure of one of the two c
Salsk061 [2.6K]

Answer:

45 degrees

Step-by-step explanation:

Think of it like this the sum of the angles in a triangle are the always the same 180 degrees.

So now, we do 180 - 90 = 90 this is the sum of the other angles.

We shall assume that they are the same and divide 90/2 = 45 degrees each

Ok here are some things to understand while solving!

  • If three sides of one triangle are equal to three sides of another triangle, the triangles are congruent.
  • If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.
  • If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
  • If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.
  • If the hypotenuse and one leg of one right-angled triangle are equal to the corresponding hypotenuse and leg of another right-angled triangle, the two triangles are congruent.
  • Without knowing at least one side, we can't be sure if two triangles are congruent. (which we do!)

Hope this helped!

Study hard!

5 0
3 years ago
Read 2 more answers
One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. What are the dimensions of the
vitfil [10]

Answer:

2x + 2(x - 3)

Step-by-step explanation:

4 0
3 years ago
A fair coin is tossed three times.What is the probability of getting two heads and one tail for the three tosses in any order
aivan3 [116]
The probability is 3/8
6 0
3 years ago
What is the solution of 4−6x≥−8 A.) x≥2 B.) x≤23 C.) x≤2 D.) x≤−2
Alenkasestr [34]

Answer: I cant tell which one is a or b or c or d but ill say its b

5 0
3 years ago
Read 2 more answers
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