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Natalka [10]
3 years ago
12

What is the value of x? a. 68° b. 62° c. 112° d. 124°

Mathematics
2 answers:
Dmitrij [34]3 years ago
8 0
68 degrees because 56×2=112 then 180-112=68
Georgia [21]3 years ago
8 0
The sum of all angles of a triangle is equal to 180°

On a isosceles triangle, the base angles are the same. 

We add them together 56° + 56° = 112°

To know X, we subtract 112° from the total

180° - 112° = 68°

X = 68°

OR as an equation

56 + 56 + x = 180
112 + x = 180
x = 180 - 112
x = 68
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Can someone help and explain this because I don't get it!
creativ13 [48]
The area of a triangle in determined by the formula:
\frac{b \times h}{2}
where b is the base of the triangle and h is it's height

You just have to replace the b and h with their values in the formula (b=9.9ft and h=5.5ft)
\frac{b \times h}{2}  =  \frac{9.9 \times 5.5}{2}  =27.225

The answer is 27.225 ft^2

3 0
3 years ago
The solutions to the equation 2x^2 + x - 1 = 2 are x = -3/2 or x = _______.
garik1379 [7]

Answer:

The remaining solution to the equation is x = 1

Step-by-step explanation:

2x^2 + x - 1 = 2

First set the equation to zero by subtracting 2 from each side:

2x^2 + x - 1 - 2 = 2 - 2

2x^2 + x - 3 = 0

Factor the left side of the equation:

2x^2 + x - 3 = 0

(2x + 3)(x - 1) = 0

Now set each factor to zero and solve:

2x+ 3 = 0

2x+ 3 - 3  = 0 - 3

2x= -3

2x/2= -3/2

x= -3/2 (The given expression)

x - 1 = 0

x - 1 + 1 = 0 + 1

x = 1

Since we already knew x = -3/2, the missing solution is x = 1.

4 0
3 years ago
What is 18- (2 squared + 3 squared)
Darya [45]

Well it boils down to 18 - (4 + 9) which is 18 - 13 or 5. So the answer is 5 in this equation.

7 0
3 years ago
What two measurement could make up a complementary angle when one angle is 8 degrees more than the other?
Firdavs [7]
Complimentary angles add up to 90 degrees

x + y = 90
x = y + 8

y + 8 + y = 90
2y + 8 = 90
2y = 90 - 8
2y = 82
y = 82/2
y = 41

x = y + 8
x = 41 + 8
x = 49

so ur angles are : 41 and 49
7 0
3 years ago
Prime factorization of 125​
joja [24]
To find the prime factorization, divide
125
by only prime numbers. Remember that prime numbers are whole numbers greater than
1
that are only evenly divisible by themselves and
1
.
{
2
,
3
,
5
,
7
,
11
,
13
,
17
,
19
,
23
,
29
,
31
,
37
,
41
,
43
,
47
,
53
, etc.}
Since
125
ends in
5
, it is evenly divisible by
5
, which is a prime number. (How convenient!)
125
÷
5
=
25
25
now has to be factored into its prime factors.
25
=
5
⋅
5
So, the prime factorization of
125
is
125
=
5
⋅
5
⋅
5
=
5
3
3 0
3 years ago
Read 2 more answers
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