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meriva
3 years ago
10

HELP ASAP MArking AS BRAINLIST

Mathematics
1 answer:
Fed [463]3 years ago
7 0

Answer:

80 because the sum of a triangle should be 180 so 180 - 100 is 80

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How do i solve n squared - 62
snow_lady [41]
The rule for this one is called the difference of squares
A^2 - b ^2 = (a+b)(a-b)

Using this rule
N^2 - 62 = (n+ sqrt(62)) (n - sqrt(62))

The solution for this one is to make the statement = 0
0 = (n+ sqrt(62)) (n - sqrt(62))

N can either be +- sqrt(62)
5 0
3 years ago
Please help with number 20
Over [174]

Answer:

6x

2

−3−7x

=6x

2

−7x−3

=6x

2

−9x+2x−3

=3x(2x−3)+1(2x−3)

=(2x−3)(3x+1).

Then, f(x)=0⟹2x−3=0 and 3x+1=0.

Therefore, 2x=3 and 3x−−1.

That is, x=

2

3

, x=

3

−1

.

5 0
3 years ago
Solve for x: 12x +16y = 6
zubka84 [21]

Answer: x= 1/2- 4/3

At the bottom it says 0.5, so, 1/2= 0.5 and,

4/3= 1.33.....

Step-by-step explanation:

Add '-16y' to each side of the equation.

12x + 16y + -16y = 6 + -16y

Combine like terms: 16y + -16y = 0

12x + 0 = 6 + -16y

12x = 6 + -16y

Divide each side by '12'.

x = 0.5 + -1.3...y

Simplifying

x = 0.5 + -1.3...y

5 0
3 years ago
Lacey went to the fair. She paid $5 for the entrance fee. Each ride ticket cost $0.25. Lacey spent $12.50 at the fair. Which equ
Orlov [11]

Answer:

I  would divide

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
(Choice A)
Tasya [4]

Answer:

That is an obtuse scalene triangle

Step-by-step explanation:

Scalene- has no congruent sides

Obtuse - has an angle that is greater than 90

we can use Pythagorean theorem to confirm this

The Pythagorean theorem states that in an obtuse triangle the hypotenuse squared is greater than the two legs squared added together

so basically 7^2>4^2+5^2\\7^2=49\\4^2=25\\5^2=25\\25+16=41\\49>41

therefore it is an obtuse scalene

3 0
3 years ago
Read 2 more answers
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