In triangle ABC, a = 8, b = 6, and C = 60°. Find the measure of A. 16° 46° 74° 106°
Answers
Related Questions
The sum of three consecutive numbers is 84. What is the largest of these numbers? (5 points) a 28 b 26 c 29 d 27
For f(x) = 3x +1 and g(x) = x2 – 6, find (f- g)(x).
What is 1÷0?and is it possible
A bag contains 6 red marbles, 4 blue marbles, 7 green marbles, and 3 yellow marbles. a marble is drawn from the bag and is not replaced. then a second marble is drawn. What is the probability that both marbles drawn were red? 9/100 3/38 3/40 9/95
Answers
Given the exponential equation 4x = 64, what is the logarithmic form of the equation in base 10?
x = log 64 / log 4
Round to nearest hundredth
Answers
v = -(3) ± √((3)² - 4(1)(-5))
2(1)
v = -3 ± √(9 + 20)
2
v = -3 ± √(29)
2
v = -3 ± 5.38
2
v = -1.5 ± 2.69
v = -1.5 + 2.69 or v = -1.5 - 2.69
v = 1.19 or v = -3.19
4x-3y=15
8x^2-27y^2=45
Answers
8 x² - 27 y² =45
Isolate y for 4 x - 3y = 15
4 x - 3y = 15 ( add 3y to both sides ):
4x-3y +3y = 15 + 3y
4x = 15 + 3y
Divide both sides by 4 :
4x / 4 = 15 + 3y / 4
x = 15+3y / 4
Plug the solutions x = 15+3y / 4 into : 8 x² - 27 y²=45
8 ( 15+3y / 4 )² - 27 y² = 45
1/2 ( 3y+15)² - 27 y² = 45
Multiply by LCD = 2
9 ( y+5)² - 54 y² = 90
-45 y² + 90 y + 225 = 90
- 45 y² + 90 y = 225 - 90
-45 y² + 90 y = 135 = 0
-45 ( y + 1 ) ( y - 3 ) = 0
Using the zero factor principle:
Solve ( y + 1 ) = 0
y = - 1
Solve ( y - 3 ) = 0
y = 3
y = -1 and y = 3
Plug the solution y = -1 , y = 3 into : 4 x - 3 y = 15
4 x - 3 y = 15 for - 1 :
4 x - 3 ( - 1 ) = 15
4 x + 3 = 15
4 x = 15 - 3
4 x = 12
x = 12 / 4
x = 3
For 3 :
4 x - 3 y = 15
4 x - 3 ( 3 ) = 15
4 x - 9 = 15
4 x = 15 + 9
4 x = 24
x = 24 / 4
x = 6
Therefore the final solution :
y = 3 , x = 6
y = - 1 , x = 3
hope this helps!
A.) 42.00
B.) 104.25
C.) 125.25
D.) 167.25
Answers
- 21.00
-----------
125.25
answer is C.
Group of answer choices
2x^2+20x+100
9x^2+24x+16
(7−3x)^2
(5x+4)(5x−4)
(1−2x)(−2x+1)
4^2+6+9/4
Answers
The expressions that are perfect squares are:
2x² + 20x + 100
9x² + 24x + 16
(7 - 3x)²
To determine which expressions are perfect squares, we need to check if they can be written in the form of (a + b)², where a and b are real numbers.
Let's go through each expression:
2x² + 20x + 100:
This expression can be factored as (x + 10)², so it is a perfect square.
9x² + 24x + 16:
This expression can be factored as (3x + 4)², so it is a perfect square.
(7 - 3x)²:
This expression is already in the form (a - b)², so it is a perfect square.
(5x + 4)(5x - 4):
This is the difference of squares, not a perfect square itself.
(1 - 2x)(-2x + 1):
This is the difference of squares, not a perfect square itself.
4² + 6 + 9/4:
Simplifying, we get 16 + 6 + 9/4 = 22 + 9/4.
This expression is not a perfect square.
To learn more on Expressions click:
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Answer:
2x^2+20x+100, 9x^2+24x+16, (1−2x)(−2x+1), (5x+4)(5x−4), (7−3x)^2
Answers
Answer: 10.5
Step-by-step explanation:
I know this cause I'm smart lol