Answer:
x ≈ - 5.32, x ≈ 1.32
Step-by-step explanation:
Given
x² + 4x - 7 = 0 ( add 7 to both sides )
x² + 4x = 7
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2) x + 4 = 7 + 4
(x + 2)² = 11 ( take the square root of both sides )
x + 2 = ± [tex]\sqrt{11}[/tex] ( subtract 2 from both sides )
x = - 2 ± [tex]\sqrt{11}[/tex]
Then
x = - 2 - [tex]\sqrt{11}[/tex] ≈ - 5.32 ( to 2 dec. places )
x = - 2 + [tex]\sqrt{11}[/tex] ≈ 1.32 ( to 2 dec. places )
what is the value of y?
Answer:
g. 8[tex]\sqrt{2}[/tex]
Step-by-step explanation:
since it's a 45 45 90 triangle, both the legs are the same (8) and the hypotenuse(y) would be 8 rad 2 :)
Find d.
(Please explain why it is the answer you picked, I’m having a hard time understanding, my teacher gives us lessons to teach ourselves but I don’t even know how to start)
Answer:
i dont know if its right since i havent done trig in ages but
[tex]3 \sqrt{3} [/tex]
Step-by-step explanation:
tan(30)x9?
put the opposite angle inside the () since were doing toa which is tan(sin)=opposite/adj
so if we rearrange the formula to make opposite the subjects its
opposite=tan x adj
this is probably wrong so u might want to check with someone else
(1/2 - 1/2) - (-1/16 + 1/16)
Answer:
I think the answer is 0. .......
Write two equivalent expressions for 15(3 + w).
1.
2.
What is the distance between points (8, 3) and (3, 1) on the coordinate plane?
A.) 3 units
B.) √21 units
C.) 29 units
D.) 7 units
WILL MARK BRAINLIEST!!!!
Answer: The correct answer is 29 units
Step-by-step explanation: Can i Get the brainliest answer?
The distance between points (8, 3) and (3, 1) on the coordinate plane is √29 units.
Given that, the distance between points (8, 3) and (3, 1) on the coordinate plane.
What is distance formula?The distance formula which is used to find the distance between two points in a two-dimensional plane is also known as the Euclidean distance formula. On 2D plane the distance between two points (x1, y1) and (x2, y2) is Distance = √[(x2-x1)²+(y2-y1)²].
Now,
Put, (x1, y1)=(8,3) and (x2, y2)=(3,1) in distance formula, that is
Distance = √[(1-3)²+(3-8)²]
= √(4+25)
= √29 units
Therefore, the distance between points (8, 3) and (3, 1) on the coordinate plane is √29 units.
To learn more about the distance formula visit:
https://brainly.com/question/27262878.
#SPJ6
Which equation represents the line that passes through (0,0) and is perpendicular to y= -4/3x + 3
Answer:
y=3/4x
Step-by-step explanation:
Before the celebration for
Groundhog Doy, the city
set up on hexogonal
barner around the park. If
each side of the barrier
was 145 yards long, how
mony feet of fencing were
used to create the barrier?
Answer:
Doin it for the bag!!
Is 2x+7=-3x+8 one solution?
Answer:
yes, it is x=1/5
Step-by-step explanation:
i can give you the steps if you want
what is the value of -5 ?
Answer:
5
Step-by-step explanation:
You just change the signs
Answer: it will depended on the -5 i think if you write it in standard form
Step-by-step explanation:
Can someone explain how to do this? Will mark as brainliest
Answer: x is the angle of the tricundicular angle of the imperfect triangle. It’s like area but it’s an imperfect triangle, there’s is also 2 different numbers that u should get from this
Step-by-step explanation: pls mark brainliest
Please help due today
Answer:
160 - 2
120 - 1 1/2
240 - 3
Step-by-step explanation:
80 km driven every hour
A cookie recipe requires 2 pounds of butter to make 18 dozen cookies. If a baker wants to make only 3 dozen cookies, which proportion can he use to find b, the number of pounds of butter he needs.
2/18 = b3
5/18 = b3
2/18 = 3b
3/18 = 2b
Please help if you want BRIANLEIST!!
Answer:
9/9 × 7 is equal to 7
9/9 × 7 =
9/9 × 7/1 =
9 × 7 = 63
9 × 1 = 9
63/9 ÷ 9 = 7
help, please!!!its urgent
Answer:
Step-by-step explanation:
its f because its pretty easy
LOL PLZ HELP Which kind of function best models this relationship?
Time (months) Views
0
50
2
313
4
1950
6
12,210
76,300
8
10
476,800
Choose 1 answer:
(A A
Linear
B
Exponential
Answer:
Exponential function
Step-by-step explanation:
Plssssss help me. Ty
Answer:I believe it is the 2nd and 3rd one because 3 miles per hour and 1.5 miles away doesn’t make sense and the other two work out
Step-by-step explanation:
Solve for b.
b = ✓ [?]
15
8
b
Pythagorean Theorem: a2 + b2 = c2
Enter
Answer:
161
Step-by-step explanation:
8² + b² = 15²
first square 8 = 64
then square 15 = 225
ok.
225 - 64 = 161...
please help me pleeeeeeaaassseee
Answer:
Step-by-step explanation:
answer no 3:
1] Factor out the common term 2.
2(3x+y) = -26
2] Divide both sides by 2.
3x+y= -26/2
3x+y = − 13
3]Subtract y from both sides.
3x = - 13-y
4] Divide both sides by 3.
x = -13-y/3
Part 2:-
Add 6y to both sides.
x=21+6y
x=21+6y
PLEASE HELP MEH I"M CONFUZLED
Write an expression for t divided by 218
Answer:
you have to write an expression for 't' divided by 218. Basically just do this
t ÷ 218
Step-by-step explanation:
Multiply. (x-6)(x+4) with work.
Answer:
(x+-6)(x+4)
(x)(x)+(x)(4)+(-6)(x)+(-6)(4)
x^2+4x-6x-24
Answer is x^2-2x-24
Step-by-step explanation:
Evaluate 641/2 x
10-2
Give your answer as a fraction in its simplest form
Answer: 641/2x 10-2 it is 3203
Step-by-step explanation:
I need help......................
Answer:
ok....................
Step-by-step explanation:
Someone help me please
Step-by-step explanation:
the answer is
About 50 inches
A school group rented a banquet room for $110. They also paid $15 for each person (p) at the banquet. The total bill was $1,460. Which equation models the total cost for the group to rent the room?
A-15 + 110p = 1,460
B-10 + 15p = 1,460
C-110(p + 15) = 1,460
D-15(p + 110) = 1,460
Answer:
10+15p =1460
Step-by-step explanation:
write the equation of a line from the graph
Answer:
you take the graphs information and you write it in an equation.
Step-by-step explanation:
you take the graphs information and you write it in an equation.
What are the roots of the equation?
102
The harbor at Green Top Lake has a lot of algae. However, as it gets colder, algae starts dying. At the beginning of fall, there 150,000 square feet of algae. Suppose half of the algae dies per month. What is the relationship between time and amount of algae?
discrete or continuous
Answer:
Discrete.
If it was continuous, probably all the algae would have died.
Discrete
It is the amount of time of an event. Fall is a type of event, which lasts for a period of time.
Find the amount Enca owes at the end of 3 years if $6500 is loaned to her at a rate of 4% compounded monthly
Answer:
7311.616
Step-by-step explanation:
6500 x 1.04^3
The graph of f(x) = is stretched vertically by a factor of 2 and then
shifted up 5 units to create the function g(x). What is the rule for g(x)?
Answer:
g(x)= 2x^2 + 5 should be right
Step-by-step explanation:
what's 10/75 simplified?
Answer:
The answer to your question is 2/15.
Step-by-step explanation:
Just divide it by 5
