Answers
Answer:
107
Step-by-step explanation:
(x - 79)° + (x - 45)° = 90°
2x - 124 = 90
2x = 214
x = 107
Related Questions
Express as a product: 1-2cos(2a)
I've been really struggling with this. Please help & explain it.
Answers
Answer:
(2sin a - 1)(2sin a + 1)
Step-by-step explanation:
Here, we want to express what is given as a product
Mathematically;
cos2a = 1-2sin^2A
So we have;
1-2(1-2sin^a)
= 1 - 2 + 4sin^2a
= 4sin^2a - 1
Using the difference of two squares, this is;
(2sin(a) - 1)(2sin a + 1)
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. a) Simplify the expression and explain each step. (2 points) 4 ( 3 x + 2 ) − 2 b) Factor the expression completely. (1 point) 20 b − 16
Answers
Answer:
Step-by-step explanation:
To simplify the expression:
4(3x+2) - 2
The first step is to open the brackets
= 4 * 3x + 4* 2 - 2
= 12x + 8 - 2
= 12x - 6
Factor out the above expression, we get;
= 6(2x - 1)
To factor out the expression:
20b - 16
the factor that can be divided by 20 and 16 without remainder is 4;
So, we have:
= 4(5b - 4)
write the linear equation from the given information in slope intercept form (-1,3); slope=-3
Answers
Answer:
y = -3xStep-by-step explanation:
The standard expression of equation of a line in slope-intercept form is expressed as;
y = mx+c
m is the slope
c is the intercept
Given
slope m = -3
Point (x, y) = (-1, 3)
x = -1 and y = 3
Get the intercept
To get the intercept c, we will substitute the given values into the equation above to have;
y = mx+c
3 = -3(-1)+c
3 = 3 + c
c = 3-3
c = 0
Substitute m = -3 and c = 0 into the equation above;
y = mx+c
y = -3x+0
y = -3x
Hence the required linear equation is y = -3x
At one gas station, gas costs $2.75 per gallon. Write an equation that relates the total cost, C , to the number of gallons of gas purchased, g
Answers
Answer:
C (g) = 2.75g
Pls I need help with this geometry problem. It's due today.
Answers
Step-by-step explanation:
Yz / RT = SZ / ST
2X +2 / 3X -7 = 35 / 40= 7 / 8
8( 2x+2) = 7( 3x-7 )
16 x +16 = 21x 49
5x = 65
x =13
YZ = 2×13 +2 = 28
HELP FIND THE SLOPE. pLEASEEEEEEEE
Answers
Answer:
the slope is undefined
The exterior angle of a regular polygon is 60°.
What is the name of the regular polygon?
Answers
Step-by-step explanation:
exterior angle = 60°
exterior angle = 360/n
60° = 360°/n
60n = 360°
n = 6
A regular polygon with 6 sides is a HEXAGON.
Most units in the metric system are based
of the power of
1
5
0.1
10
Answers
Answer:
10
Step-by-step explanation:
please help will mark brainliest if correct
Answers
Answer:
Step-by-step explanation:
∠A or ∠SAM
Subtract.
(2x4−x2+5x−2)−(−x4+3x3+2x2−1)
Answers
Answer:
477
Step-by-step explanation:
:)
Given B(17,5), C(11,-3), D(-1,2), and E(x,-6), find the value of x so that BC || DE
Answers
Answer: x = 7
Step-by-step explanation:
-3 (x + 10)
HELP
PLEASE
Answers
Answer:
−3X−30
Step-by-step explanation:
please please help me!!
Answers
Answer:
5x+7
Step-by-step explanation:
every time it goes up by 5 so if that's the case if you 12 and subtract 5 then that's your constant cause that is where it started.
I hope this is good enough:
On a town map, each unit of the coordinate plane represents 1 mile. Three branches of a bank are located at A(−3, 1), B(2, 3), and C(4, −1). A bank employee drives from Branch A to Branch B and then drives halfway to Branch C before getting stuck in traffic. What is the minimum total distance the employee may have driven before getting stuck in traffic? Round to the nearest tenth of a mile if necessary.
The minimum total distance the employee may have driven before getting stuck in traffic is
miles.
Answers
Answer:
7.6 miles
Step-by-step explanation:
Given the coordinate points :
A(−3, 1), B(2, 3), and C(4, −1)
Distance (d) between A and B:
x1 = - 3 ; x2 = 2 ; y1 = 1 ; y2 = 3
d = √(x2 - x1)² + (y2 - y1)²
d = √(2 - (-3))² + (3 - 1)²
d = √25 + 4
d = 5.385 miles
BC :
d = √(x2 - x1)² + (y2 - y1)²
d = √(4 - 2)² + (-1 - 3)²
d = √2² + (-4²)
d = √4 + 16
d2 = 4.4721359 miles
(1/2) of d2 = 1/2 * 4.4721359 = 2.236 miles
Total distance = (5.385 + 2.236) miles
Total distance driven before getting stuck in traffic = 7.6 miles
what is an art and a science that deals with the collection,organization,creative presentation and analysis of data? A.physics B.statistics C. biology D.sampling
Answers
Answer:
The answer is B. Statistics
how do you do multiplication in 7th grade mathimatics
Answers
Answer:
Learn your timetables daily.
Step-by-step explanation:
You can find songs online to help you memorize and understand them in the simplest form.
Answer:
you should practice your timetables and do some math practice so you could understand other math like division.
Step-by-step explanation:
HELP!! Combining like terms with rational coefficients
− 2/1 (−3y+10)
Answers
Answer:
6y−20
Step-by-step explanation:
What is the value of |−44|?
Answers
Answer:
44
Step-by-step explanation:
Answer:
44
Step-by-step explanation:
absolute value just makes the number positive
Choose the TWO equations that have infinitely many solutions.
A
2(x+2) = 2 + 4
B
3(x + 1) = 3x + 2
С
3x + x = 4x
D
2(x + 1) = 2x + 1
E
3(x + 1) = 3x + 3
Answers
Answer:
C and E has All real numbers are solutions.
Step-by-step explanation:
hope this helps
If 1 1/2 cups of water fills 2/3 of a water bottle. How many cups of water are needed to fill 1 water bottle?
Answers
Answer:
I think its 2 1/4, sorry if i'm wrong
Step-by-step explanation:
the graph shows the height of a thrown ball x seconds after it is thrown. based on the situation, are there any constraints on the domain of the function
Answers
Answer:
The time can not be negative. Thus, the domain of the given graph function must have the interval [0, ∞].
In other words, t ≥ 0.
Step-by-step explanation:
We know that the domain of a function is the set of input or argument values for which the function is real and is defined.
Given that the graph is showing the height of a thrown ball x seconds after it is thrown.
We must check that the time can not be negative. Thus, the domain of the given graph function must have the interval [0, ∞].
In other words, t ≥ 0.
Answer:
more free points
Step-by-step explanation:
A small order of fries at Wendy’s has 90 more calories than the small order of fries at McDonald’s. If together they have 550 calories, how many calories are in the Wendy’s small order of fries?
Answers
Answer:
370
Step-by-step explanation:
can i get brainliest
Complementary and supplementary angles (no visual)
Za and Zb are complementary angles. Za measures 55°.
What is the measure of Zb?
Stuck? Watch a video or use a hint.
Report a problem
Pi
Tea
7 of 7
Answers
Answer:
b=35°
Step-by-step explanation:
complementary angles add up to 90°
a+b=90°
55°+b=90°
-55 -55
b=35°
hopefully this helps :)
Can you help me with this please cause I can't do math!
Answers
Answer:
6
Step-by-step explanation:
(3x-5)+(2x-1)+(x+1) = 6x-5 = 31
6x = 36
x = 6
Which of the following sets of numbers could NOT represent three sides of a triangle
Answers
Answer:
4, 10, 15
Step-by-step explanation:
Because 4 plus 10 is less than 15
Perimeter = 24 meters
(x + 3) m
2.xm
Answers
Answer:
umm
Step-by-step explanation:
What are the variable term in this expression 6x² +3ry + 3z
Answers
Answer:
x y and z?
Step-by-step explanation:
meg has $20 in a savings account that earns 10% annually. the interest is not compounded. how much will she have in 1 year
Answers
Step-by-step explanation: 10% of 20 is 2 so 20 + 2 = 22.
Hope this helps! ;)
What’s the absolute value equation for |x+4|=12
Answers
Answer:
8 and -16...............
| x + 4 | = 12 <=> x + 4 = 12 hoặc -x - 4 = 12 <=> x = 8 hoặc x = -16
what is the slope of any line that is perpendicular to the line y+3=2/5(x-1)
PLEASE YALL
Answers
Answer:
-5/2
Step-by-step explanation:
the slope of a perpendicular line is the opposite reciprocal