Answers
the answer for y would be 7
Step-by-step explanation:
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Related Questions
tan y+cot y= sec y x csc y
prove the identity
(y is the variable)
Answers
Answer:
Step-by-step explanation:
tany+coty =
[tex]\frac{siny}{cosy} + \frac{cosy}{siny}[/tex]·
[tex]\frac{sin^{2}y + cos^{2}y }{cosysiny}[/tex]
[tex]\frac{1}{cosysiny}[/tex]
[tex](secy) (cscy)[/tex]
unit 1 test algebra 2
Answers
7) -7,0,5 A or (1)
8) 3x +5 C or (3)
9) 2 B or (2)
6) The solution set of the equation x² + 8x - 15 = 5x + 13 is {-7, 4}.
7) The zeroes of the expression 2x (x - 5) (x + 7) are {-7, 0, 5}.
8) The expression (x + 5) (x + 8) + (x + 5)(2x - 3) can be written as a product of (x + 5) and (3x + 5).
9) There are 2 integer solutions on the interval 0 ≤ x ≤ 10 for the equation x³ - 5x² + 2x + 13 = 5.
We have,
6)
x² + 8x - 15 = 5x + 13
Rearranging the equation:
x² + 8x - 5x - 15 - 13 = 0
x² + 3x - 28 = 0
Now, factorize the quadratic equation:
(x + 7)(x - 4) = 0
Setting each factor equal to zero:
x + 7 = 0 or x - 4 = 0
Solving for x:
x = -7 or x = 4
7)
2x (x - 5) (x + 7) = 0
Setting each factor equal to zero:
2x = 0 or x - 5 = 0 or x + 7 = 0
Solving for x:
x = 0 or x = 5 or x = -7
8)
(x + 5) (x + 8 + 2x - 3)
Simplifying the expression inside the parentheses:
(x + 5) (3x + 5)
9)
x³ - 5x² + 2x + 13 = 5
Substitute each integer value from 0 to 10 into the equation and count the number of solutions.
Substituting each integer value,
x = 0,
x³ - 5x² + 2x + 13 = 5
0 - 0 + 0 + 13 = 5
13 = 5
Not true.
Similarly,
x = 2,
x³ - 5x² + 2x + 13 = 5
8 - 20 + 4 + 13 = 5
25 - 20 = 5
5 = 5
True.
x = 4,
x³ - 5x² + 2x + 13 = 5
64 - 80 + 8 + 13 = 5
85 - 80 = 5
5 = 5
True.
There are two integer solutions:
x = 2 and x = 4.
Therefore,
The solution set of the equation x² + 8x - 15 = 5x + 13 is {-7, 4}.
The zeroes of the expression 2x (x - 5) (x + 7) are {-7, 0, 5}.
The expression (x + 5) (x + 8) + (x + 5)(2x - 3) can be written as a product of (x + 5) and (3x + 5).
There are 2 integer solutions on the interval 0 ≤ x ≤ 10 for the equation x³ - 5x² + 2x + 13 = 5.
Learn more about expressions here:
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Which graph shows the solution to the system of inequalities?
y <= x + 2
y > 2x – 3
Answers
Answer:
b
Step-by-step explanation:
6
HELP EASY 10 POINTS
If the circumference of a circle is 35 inches which is closest to the area
Answers
Answer:
about 97.48
Step-by-step explanation:
Answer:Well first we have the circumference of the circle 35 our first step is to divide it by pi to see what the radius is:
35/pi=11.1408460164
Now that we know what the radius of the circle we are going to square it and then multiply by pi to find what is the area of the circle:
11.1408460164²=124.118449961
124.118449961xpi=389.929610573 square inches
Now that we know what the area is of the circle we need to calculate which area is closest to the answer which happens to be A. 380 square inches.
help me I'm bout to breakdown on this and cry help I'm rlly not ok
Answers
Answer:
বাংলা ৬ নাম্বার প্রশ্নের উওর টা কি
Answer: 3/5 is the correct answer
A line passes through the points (-10, -3) and (-5, 1). What is the slope of the line?
Answers
Answer:
m= 4/5
Step-by-step explanation:
use the formula (y2 - y1)/ (x2 - x1)
(-10, -3) (-5, 1)
1-( -3)/-5-( -10)= 4/5
THIS IS FOR LOTS OF POINTS
Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store. What is the price per inch of a plant? Show your calculation.
Answers
Answer:
Step-by-step explanation:
Use the given functions to set up and simplify
inch.inches = 9.5inches =
25.82367737inchs
2.28 = 25.82367737inchs
inch=25.82367737inchs
Answer:
$.24 or 24 cents per inch
Step-by-step explanation:
9.5x = 2.28 <--- equation
9.5x/9.5 = 2.28/9.5 <---- divide both sides by 9.5
.24=x <---- final answer
Pretty easy please answer. 50 points and brainliest. If you spam you dont get anything.
Answers
Step-by-step explanation:
The independent variable is m the number of minutes a hose runs.
The dependent variable is g the number of gallons the hose sprays.
The number of gallons a horse sprays depends on the minutes the hose runs. Lets say the hose sprays a gallon in a minute. And let us say the hose runs for 5 minutes. That would mean the hose would have sprayed 5 gallons of water.
The minutes a hose runs does not depend on the gallons the hose sprays.
Brainlest-Pls help me pls thank you sm In advance
Answers
Answer: 90 divided by 45 equals 2 45+45=90
Step-by-step explanation:
1
Which of the following represents a
fraction that converts to a repeating
decimal with a value less than one?
A) 1/2
B) 4/3
C) 9/10
D) 479
Answers
Answer:
479
Step-by-step explanation:
Determine the domain and the range for this relationship.
Drag the tiles to the correct locations on the image. Not all tiles will be used.
(Several can be placed in one section, but not all of them will be placed.)
A. 0 ≤ x ≤ 6
B. 0 ≤ x ≤ 72
C. {0, 12, 24, 36, 48, 60, 72}
D. {0, 1, 2, 3, 4, 5, 6}
E. {0, 1, 2, 3, 4, 5, 6}
F. 0 ≤ y ≤ 72
G.{0, 6, 12, 18, 24, 30}
H. 0 ≤ y ≤ 6
Answers
Answer:
how are we supposed to know the answer if we don't know the problem?
Step-by-step explanation:
It makes no sense
5x -4y = -23
-5x + 9y =8
Answers
Answer:
Let's solve for x.
5x−4y=−23−5x+9y
Step 1: Add 5x to both sides.
5x−4y+5x=−5x+9y−23+5x
10x−4y=9y−23
Step 2: Add 4y to both sides.
10x−4y+4y=9y−23+4y
10x=13y−23
Step 3: Divide both sides by 10.
10x
10
=
13y−23
10
x=
13
10
y+
−23
10
Answer:
x=
13
10
y+
−23
10
Step-by-step explanation:
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write 6.1 as a mixed number and as an improper fraction. Do not try to simplify your answer
Answers
Answer:
6 1/10 mixed 61/10 improper
Step-by-step explanation:
Are 3/5 and 18/32 equivalent ratios? Explain how you know (be specific). If you just say yes or no you will not get full credit. *
Answers
Answer:
No they are not equivalent,
Step-by-step explanation:
3 x 6 is 18 and 5 x 6 is 30, not 32 so it is non-equivalent
Help me plzplzplzplz1
Answers
Answer:
The answer is 400 when you round it off to the nearest hundred.
In the figure below, D is the midpoint of AB, E is the midpoint of BC, and F is the midpoint of AC. Find the perimeter of triangle ABC.
Answers
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(( E )) is the midpoint of BC ,
Thus ;
[tex]BE = CE = 6[/tex]
So :
[tex]BC = 12[/tex]
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[tex] \frac{AC}{2} = DE \\ [/tex]
[tex] \frac{AC}{2} = 7.5 \\ [/tex]
Multiply sides by 2
[tex]2 \times \frac{AC}{2} = 2 \times 7.5 \\ [/tex]
[tex]AC = 15[/tex]
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[tex] \frac{AB}{2} = EF \\ [/tex]
[tex] \frac{AB}{2} = 8 \\ [/tex]
Multiply sides by 2
[tex]2 \times \frac{AB}{2} = 2 \times 8 \\ [/tex]
[tex]AB = 16[/tex]
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[tex]∆ABC \: \: Perimeter =
AB + BC + AC \\ [/tex]
[tex]
∆ABC \: \: Perimeter = 16 + 12 + 15 \\ [/tex]
[tex]
∆ABC \: \: Perimeter = 43[/tex]
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Done...
The perimeter of triangle ABC is 43.
The calculation is as follows:Since BE = CE = 6
So, BC = 12
Now
[tex]AC \div 2 = DE\\\\AC\div 2 = 7.5[/tex]
Now multiplied sides by 2
So,
[tex]2\times AC \div 2 = DE\\\\AC\div 2 = 7.5 \times 2[/tex]
AC = 15
Half of AB = EF
AB = 16
Now the perimeter is
= AB + BC + AC
= 16 + 12 + 15
= 43
Learn more: https://brainly.com/question/13286220?referrer=searchResults
As a salesperson, during the week, you are paid $50 plus $5 per sale.
This week you want your pay to be more than $100. Write an inequality for
the number of sales you need to make. Use x as your variable. *
Answers
Answer:
50+5x=100
Step-by-step explanation:
50 dollars is what you start with
you earn 5 dollars per sale
x represents the number of sales you need
If you need to know what x is, the answer is 10
Hope this helps!
help me i will give the best answer branliest
Answers
Answer:
y=-3x+2000
Good luck!
Answer:
for the first question the fifth option
and 666 for the second question
Step-by-step explanation:
⚠️ PLEASE I WANNA FINISH
Answers
Answer:
m = 0.666667*x+1 is the answer
Step-by-step explanation:
I really need the help?
Answers
Answer:
a=c because opposite vertices are always equal to one another
Step-by-step explanation:
Which set of values could be the side lengths of a 30-60-90 triangle?
A. 6, 12, 12\sqrt{3}
B. 6, 12, 12\sqrt{2}
C. 6, 6\sqrt{3}, 12
D. 6, 6\sqrt{2}, 12
Answers
Answer:
bbbbbbbbbbbbbbbbbbbbbbbb
Step-by-step explanation:
Answer:
4,4 sq 3, 8 sq 2
Step-by-step explanation:
Consider the system of inequalities and its graph.
y ≥
y ≤ x – 3
On a coordinate plane, 2 solid straight lines are shown. The first line has a positive slope and goes through (negative 8, negative 2) and (0, 0). Everything above the line is shaded. The second line has a positive slope and goes through (0, negative 3) and (3, 0). Everything to the right of the line is shaded. The section in quadrant 1 is labeled 3, the section in quadrant 2 is labeled 2, the section in quadrant 3 is labeled 1, and the section in quadrant 4 is labeled 4.
In which section of the graph does the actual solution to the system lie?
1
2
3
4
Answers
Answer:
3
Step-by-step explanation:
the point answer to the darker shaded solution lies in area 3. Therefore the answer is 3.
Beatrice threw a stone one and seven fourteenths yards. Tilly threw a stone nine fourteenths of a yard. What is a reasonable estimate of the difference between their two throws?
a. 1 yard
b. one and one half yards.
c. 2 yards
d. two and one half yards
Answers
PLEASE HELP I WILL GIVE BRAINLIEST IF 2 PEOPLE ANSWER! Find the area of a square with side length x when x is equal to the given value. Are the area of a square and the length of its side directly proportional? Justify Your Answer.
x = 15 inches.
The area of the square is __ square inches.
Answers
Answer:
The area of the square is 15²
the area of a square and the length of its side are directly proportional because The area of the square is x²=> when its edge decreases, the area of the figure decreases
Step-by-step explanation:
Given f(x) = -3x - 2, find the following:
a. f(3)
b. f(-1)
c. f(-2)
Answers
Answer:
Answer is f(3)
Step-by-step explanation:
i did test
Rotate ELMO 270° clockwise about the origin.
What are the coordinates of E’?
a. (1, 1)
b. (-1, 1)
c. (-1, -1)
d. (1, -1)
Answers
Please answer this question
B=3V/h
Solve for V
Answers
Answer:
V = [tex]\frac{Bh}{3}[/tex]
Step-by-step explanation:
Given
B = [tex]\frac{3V}{h}[/tex] ( multiply both sides by h )
Bh = 3V ( isolate V by dividing both sides by 3 )
[tex]\frac{Bh}{3}[/tex] = V
Which algebraic expression represents the phrase "seven more than half of a number"?
A. 7 - 1/2 x B. -7 + 1/2 x C. 1/2 x + 7 D. -1/2 x - 7
Answers
Answer:
that answer is C you are correct
Step-by-step explanation:
8а +а – 3 = 6а – 2а - 3
Answers
Answer:
a=0
Step-by-step explanation:
Answer: a=0
Step-by-step explanation:
8a+a−3=6a−2a−3
Step 1: Simplify both sides of the equation.
8a+a−3=6a−2a−3
8a+a+−3=6a+−2a+−3
(8a+a)+(−3)=(6a+−2a)+(−3)(Combine Like Terms)
9a+−3=4a+−3
9a−3=4a−3
Step 2: Subtract 4a from both sides.
9a−3−4a=4a−3−4a
5a−3=−3
Step 3: Add 3 to both sides.
5a−3+3=−3+3
5a=0
Step 4: Divide both sides by 5.
5a /5= 0/5
Answer: a=0
(hope that was helpful )
To make banana bread, Colin uses 3/4 of a cup of brown sugar for every 2 cups of flour. How much brown sugar should Colin use to make a small batch with only 1 cup of flour?
Answers
Answer:
[tex]he \: will \: need \to \: \boxed{\frac{3}{8} } \: of \: a \:cup \: of \: brown \: sugar \\ [/tex]
Step-by-step explanation:
[tex]if \: Colin \: uses \: \frac{3}{4} \: of \: a \: cup \: of \: brown \: sugar \: \\ for \: every \: 2 \: cups \: of \: flour. \\ then \: Colin \: will \: use \to \: ( \frac{3}{4} \div 2 \: ) \\ \: to \: make \: a \: small \: batch \: with \: only \: 1 \: cup \: of flour. \\ \frac{3}{4} \div \frac{2}{1} = \frac{3}{4} \times \frac{1}{2} = \boxed{\frac{3}{8} }[/tex]
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Answer:
3/8
Step-by-step explanation:
