Answer:
See Explanation
Step-by-step explanation:
[tex]cos (90-A).sinA + sin(90 - A).cosA = 1 \\ \\ LHS = cos (90-A).sinA + sin(90 - A).cosA \\ \\ = sinA.sinA + cosA.cosA\\ \\ = sin ^{2} A + cos^{2} A \\ \\ = 1 \\ \\=RHS\\\\ reason \\ cos (90- \theta) = sin \theta \\ sin (90- \theta) = cos \theta \\ sin ^{2} \theta + cos^{2} \theta = 1 \\ \\ thus \: proved \\ [/tex]
what's the definition of electrolysis
Answer: chemical decomposition produced by passing an electric current through a liquid or solution containing ions. In chemistry and manufacturing, electrolysis is a technique that uses direct electric current to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell. Electrolysis is used in industry for the production of many metals and non-metals (e.g., aluminium, magnesium, chlorine, and fluorine). Electrolysis is commonly employed for coating one metal with another. The method of coating one metal with another using an electric current is called electroplating.
Hope this helps....... Stay safe and have a Merry Christmas!!!! :D
Joy wants to build a rectangular garden he plans to use a side of a river from one side of the garden so he will not place fencing along the side of the garden he has 92 yards of fencing material what is the maximum area that he will be able to enclosed
Answer:
I think the greatest area is 1050 yards.
Find the coordinates of quadrilateral "WXY' after a dilation with the scale factor of 2.
Original coordinates:
V(6, 2), W2,4), X-3, -2), Y(3, -5), scale factor of 2
8
W
0 -86
10
12
NEED HELP ASAP
Answer:
2,1
Step-by-step explanation:
Answer: no
Step-by-step explanation:
A peqch pie is made with 13 peaches, which are evenly distributed throughout the pie. If Joe ate one slice that contained exactly 5 peaches, what was the angle measure of the slice to the nearest tenth of a degree?
Answer:
138.5°
Step-by-step explanation:
Since the peach pie is a circle, we have a total angle of 360°.
We need to determine what fraction of the total pie of 13 peaches is the 5 peaches contained in Joe's slice.
This is number of peaches in Joe's slice/total number of peaches in pie = 5/13. To find the angle Joe's slice measures, we multiply 5/13 by 360°.
So, 5/13 × 360°
= 0.3846 × 360°
= 138.46°
≅ 138.5° to the nearest tenth of a degree
A line passes through (2, 5) and (8, 10). Find the value of y if (12, y) lies on the line. correct answer gets brainliest
Answer:
[tex]y = 6[/tex]
[tex]hope \: it \: helps... \\ mark \: as \: brainliest.....[/tex]
Priya has a recipe for banana bread. She uses 7/1/2 cups of flour to make 3 loaves of banana bread. Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour. Which of these equations represents the relationship between b and f?
Answer:
5b=2f
Step-by-step explanation:
Priya uses [tex]7\dfrac{1}{2}[/tex] cups of floor to make 3 loaves of banana bread.
Andre will follow the same recipe. He will make b loaves of banana bread using f cups of flour.
To find the relation between b and f, the steps are as follows :
[tex]\dfrac{\text{cups of flour}}{\text{loaves of banana bread}}=\dfrac{7 \dfrac{1}{2}}{3}\\\\=\dfrac{\dfrac{15}{2}}{3}\\\\=\dfrac{15}{2}\times \dfrac{1}{3}\\\\=\dfrac{5}{2}[/tex]
It means,
[tex]\dfrac{f}{b}=\dfrac{5}{2}\\\\5b=2f[/tex]
So, the relationship between b and f is "5b=2f".
Answer:
5b = 12f
Step-by-step explanation:
Solve the equation 14=-(x-8)
Answer:
x = -6
Step-by-step explanation:
Answer:
x=-6
Step-by-step explanation:
14=-(x-8)
14=−x+8(Distribute)
flip equation:
−x+8=14
Subtract 8 from both sides
−x+8−8=14−8
−x=6
divide by -1 both sides
x=-6
which equation is equivalent to x2+7x+12/ x2-x-12
Answer:here try both of these
x=4
x=3
Step-by-step explanation:
Can someone help me with this
Answer: <2 is 40 degrees still.
Step-by-step explanation:
Both Angle 1 and Angle 2 are corresponding angles (aka Same Side Angles)
Help me please i dont know
==========================================================
Explanation:
Sort the values from smallest to largest: {2, 5, 6, 10, 10}
Now cross off the first and last values to get this smaller set: {5, 6, 10}
Repeat the process one more time and we get this: {6}
This shows 6 is the middle most item of the original sorted set above. Therefore, 6 is the median.
help for 10 years good luck
Answer:
The answer is 8
Step-by-step explanation:
I need the good luck :)
the legnth of a rectangle is 4 times the width. the primiter is 120 cm. find the width and the length of the rectangle.
Find the solution set for 8x - 3 = 2(x - 1/2)
Answer:
x = 1/3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
8x - 3 = 2(x - 1/2)
Step 2: Solve for x
Distributive 2: 8x - 3 = 2x - 1Subtract 2x on both sides: 6x - 3 = -1Add 3 to both sides: 6x = 2Divide 6 on both sides: x = 1/3Which function is best represented by the graph?
find the value of x
do 5 and 7
Answer:
#5 = 14.4
#6 = 8.4
Step-by-step explanation:
Twelve waters cost $9. How many can you buy with $3?
Answer:
4 bottles of Water
Step-by-step explanation:
First, we need to find how much each water costs. So, I created this equation below.
9/12=?
The answer to the equation is .75, or 75 cents.
So, we can now make yet another equation to find the amount to buy with 3 dollars.
3/.75=?
The answer to that equation is 4.
Thus, the answer is 4 bottles of water.
15 points please help me ???? ASAP
please help im crying and failin math i have a 41 f
Answer: d
Step-by-step explanation: trust me
Answer:
C) The depth the scuba diver is before he/she begins the ascent to the surface.
Step-by-step explanation:
This would be your answer because it is asking what the y-intercept of the graph represents. On the graph the y-intercept is labeled Depth(m), which represents the meters the diver assented to reach the surface from where they were originally at.
Which is the solution for ln(3x - 5) = ln(11) + ln(2) ?
Answer:
B: x=9
Step-by-step explanation:
You have to use the property of logarithms
that says ln A + ln B = ln AB. So here we have
ln (3x - 5) = ln 11 + ln 2 = ln 22
Therefore 3x - 5 = 22, from which x = 9
WHOEVER ANSWERS IT WILL GET BRAINST DUE IN 5 MINUTES!!!!!
Answer:
Its b
Step-by-step explanation:
p(x)=(2x^2-9x+7)(x-2)
Answer
Answer:
p(x)=(2x²-9x+7)(x-2)
=(2x²-2x-7x+7)(x-2)
=[2x(x-1)-7(x-1)](x-2)
=(x-1)(2x-7)(x-2)
Pls help it’s not that hard
Answer:
what is the question
Step-by-step explanation:
???????1huhuh
Can someone help me please!!
I AM HERE TO HELP--- nope I'm sorry
!00 points and Brainliest plzzzz help, I will report false answers though
Answer:
4x+y=17 that the answer
Step-by-step explanation:
Answer:
-4x-17=y
Step-by-step explanation:
Distribute the -4 into the parenthises. Then subrtract the 1 from both sides.
Please help me with a math question ASAP!!! Will give Brainliest
Below is a screenshot of the problem
Answer: 128
Step-by-step explanation: 3 x -2 + 70 = 64 + -2 + 70 = 128
Which answer choice shows the numbers in order from least to greatest?
A. 4.1, 4, 0, -0.5, -6/2, -10
B.-10, -6/2, -0.5, 0, 4, 4.1
C. -0.5, -6/2, -10, 0, 4, 4.1
D. -10, -0.5, -6/2, 0, 4.1, 4
What equation is a proportion?
A. 1/3 = 1/4
B. 3/4 = 6/9
C. 5/8= 20/32
D 7/9 = 21/28
Answer:
c. 5/8= 20/32
Step-by-step explanation:
because 5*4=20 and 8*4=32
A recipe for chicken noodle soup calls for 1 3/4 cups of chicken broth. Peggy wants to triple the recipe. How many cups of chicken broth will she need?
Step-by-step explanation:
multiply 1 3/4 by 3
7/4×3
21/3=
5 1/4
Answer:
1. Less than 3
2. 9/4
Step-by-step explanation:
EL HFG es un triangulo isosceles. El angulo H
es el angulo del vertice
EL HG eš=3X -5, FG =×-1 y HF=×+7 Encuentra el valor de x y las medidas de HG,FG, y HF
HE
y
Pls answer this is urgent
Answer:
9 hours
Step-by-step explanation:
12 times 9 equals 108
108 - 9 equals 99
