Answer:
x = 5
Step-by-step explanation:
25 = 6x - 5 (add 5 on both sides)
+5 +5
30 = 6x (divide by 6 on both sides)
5 = x
Hope this helps ya!!
From 12:00 midnight to 6:00 a.m., the temperature decreased by 12°C. If the original temperature was 12°C, which expression can be used to represent this situation?
Answer:
12-12
Step-by-step explanation:
hope this helps tell me if it's right
Answer:
12 - 12
Step-by-step explanation:
If the temperature was originally 12°C it decreases by 12° then 12 - 12.
From 12:00 midnight to 6:00 am, the temperature decreased by 12°C. If the original temperature was 12°C.
Question: Which expression can be used to represent this situation?
12:00 midnight temperature = 12 °C.
6:00 am temperature decreased by 12 °C.
So 12 - 12.
Hope this helps (sorry if I'm wrong)
Given: P is a point on the perpendicular bisector, I of MN.
Prove: PM = PN
Answer:
Step-by-step explanation:
I can't make specific statements about the proof because the midpoint is missing.
Givens
There are two right angles created by where the perpendicular bisector meats MN. Both are 90 degrees.
MN is bisected by the point on MN where the perpendicular meets MN
The Perpendicular Bisector is is common to both triangles.
Therefore the two triangles are congruent by SAS
PM = PN Parts contained in Congruent triangles are congruent.
19 more than 9 times a number is less than or equal to 163. Which of the following represents the solution set of this problem?
Answer:
x ≤ 6
Step-by-step explanation:
Let the unknown number be x;
9 times the number is expressed as 9x
9 more than 9 times a number is expressed as 9x + 9
9 more than 9 times a number is less than or equal to 163 is then expressed as;
9x + 9≤ 63
≤ is the less than or equal to sign
Find the solution;
9x ≤ 63 - 9
9x≤54
x ≤ 54/9
x≤ 6
Hence the required solution is x ≤ 6
Please help please help help
Help
Did you hear the story about the piece of butter?
Answer:
I believe once it saw the cast iron skillet's beauty, it melted.
Step-by-step explanation:
No clue just that was the first thing in me mind.
If 500 ml of mineral oil are used to prepare a liter of mineral oil emulsion, how many grams of the oil, having a specific gravity of 0.87, would be used in the preparation of 1 gallon of the emulsion
Answer:
1646.5 g mineral oil
Step-by-step explanation:
i think thag the answer
In a car wash fundraiser, the money earned varies directly with the number
of cars washed. If four cars are washed, $14 is made.. Determine how much
money is made when 15 cars are washed.
if 15 cars were washed there would be $52.50
Which quadratic equation has roots - 2 and 1/5 :
Answer:
[tex]5 {x}^{2} \: + \: 8x \: - 2 \: = \: 0[/tex]
Step-by-step explanation:
[tex]sum \: of roots = - 2 + \frac{1}{5} = - \frac{8}{5} \\ product \: of \: roots = - 2 \times \frac{1}{5} = - \frac{2}{5} \\ from \: general \: equation \\ a {x}^{2} + bx + c = 0 \\ {x}^{2} + \frac{8}{5} x \: - \frac{2}{5} = 0 \\ 5 {x}^{2} \: + \: 8x \: - 2 \: = \: 0[/tex]
Sue baked 5 pies and cut each one into sixth. how much money would she make if she sold each slice for $0.75
Answer:
$22.50
Step-by-step explanation:
5 x 6 = 30 slices
30 x 0.75 = $22.5
Answer:
I think 22.5 dollars for the total
If 9 is less than 3 times a certain number is 15 find the number. Please answer!!!!
Answer:
8 is the number
Step-by-step explanation:
3x8= 24
24-9 is 15
A number line going from negative 2 to positive 2 in increments of 1. There are 2 equal spaces between each number. The line contains negative 2 labeled A, B, negative 1, C, 0, D, 1, E, 2 labeled F. Identify the location of each point on the number line. 0.5 is point . Negative one-half is point . –1.4 is point . 2 is point .
Answer:
ITS A B F ON EDGE GUYS THE PEOPLE IN COMMENTS RIGHT!!!!!1
Answer:
0.5 is point D
-1/2 is point C
-1.4 is point B
2 is point F
Step-by-step explanation:
Pls give brainliest!
Siiiiighh this is me right now -_-
Answer:
cute cat!
Step-by-step explanation:
You and your family enjoy baking Christmas cookies together. Last year, you baked 120 cookies to pass out to friends and family. However, since you are unable to share cookies this year, you made 60% less cookies. How many total cookies did you make this year? First person to anwser correctly, gets brainleist!
Answer:
We can make 48 cookies.
Step-by-step explanation:
60 percent of 120 = 72
120 - 72 = 48
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
4) What is the correct unit for the following measurement?
Dana wants to know how much space her books occupy in her room.
cubic centimeters (cm3)
meters (m)
Celsius (°C)
gm/cm3
grams (g)
liters (L)
Dr Wyzard passed out bags of Starburst for the best students. One bag contains 5
orange, 2 pink, and 3 yellow. What is the probability of randomly selecting an orange
candy, eating it, then randomly selecting another orange?
4/10 or 2/5 simplified
Hope this helps you out!
Apply the distributive property to factor out the greatest common factor. 90+27= equals
Answer:
1.
90+27
2.
90 = 9 x 10
3.
27 = 9 x 3
4.
So apply the distributive property would be:
90 + 27 = 9(10 + 3)
Step-by-step explanation:
Answer:
The greatest common factor of 90 and 27 is 9.
Using the distributive property , you could write: 9(10 + 3)
Please help me thank you!
How can I show that 3sin^2 x-cos^2 x=2 can be written as 4sin^2 x=3?
no answer needed, just take the points.
Answer:
You said
Step-by-step explanation:
No answer needed just take the points yey
Answer:
8^8
Step-by-step explanation:
Thx
Tamara wants to calculate the height of a tree outside her home. Using her clinometer (angle measuring device) she measures the angle from 35 feet away from the base of the tree and gets an angle of 62 degrees Tamara's eye level is 5.5 feet above the ground.
1. What trigonometric relationship (sine, cosine or tangent) would be used to determine how tall the tree is?
2. Write an equation to determine how tall the tree is, in feet.
3. How tall is the tree, in feet? Round your answer to the nearest tenth.
4. Marcus lives across the street from Tamara Marcus's eye-height is 4.25 feet, and he estimates that he views the top of the tree with an angle of elevation of 50 degrees and is standing 65 feet away from the tree. Are Marcus's estimates reasonable? Explain why or why not.
Answer:
61.922 feet
Step-by-step explanation:
For this problem, we simply want to set up a trigonometric function that computes the height of the tree, and we want to add the height of Tamara.
We are given a distance from the tree of 30 feet with an angle from her eye-level to the top at 62 degrees. So we can say the following:
y = tan(Θ) * x
Where Θ = 62 degrees, x = 30 feet, and y is the height of the tree from Tamara's eye level.
y = tan(Θ) * x
y = tan(62) * 30
y = 56.422
So we also need to include the height of Tamara to get the total height of the tree from the ground to the top.
56.422 ft + 5.5 ft = 61.922 ft
Hence, the total height of the tree is 61.922 feet.
The height of the tree is 71.32 feet.
What are trigonometric identities?Trigonometric identities are the functions that include trigonometric functions such as sine, cosine, tangents, secant, and, cot.
We set up a trigonometric function to get height of tree.
Distance ,
x = 35 feet away from tree base
Angle = 62⁰ at eye level
Then we get;
Y = tan(angle) x
Y = tan(62⁰) x 35
Y = 1.881 x 35
Y = 65.82 feet
We add Tamara's height to the total height of the tree that forms an equation as;
= 65.82feet + 5.5 feet
= 71.32 feet is the height of the tree
The height of the tree is 71.32 feet.
Learn more about trigonometric;
https://brainly.com/question/21286835
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PLEASE, PLEASE IM BEGGING YOU
Which of the following best defines an input? (4 points)
a
An input is the result of a relation or the function rule, usually the y-values in a set of ordered pairs or on a table or graph.
b
An input is a special type of relation for which there is a rule that pairs each input with exactly one output.
c
An input is a set of ordered pairs in which no y-value repeats.
d
An input is the value that determines another based on the relation or the function rule, usually the x-values in a set of ordered pairs or on a table or graph.
Answer:
d
Step-by-step explanation:
hope this helped!!!!!
Answer: d
An input is the value that determines another based on the relation or the function rule, usually the x-values in a set of ordered pairs or on a table or graph.
Step-by-step explanation: Its d because the function has one output for each input so d is the correct answer.
I also saw the question on a different persons test in brainly and it was d.
The perimeter of a triangle is 51 cm. The longest side is twice the length of the
shortest side. The third side is 3 cm longer than the shortest side. How long is each
side? Write an equation that represents the problem and then solve it.
Answer:
one is 12cm another is 24 and remaining is 15 cm
apply the definition of subtraction and properties of operations to find the result (3/8+2/3) - 3/8
Answer:
The result is [tex]\frac{2}{3}[/tex].
Step-by-step explanation:
Since there is no symbol in front of the first bracket, we can straight up remove it with no consequences.
Hence, the equation we get is:
[tex]\frac{3}{8} + \frac{2}{3} - \frac{3}{8}[/tex]
[tex]= \frac{2}{3}[/tex]
Therefore, the result is [tex]\frac{2}{3}[/tex].
Hope this helped!
Need help fast pls help
Answer:
b
Step-by-step explanation:
pentagon PQRST ~ pentagon XYZVW. find the value of b. will give brainlist
Answer:
Step-by-step explanation:
(4a - 3)/(3b + 1) = 39/(a + 1) You are not going to get a numerical answer for this. Cross multiply
(4a - 3)(a + 1) = 39(3b + 1)
4a^2 + a - 3 = 117b + 39
4a^2 + a - 42 = 117b
b = [tex]\frac{a^2 +a - 42}{117}[/tex]
Answer:
b = 3
Step-by-step explanation:
I think that the relations are the following
[tex]\frac{QP}{XY}=\frac{RS}{VZ}=\frac{PT}{XW}\\\\\frac{39}{13}=\frac{4a-3}{a+1}=\frac{5a+6b}{5b+1}\\\\3=\frac{4a+3}{a-1}=\frac{5a+6b}{5b+1}[/tex]
so we first solve for a and then for b
[tex]3=\frac{4a-3}{a+1}\\\\3(a+1)=4a-3\\\\3a+3=4a-3\\\\4a-3a=3+3\\\\a=6[/tex]
and now for b
[tex]3=\frac{5a+6b}{5b+1}\\\\3(5b+1)=5a+6b\\\\15b+3=5a+6b\\\\15b=5a+6b-3\\\\15b-6b=5a-3\\\\9b=5a-3\\\\b=\frac{5a-3}{9}\\\\b=\frac{5(6)-3}{9}\\\\b=\frac{30-3}{9}\\\\b=\frac{27}{9}\\\\b=3[/tex]
Write the equation of the line that passes through the points (-7,1) and (7,-6).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:
y-1=-1/2(x+7)
Step-by-step explanation:
Find the slope first using the slope formula.
y2-y1/x2-x1
-6-1/7--7
-7/14
Slope is -1/2
Now choose one of the coordinates and put it in point-slope form.
y-1=-1/2(x+7)
If x=1/2 and y=3/2, find the values of i) xy÷(x+y) ii) x+y ÷ x-y
Answer:
i) 3/8
ii) -2
Step-by-step explanation:
i) 1/2*3/2/(1/2+3/2)
3/4/2
3/4*1/2
3/8.
ii) 1/2+3/2 / 1/3-3/2
2/-1
-2.
Hope this helps :)
HELPPPP ME PLEASE ITS THE LAST QUESTION
Answer:
first one 5/8
Step-by-step explanation:
2 1/2 / 4 = 5/8
Andrew's fish tank measures
24 inches long, 10.5 inches
wide, and 13 inches high. What
is the volume of the fish tank?
MONS
15 volume of the fish tank
m+1=4m-32 solve for m.
please help!! which triangle is similar to ABC?
A. Triangle A
B. Triangle B
C. Neither
D. Both
Answer:
triangle A because the measurements would be the same. If you add 30 + 112, you get 150. Triangles add to 180, so the missing angle of the first one is 30.
this means triangle A has the same measurements as ABC