Step-by-step explanation:
x - 1.2 = 3
x = 3 + 1.2
x = 4.2
Triangle ABC is similar to triangle XZY. Find the missing side x using proportions ( PLEASEE HELP ASAP)
Answer:
x=70º
Step-by-step explanation:
Triangle ABC, A/C=50º, B/C=40º
40º+50º=90º
Triangle XZY, Y/Z=20, Y/X=x
Since it is a right triangle it will add up to 90º.
So 90º-20=70
The missing angle x is 70
x= 70
The length of the unknown side of the triangle XYZ is 25 units.
What is similarity of triangles?
Two figures are similar if their corresponding angles are congruent , and the ratios of the lengths of their corresponding sides are equal. This common ratio is called the scale factor.
Given is Triangle ABC which is similar to triangle XZY.
Since both the triangles are congruent to each other, their corresponding sides will be in equivalent ratios. Therefore, we can write-
BC/YZ = AC/YX
40/20 = 50/x
x = (50 x 20)/40
x = 50/2
x = 25
Therefore, the length of the unknown side of the triangle XYZ is 25 units.
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This table shows the cost of different amounts of bananas.
Cost of Bananas
Weight
(pounds) Total Cost
(dollars)
1.5 0.87
4 2.32
4.5 2.61
What is the cost per pound of the bananas?
Answer:
0.29
Step-by-step explanation:
Because if you subtract 2.32 from 2.61 you get 0.29
Answer:
0.29
Step-by-step explanation:
Which equation is equivalent to (1/3)x= 27x+2?
multiply everything by 3
x=81x+6
-80x=6
x=6/-80
x=3/-40
Answer:
x= -3/40
x= -0.075
Step-by-step explanation:
What is the range of the function?
Answer:
D all real numbers
Step-by-step explanation:
Hope this helped
what are corresponding angles
Answer:
any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal.
Step-by-step explanation:
When two lines are crossed by another line (called the Transversal), the angles in matching corners are called Corresponding Angles. i attached some images to help show you :)
i hope this helps!! <3
Translate the following phrase to an expression: the difference between twenty and twice a number. Evaluate the expression for n = 3.
Answer:
22-2n or 22-2(3)
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
Rewritten as an expression it would be 20 - n^2, and with the variable substituted and multiplied, it will become 20 - 6.
20 - 6 = 14
PLEASE HELP!!!
Which answer choice shows the numbers in order from least to greatest?
A) 2/3, -1/2, 7/12, 0.82
Answer:
- 1/2 7/12 2/3 . 82
Am I right
Pete is having a cup of black coffee with breakfast. The glass weighs 100g and holds 100mL, so he says that the drink (the cup and coffee together) weighs 200g. Explain why Pete is mistaken
Answer:
The units g and mL measure different quantities.
Step-by-step explanation:
Pete knows the glass weighs 100g, so this is the weight of the cup.
It holds 100 mL, however, mL measures volume, not weight.
Pete is wrong about saying that the cup and coffee together weigh 200 g, because you cannot add two values together that have different units.
In this example, you cannot add together the weight of the cup and volume of the coffee, in order to get the total weight. You would have to find the weight of the coffee, then add that to the cup's weight.
So, Pete is wrong because you cannot add 2 values together that have different units.
Different quantities are measured by the units g and mL.
What is unit conversion?Multiplication or division by a numerical factor, selection of the correct number of significant figures, and unit conversion are all steps in a multi-step procedure.
Pete knows the glass weighs 100g, so this is the weight of the cup. It holds 100 mL, however, mL measures volume, not weight. Pete is mistaken when he claims that the coffee and cup combined weigh 200 g since you cannot add two values with different units of measurement.
In this case, you cannot calculate the entire weight by adding the weight of the cup and the volume of the coffee. You would need to determine the weight of the coffee and then increase it by the weight of the cup.
Therefore, Pete is wrong because you cannot add 2 values together that have different units.
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Please help pre algebra it’s super hard
Answer:
a reflection and then a translation
a translation and then a rotation
a rotation and then a reflection
Hope this helps
-2x + 10 +4x=70 (what is X?)
Answer:
x = 30
Step-by-step explanation:
-2x + 10 +4x=70
-10 -10
-2x + 4x = 60
2x = 60
/2 /2
x = 30
Answer:
x=30
Step-by-step explanation:
combine like terms to get
2x+10=70
then subtract 10 from both sides
2x=60
then divide both side by 2
x=30
Simplify the expression. Write the answer in scientific notation.
(4x10-5) (9x 10-5)
(4x 10-5) (9x 10-5) =
(Simplify your answer. Use scientific notation. Use the multiplication symbol in the math palette as needed.)
Answer:
so you take baby steps 4*10 then subtract 5 then 9*10 then subtract 5
Step-by-step explanation:
Just take baby steps then you will get it
The solution for the scientific notation will be 3.6 x 10⁻¹¹.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the scientific notation is calculated as below,
E = (4x 10⁻⁵) (9x 10⁻⁵)
E = ( 4 x 9 ) ( 10⁻⁵ x 10⁻⁵ )
E = 36 x ( 10⁻¹⁰)
E = 3.6 x 10⁻¹¹
Therefore, the solution for the expression will be E = 3.6 x 10⁻¹¹.
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If a dice is Rolled find the probibllity
C (x) = 0.05x+9.25
What is the total rental cost if Jose drove 40 miles?
V dollars
?
Answer:
11.25 dollars in 40 miles.
Step-by-step explanation:
Plugging 40 in for x, we get the equation C(x) = 0.05(40) + 9.25. We do the math, get 2 + 9.25, add, and get the answer 11.25.
Challenge The price of Stock A at 9 A.m. was $14.26. Since then, the price has been increasing at
the rate of $0.13 each hour. At noon the price of Stock B was $15.01. It begins to decrease at the
rate of $0.09 each hour. If the two rates continue, in how many hours will the prices of the two
stocks be the same?
In about hours, the prices of the two stocks will be the same.
(Round to the nearest tenth as needed.)
Answer:0.6
Step-by-step explanation ik because i was told after listening to some dumb kid telling me the wrong answer its 0.6
Eric took a test. All the questions have equal value. He answered 38 of the questions correctly.
This was 95% of the test questions. How many total questions were on the test?
Answer:
72% your welcome lolbrhdhhdvdceuegcstditdti
The quotient of a number and eleven.
Answer:
thats crazy man
Step-by-step explanation:
A.) The balance increases by approximately $0.20 everyday.
B.) The balance increases by approximately $150.00 everyday.
C.) The balance increases by $300.00 every month.
D.) The balance increases by $150.00 every month.
Answer:
b
Step-by-step explanation:
3rd time posting this dont skip need help ASAP and pls hurry bc i dont have much time i will give 10 pts + brainliest
Answer:
b 25 degrees
Who’s smart. You have a car that drives 30 miles per hour if your car drove 24 hours what mile would you be at.
Answer:
720
Step-by-step explanation:
Hope this helps:)
Answer:
You drove 720 miles
Step-by-step explanation:
You would use the equation 24x30 and that would give you 720 miles driven.
Yosef typed a 48-word paragraph in 1/3 minute. What is his typing speed, in words per minute? I’m desperate please help me
Answer:
54 Words Per Minute
Hope I helped!
Name the additive inverse of 5 + I
Answer:
so
Step-by-step explanation:
For example, the additive inverse of the positive number 5 is -5. ... This means that the additive inverse of a negative number is positive. For instance, if x equals -12, then its additive inverse is y = 12.
The additive inverse is (-5) + (-1)
what is additive Inverse?To get a result equal to 0, add the original number and the additive inverse by simply changing the sign of the integer. On the basis of negation of the original number, the characteristics of additive inverse are listed below. For instance, if x is the starting number, then -x is x's additive inverse.
Given:
5 + I
As, the additive inverse is the opposite sign of the given number.
For example, if the number is -6 and we have to find its additive inverse.
So, the additive inverse will be 6.
So, the additive inverse is (-5) + (-1)
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0.4(20-10m)+ 2.5-2m-12.5
Answer:
-2-6m
Step-by-step explanation:
Jenny watched a movie about aliens who never stop growing. Every alien is 10 centimeters tall at birth and grows exactly 8 centimeters each year. Let y represent the number of years since birth and h represent the alien's height in centimeters. Complete the equation that represents the relationship between y and h. y h 4 42 5 50 6 58 7 66
Answer:
h = 10 + 8y
Step-by-step explanation:
Given that :
Height of ght if all alien at birth = 10cm
Growth rate per year = 8 cm
Let:
y = number of years since birth
h = alien's height in centimeter
Relationship between h and y
h = Initial height + (growth rate per year*number of years)
h = 10 + 8y
A maps scale is 1 inch: 2.4 miles. The map shows an airport that is 5 inches away from a city. How far away is the airport actually from the city? ____ miles
Answer:
12 miles
Step-by-step explanation:
1 times 2.4 is 2.4. 5 inches times 2.4 is 12.
The points (-2, a) and (-4, -10) fall on a line with a slope of 8. What is the value of a ?
а=
Answer:
(-2, -3)
Step-by-step explanation:
4 - 2 =2 + 1= 3 welcome :)
A building casts a 33 m shadow when the Sun is at an angle of 26. to the vertical. How tall is the the building, to the nearest meter? Use a trigonometric ratio to find the distance FE. A building casts a 33 m shadow when the Sun is at an angle of 26. to the vertical. How tall is the building, to the nearest meter? Use a trigonometric ratio to find the distance F E.
so basically we just us do this
tan(26)=33/FE
Multiply to get rid of fraction
tan(26)FE=33
divide to get FE alone
FE = tan(26) * 33
FE=16.0951m
so it should be 16.0951m
Which of the following mapping diagrams represents a function?
Help ASAP
Answer:
Step-by-step explanation:
The answer is B.
Which expression is equal to 72
Answer: The last one is equal to 72
Step-by-step explanation:
2^3*3^2
2*2*2*3*3=72
Any expression with a __________ exponent is equal to ________.
Answer:
Any expression with a 0 exponent is equal to 1.
Need help ASAP! Tysm
Answer:
It is -7x + 5
Step-by-step explanation:
I could do a whole explanation, but I'm sure you want the answer quickly. So there ya go. Hope this helps!