Answer:
Step-by-step explanation:
20
Aida applied the distributive property to write the equivalent expressions below.
15 + 21 = 3 (4 + 8)
What is Aida’s error?
Aida used 3 as the factor, which is not common to 15 and 21.
Aida did not correctly divide by the common factor to get (4 + 8).
Aida did not apply the correct operations to the expressions.
Aida wrote two expressions that are not equivalent.
Answer:
The answer is b
Step-by-step explanation:
Answer:
Aida's error was B
Step-by-step explanation:
For each question, solve for the length of the unknown side, as
denoted by the variable. You may round your answers to the nearest
tenth, if necessary. Make sure you show all steps needed to solve the
problem.
Answer:
[tex]a=9[/tex]
Step-by-step explanation:
In this problem, you can use the Pythagorean Theorem ([tex]a^{2} +b^{2} =c^{2}[/tex]) to find what a is. The steps are shown below:
Steps (variables a, b, and c are in italics):
-You can rearrange the formula from the Pythagorean Theorem, which is[tex]a^{2} +b^{2} =c^{2}[/tex] to only get a because we want to know what a is.
Rearranged: [tex]a=\sqrt{c^{2}-b^{2} }[/tex] or [tex]a=-\sqrt{c^{2}-b^{2} }[/tex] It has to ways/options for a because when finding the square root of a number, it can be either positive or negative. But in this problem, it’s going to be positive because we’re finding the length of something.
-Since we know what c and b are, you can plug them into the new formula:
[tex]a=\sqrt{15^{2}-12^{2} }[/tex]
-Simplify it:
[tex]a=\sqrt{225-144}[/tex]
-Subtract inside the radical:
[tex]a=\sqrt{81}[/tex] Then simplify it to get [tex]a=9[/tex].
You can check your answer by putting a back into the original Pythagorean Theorem formula ([tex]a^{2} +b^{2} =c^{2}[/tex]):
Steps
-Plug a, b, and c into the formula [tex]a^{2} +b^{2} =c^{2}[/tex]:
[tex](9)^{2} +(12)^{2} =(15)^{2}[/tex]
-Simplify to get:
[tex]81+144=225[/tex]
-Add:
[tex]225=225[/tex] This is very true. So our answer is correct.
ANSWER: [tex]a=9[/tex]
Sorry for the long explanation, but I hope you understand and that this helps with your question! :)
Answer:
a = 9Step-by-step explanation:
lets make is short and simple
Pythagorean theorem: a² + b² = c²
a² + 12² = 15²
a² = 15² - 12²
a = √81
a = 9
Find the volume, in cubic feet, of the composite solid below, which consists of a pyramid sitting on top of a cube. The pyramid has the same base as the cube.
Answer:
32
Step-by-step explanation:
Solve for x. 2.5/10 = x/35
Answer:
x is 8.75
Step-by-step explanation:
cross multiplying
10x = 35(2.5)
10x = 87.5
x = 8.75
What is another way to write the equation
Answer:
the 2nd one
Step-by-step explanation:
all the other ones don't make 6
Which is NOT an example of kinetic energy
Question 8 options:
a skateboard rolling down a hill.
an arrow after it has hit the target and is at rest.
a skydiver as they decrease speed after opening their parachute.
an elevator moving up to the 3rd floor,
Answer: an arrow after it has hit the target and is at rest.
Step-by-step explanation:
Kinetic energy has to do with energy which a body possesses by virtue of being in motion. The arrow is not in motion anymore
If a certain medicine cures 85% of the people who take it,what is the probability that, if 6 people take the medicine, exactly 4 will be cured?
Answer:
if 6 people take the medicine, around 5 people will get cured if the cure probability is 85%.
Step-by-step explanation:
Given that a certain medicine cures 85% of the people who take it.
As 6 people take the medicine, we need to determine how many will be cured.
As
85% = 85/100 = 0.85
All we need is to multiply 6 with 0.85.
i.e. 6 × 0.85 = 5 (Rounded to the nearest 1 or the Ones Place)
Thus, if 6 people take the medicine, around 5 people will get cured if the cure probability is 85%.
PLS ANSWER I HAVE TO FINISH MY TEST BY THE END OF CLASS WHICH IS IN 5 MIN!!! I WILL GIVE BRAINLIST!!!!!!
Geno invested $2,000 into an account that earns 8.5% interest compounded annually. How much interest will Geno earn after 3 years?
A. $554.58
B. $513
C. $2,513
D. $2,554.58
Answer:
8.5% interest would yield $170 annually for a total interest earnings of $513
Step-by-step explanation:
A customer has a credit card that charges 18% simple interest every year. How much interest will the customer save
by paying off a credit card debt of $5,000 at the end of 1 year instead of at the end of 3 years?
The customer will save interest by paying off a credit debt is $1,800 at the end of 1 year instead of at the end of 3 years
What is simple interest?Simple interest is the concept that is used in many companies such as banking, finance, automobile, and so on.
A customer has a credit card that charges 18% simple interest every year.
The customer saves by paying off a credit card debt of $5,000 at the end of 1 year instead of at the end of 3 years.
Interest for three years will be
[tex]\rm A_3 = \dfrac{PRT}{100}\\\\\\A_3= \dfrac{5000*18*3}{100}\\\\\\A_3= 2700[/tex]
Interest for one year will be
[tex]\rm A_1 = \dfrac{PRT}{100}\\\\\\A_1= \dfrac{5000*18*1}{100}\\\\\\A_1= 900[/tex]
The saved amount will be
A = A₃ - A₁
A = 2700 - 900
A = 1800
The customer will save interest by paying off a credit debt is $1,800 at the end of 1 year instead of at the end of 3 years
More about the simple interest link is given below.
https://brainly.com/question/2793278
write 3.9 x 10 exponent -4 in standard form
Answer:
0.00039
Step-by-step explanation:
13
Complete the table of equivalent ratios.
9
5
10
20
25
Answer:
Step-by-step explanation:
3 6 9 12 15
5 10 15 20 25
What is the value of this expression? 1.25 + 8.25 × 4 ÷ (4.75 + 0.75) Group of answer choices 6.91 7.25 8.75 8.95
Answer:
b
Step-by-step explanation:
Answer:
the answer is 7.25
Step-by-step explanation:
Hope this helps :)
21 boys and 14 girls. What is the ratio of girls to boys in Ms. Hawthorne's class?
Answer:
14 to 21
Step-by-step explanation:
reverse of 21 to 14 = 14 to 21
HEELLLPPPP MEEE 100 POINTS!!!
Juan has a collection of 13 dice, 5 of which have eight sides. If Juan randomly rolls 4 dice, what is the probability that exactly 2 of the chosen dice have eight sides? Write your answer as a decimal rounded to four decimal places.
Answer:
38
Step-by-step explanation:
X^2 -4x + 4 = 9, determine the discriminant
A. -36
B. 0
C. 6
D. 36
Use properties to evaluate 3/4 (1/5÷ 3/5)(-8)
A: -5
B-2
C:2
D:5
Answer:
the answer is b. -2. :)
Step-by-step explanation:
i took the test, i hope this helps <3
Thank you so much for you help plz dont answer this unless your KeianaLol25
Answer/ Step-by-step explanation:
1. leg
2. leg
3. hypotenuse
4. hypotenuse
5. leg
6. leg
Legs are the sides that connect at a right angle. The hypotenuse is the side across from the right angle.
HELP DUE TOMORROW ASAP BAINLYEST
Answer:
B is the correct answer
Step-by-step explanation:
3/12 = 1/4 = 0.25
Answer:
Step-by-step explanation:
(B)
write a paragraph about the activites that you mostly do in holidays
The diagram shows a triangle.
76
P+49
P+13
What is the value of p?
Answer:
40
Step-by-step explanation:
76p+49p+13
=(76-49)p+13 [ plus (+) plus = minus(-) ]
=27p+13
=40p or p=40 ans
Point P is the center of the circle in the figure above. What is the value of x?
Answer:
x = 80°
Step-by-step explanation:
To find x, we need to create an equation.
Recall that the sum of all the 4 interior angles of a quadrilateral = 360°.
Therefore:
m<B + m<A + m<C + m<P = 360°
m<B = 20° (given)
m<C = 20° (given)
m<A = ½*x = x/2 (inscribed angle theorem)
m<P = (360 - x)°
Plug in the values and solve for x
[tex] 20 + \frac{x}{2} + 20 + (360 - x) = 360 [/tex]
[tex] 20 + \frac{x}{2} + 20 + 360 - x = 360 [/tex]
Collect like terms
[tex] 20 + 20 + 360 + \frac{x}{2} - x = 360 [/tex]
[tex] 400 + \frac{x}{2} - x = 360 [/tex]
Subtract 400 from each side
[tex] 400 + \frac{x}{2} - x - 400 = 360 - 400 [/tex]
[tex] \frac{x}{2} - x = -40 [/tex]
[tex] \frac{x - 2x}{2} = -40 [/tex]
[tex] \frac{-x}{2} = -40 [/tex]
Multiply both sides by 2
[tex] \frac{-x}{2} \times 2 = -40 \times 2 [/tex]
[tex] -x = -80 [/tex]
Divide both sides by -1
[tex] \frac{-x}{-1} = \frac{-80}{-1} [/tex]
[tex] x = 80 [/tex]
describe this number line and the numbers and fractions shown.
Answer:
Every real number other than zero is either positive or negative. The non-negative whole numbers are referred to as natural numbers (i.e., 0, 1, 2, 3...), while the positive and negative whole numbers (together with zero) are referred to as integers. (Some definitions of the natural numbers exclude zero.)
Step-by-step explanation:
Answer:
Sample Response: The number line shows -2 through 2, divided into fourths, with zero in the middle. The numbers increase as you move right and decrease as you move left.
Plz mark brainlest
what are the x intercepts of h(x) in h(x) = -x(x-2)
Step-by-step explanation:
symbolab would be a great thing to use, itll tell you the steps and the answer
omg I am literally begging you plz help meeee I have no idea what to do and I need to get these correct so please help me!!!! (also plz show your work) don't answer if you don't know what your doing -_-
Answer:
2) cause both of them is the same thing
3) Side angle side
4) cpct (corresponding part of congruent triangles)
Your answer is Incorrect.
A sofa is on sale for 28% off. The sale price is $486.
What is the regular price?
Answer:chicken
Step-by-step explanation:
Put the chicken in the oven turn to 450 degrees let it sit for 4-5 hours
Help please help help
Answer:
7+x
Step-by-step explanation:
the prefix bi means two there for two variables just like in the word bicycle which means two wheels
An orange grove has 858 trees. There are 33 rows each with the same number of trees
Hon many trees are in each rows?
Answer:
26
Step-by-step explanation:
If each row has an equal number of trees, you would divide the total number of trees by the number of rows. 858/33 is 26
Answer:
26
Step-by-step explanation:
858 divided by 33 equals 26.
Identify the two factors that were multiplied together to form the array of tiles. Then identify the product of the two factors. Use the variable x in your expressions.
Answer:
[tex]Terms: 3\ and\ x + 2[/tex]
[tex]Product = 3x + 6[/tex]
Step-by-step explanation:
See attachment for complete question.
From the attachment, there are 3 columns and 3 rows
The 3 columns represent the first factor
To get the second factor, we have to analyze the 3 rows in the attachment.
Notice that the first row is bigger than the other two rows.
This big row will be represented with variable x
Notice that the boxes in second row are smaller than the first row and the + sign is written on each of the boxes.
This is represented with + 1
Also, notice that the boxes in third row are smaller than the first row and the + sign is written on each of the boxes.
This is also represented with + 1
Hence, the expression for the rows is x + 1 + 1 = x + 2
The product is then calculated as:
[tex]Product = 3 * (x + 2)[/tex]
[tex]Product = 3 * x + 3*2[/tex]
[tex]Product = 3x + 6[/tex]
Evaluate the expression when x = 9.2 and y = 3.4.
5xy
Answer:
5x9.2x3.4=156.4
Step-by-step explanation:
plug in 9.2 for x and 3.4 for y then multiply
Please I need help on this anyone
Answer:
98
Step-by-step explanation:
with the rule "corresponding angles are equal" it means that "d" and "f" are equal.
and since "f" is on the other side of 82, on a straight line, you can calculate "f".
82 and "f" would have to add up to 180' since they are on a straight line.
So you do 180 - 81 = f
and get 98.
and since "f = d"
d = 98 degrees
