14. Salena says 38 ÷ 5 = 7. How do you respond to Salena? Explain
how to use patterns with multiplication and division facts to explain
your thinking.
Answer:
Salena is incorrect. I would advise her to try reversing the question to check her work. Please see below to check it.
Step-by-step explanation:
38 ÷ 5 = 7
Try reversing to check.
7*5=35
38 divided by 5 does not equal to 7.
Hope this helps!
Please mark as brainliest if correct!
10 POINTS FOR THE ANSWER
Explain in your own words using appropriate vocabulary on how you determine what side is opposite, adjacent and the hypotenuse.
It should be noted that the hypotenuse is the longest side in the triangle. The opposite is the side facing the angle and the adjacent is the last side.
How to illustrate the information?The hypotenuse is the longest side of a right triangle. An "opposite" side is one that is across from a given angle, while a "adjacent" side is one that is close to a given angle.
According on the angle requested, adjacent and opposing sides can differ. The side that is opposite to the requested angle is the opposite side, and the side that is immediately adjacent to the requested angle is the adjacent side.
In conclusion, the opposite is the side facing the angle and the adjacent is the last side.
Learn more about hypothenuse on:
https://brainly.com/question/2217700
#SPJ1
i need help (30 pt) + brainliest
Answer:
x + y
Step-by-step explanation:
x + y = - [tex]\frac{11}{8}[/tex] + (- [tex]\frac{11}{4}[/tex]) = - [tex]\frac{11}{8}[/tex] - [tex]\frac{11}{4}[/tex] = - [tex]\frac{11}{8}[/tex] - [tex]\frac{22}{8}[/tex] = - [tex]\frac{33}{8}[/tex]
x - y = - [tex]\frac{11}{8}[/tex] - (- [tex]\frac{11}{4}[/tex] ) = - [tex]\frac{11}{8}[/tex] + [tex]\frac{11}{4}[/tex] = - [tex]\frac{11}{8}[/tex] + [tex]\frac{22}{8}[/tex] = [tex]\frac{11}{8}[/tex]
then
x + y < 0 , that is x + y is negative
How to memorize multiplication tables in just one day?
Answer:
Skip counting
Step-by-step explanation:
Skip counting is when you count at intervals of any number you like. If I were to skip count by seven, I would count 7, 14, 21, and so on. You can easily accomplish single-digit multiplication with this method. For example, suppose your teacher asks you to multiply 4 x 7 =. Simply count sevens four times, 7, 14, 21, and 28. 4 x 7 = 28 is the answer.
Go over the skip-counting list until you get to the halfway mark (3, 6, 9, 12, 15, and 18). Allow yourself to speak it out loud while pointing to the answers one by one with a finger or a pen. This engages many senses at the same time.
Repeat the list from memory after they have gone over it a few times.
The mind is similar to muscles in that it requires exercise to grow stronger.
Memorize this list in both ascending and descending order.
Go through the remaining items on the list: 21, 24, 27, 30, 33, 36.
Finally, go over the entire list of answers. Repeat the list UP AND DOWN until it seems natural and effortless.
Step-by-step explanation:
First write it down by looking at a picture.
Then try writing it down without looking at a picture
Keep doing this.
Also study for 10 mins and then ask someone else to test you
Write an equation for a line that passes through the points (1, 2) and (11, 22). The form is your choice
Its too confusing pls help!
hello! please read the instructions in the picture :)))
made just for you <3
for the given functions f and g,find the composition please help
Answer:
[tex](f \cdot g)(x)=18x^3+15x^2[/tex]
Step-by-step explanation:
Given functions:
[tex]\begin{cases}f(x)=6x^2+5x \\ g(x)=3x\end{cases}[/tex]
Function composition is an operation that takes two functions and produces a third function.
The composite function (f · g)(x) means to multiply function f(x) by function g(x):
[tex]\begin{aligned}\implies(f \cdot g)(x) & = f(x) \cdot g(x)\\& = (6x^2+5x)(3x)\\& = 6x^2 \cdot 3x+5x\cdot 3x\\& = 18x^3+15x^2\end{aligned}[/tex]
Learn more about composite functions here:
https://brainly.com/question/24538829
https://brainly.com/question/27966754
Which transformation shows a reflection of δdef? 2 triangles have identical side lengths and angle measures. the second triangle has been rotated. 3 triangles have identical side lengths and angle measures. the second triangle is reflected. 2 triangles have identical side lengths and angle measures. the second triangle is slightly lower and to the right of the first triangle.
The transformation in reflection is that triangle may have identical aspect lengths and perspective measure.
The reflection concept must be nicely understood earlier than solving this problem.If a determine is reflected then it will have same lengths and same measures but the picture may be inverted.If we can see the meditated photo of an equilateral triangle then the image could be congruent to the object.If we are able to see the pondered image of a rectangular then it will likely be congruent to the figure.right here, the ideal choice is triangle may have identical facet lengths and perspective measure.To learn more about reflection visit the link:
https://brainly.com/question/15487308
#SPJ4
Answer:
b
Step-by-step explanation:
A small plane flies for 3 hours to an airport 450 kilometers away against a strong headwind. the plane then returns to its starting location flying with the wind, taking 2 hours. the wind speed remains constant for the round-trip flight.
The speed of the plane and wind in km/hr is 187.5 and 37.5 respectively.
What is a linear equation ?A linear equation has highest degree of 1.
According to the given question a small plane flies for 3 hours to an airport 450 kilo meters away against a strong headwind. the plane then returns to its starting location flying with the wind, taking 2 hours.
Form these we can form two linear equations in two variables.
Assuming speed of the plane to be x km/hr and speed of wind to be y km/hr.
We know Distance = speed × time.
3( x - y) = 450. and 2( x + y) = 450.
3x - 3y = 450...(i) and 2x + 2y = 450...(ii)
multiplying eqn (i) by 2 and eqn (ii) by 3 and solving we get
x = 187.5 km/hr and y = 37.5 km/hr.
learn more about linear equation in two variable here :
https://brainly.com/question/24085666
#SPJ4
Find the LCM of 34 ( use prime factorisation method
The LCM of 34 using prime factorisation method is 2 and 17
write the algebric expression two less than four times a number
PLEASE SHOW WORK
The expression two less than four times a number is represented as 4x - 2
Algebraic expressionsAn algebraic expression is an expression which is made up of variables and constants, along with algebraic operations such as the addition, subtraction, division and multiplication.
According to the question, we are to transform two less than four times a number into expression
Let the unknown number be x such that
four times a number = 4x
two less than four times a number = 4x - 2
Hence the expression two less than four times a number is represented as 4x - 2
Learn more on algebraic operation here; https://brainly.com/question/723406
#SPJ1
What’s the next number in the pattern, and what is the formula to find the next number in the pattern?
7, 28, 63, 112..
Answer:
7, 28, 63, 112, 175, 252, 343, ...
Step-by-step explanation:
Step-by-step explanation:
7, 28, 63, 112, 175
7*1, 7*4, 7*9, 7*16, 7*25, ...
7*1², 7*2², 7*3^2, 7*4², 7*5²
Hence, 7n², n=1, 2, 3, 4, ...
7*6²=
7*6*6=
252
7*7²=
7*7*7=
343
Thus,
7, 28, 63, 112, 175, 252, 343, ...
1/2x+1/2x= x+1
Solution:
(The answer can be no solution and infinitely many solutions)
Answer:
No solution
Step-by-step explanation:
On the left side we have one half x plus one half x which equals x. On the right side we have x + 1. So the equation becomes x = x + 1. Subtracting x from both sides we get 0 = 1, which is false. Therefore there is no solution to this problem.
let x1, x2 ..., x100 all be independent bernoulli variables, which take a value of 1 with probability 0.5
Using the normal approximation to the binomial, there is a 0.9713 = 97.13% probability that the sum of these variables is less than 60.
What is the missing information?This problem is incomplete, but researching it on a search engine, it asks the probability that the sum of these Bernoulli variables is of less than 60.
Normal Probability DistributionThe z-score of a measure X of a normally distributed variable with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex] is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The z-score measures how many standard deviations the measure is above or below the mean. Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.The binomial distribution is the probability of x successes on n trials, with p probability of a success on each trial. It can be approximated to the normal distribution with [tex]\mu = np, \sigma = \sqrt{np(1-p)}[/tex].The binomial distribution is a series of n Bernoulli trials with p probability of a success on each trial, hence the parameters for the binomial distribution are given as follows:
n = 100, p = 0.5.
The mean and the standard deviation are given by:
[tex]\mu = np = 100(0.5) = 50[/tex].[tex]\sigma = \sqrt{np(1-p)} = \sqrt{100(0.5)(0.5)} = 5[/tex]Using continuity correction, the probability that the sum is less than 60 is P(X < 59.5), which is the p-value of Z when X = 59.5, hence:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
Z = (59.5 - 50)/5
Z = 1.9
Z = 1.9 has a p-value of 0.9713.
Hence there is a 0.9713 = 97.13% probability that the sum of these variables is less than 60.
More can be learned about the normal distribution at https://brainly.com/question/24537145
#SPJ1
5x+6y=-48 in slope intercept form
Answer:
y=-5/6x-8
Step-by-step explanation:
Slope intercept form: y=mx+b
5x+6y=-48
6y=-5x-48
y=-5/6x-8
question which angles are a pair of alternate exterior angles? angle 3 and angle 6 angle 3 and angle 6 angle 4 and angle 6 angle 4 and angle 6 angle 2 and angle 8 angle 2 and angle 8 angle 1 and angle 5 angle 1 and angle 5
The pair of angles from the given options that are a pair of alternate exterior angles is:
C. ∠2 and ∠8
What are Alternate Exterior Angles?
Alternate exterior angles are pairs of exterior angles that lie alternate to each other along a transversal that cuts across two parallel lines.
Thus, in the image given, we have the following alternate exterior angles:
∠2 and ∠8
∠1 and ∠7
Therefore, the pair of angles from the given options that are a pair of alternate exterior angles is:
C. ∠2 and ∠8
the complete question is
Which angle are a pair of alternate exterior angles
A. Angle 4 and angle 6
B. Angle 3 and angle 6
C. Angle 2 and angle 8
D. Angle 1 and angle 5
Learn more about alternate exterior angles :
https://brainly.com/question/26111088
#SPJ4
luke measured a swimming pool and made a scale drawing. the scale he used was 7 centimeters : 3 meters. the pool is 105 centimeters long in the drawing. how long is the actual pool?
The actual length of the swimming pool be 15m if the scale used by Luke is 7cm : 3m.
Let the actual length of the pool be x m.
According to the given question.
Luke measured a swimming pool and made a scale drawing. The scale he used was 7 centimeters : 3 meters.
⇒ The scale is 7cm : 3m.
Also, the length of the pool in the drawing is 105cm.
Therefore, the actual length of the swimming pool is given by
7cm : 3m = 105cm : x (by proportion fromula)
⇒ 7x = 105
⇒ x = 15m
Hence, the actual length of the swimming pool be 15m if the scale used by Luke is 7cm : 3m.
Find out more information about scale here:
https://brainly.com/question/17403281
#SPJ4
write the ratio 9:4 in the form n:1
The ratio in the form of n:1 is 2.25:1.
what is ratio?When comparing two amounts of the same sort, ratio is utilised. For two numbers, a and b, the ratio formula is written as a: b or a/b. Two or more ratios are said to be in proportion if they are all equal.
A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same sort and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.
Given:
ratio 9:4
Now we have to write the ratio in the form of n:1
So, divide the ratio by 4
=9 /4 : 4/4
=9/4: 1
=2.25 :1
Hence, the ratio in the form of n:1 is 2.25:1.
Learn more about ratio here:
https://brainly.com/question/13419413
#SPJ2
What are the points of intersection between the graphs of the functions
f(x) = (x+3)(x − 1) and g(x) = (x + 1)(x − 3)
Step-by-step explanation:
THE POINT OF INTERSECTION IS WHERE F(x) = G(x)
[tex](x + 3)(x - 1) = (x + 1)(x - 3) \\ {x}^{2} + 2x - 3 = {x}^{2} - 2x - 3 \\ \\ {x}^{2} - {x}^{2} + 2x + 2x - 3 + 3 = 0 \\ 4x = 0 \\ \frac{4x}{4} = \frac{0}{4} \\ x = 0[/tex]
find the y coordinate by plugging in the value of c in any of the function.You will get thw same value
[tex]g(0) = (0 + 1)(0 - 3) \\ g(0) = 1( - 3) \\ g(0) = y = - 3[/tex]
The point of intersection is (0,-3)
At the Throw Factory, the assembly line produces 122 baseballs in a batch. The baseballs are packaged in boxes with 11 each. If 8 batches are made in one day, how many baseballs will be leftover at the end of it?
The baseballs produced in a day would fill 88 boxes and there would be 8 baseballs leftover.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
A variable can either be dependent or independent. A dependent variable depend on other variable while an independent variable does not depend on other variables.
The assembly line produces 122 baseballs in a batch, If 8 batches are made in one day hence:
Total baseballs produced = 8 batches * 122 balls per batch = 976 balls
Each box contain 11 baseballs each, hence:
number of boxes = 88 boxes and 8 baseballs remaining
The baseballs produced in a day would fill 88 boxes and there would be 8 baseballs leftover.
Find out more on equation at: https://brainly.com/question/13763238
#SPJ1
if a student received 13/15 on their math quiz, what percentage did the student get on that quiz? (round to the nearest whole percentage)
The student got 87% in the quiz.
Given,
Marks obtained by student = 13/15
percentage received = 13/15 × 100
= 86.6%
= 87%(nearest whole percent)
What is meant by percentage?A percentage is a figure or ratio stated as a fraction of 100 in mathematics. Although the abbreviations "pct.", "pct.", and occasionally "pc" are also used, the percent symbol, "%," is frequently used to indicate it. A % is a number without dimensions and without a measurement system.
To learn more about percentage from given link
https://brainly.com/question/24304697
#SPJ4
PLEASE HELP MY DEADLINE IS TMR AND IVE BEEN TRYING TO DO THIS ALL DAY. I’ve tried using my notes it doesn’t make sense please help me answer all of the questions. THANK YOU!
13. 9,000 feet
14. 4,500 feet
15. descended 4,500 feet because 9000-4500=4500
16. base camp is 1,000 feet in elevation
17. during 3-4 pm he was descending the fastest because the slope between those two points is the greatest.
18. No because the graph is not linear.
Use your calculator to work out
a) (1.8 × 10⁹) + (6.2 × 107)
b) (6.4 x 10-¹¹) - (5.3 × 10-¹2)
Give your answers in standard form.
Answer:
a) 1800000663.4
b) 0.0000000000587
Step-by-step explanation:
Answer:
(a) (1.8×10^9)=1800000000
(6.2×107)=663.4
So therfore,
(1.8×10^9)+(6.2×107)=1800000663
Note: "^" means exponential (power)
Step-by-step explanation:
(b) (6.4×10^-11)=0.000000000064
(5.3×10^-12)=0.0000000000053
Therefore ,
Answer= 0.0000000000587
Which equations show a line that is parallel to the line y = -5/4x + 1?
select all that apply
Which point belongs on the line y = 2x - 5?
(1,3)
(0.7)
(2,-1)
(3.-11)
Answer:
(2, - 1 )
Step-by-step explanation:
to determine which point belongs on the line, substitute the x- coordinate into the right side and if the value obtained is equal to the y- coordinate then it lies on the line.
(1, 3 ) : y = 2(1) - 5 = 2 - 5 = - 3 ≠ 3 ← not on line
(0, 7 ) : y = 2(0) - 5 = 0 - 5 = - 5 ≠ 7 ← not on line
(2, - 1 ) : y = 2(2) - 5 = 4 - 5 = - 1 ← lies on line
(3, - 11 ) : y = 2(3) - 5 = 6 - 5 = 1 ≠ - 11 ← not on line
How much is 12 out of 156 as a fraction in its simplest form?
Answer:
3/64
Step-by-step explanation:
12/156
DIvide both numbers by two
6/78
Divide both numbers by two
3/64
Answer: 1/13
Step-by-step explanation:
[tex]\displaystyle\\\frac{12}{156}=\\\\ \frac{3*4}{3*52}=\\\\ \frac{4}{52}=\\\\ \frac{4}{4*13}=\\\\ \frac{1}{13}[/tex]
Find a linear function that models the relationship between the two variables and describe the slope and intercept (For example, if P = 7.5s +80 gives weekly pay P, as a function of number of units sold s, then the slope of 7.5 is the pay per unit sold and the intercept of 80 is the amount of the employees base pay each week.)
Housing prices in a particular neighborhood increased at rate of $1,200 per year. If you bought a home in 1960 for $45,000, what would it be worth today? Let H be the price of the house and let t be the number of years since 1960 and find a formula for that relates the two, then use it to answer the question.
The linear function that models the relationship between the two variables is y = 1200x+ 45000
How to find a linear function that models the relationship between the two variables and describe the slope and intercept?The given parameters are
Rate = $1200 per year
Initial price in 1960 = $45000
In a linear function, we have
Slope, m = Rate
Y-intercept, c = Initial price
A linear equation is represented s
y = mx + c
So, we have
y = 1200x+ 45000
Hence, the linear function that models the relationship between the two variables is y = 1200x+ 45000
Read more about linear function ar
https://brainly.com/question/4025726
#SPJ1
Find the distance between -452 and 12.
Answer: 440
Step-by-step explanation: You add 12 to -452
I believe how you find the difference between two numbers is by adding their absolute value. The absolute value ignores the negative and positive values and is really just the distance of the number from 0.
So, with -452 and 12, the distance between them is 464 units
answer: 464
Im sorry if that was confusing!
Which of the following expressions is NOT equal to the others?
ab + ac
(b + c)a
a(b + c)
ab + c
The expression that is NOT equal to the others is ab + c
What are expressions?Expressions are mathematical statements that are represented by variables, coefficients and operators
How to determine which of the following expressions is NOT equal to the others?The expressions are given as
ab + ac
(b + c)a
a(b + c)
ab + c
Next, we evaluate the expressions as follows
So, we have
ab + ac = ab + ac
(b + c)a = ab + ac
a(b + c) = ab + ac
ab + c = ab + c
See that all but the last expression have a value of ab + ac
Hence, the expression that is NOT equal to the others is ab + c
Read more about expressions at
https://brainly.com/question/4344214
#SPJ1
drag each tile to the correct box. not all tiles will be used. one solution each is given for four quadratic equations. assuming that each quadratic equation has two solutions, what is the second solution for each equation? arrowright arrowright arrowright
for the equation is, x = -4 - 5i
The solution will be, x = -4 + 5i
for the equation is, x = 4 + 5i
The solution will be, x = 4 - 5i
for the equation is, x = 5 - 4i
The solution will be, x = 5 - 4i
Quadratic equation defind as:Any equation in algebra that can be written in proper format as where x stands for an unknown, where a, b, and c stand for known numbers, and where a 0
According to the given information:If (a + bi) is a complex number and a quadratic equation has one solution,
The second solution to the equation will be the conjugate of the first.
Consequently, the alternative solution will take the form of (a - bi).
for the equation is, x = -4 - 5i
The solution will be, x = -4 + 5i
for the equation is, x = 4 + 5i
The solution will be, x = 4 - 5i
for the equation is, x = 5 - 4i
The solution will be, x = 5 - 4i
To know more about quadratic equation visit:
https://brainly.com/question/17177510
#SPJ4
f(x)=-x-4 solve when f(x)=6
Answer: Pretty sure the answer is -10
Step-by-step explanation: If you replace f(x) with 6, you can figure out the answer more quicker.
6 = -x-4
10 = -x
x=-10
Answer:
2
Step-by-step explanation:
Since f(x) is 6, we can plug that into the equation:
6-4,
which gives us 2