Because of the test she did not take, Brandee scored a 9.75% lower average than her average score once her teacher allowed her to take the test again.
The average obtained once Brandee's teacher allowed him to present the missing test is much more accurate regarding Brandee's ability, this can be identified since it went from an average of 85.14% with 7 scores, to one of 84.25% with 8 scores, different from the average of 74.5% obtained thanks to that score of 0.
BRANDEE'S AVERAGE CALCULATION.
In the exercise, you can see Brandee's scores are: 80%, 92%, 91%, 75%, 89%, 84%, 0%, and 85%, if you calculate the average in that case:
First Brandee's average = (80 + 92 + 91 + 75 + 89 + 84 + 0 + 85) / 8First Brandee's average = 74.5But when Ms. Juarez allowed her to make up the missed test, in which she got 78%, The average increased too much:
Second Brandee's average = (80 + 92 + 91 + 75 + 89 + 84 + 78 + 85) / 8Second Brandee's average = 84.25As can be identified, most of Brandee's scores are above 80%, therefore, it is considered more accurate that her average is above this value, that is, it is an average that would represent much better the ability of Brandee.
You can see another exercise about average in the next link: https://brainly.com/question/20763190?referrer=searchResults
Can someone help (Geometry)
Answer:
∠DAC is 35°
Step-by-step explanation:
Given:
Measure of ∠DAB = 64°
Measure of ∠CAB = 29°
Solution:
∠DAB shows the value of the overall angle.
∠CAB shows the value for almost half of the angle.
∠DAB - ∠CAB = ∠DAC
64° - 29° = ?
∴ 64° - 29° = 35°
Hence, the value of ∠DAC is 35°
Select two ratios that are equivalent to 27: 9.
Choose 2 answers:
Answer:
1. 9:3
2. 3:1
Step-by-step explanation:
Hope it really helps you
Alix is 6 inches shorter thelan Ben. Alix is p inches tall. Write an expression to show how tall Ben is
Answer:
p+6
Step-by-step explanation:
are All integers are real numbers.
Answer:
no
Step-by-step explanation:
all integers are not real numbers.integers are negative and positive numbers. but real numbers don't include negative numbers.
If f(x)=3x-2 and g(x)=2x+1, find (f-g)(x)
A. 5x-3
B. 5x-1
C. X-3
D. 3-x
I need step by step explanation please
Answer:
B
Step-by-step explanation:
3x - 2 + 2x + 1
5x - 1
Please Help Please !!!!!!!
Answer:
I wish I could but I think its c
the perimeter of a rectangle if the width is w centimeters and the length is 3 cm more than twice the width
Which equation matches the line shown on the graph below?
Malachy rolls a fair dice 168 times.
How many times would Malachy
expect to roll an even number?
Step-by-step explanation:
no of even numbers=84
84/168
1/2
plsss mark brainliesttt
Find the distance between the pair of points. E(9,-4) F(-3,5)
Answer:
5
Step-by-step explanation:
√
(
−
3
−
9
)
2
+
(
5
−
−
4
)
2
=
√
(
−
12
)
2
+
9
2
=
√
144
+
81
=
√
225
= 15
Distance between points (9, -4) and (-3, 5) is 15
select the correct answer
1.caul will be the measure of one of the legs of a right triangle, if its hypotenuse is 10 cm and leg b is 6 cm, what will be the measure of leg a?
a) 8 cm
b) 5 cm
c) 4 cm
d) 12 cm
please
Answer:
answer us a) 8cm
Step-by-step explanation:
a^2 + 6^2 = 10^ 2
a^2 + 36 = 100
subtract 36 from 100
a^2 = 64
square root of 64 is 8
What is the coefficients and Constants for 5x-10
Answer:
coefficient
5
constant
-10
Step-by-step explanation:
5x-10
The coefficient is the number in front of the variable
5
The constant is the number alone
-10
2) How many cups are in two gallons?
Reference: 1 gallon = 4 quarts; 1 quart = 2 pints; 1 pint = 2 cups
Answer:
I think 32 cups in 2 gallons
Needing some help for my online class thanks
Answer:
[tex]y=1/2x+2[/tex]
Step-by-step explanation:
Know that: [tex]y=mx+b[/tex]
Starting for (0,0) count how many times you go up to the marked line (which is 2)
[tex]y=1/2x+2[/tex]
The [+] 2 is where you would start off at on the graph, with 1/2 being the slope go up one and over two.
solve this equation by using the look inside method to rewrite the problem
-81 = 3(5 - 4r)
if BC=2x-3 and AC=2x+10, find the length of AB
Answer:
ac
Step-by-step explanation:
xcsddddssss
thx for School Practice & Problem Solving
Assignment is past due (OS/
1.2.PS.17
Question Help
n
Challenge you are given the numbers, 39+n, 3 vn+144. Find the smallest value of n so that
all of the numbers in the set are natural numbers.
The smallest value of n that makes all of the numbers in set natural numbers is
를
va
Enter your answer in the answer box and then click Check Answer.
All parts showing
Clear All
CE
9514 1404 393
Answer:
n = 25
Step-by-step explanation:
The smallest perfect square larger than 144 = 12² is 169 = 13². As it happens, the difference of these squares is 25, a number divisible by 5.
So n=25 will make all of the expressions have values that are natural numbers.
_____
n = 0 would make all of them integers, but 0/5 = 0 is not a natural number.
Referring to the figure, does the triangle shown have
rotational symmetry?
a. yes
b. no
Referring to the figure, does the triangle shown have
rotational symmetry?
a. yes
b. no
Trevor has 40 contacts in his phone. Six are coworkers, 8 are
family members, and 26 are friends. If Trevor accidentally
calls a random contact, what is the probability he will call a
friend?
Answer:
0.65
Step-by-step explanation:
There are 26 friends on his phone.
There's a total of 40 contacts.
P(Friend) = 26/40
P(Friend) = .65
Please help! I’ll give brainliest to whoever answers also! Thank you!
Answer:
450 football
liked 625
didnt like 175
sorry if i didnt explain it right didnt understand how the stated the quetion
What are 3 fun facts about Brazil in your own words? Answer ASAP
Due today
Answer:
Brazil is the only country in South America that speaks Portuguese
The name Brazil comes from a tree named brazilwood
Brazil is the largest country in South America
lmk if incorrect
If f(x) = 3x +5/x what is f(a+2)?
Which of the below measures of central tendency is/are always unique ?
Answer:
A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data
For the function f(x) = -x^3 + 2x^2 + x - 2
a. Show that (x - 1) is a factor of f(x).
b. Find other factors.
c. Sketch the graph of f(x) = -x^3 + 2x^2 x - 2
Answer:
Step-by-step explanation:
a)
[tex]f(1)=-1^3+2*1^2+1-2=-1+2+1-2=0\\\\[/tex]
b)
Rationnel roots are divisor of -2: -1,1,-2,2
[tex]f(-1)=-(-1)^3+2*(-1)^2+(-1)-2=1+2-1-2=0\\\\\begin{array}{c|cccc}&x^3&x^2&x&1\\---&---&---&---&---\\&-1&2&1&-2\\x=1&&-1&1&2\\&-1&1&2&0\\\\x=-1&&1&-2\\&-1&2&0\\---&---&---&---&---\\\end {array}\\\\\\f(x)=-x^3+2x^2+x-2=(x-1)(x+1)(-x+2)\\\\[/tex]
c) see picture
Luis buys 0.56 pound of power pasta. Mariana buys 0.27 pound of power pasta. How much do they buy in all?
Add the two amounts together:
0.56 + 0.27 = 0.83 pounds total
Luis buys 0.56 pound of power pasta. Mariana buys 0.27 pound of power pasta. How much do they buy in all?
Solution:First, understand the problem.
Luis buys 0.56 pounds of power pasta.
Mariana buys 0.27 pound of power pasta.
Then, add the bus of Luis and Mariana.
Luis buys + Mariana buys = N0.56 + 0.27 = NN = 0.83Answer:Therefore, 0.83 buy in all.What is the fraction in simplest form?
14/16
79
28/32
78
7/16
Answer:
7/8
Step-by-step explanation:
Divide the top and bottom by 2.
14 / 2 = 7
16 / 2 = 8
7/8
Use the number line below, where RS = 4y + 2, ST = 3y + 7, and RT = 44.
a. What is the value of y?
b. Find RS and ST.
Answer:
Y = 5
Step-by-step explanation:
RT = RS + ST
44 = 4y + 2 + 3y + 7
44 -2 -7 = 7y
35 = 7y
y = 5
5. The graph shows the relationship between the number of cups of flour and the propos
number of cups of sugar in Lin's favorite brownie recipe.
3
cups of flour
1
.
1 2 3 4 5
cups of sugar
The table shows the amounts of flour and sugar needed for Noah's favorite brownie
recipe.
Answer:
what are you confused on??
Josefina's check at Sun Bistro is $26.70. In order to leave a 24% tip, how much should she pay? Round to the nearest cent.
Answer:
33.11 hope this helps
Step-by-step explanation:
she needs to pay $33.108 In order to leave a 24 percent tip.
What is ratio?The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.
Given, Josefina's check at Sun Bistro is $26.70. she wants to leave a 24% tip
Bill of josefina = 26.70
Bill after 24% tip = 26.70 * (1 + 24%)
Bill after 24% tip = 26.70 * 1.24
Bill after 24% tip = 33.108
Therefore, In order to leave a 24% tip she needs to pay $33.108.
Learn more about ratios here:
https://brainly.com/question/13419413
#SPJ2
Evaluate x + 2.7 for x= -1.5.
The value of the expression is
[tex]\text{x}=-1,5\\\\\text{x}+2,7=-1,5+2,7=2,7-1,5=\boxed{1,2}[/tex]
