Answers
Hey There.
Hope your well.
2(−3x)(−4x+x−7)
=(2(−3x))(−4x+x+−7)
=(2(−3x))(−4x)+(2(−3x))(x)+(2(−3x))(−7)
=24x^2−6x^2+42x
=18x^2+42x
Hope this helps,
Azumayay
Related Questions
Researchers in education are performing a study to see if listening to soothing music while taking a standardized math test increases the mean test score. The hypotheses are H 0 : mu=79 versus H a : mu>79 , and the p-value for the hypothesis test was 0.035.
At the 5 % significance level , what should the researchers conclude?
1. There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.
2. There is sufficient evidence to conclude that listening to soothing sounds decreases the mean test score.
3. There is insufficient evidence to conclude that listening to soothing sounds decreases the mean test score.
4. none of the above
Answers
Answer:
1. There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.
Step-by-step explanation:
A p - value less than 0.05 means that the test hypothesis is false or rejected.
In this question the test hypothesis is H 0 : mu=79 which is false as p-value is 0.035.
Whenever the p- value is less than the significance level H0 is rejected.
Hence the null hypothesis is rejected.
Therefore only choice 1 is correct.
There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.
There is sufficient evidence to support the claim.
need help please and thank you not a quiz just need help pls
Answers
Answer:
its E BECAUSE THEY BOTH EQUAL 175
Answer:
the answer is only C and E everything else is wrong
Step-by-step explanation:
Let me know if I'm right
Good Luck!
Of the recent customers at Burger Haven, 2 wanted cheese on their burgers and 14 did not. What is the experimental probability that the next customer will want cheese on his or her burger?
Answers
Answer: 1/8
Step-by-step explanation:
In the equation y = -x + 7 what is the value of m
Answers
y=mx+b
m=-1
I am adding more text to be able to submit this
Jonah and Graham are working together. Jonah claims that (x+y)^2 = x^2+y^2. Graham is sure Jonah is wrong, but he cannot figure out how to show it. a.) Help Graham find as many ways as poissible to convince Jonah that he is incorrect. How can he rewrite (x+y)^2 correctly?
Answers
Answer:
Here is what I got hope it helps!!!!!!!
Step-by-step explanation:
Equivalent expressions are expressions with the same value.
The proper way to rewrite the equation is: [tex]\mathbf{(x + y)^2 = x^2 + 2xy + y^2 }[/tex]
Jonah's equation is given as:
[tex]\mathbf{(x + y)^2 = x^2 + y^2}[/tex]
To convince Jonah that Jonah's equation is wrong, Graham can do any of the following
Assume values for x and yExpand the equationAssume value for x and y
Let x = 2 and y = 4
[tex]\mathbf{(2 + 4)^2 = 2^2 + 4^2}[/tex]
[tex]\mathbf{36 = 20}[/tex]
The above equation is false.
So, it means that: [tex]\mathbf{(x + y)^2 \ne x^2 + y^2}[/tex]
Expand the equation
We have:
[tex]\mathbf{(x + y)^2 = x^2 + y^2}[/tex]
Open the bracket
[tex]\mathbf{x^2 + 2xy + y^2 = x^2 + y^2}[/tex]
Cancel out common terms
[tex]\mathbf{2xy = 0}[/tex]
The above equation is false.
So, it means that: [tex]\mathbf{(x + y)^2 \ne x^2 + y^2}[/tex]
The proper way to rewrite the equation is:
[tex]\mathbf{(x + y)^2 = x^2 + 2xy + y^2 }[/tex]
Read more about equivalent expressions at:
https://brainly.com/question/21213498
A bakery buys a large bag of sugar that has 34 cups. They use 10 cups to make some cookies. They use the rest of the bag to make 144 giant muffins. Their customers want to know how much sugar is in each muffin.
Answers
Answer:
there would be 1 ÷ 6 sugar in each month
Step-by-step explanation:
The computation of the customers that want to know the sugar in each muffin is shown below
Here we assume the sugar in each muffin be x
Now there is 30 cups and 10 cups should be used for making some cookies
And, the rest would be use for making 144 gaint muffins
So, the equation that should be used is
10 + 144x = 34
144x = 24
x = 1 ÷ 6
So there would be 1 ÷ 6 sugar in each month
⚠️⚠️⚠️help⚠️⚠️⚠️⚠️⚠️
Answers
The point slope form is y=mx+b
Where m is the slope and b is the y intercept
37 POINTSSS!!!!! Plzzz help
Write a quadratic function whose graph has a vertex of (3, 2) and passes through the point (4,7).
Answers
Answer:
y = 5(x -3)2* +2
Step-by-step explanation:
Trust me bro I did it before
answer ASAPPPPPPPPPP
Answers
Answer:
Step-by-step explanation:
-5(z + 1) = -2z + 10 Remove the brackets
-5z - 5 = - 2z + 10 Subtract 10 from both sides
- 10 - 10
-5z - 15 = -2z Add 5z to both sides
+5z +5z
-15 = 3z Divide by 3
z = - 5
If each interior angle of a regular polygon measures 168º, how many sides does the polygon have?
Answers
Answer:
30 sides
Step-by-step explanation:
In the diagram, x is a negative number. and it is closer to zero than y.y is a positive number. which expression must be negative
Answers
Answer:
you already click the answer
Step-by-step explanation:
6.
A. [tex]-\frac{1}{5}[/tex]
B. [tex]\frac{x1}{5}[/tex]
C. –5
D. 5
Answers
Answer:
[tex]\frac{1}{5}[/tex]
Step-by-step explanation:[tex]d=-1\frac{1}{5}-(-2) =-1\frac{1}{5}+2=\frac{1}{5}[/tex]
multiply 8 and 4 then add 7 to the product
please help i will give brainliest answer
Answers
Answer:
I don't know sorryyyyy plz give the other brain
What is the area of this polygon?
40 cm2
18 cm2
16 cm2
24 cm2
Answers
Answer:
40 cm 2 yes to Chou god cm,6 ja
Answer:
40 cm2Step-by-step explanation:
I took the test
Lisa, Juan and isaac equally shared 1/2 of a cake which fraction of the whole cake did each of them recieve
Answers
Answer:
Each will receive [tex]\frac{1}{6}th[/tex] of the cake.
Step-by-step explanation:
Let the amount of cake = c
Lisa, Juan and Isaac are the persons who are sharing half of a cake equally.
Number of persons = 3
Part of the cake shared = [tex]\frac{c}{2}[/tex]
Fraction of the cake shared by each = [tex]\frac{\text{Amount of cake shared}}{\text{Number of persons who shared}}[/tex]
= [tex]\frac{\frac{1}{2}c}{3}[/tex]
= [tex]\frac{1}{6}c[/tex]
Therefore, fraction of total cake shared by each member will be [tex]\frac{1}{6}[/tex] of the total amount of cake.
It’s not a or c help
Answers
Answer:
D if i'm wrong i'm so sorry
Step-by-step explanation:
Why is it important to fix soil that is lacking in these nutrients?
Answers
Answer:
What nutrients-?
Kimberly is a hostess at a restaurant a large party had a bill for 781.50 the restaurant adds a tip of 18% to the bill. Kimberly receives 8% of the tip and each server receives 1/5 of the remaining tip how much does each Sever earn
Answers
Answer:
$28.13
Step-by-step explanation:
B)
Groups of 20 or more receive a 20% discount at the LA Zoo. Tickets range from $10 to $15, depending on age. What is the range in ticket price after the 20% discount?
Answers
Answer: $8 to $12
Step-by-step explanation:
The ticket prices range from $10 to $15 so the new range will see these two figures reduced by 20%.
$10 after the discount:
= 10 * (1 - 20%)
= $8
$15 after the discount:
= 15 * ( 1 - 20%)
= $12
Discounted ticket range is:
= $8 to $12
Pilate tagged 15 seals in the Columbia River. One month later, she spotted 6 of the tagged seals out of 20 seals spotted. What is an estimate for the size of the seal population in the Columbia River?
A.4 seals
B.25 seals
C.30 seals
D.50 seals
Answers
If the probability of rain today is 15%, what is the probability that it will not
rain today?
A. 85%
B. 50%
C. 15%
ОО
D. 100%
HELP PLEASE!
Answers
The probability that will not rain today is: 85%
100% - 15% = 85%
The correct answer is A
Cassandra bought a tablecloth. The area of the tablecloth is 120 ft2. The width of the tablecloth is 10 feet. How long is it?
Answers
the answer is 12 hope this helps!!
Lydia rode the school bus for a total of 29 miles each day. How many miles did she ride the school bus over 180 days?
Answers
Answer:
5220 miles
Step-by-step explanation:
29x180
Answer:
5220 miles
Step-by-step explanation:
Multiply the number of days she rode by how many miles she rode each day
29*180 = 5220
Help me plz ASAP
A.2
B.1/2
C.2/3
D.3/2
Answers
A
Step-by-step explanation:
First and foremost, we can rule out B and C because they are less than one and would make the hexagon smaller instead of bigger. Now, when we measure the units, we see that it goes up by 2 squares on the graph. So, by process of elimination and measurement, we get the answer of A.
x = 4 and y = 3.
3x 2 + 5y
A. 27
B. 31
C. 63
D. 159
Answers
Answer:
39
Step-by-step explanation:
I did the math
Maya's new puppy weighs 3 5/8 pounds. He will gain an average of 3/5 pound each week until he reaches adult weight. Which equation can be used to predict his total weight, t , after w weeks?
Answers
Answer:
3 5/8 + 3/5w = t
Step-by-step explanation:
The puppy is gaining each week so, 3/5w
you want to include the original weight so, +3 5/8
equals total weight, = t
is 9cm > 4cm correct
Answers
Answer:
nooooooooooooooooooooo
Pls help on question 9
Answers
Please help fast how to find missing numbers
Answers
Answer:
Step-by-step explanation:
A fire marshal is determining the maximum occupancy of a school. The first step in doing so is to find the area of the building's floor. What is the area? 1,500 square yards 1,800 square yards 2,000 square yards 2,340 square yards
Answers
Answer:
a) 1,500 square yards
Step-by-step explanation:
you would do 30 times 20 which is 900. then you would do 50 times 9 which is 450. you would have to do that twice. then you would add 900 + 450 + 450 = 1,500
rate and like my answer plz.
hope this helped.
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Answer:
A 1500 Square yards
Step-by-step explanation:
right on edge