Answer:
$480
Step-by-step explanation:
40 × 12 = 480
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?
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
Sara bought shoes for $39.95 and x pairs of socks for $1.99 each. Which expression shows the total money spent?
Answer:
$39.95 + $1.99x
Step-by-step explanation:
Cost of shoes = $39.95
Cost per pair of socks = $1.99
Number of socks pairs purchased = x
Total amout spent = (cost of shoes + cost of x pairs of socks)
Cost of x pairs of socks = $1.99 * x = $1.99x
Total amount spent = $39.95 + $1.99x
Answer:
$39.95 + $1.99x
Step-by-step explanation:
In triangle ABC , Sin angle B=14/17 . The hypotenuse of triangle ABC
A. 14
B17
C. 2sqrt(485 )
D. 0.824
Answer: A
Step-by-step explanation:
Platooo
40 points plus brainliest if you don't leave a link!
Answer:
b is 6
c is 8
Step-by-step explanation:
i was close i have 0.8
and 0.7
Answer:
12.5 sq units for the first answer is correct.
The second answer is 6.
The third answer is 8.
Step-by-step explanation:
The formula of a triangle is bh/2. Plug in the base and height for b and h then multiply.
1st box:
(5)(5)/2
25/2
12.5 Correct
2nd box:
(4)(3)/2
12/2
6 Final Answer
3rd box:
(4)(4)/2
16/2
8 Final Answer
⚠️⚠️⚠️help⚠️⚠️⚠️⚠️⚠️
6.
A. [tex]-\frac{1}{5}[/tex]
B. [tex]\frac{x1}{5}[/tex]
C. –5
D. 5
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]
The drop that rider's experience on Dr. Doom's Free Fall can be modeled by the quadratic function LaTeX: h\left(t\right)=-9.8t^2-5t+39h ( t ) = − 9.8 t 2 − 5 t + 39 where h is height in meters and t in time in seconds. What is the starting height of the riders?
Answer:
The starting height of the raiders is 39 meters.
Step-by-step explanation:
Physically speaking, a free fall motion is an uniformly accelerated motion due to gravity. Mathematically, speaking the equation of motion for the height of an object under free fall is a second order polynomial (quadratic function).
Let [tex]h(t) = -9.8\cdot t^{2}-5\cdot t + 39[/tex] be the height of the riders, in meters, the starting height is the height evaluated at [tex]t = 0\,s.[/tex] Hence, we proceed to the determined the required data by direct evaluation:
[tex]h(0) = -9.8\cdot (0)^{2}-5\cdot (0) +39[/tex]
[tex]h(0) = 39[/tex]
The starting height of the raiders is 39 meters above the ground.
6 cm
4 cm
9.5 cm
4 cm
6.5 cm
I need help I have to find the perimeter for this
Answer:
30 cm is the perimeter.
Step-by-step explanation:
To find the perimeter of this figure, add up all the lengths of the sides:
6 cm
4 cm
9.5 cm
4 cm
6.5 cm
-----------
30 cm is the perimeter.
Answer:
The perimeter will be 30 cm
Step-by-step explanation:
The perimeter is the distance around the composite figure.
The perimeter= 9.5+6.5+4+4+6=30 cm
perimeter=30
Kylie is selling gift bags and wrapping paper for a school fundraiser. Mrs. Jones orders 4 gift bags and 3 rolls of wrapping paper for $47.50. Mrs. Kim orders 7 gift bags and 1 roll of wrapping paper for $47.00. Mr. Burnett wants to order 3 gift bags and 5 rolls of wrapping paper. How much is Mr. Burnett’s order?
b = Gift Bag
p = Wrapping Paper
Which system represents the problem situation?
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
Giving brainlist to whoever answers
Answer:
9/24
Step-by-step explanation:
Which of the given number are irrational number
Answer:
The famous irrational numbers consist of Pi, Euler's number, Golden ratio. Many square roots and cube roots numbers are also irrational, but not all of them. For example, √3 is an irrational number but √4 is a rational number. Because 4 is a perfect square, such as 4 = 2 x 2 and √4 = 2, which is a rational number.
Step-by-step explanation:
examples of irrational numbers is 0.2, 0.5 and 0.9
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!
The probability that will not rain today is: 85%
100% - 15% = 85%
The correct answer is A
A larger number is double the sum of 3 and a smaller number. The larger number is 2 less than 3 times the smaller number. If y represents the larger number and x represents the smaller number, which equations model the situation? Check all that apply.
Answer:
y = 3x - 2
3x - y = 2
y = 2(x + 3)
Step-by-step explanation:
y = the larger number
x = the smaller number
A larger number is double the sum of 3 and a smaller number
y = 2(x + 3)
y = 6 + 2x
The larger number is 2 less than 3 times the smaller number.
y = 3x - 2
Make -2 the subject
y - 3x = -2
Make 2 the subject
y = 3x - 2
y - 3x = -2
(y - 3x) * -1 = -2 * -1
-y + 3x = 2
3x - y = 2
The answers:
y = 3x - 2
3x - y = 2
y = 2(x + 3)
Can you do 0.123-0.3 PLEASE TELL ME THE ANSWER!!PLS
Answer:
hi
Step-by-step explanation:
it is -0,177
hope it helps
have a nice day
The value of expression after subtraction is,
⇒ - 0.177
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Expression is,
⇒ 0.123 - 0.3
Now, We can simplify the expression by subtracting as;
⇒ 0.123 - 0.3
⇒ - 0.177
Thus, The value of expression after subtraction is,
⇒ - 0.177
Learn more about the subtraction visit:
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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?
Answer: 1/8
Step-by-step explanation:
I will make brainliest
Answer:
81.64
Step-by-step explanation:
formula for volume of a cylinder is pi times radius squared times height
the radius here is 2, and the height is 6.5
plug the numbers into the formula and you get pi(2^2)(6.5), which is 81.64
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
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.
Which equation represents a function?
Answer:
C represents a function
Find the area enclosed by the x-axis and the curve x = 4 + et, y = t − t2.
Find where the curve intersects the x-axis; this happens when y = 0:
y = t - t ² = 0 → t (1 - t ) = 0 → t = 0, t = 1
Then the area of the bounded region is
[tex]\displaystyle\int_0^1 y(t) x'(t)\,\mathrm dt=\int_0^1 (t-t^2)e^t\,\mathrm dt=\boxed{3-e}[/tex]
(you can compute the integral by parts)
Sophie runs 4 1/2 miles on Saturday. Aubrey jogs 2/3 of that distance. So what is the distance Aubrey jogs in miles?
Answer:
3
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
Answer:
you already click the answer
Step-by-step explanation:
please help. im not good with probability
Why is it important to fix soil that is lacking in these nutrients?
Answer:
What nutrients-?
If each interior angle of a regular polygon measures 168º, how many sides does the polygon have?
Answer:
30 sides
Step-by-step explanation:
The mean age of 5 people in a room is 39 years.
A person enters the room.
The mean age is now 40.
What is the age of the person who entered the room?
Answer: Answer:the person entering the room is 10 years oldStep-by-step explanation:x / 5 = 40x = 40 * 5x = 200so the total of all the ages of 5 people
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
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
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?
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
need help please and thank you not a quiz just need help pls
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!
An antique dealer bought 5 different antiques and had them appraised. What were the appraisals on each of the 5 antiques?