Answer:
64.2 in
Step-by-step explanation:
From deltamath
Yeah
2.) What is another way to write 700,562? Select all the ways to write this number, A) (7 +100,000) + (5+ 1,000) + (6 +10) + (2 +1) B) seven hundred thousand, five hundred sixty-two C) 700,000 +500 + 60 + 2 D) 7 hundred thousands +5 hundreds +62 tens. E) 7 hundred thousands +5 thousands + 6 tens + 2 ones
Answer:
b,c
Step-by-step explanation:
b is written in the written form properly and is is extended using the right place values
ILL GIVE THE BRAINLIEST pls help me with this question EVERYTHING IS IN THE PICTURE PLS HELP DUE TODAY IF YOU PUT A WRONG ANSWER ILL REPORT YOU FASTER THAN ASSIGMENT IS DUE
Answer:
186.2 in^2
Step-by-step explanation:
7*9.5*2.8=186.2
7. What is the perimeter of a rectangle with a length of 20 inches and a width of
18 inches? *
Step-by-step explanation:
Perimeter=2length+2width
=2×20 + 2×18
40+36
=76inches
Answer: 76
Step-by-step explanation:
ome organisms can reproduce through a process called budding. Which of the following best describes this process? (CHOOSE ALL THAT APPLY)
Answer:
Corals, some sponges, some acoel flatworms, and echinoderm larvae.
Step-by-step explanation:
she finds a hotel that charges 84 euros per night, she thinks this will be about £100. Is she right?
Answer:
she is wrong
Step-by-step explanation:
Using the conversion rate
1 Euro equals =0.87 Pound sterling
84 euros = x
Cross multiply
1 * x = 0.87 * 84
x = 0.87 * 84
x = 73.08 pounds
Since 84 euros is not up to 100pounds,. Hence she is wrong
For the function f(x) = 1/4e^-x + e^x, prove that the arc length on any interval has the same value as the area under the curve.
Take an arbitrary interval [a, b], where a < b.
Compute the arc length L of y = f(x) over [a, b] :
[tex]L=\displaystyle\int_a^b\sqrt{1+\left(f'(x)\right)^2}\,\mathrm dx[/tex]
Now comptue the area A under the curve y = f(x) over [a, b] :
[tex]A=\displaystyle\int_a^bf(x)\,\mathrm dx[/tex]
We have
f (x) = 1/4 e ⁻ˣ + e ˣ → f ' (x) = -1/4 e ⁻ˣ + e ˣ
Then
√(1 + (f ' (x))²) = √(1 + (-1/4 e ⁻ˣ + e ˣ)²)
… = √(1 + 1/16 e ⁻²ˣ - 1/2 + e ²ˣ)
… = √(1/16 e ⁻²ˣ + 1/2 + e ²ˣ)
… = 1/4 √(e ⁻²ˣ + 8 + 16e ²ˣ)
… = 1/4 √((e ⁻ˣ + 4 e ˣ)²)
… = 1/4 (e ⁻ˣ + 4 e ˣ)
… = 1/4 e ⁻ˣ + e ˣ
… = f (x)
so both A = L for any choice of interval [a, b].
It is true that the arc length on any interval has the same value as the area under the curve.
How to prove the statementThe function is given as:
[tex]f(x) = \frac 14e^{-x} + e^x[/tex]
Differentiate the function
[tex]f'(x) = -\frac 14e^{-x} + e^x[/tex]
On any interval, the following must be true
[tex]f(x) =f'(x)[/tex]
and
[tex]f(x) = \sqrt{1 + (f'(x))^2}[/tex]
So, we have:
[tex]f(x) = \sqrt{1 + (-\frac 14e^{-x} + e^x)^2}[/tex]
Expand the exponents
[tex]f(x) = \sqrt{1 + (\frac{1}{16}e^{-2x} - \frac 12 + e^{2x})}[/tex]
Remove the bracket
[tex]f(x) = \sqrt{1 + \frac{1}{16}e^{-2x} - \frac 12 + e^{2x}}[/tex]
Evaluate the like terms
[tex]f(x) = \sqrt{\frac{1}{16}e^{-2x} + \frac 12 + e^{2x}}[/tex]
Multiply by 16/16
[tex]f(x) = \sqrt{\frac{16}{16}(\frac{1}{16}e^{-2x} + \frac 12 + e^{2x})}[/tex]
So, we have:
[tex]f(x) = \sqrt{\frac{1}{16}(e^{-2x} + 8 + 16e^{2x})}[/tex]
Take the square root of 1/16
[tex]f(x) = \frac{1}{4}\sqrt{e^{-2x} + 8 + 16e^{2x}}[/tex]
Express the radical as a perfect square
[tex]f(x) = \frac{1}{4}\sqrt{(e^{-x} + 4e^{x})^2}[/tex]
Evaluate the exponents
[tex]f(x) = \frac{1}{4} * (e^{-x} + 4e^{x})[/tex]
Evaluate the products
[tex]f(x) = \frac{1}{4}e^{-x} + e^{x}[/tex]
Hence, it has been proved that the arc length on any interval has the same value as the area under the curve.
Read more about areas at:
https://brainly.com/question/24487155
find the measure of angle A
Answer:
so 2x+3x+130=180
so 5x+130=180
5x=50
so 2x =20
3x which is angle a is equal to 30 degree
Answer:
The measure of angle A is 30 degrees.
Step-by-step explanation:
Since all triangles are equal to 180 degrees, you take set up an equation where u add 2x and 3x to get 5x and u add that to 130 and set it equal to 180
2x+3x+130=180 ( combine like terms)
5x=50 (subtract 130 from both sides to isolate our variable which is x)
x=10 (divide both sides by 5 to get rid completly isolate our variable)
Now we know x=10 you can plug that in as our x value so 3x becomes 3*10 which equals 30 which is your answer.
Has any one done this or have an idea what its even asking?
Answer: Its asking for the combination for the shapes like WXYX (example) ( I think) just search it up because I cant help much
Step-by-step explanation: j
2
.
5
6
120
a. What the relationship between BEC and Z BAC?
b. What the measure of ZBEC ?
c. What the measure of BDC ?
Hey I have tests tmrw that determine wether or not i can go to highschool and ive been struggling with my classes do yall know any websites that provide sample tests and such
Answer:
Umm, it test to go into high school is pretty simple
Step-by-step explanation:
Just go with your gut, because its very simple, believe in your self and don't double guess yourself! I believe in you, and Good Luck!
Ps. here is a amazing math solver that solves most of your math problems
https://www.symbolab.com/solver/step-by-step/42%20%2B%207x%20-%5Cleft(2x%20-38%5Cright)%3D0
The answer of 4.38 x 10^4 in ordinary notation is
4,38 * 10⁴ = 4,38 * 10 000 = 43 800
What is the coordinate f G if triangle E F G is created by dilating EFG with a scale factor of 4 about the origin?
Answer:
Segment EH and segment E prime H prime both pass through the center of dilation (A)
The complete question related to this found on brainly (ID:16812154) is stated below:
Triangle EFG is dilated by a scale factor of 3 centered at (0, 1) to create triangle E'F'G'. Which statement is true about the dilation?
E(0,5) F(1,1) G(-2,1) H(0,1)
a) segment EH and segment E prime H prime both pass through the center of dilation.
b)The slope of segment EF is the same as the slope of segment E prime H prime.
c) segment E prime G prime will overlap segment EG. segment
d) EH ≅ segment E prime H prime.
Step-by-step explanation:
help me............................
Find the percent of change. 32 to 28
Answer:
12.5 %
Step-by-step explanation:
change = 32 − 28 = 4 pages
Help
See the picture
Answer:
It is equal to 80.9
Step-by-step explanation:
Please give me brainliest I would appreciate it
For a school play, you are making plastic cubes that are 1.5 feet on each side. How Much plastic is needed to make one cube? If you want to make three cubes, how much plastic is needed?
Answer:
8.5 feet
Step-by-step explanation:
1.5 times 4
find the lcm and HCF of 90;105 and 150
Answer:
Step-by-step explanation:
lcm = 3150
hcf= 15
Solve. -6x^2 – 2 – 3x = -8
Answer:
Add 8 to both sides of the equation.
−6x²−2−3x+8=0 Add −2and 8.
−6x²−3x+6=0
Factor −3 out of −6x²−3x+6.
−3(2x²+x−2)=0
Divide each term by −3 and simplify.
2x²+x−2=0
Use the quadratic formula to find the solutions.
(−b±√b2−4(ac))/2a
Substitute the values a=2 , b=1, and c=−2 into the quadratic formula and solve for x .
(−1±√12−4⋅(2⋅−2))/(2⋅2) Simplify.
x=−1±√174
The final answer is the combination of both solutions.
x=(−1−√17)/4, (−1+√17/)4
The result can be shown in multiple forms.
Exact Form:
x=(−1−√17)/4, (−1+√17)/4
Step-by-step explanation:
Solve the equation f/2+ 9=4 how can you isolate the term f/2?
find the value of x and of the measure of the angle labeled 3x
Answer:
A
Step-by-step explanation:
stay safe and bless
*20 POINTS* find the value of x ? x = ___
Answer:
5
Step-by-step explanation:
Pls Help! Write an equation of the line that passes through the point (-2, 5) and is parallel to the line 2x − 3y = 12.
Please do not put a link or I will report you!
Answer:
[tex]y=\frac{2}{3}x+\frac{19}{3}[/tex]
Please help very urgent
Answer:
Marika's calculation is correct
Step-by-step explanation:
Lori has erroneously identified a common ratio of the geometion sequence
one has to divide subsequent term by the preceding term as was correctly by Marika. so Marika's calculation is correct.
hope it helps...
have a great day !!!
PLEASE HELP I WILL MARK BRAINLIEST
Answer:
172.12 sq in
Step-by-step explanation:
The figure is comprised of a semicircle, and 2 rectangles
Area of semicircle = 1/2(3.14)4^2 = 25.12
Area of rectangle with length of 9 and width of 7 = 7(9) = 63
Area of rectangle with length of 14 and width of 6 = 6(14) = 84
Total area = 25.12 + 63 + 84 = 172.12 sq in
Ms. Basta received a 30% discount on the purchase of a $1,250 laptop. How much did Ms. Basta save?
Answer:
Ms. Basta saved $375, and the laptop was $875 after the 30% off.
Answer:
$375 dollars
Step-by-step explanation:
since she recived a 30% discount on the product, we are looking for 30% of 1250, which is 375. So Ms. Basta saved $375 dollars.
If 18% of all Americans are underweight, find the probability that two randomly selected Americans will both be underweight.
Answer:
the answer is no they will not be all underweight, they will have a 5% chance of being underweight. They will probably be overweight if you just pick 3.
Step-by-step explanation:
The probability of two Americans will be underweight will be 0.0324.
What is probability?The probability of an event occurring is defined by probability.
Probability is also called chance because if you flip a coin then the probability of coming head and tail is nothing but chances that either head will appear or not.
As per the given,
Probability of selecting one American will be underweight = 18% = 0.18
Probability of the second one will be underweight = 0.18
Probability of both will be underweight = 0.18² = 0.0324
Hence "The probability of two Americans will be underweight will be 0.0324".The probability
For more information about the probability,
brainly.com/question/11234923
#SPJ2
Use the formula to figure out the area. Calculate your answer to the nearest hundredth.
Answer:
3.14
Step-by-step explanation:
A = 3.14(1)²
A = 3.14(1)
A = 3.14
Answer:
3.18
Step-by-step explanation:
On earth there are about 10 000 000 000 000 000 ants and 6 000 000 000 humans.
The ratio of humans to ants is approximately equal to:
Answer:
5000000:3
Step-by-step explanation:
https://auro.alone.gg/bYWtZVOw_
Answer:
Step-by-step explanation:
Ratio means division, simply we divide, and we get 3:5000000
This is the ratio of human to ants
What’s the answer to question 1,2,3,4?
Answer:
1. y=0
2. y=2
3. y=4
4. y=-2(-4)-4
=32
Answer:
y = 2x
x = 0
y = 2*0 = 0
Answer: 0
x = 1
y = 2*1 = 2
Answer: 2
x = 2
y = 2*2 = 4
Answer: 4
y = -2x - 4
x = -4
y = -2*-4 - 4 = 8 - 4 = 4
Answer: 4
Step-by-step explanation:
For thousands of years, gold has been considered one of the Earth's most precious metals. One hundred percent pure gold is 24-karat gold, which is
too soft to be made into jewelry. Most gold jewelry is 14-karat gold, approximately 58% gold. If 18-karat gold is 75% gold and 12-karat gold is 50% gold,
how much of each should be used to make a 14-karat gold bracelet weighing 300 grams?
How many grams of 18-karat gold needs to be used to make the bracelet?
