Could someone please help to answer this, please no spam, will give brainliest, thank you (Homework help)!!!
Answer:
Step-by-step explanation:
Hòa tan hoàn toàn 11 gam hỗn hợp gồm Fe và một kim loại M có hóa trị không đổi bằng dung dịch HCl thu được 0,4 mol khí H2. Còn khi hòa tan 11 gam hỗn hợp trên bằng dung dịch HNO3 loãng, dư thì thu được 0,3 mol khí NO (sản phẩm khử duy nhất). Kim loại M là?
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Answer:
chinese
Step-by-step explanation:
I dont know that language
the legs of an isosceles triangle have lengths 3x-1 and 2x+4. The base has length 3x+5. Whatis the length of the base?
Answer:
3x+5
Step-by-step explanation:
The base has length 3x+5. You answered your own question darling
Mary has a dance class every 2nd day and painting class every 3rd day. On which of the day will she have both the classes?
9514 1404 393
Answer:
every 6th day
Step-by-step explanation:
Mary will have a painting class on the same day as every 3rd dance class. That's the same day as every 2nd painting class. Mary has the two classes together on every 6th day.
[tex]\texttt{- 1 2 3 4 5 6 1 2 3 4 5 6}\\\texttt{d - d - d - d - d - d - d}\\\texttt{p - - p - - p - - p - - p}[/tex]
Write the equation of the line, in standard form, that passes through the points (-2, 2)
and (4, 5). Show all work
Mrs. Davis’ gym class has 24 girls and 18 boys. She wants to separate the class into stations. Each station must have the same numbers of girls and boys.
What is the greatest number of stations Mrs. Davis can make if every student has to participate in a station?
Answer:
6 stations
Step-by-step explanation:
Find the GCD of 24 and 18 in order to get the greatest number of stations
GCD is 6
What is the range of g?
y
9
7+
6
5
4
3
2
1+
t
-5 -4 -32
→
8 9
1
2 3
4
5 6
7
-2
-3
-4
-5
-6
-7
Answer:
[-1,5]
Step-by-step explanation:
all reals between -1 and 5
What is the greatest common factor of 12 and 20?
A. 2
B. 3
C. 4
D. 6
Answer
C.4
Step-by-step explanation:
hope it helps:)
Answer:
c
Step-by-step explanation:
suppose that p is the probability that a randomly selected person is left handed. The value (1-p) is the probability that the person is not left-handed. In the sample of 100 people, the function V(p)= 1000 p(1-p) represents the variance of the number of left-handed people in a group of 100.
a) What value of p maximizes the variance?
b) What is the maximum variance?
Answer:
a) 1/2
b) 250
Step-by-step explanation:
The start of the question doesn't matter entirely, although is interesting to read. What we are trying to do is find the value for [tex]p[/tex] such that [tex]1000p(1-p)[/tex] is maximized. Once we have that [tex]p[/tex], we can easily find the answer to part b.
Finding the value that maximizes [tex]1000p(1-p)[/tex] is the same as finding the value that maximizes [tex]p(1-p)[/tex], just on a smaller scale. So, we really want to maximize [tex]p(1-p)[/tex]. To do this, we will do a trick called completing the square.
[tex]p(1-p)=p-p^2=-p^2+p=-(p^2-p)=-(p^2-p+1/4)-(-1/4)=-(p-1/2)^2+1/4[/tex].
Because there is a negative sign in front of the big squared term, combined with the fact that a square is always positive, means we need to find the value of [tex]p[/tex] such that the inner part of the square term is equal to [tex]0[/tex].
[tex]p-1/2=0\\p=1/2[/tex].
So, the answer to part a is [tex]\boxed{1/2}[/tex].
We can then plug [tex]1/2[/tex] into the equation for p to find the answer to part b.
[tex]1000(1/2)(1-1/2)=1000(1/2)(1/2)=1000*1/4=250[/tex].
So, the answer to part b is [tex]\boxed{250}[/tex].
And we're done!
Solve the math problem
Answer:
x = 52°Step-by-step explanation:
The 124° angle is exterior to the given triangle.
The exterior angle is the sum of non- adjacent interior angles:
x + 72 = 124x = 124 - 72x = 52°Sum.of two interiors=Exterior
x+72=124x=124-72x=52°please with answer and explanation!!
Subtract the height of the dive from
The total distance he dove:
15 - 9 = 6
The pool is 6 meters deep
20 POINTS, Hi I really NEED HELP on this question, please
What is the approximate solution to the equation 2^t=22?
0.6712
1.0414
4.4594
11.0000
Answer:
[tex]t=4.4594[/tex]
Step-by-step explanation:
We can take the log 2 of both sides to get [tex]t=\log_2(22)[/tex].
We know that [tex]2^4<22<2^5[/tex], so [tex]4<t<5[/tex].
So, the solution is [tex]\boxed{t=4.4594}[/tex] because it's the only answer that works.
$50,000 is invested at an interest rate of 7% over 3 years. If intrest is compounded monthly what is the payout at the end of 3 years?
Answer:
THE ANSWER IS C,TRUST ME I DID THE EWUATION
CAN SOMEONE HELP ME WITHOUT SENDING LINKS
Answer:
Below.
Step-by-step explanation:
The slope = difference of y values/ difference of x values
13. Slope = (-5-5)/(-3-2)
= -10/-5
= 2.
14. Slope = (-8-8)/(7-9)
= -16/-2
= 8.
What is the answer to 6^7 / 6^4
Answer:
216
Step-by-step explanation:
6^7 means 6*6*6*6*6*6*6 and 6^4 means 6*6*6*6
so this is;
6*6*6*6*6*6*6 / 6*6*6*6
279936/1296
216
Kelly wants to decrease her daily sugar intake from 40 grams of sugar to 30 grams of sugar. By what percentage does Kelly want to decrease her daily intake of sugar?
10%
⊝
25%
⊝
75%
⊝
90%
Answer:
10% is the answer to this question
A new car is purchased for 20800 dollars. The value of the car depreciates at 10.75% per year. What will the value of the car be, to the nearest cent, after 13 years.
Answer:
Step-by-step explanation: Exponential depreciation formula :-
y = A(1 - r)^t, where y is the value of good after t years , r is rate of depreciation and A is the initial value.
Given : A= $20800 ; r=10.75%=0.1075
The equation models this situation:
Then, the value of car after t=13 years :-
Hence, the value of car after 13 years = $4742.10
Which number is larger, 2x10^-3 or 3x10^-2? Explain.
Answer:
3×10'-2 is larger
Step-by-step explanation:
2×10'-3=0.002
3×10'-2=0.03
Answer:
3x10^-2 is larger
Step-by-step explanation:
2x10^-3 = 0.002
beause 10^-3 = decimal place three place to the left
3x10^-2 = 0.03
beause 10^-2 = decimal place two place to the left
What would be the range of possible whole number values (x) for a 3rd side of the triangle with two sides of 5 in. and 8 in.?
& Name one possible value for a third side?
Correct Answer Only
Answer:
Range of the third side of a triangle
Step-by-step explanation:
Any one side of a triangle must be shorter than the sum of the other two sides. Therefore, the third side length x must be between 5 and 35, not including those endpoints: 5 < x < 35. All whole numbers satisfying this range would form a triangle.
20 is a possible value for a third side
what is the reciprocal of -9/8?
the reciprocal is 8/-9 just reverse the numbers
Cameron had a balance of $450.00 in his account, and then he made a purchase for $517.50. What is the
new balance in his account?
Answer:
-$67.50
450 - 517.5 = -67.5
The local community center hosted a marathon as a fundraiser. Runner A completed the marathon with a time of 4.37 hours. Runner B completed the marathon in 4.29 hours. Which runner completed the race faster (by having a lower time)? Explain how you know. (100 points + brainliest)
Based on the information given in the question, the completion time of runner B is lower than that of Runner A ; Hence, runner B completed the race faster.
Given the running time of two runners :
Runner A = 4.37Runner B = 4.29The runner with the lesser running time will complete the marathon faster as this means he has a higher speed.
Comparing the running times of both runners :
4.37 > 4.29Therefore, Runner B completed the race faster than runner A.
Learn more : https://brainly.com/question/18796573
Would it be appropriate to display the data with a pie chart?
Answer:
Its the one right below that
Step-by-step explanation:
Rather than showing how these parts contribute to a whole, they just show the percentages of how many agree in each catagory.
Hope this helps!
Pls mark brainliest if correct:)
hi what's this answer please? -3 1/2 - 1 5/6 =
Answer:
12
Step-by-step explanation:
-31*6 - 15*2
2*6
= -186 - 30
12
= -216
12
Answer = -216
12
Hope it helped
Answer:
- 5 [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
- 3 [tex]\frac{1}{2}[/tex] - 1 [tex]\frac{5}{6}[/tex] ( change to improper fractions )
= - [tex]\frac{7}{2}[/tex] - [tex]\frac{11}{6}[/tex] ( multiply numerator/denominator of first fraction by 3 )
= - [tex]\frac{7(3)}{2(3)}[/tex] - [tex]\frac{11}{6}[/tex]
= - [tex]\frac{21}{6}[/tex] - [tex]\frac{11}{6}[/tex]
= [tex]\frac{-21-11}{6}[/tex]
= [tex]\frac{-32}{6}[/tex]
= - [tex]\frac{32}{6}[/tex]
= - 5 [tex]\frac{2}{6}[/tex]
= - 5 [tex]\frac{1}{3}[/tex]
4(y-2)=-0.6(y+0.3 what is the answer and how to do it
Answer:Solution for 0.3(y-2)+0.4y=0.3y-0.6 equation:
0.3(y-2)+0.4y=0.3y-0.6
We move all terms to the left:
0.3(y-2)+0.4y-(0.3y-0.6)=0
We add all the numbers together, and all the variables
0.4y+0.3(y-2)-(0.3y-0.6)=0
We multiply parentheses
0.4y+0.3y-(0.3y-0.6)-0.6=0
We get rid of parentheses
0.4y+0.3y-0.3y+0.6-0.6=0
We add all the numbers together, and all the variables
0.4y=0
y=0/0.4
y=0
What is the remainder of this polynomial function?
Step-by-step explanation:
P(x) is divided by (x+3)
=> P(-3) = ...?
the provided options are : (-3, 6) , (0, 3) and (3, 9)
if the x coordinate = -3, the y coordinate = 6
so, the remainder is 6
Multiply the binomials: (x+6)•(x-8)
Answer:
[tex]\sf x^2-2x-48[/tex]
Step-by-step explanation:
[tex]\begin{aligned} &\sf (x+6)(x-8) \\=&\sf x^2-8x+6x-48 \\=&\boxed{\sf x^2-2x-48} \end{aligned}[/tex]
if the order of matrix A is mxp and the order of matrix B is pxn what is the order of matrix ?
Answer:
mxn will b the order of matrix
Step-by-step explanation:
write the log equation as an exponential equation. you do not need to solve for x.
Answer:
[tex]5^{1/6} =2x[/tex]
Step-by-step explanation:
Log and exponential forms are inverses. Additionally, the information from one can be used to write in it another form. In a log equation, there are three parts. The formula is [tex]log_{b}(x)=y[/tex]. The formula for exponential equations is [tex]b^y=x[/tex]. This means to find this equation in exponential form write 5 as the base, 1/6 as the power, and 2x as the other side of the equation. This looks like, [tex]5^{1/6} =2x[/tex].
WILL MARK BRAINLIEST
Translate into expression
What is the product of six and a number added to three
Answer:
[tex]6x[/tex] + [tex]3[/tex]