If you create an app similar to brainly, what things you gonna to change in this ?​

Answers

Answer 1

Answer:

The

C

h

a

t

section

It's difficult to access

It's also really

sen-

sitive

to what you could type.


Related Questions

convert radians to degrees

Answers

Answer:

135 degrees

Step-by-step explanation:

The image shows how i had my answer please

2 books are removed at random from a set of 2 mysteries, 1 biography, and 1 romance. What is the probability that the 2 books consist of 1 mystery and 1 biography? Draw a tree diagram to help you find the answer.
1/3
1/6
1/4
5/12
I did the problem and I know that 1/4 and 5/12 are wrong

Answers

Answer:

1/6

Step-by-step explanation:

Check the attachment.

Consider the line y=7x-1.
Find the equation of the line that is perpendicular to this line and passes through the point (-2, 4).
Find the equation of the line that is parallel to this line and passes through the point (-2, 4).
Note that the ALEKS graphing calculator may be helpful in checking your answer.

Answers

Answer:

Step-by-step explanation:

I’m so confused by this:( Could someone please explain how to do this thoroughly?

Answers

Answer:

A.  Complementary and Adjacent

B.  ∠KLM = 22°  and  ∠MLN = 68°

Step-by-step explanation:

Question A

As ∠KLN is a right angle, ∠KLN = 90°

⇒ ∠KLM + ∠MLN = 90°

When the sum of two angles is 90°, they are called complementary angles.

∠KLM and ∠MLN have a common side of ML and a common vertex (corner point) L.

When two angles have a common side and a common vertex but do not overlap in any way, the are called adjacent angles.

Question B

First find n:

∠KLM + ∠MLN = ∠KLN

⇒ 2n + (6n + 2) = 90

⇒ 2n + 6n + 2 = 90

Combine like terms:

⇒ 8n + 2 = 90

Subtract 2 from both sides:

⇒ 8n = 88

Divide both sides by 8:

⇒ n = 11

Now substitute the found value of n into the expressions for the two angles:

⇒ ∠KLM = 2(11) = 22°

⇒ ∠MLN = 6(11) + 2 = 68°

Evaluate [tex]\frac{1}{2^{-2}x^{-3}y^{5} }[/tex] for x=2 and y=-4.

A)-16
b)-4
c)[tex]-\frac{1}{32}[/tex]
d)16

Answers

Answer:

[tex]\bf C)\: -\cfrac{1}{32}[/tex]

Step-by-step explanation:

[tex]\tt \cfrac{1}{2^{-2}x^{-3}y^5}[/tex]

[tex]\tt x=2\\y=-4[/tex]

~

Substitute ''x'' with '2' & 'y' with "-4":-

[tex]\tt \cfrac{1}{2^{-2}\times \:2^{-3}\left(-4\right)^5}[/tex]

First let's solve [tex]\tt 2^{-2}\times \:\:2^{-3}\left(-4\right)^5[/tex]

[tex]\tt 2^{-2}\times \:2^{-3}=\boxed{\cfrac{1}{32} }[/tex]

[tex]\tt \cfrac{1}{32}\left(-4\right)^5[/tex]

Calculate exponents:- -4^5= -1024

[tex]\tt \cfrac{1}{32}\left(-1024\right)[/tex]

Remove parentheses, apply rule:- [tex]\tt a\left(-b\right)=-ab[/tex]

[tex]\tt-\frac{1}{32}\times \:1024[/tex]

[tex]\tt \cfrac{1}{32}\times \cfrac{1024}{1}[/tex]

Apply fraction rule:-

[tex]\tt -\cfrac{1\times \:1024}{32\times \:1}[/tex]

[tex]\tt \cfrac{1024}{32}[/tex]

Divide numbers:-

[tex]\tt -32[/tex]

Now that we're done factoring the denominator let's bring down the numerator which is ' 1 ':-

[tex]\tt -\cfrac{1}{32}\;\; \bf Answer[/tex]

☆-------☆-------☆-------☆

[tex]\dfrac 1{2^{-2}\cdot x^{-3}\cdot y^5}\\\\=\dfrac 1{2^{-2} \cdot2^{-3} \cdot (-4)^5}\\\\=-\dfrac 1{2^{-2} \cdot 2^{-3} \cdot (2^2)^5}\\\\=-\dfrac{1}{2^{-2} \cdot 2^{-3} \cdot 2^{10}}\\\\=-\dfrac{1}{2^{-2-3+10}}\\\\=-\dfrac 1{2^{5}}\\\\=-\dfrac 1{32}[/tex]

For which values of x is the expression undefined

Answers

Answer:

7, -9

Reasoning:

When x is 7 or -9, the denominator equates to zero, making the expression undefined because nothing can be divided by zero.

The answer is 7 ,-9 :)


cm
1
cm
3x
**2 cm
1. Write an expression that represents the perimeter of the figure and simplify.
3x2 +7X+7
A.
3x?
O
7x? +7x +7
B.
3x?
O
x2+2x +7
C.

3x2 + 7x +21
D.
3x?

Answers

Answer:

The answer is D

Step-by-step explanation:

(7/x² × x²)+(1/3×x²)+(x+2/x × x²)

(7 + x/3 + x²+2x) times 3 to eliminate the 3 under x/3

so u will get 21+x+3x²+6x

Final answer = 3x²+7x+21

The average gas mileage (mpg) for vehicles produced by a particular automotive company is 26 mpg, with a standard deviation of 2 mpg. What percentage of the vehicles produced by the automotive company have a gas mileage greater than 24?

Note: Assume that a Normal model is appropriate for the distribution of the gas mileages for the vehicles.

Answers

Answer:

above 84°/. of the vehicles have a gas mileage greater then 24 mpg

if i make 8.50 an hr and i work 30 hours a week 5 days a week how much would i make in a month?

Answers

i made about 17.49 in a mouth

A local restaurant uses a computer to randomly select an appetizer and accompanying sauce. The table below shows all the
possible outcomes when ordering





What is the probability of receiving chicken or ribs and getting a red sauce?

Answers

Answer:

B 1/5

Step-by-step explanation:

there is 20 combinations

4 of the twenty are ribs or chicken with a red sauce

4/20 = 1/5

¿Qué significa un punto en el diagrama de líneas?​

Answers

un punto en un gráfico de líneas es un valor específico que normalmente es un valor de entrada y salida (x)

[tex]Find } \sum r^{2} \cdot{ }^{20} C_{r}\end{equation}[/tex]
Options:
(a) [tex]$2^{20}$[/tex]
(b) [tex]$2^{21}$[/tex]
(c) [tex]$210 \times 2^{19}$[/tex]

Answers

I bet the sum you're referring to is supposed to be

[tex]\displaystyle \sum_{r=0}^{20} r^2 \times {}^{20}C_r[/tex]

or equivalently,

[tex]\displaystyle \sum_{r=0}^{20} r^2 \binom{20}r[/tex]

where [tex]\binom nk = \frac{n!}{k!(n-k)!}[/tex] is the binomial coefficient.

Recall the binomial series,

[tex](1+x)^\alpha = \displaystyle \sum_{r=0}^\infty \binom\alpha r x^r[/tex]

which is valid for |x| < 1. (Note that if r > α, the binomial coefficient is defined to be zero, so there really are only α many terms when α is a whole number.)

Differentiating both sides with respect to x gives

[tex]\alpha (1+x)^{\alpha-1} = \displaystyle \sum_{r=0}^\infty r \binom\alpha r x^{r-1}[/tex]

Multiply both sides by some arbitrary x in |x| < 1 :

[tex]\alpha x (1+x)^{\alpha-1} = \displaystyle \sum_{r=0}^\infty r \binom\alpha r x^r[/tex]

Repeat:

[tex]\alpha (1+x)^{\alpha-1} + \alpha(\alpha-1) x(1+x)^{\alpha-2} = \displaystyle \sum_{r=0}^\infty r^2 \binom\alpha r x^{r-1}[/tex]

[tex]\alpha x (1+x)^{\alpha-1} + \alpha(\alpha-1) x^2 (1+x)^{\alpha-2} = \displaystyle \sum_{r=0}^\infty r^2 \binom\alpha r x^r[/tex]

Let α = 20, and let x approach 1 from below. The right side converges to the sum we want, while the left side converges to

[tex]20 \times 2^{19} + 20\times19\times 2^{18} = (20 + 10\times19)\times2^{19} = \boxed{210\times2^{19}}[/tex]

Help picture below problem 15

Answers

Answer:

B. Pentagon

Step-by-step explanation:

A Pentagon is a polygon with 5 sides like this one.

Hope that helps!

1 message What is the graph of the solution set of b - 4 ≥ -1?

Answers

Answer:

Hope the picture will help you!!

What is the equation
of the line that passes through the point (-2, -3) and has a
slope of -1?

Answers

Answer:

Step-by-step explanation:

Hello:

an equation   for the line is : y =mx +b    (m: is a slope )

given : m = -1

the equation is : y = -x+b

through the point (-2,-3) :-3 =-(-2)+b....... b=-5

the equation is : y = -x-5

Find the value of x.
45°
96°

Answers

Answer:

39

Step-by-step explanation:

all angles of a triangle equal to 180, so you just have to subtract those two known angles from 180, and you will get the answer.

Question : -

Find the value of angle x .

Given : -

First angle = 45°

Second angle = 96°

Third angle = x°

To Find : -

We have to find the value of x .

Concept : -

The concept of this question belongs to angles of triangle . We know that the sum of all the three angles of triangle is 180°.

So let's get started : -

As we know that all the angles of triangle is equal to 180° . So :

1st angle + 2nd Angle + 3rd Angle = 180°

45° + 96° + x° = 180°

141° + x° = 180°

x° = 180° - 141°

x° = 39°

Therefore , angle x is of 39° .

Verifying : -

45° + 96° + 39° = 180°

141° + 39° = 180°

180° = 180°

L.H.S = R.H.S

Hence, Verified .

Thus, our answer is valid .

#[tex] \sf \bold{Keep \: Learning}[/tex]

[tex]\frac{-65}{100} - \frac{12}{7}[/tex]

Answers

Hope it helps best of luckkkkk….

Answer:

-331/140

Step-by-step explanation:

Would appreciate some help

Answers

Answer:

e) 36x² - 32y³ = (4)(9x² - 8y³)

f) 45a⁴ - 54a³ = (9a³)(5a - 6)

Step-by-step explanation:

e) 36x² - 32y³ = (4)(9x² - 8y³) becuase 4*9 = 36 and 4*8 = 32

f) 45a⁴ - 54a³ = (9a³)(5a - 6) becuase 9*5 = 45 and 9*6 = 54 and when a is multiplied by a³ you get a⁴

(the exponent are added)

PLEASE RATE!! I hope this helps!!
If you have any questions comment below

help pplease i need help

Answers

Answer:

15/2 min/m

Step-by-step explanation:

Minuters per meter = min/m

4.5 min/(3/5) m

4.5 x 5/3 = 7.5

7.5 = 15/2

Hope this helps!

The graph shows the distance (d) in miles that an animal runs at a constant speed in (t) minutes. Which equation represents this situation.

Answers

There is no graph or equations shown sorry

The following graph is a function. True or False

Answers

Answer:

TRUE

Step-by-step explanation:

Do the pencil test . It doesnt have repeating X's.

Answer:

It is actually True so when you do it press true

Which statement is a TRUE statement about rectangles?
The sides in a rectangle are not parallel.
The angles in a rectangle are all different.
The opposite sides in a rectangle are equal.
All the sides in a rectangle are equal.

Answers

Answer:

The opposite sides in a rectangle are equal.

Step-by-step explanation:

If all sides were equal, you would have a square.

If the opposite sides were not parallel, you would not have 4 sides that meet at 90 degrees.

All angles in a rectangle are 90 degrees.

Answer:

The opposite sides in a rectangle are equal.

Step-by-step explanation:

hope this helps  hope you get it correct

Can you do number 1 for me

Answers

Answer:

c. 3/5

Step-by-step explanation:

Fill in the blanks below with the correct units. (a) John's desk is about 2 ? long. (b) Milan used a fork that had a mass of about 28 ? . (c) Rita poured about 10 ? of medicine onto a spoon.

Answers

Answer:

Blank 1. is 2 feet

Blank 2. is 28 grams

Blank 3. is 8 mililiters

Step-by-step explanation:

Write an expression that can be used to produce vector g from vectors e and f Explain how
you determined that expression.

Answers

Answer:

Step-by-step explanation:

vector e is (-1,5),f is (3,-4),g is (2,1)

2i+j=x(-i+5j)+y(3i-4j)

2=-x+3y (multiply by 5)

10=-5x+15y

1=5x-4y

add

11=11y

y=1

2=-x+3(1)

x=3-2=1

2i+j=1(-i+5j)+1(3i-4j)

What are the seven principles of entrepreneurial finance? List them?

Answers

Answer: 1) Real, human and financial capital must be rented from owners, 2) Risk and expected reward go hand in hand, 3) While accounting is the language of business, cash is the currency, 4) New venture financing involves search, negotiation and privacy, 5) A venture’s financial objective is to increase value, 6) It is dangerous to assume that people act against their own self-interests, 7) Venture character and reputation can be assets or liabilities. 

Solve the linear differential equation 2xy' + y = 2√x

Answers

Answer:

Step-by-step explanation:

General form of the linear differential equation can be written as:

[tex]\frac{dy}{dx}+P(x)y=Q(x)[/tex]

For this case, we can rewrite the equation as:

[tex]\frac{dy}{dx}+\frac{1}{2x}y=\frac{\sqrt{x}}{x}[/tex]

Here [tex]P(x) =\frac{1}{2x}; Q(x)=\frac{\sqrt{x}}{x}[/tex]

To find the solution (y(x)), we can use the integration factor method:

[tex]Fy(x)=\int Q(x)Fdx+C \rightarrow F=e^{\int P(x)dx[/tex]

Then [tex]F=e^{\int \frac{1}{2x}dx}=e^{\frac{1}{2}\ln|x|\right}=\sqrt{|x|}[/tex]

So, we can find:

[tex]y\sqrt{|x|}=\int \frac{\sqrt{x}\sqrt{|x|}}{x}dx+C[/tex]

Suppose that [tex]x\in \double R[/tex], then [tex]\sqrt{|x|}=\sqrt{x}[/tex] , and we find:

[tex]y\sqrt{x}=x+C \rightarrow y(x)=\sqrt{x}+\frac{C\sqrt{x}}{x}[/tex]

To check our solution is right or not, put your y(x) back to the ODE:

[tex]y' = \frac{1}{2\sqrt{x}}-\frac{C}{2\sqrt{x^{3}}}[/tex]

[tex]2xy'=\frac{x-C}{\sqrt{x}}[/tex]

[tex]2xy'+y=\frac{x-C}{\sqrt{x}}+\sqrt{x}+\frac{C\sqrt{x}}{x}=2\sqrt{x}[/tex]

(it means your solution is right)

Which expression is not equivalent to 2\3 x 4?

Answers

Answer:

8/3

Step-by-step explanation:

Simplify the expression.

Answers

Answer:

the answer is

[tex] \frac{12 {c}^{8} }{ {d}^{2} } [/tex]

Step-by-step explanation:

[tex] \frac{12}{ {c}^{ - 8} {d}^{2} } [/tex]

CAN SOMEONE PLSSSSS ANSWER BOTH OF THESE QUESTIONS
I WILL MARK BRAINLIEST

Answers

Answer: B and C

Step-by-step explanation:

404 + 50 + 50 = 504

you are buying  144 magazines total

504/144 = cost of one magazine

cost of one = 3.50

you are paying $60 a year for 12 years

60 x 12 = 720

720/144 = 5

5 - 3.50 = 1.50

2.

120x + 180x = 1080

300x = 1080

x = 1080/300

x = 3.6

3.6 x 60 = 216

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