giving brainliest to whoever gets it right

Answer:

It makes comparing magnitudes easier. It is much easier to estimating numbers easier. you can easily say that 0.0000000009 is smaller than 0.0000001 and even say but how much, and it reduces the amount of time you have to read the number, since instead of having 0s, you have the amount of 0s.

Answer: 7

Step-by-step explanation:

if Martha jarred 6 liters of jam in 2 days,

she will jarred 3 litters of jam in one day

for 21 litters she will need 7 days

21/3=7

Answer:

Brainly does not have the correct answer listed as a choice - it should be [tex]2187y^{14}[/tex]

Step-by-step explanation:

She paid 11 dollars total

Step-by-step explanation:

100% of $5 is $10

10% of $10 is $1

10 + 1 = 11

Answer:

0.09375

Step-by-step explanation:

brainest plz

Answer:

We conclude that the point of intersection i.e (x, y) = (-2, -5) will appear to be the solution to the system of equations.

Step-by-step explanation:

We know that when two lines meet or intersect at a point in the coordinate plane, the point where they meet is called the point of intersection.

The point of intersection is termed as the solution of the system of equations on a coordinate plane.

Given that the two lines intersect at (-2, -5)

In other words,

Thus, the point of intersection = (x, y) = (-2, -5)

Thus, we conclude that the point of intersection i.e (x, y) = (-2, -5) will appear to be the solution to the system of equations.

Answer: -2,-5

Step-by-step explanation: I got it right on edge

Given:

[tex]f(x)=\begin{cases}-\dfrac{1}{2}x^2 & 0<x\leq 3 \\ x^3+2x & x>3\end{cases}[/tex]

To find:

The value of f(3).

Step-by-step explanation:

For x=3, we have

[tex]f(x)=-\dfrac{1}{2}x^2[/tex]

Putting x=3  in the above function, we get

[tex]f(3)=-\dfrac{1}{2}(3)^2[/tex]

[tex]f(3)=-\dfrac{1}{2}(9)[/tex]

[tex]f(3)=-\dfrac{9}{2}[/tex]

Therefore, the value of f(3) is [tex]-\dfrac{9}{2}[/tex].  So, the correct option is a.

=====================================================

Explanation:

When two letters are placed together without any space between them, this implies multiplication.

gf = g times f

So we'll be multiplying the functions g and f.

There are two ways to approach this problem.

----------------------------------------------

Method 1

First we need to find f(4) and g(4)

f(x) = 2x+3

f(4) = 2*4+3

f(4) = 8+3

f(4) = 11

g(x) = 2x^2-1

g(4) = 2(4)^2-1

g(4) = 2(16)-1

g(4) = 32-1

g(4) = 31

Now we multiply the results

gf(4) = g(4)*f(4)

gf(4) = 11*31

gf(4) = 341

----------------------------------------------

Method 2

We'll multiply g(x) with f(x) like so

gf(x) = g(x)*f(x)

gf(x) = (2x^2-1)*(2x+3)

gf(x) = 2x^2*(2x+3) - 1(2x+3) .... distribute

gf(x) = 4x^3+6x^2-2x-3 .... distribute again

Now plug in x = 4

gf(x) = 4x^3+6x^2-2x-3

gf(4) = 4(4)^3+6(4)^2-2(4)-3

gf(4) = 4(64)+6(16)-2(4)-3

gf(4) = 256+96-8-3

gf(4) = 341

We get the same result. Method 1 may be the better method, but it will depend on your preference.

Answer:

0.5 i believe

Step-by-step explanation:

Answer:

answer:

0.5

Step-by-step explanation:

hope it helps

Answer:

b=320; slope=-30

Step-by-step explanation:

if you look along the y-axis find the spot that the line intercepts and then that's b

now for the slope

find two points on the line, i chose(8 , 120) and (4 , 240)  

use the slope formula: y2-y1 over x2-x1

240-120=120 and 4-8= -4

so the slope is 120/-4 and that can be simplified to 30/-1 or -30

The algebraic expression of the phrase "2 times the sum of −3 and m" is 2(-3+m)

Given,

The expression

"2 times the sum of −3 and m"

We know algebraic expression is the expression which consist of variables and constants with the algebraic operation.

Here,

2 times the sum of -3 and m

sum of -3 and m = -3+m

2 times the sum of -3 and m = 2×(-3+m)

The algebraic expression is 2(-3+m)

Hence, The algebraic expression of the phrase "2 times the sum of −3 and m" is 2(-3+m)

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Answer:

I think it's c

Step-by-step explanation:

but I might be

Answer:

x = ?

Step-by-step explanation:

Answer: A is the answer

Step-by-step explanation:

Answer:

Length of RT =  6 mm

Step-by-step explanation:

When the triangles are similar the ratio of corresponding sides are equal.

In given triangles we have ( we can take ratio of two sides also)

[tex]\frac{JI}{RT}=\frac{HI}{SR}[/tex]

We need to find length of RT = x

While length of JI= 8 mm

Length of HI = 12 mm

Length of SR = 9 mm

Putting values in formula and finding length of RT

[tex]\frac{8}{x}=\frac{12}{9} \\Cross\:Multiply\\9\times 8= 12\times 8\\72=12x\\x=\frac{72}{12}\\x=6\:mm[/tex]

So, Length of RT = x = 6 mm

Answer:

5

Step-by-step explanation:

Answer:

There isn't one!

Step-by-step explanation:

Integers are numbers with no fractional or decimal part. There is no non-fractional or decimal number between two consecutive integers, so the answer is there isn't one!

The answer is C: (-3,-1)

To test if points satisfy an equation, all you need to do is test the numbers in both of the equations it provides you

Here is proof the answer is C :

y > x - 2

(lets plug in point C)

-1 > -3 - 2

solve

-1 > -5 ?

Yes this statement is true- onto the next inequalitity!

y > 2x + 2

-1 > 2(-3) + 2

solve

-1 > -6 + 2

-1 > -4 ?

Yes, this inequality is true too!

Know we know answer c (-3,-1) is the right answer!

The point (x,y) satisfies the given system of inequalities is C. (-3,-1).

If the equation or inequality contains variable terms, then there might be some values of those variables for which that equation or inequality might be true. Such values are called solution to that equation or inequality.

Given that The graph below represents the following system of inequalities.

y> - 2

y > 21 + 2

So, y > x - 2

Lets plug in point C;

-1 > -3 - 2

solve;

-1 > -5 ?

Yes this statement is true- onto the next inequalitity.

y > 2x + 2

-1 > 2(-3) + 2

solve;

-1 > -6 + 2

-1 > -4 ?

Yes, this inequality is true too!

Therefore, the point (x,y) satisfies the given system of inequalities is C. (-3,-1).

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Two equal expressions combine to make an equation. Jake made a mistake in step 2 and the value of x is 24. The right answer is A.

When two equal expressions are added together with the aid of the equal sign "=," an equation is created.

You may find the solution to the given equation 1/3x + 7 = 15 as shown below.

1/3x + 7 = 15

Subtract 7 from both sides of the given equation

=> 1/3x + 7 - 7

=15 - 7.

1/3x = 8

Multiply both sides of the given equation by 3,

3 x 1/3x = 3 X 8.

x = 24

Hence, X has a value of 24. Jake also erred on the second step.

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Answer:

my boi jake made a mistake at step 2

Step-by-step explanation:

Answer: Dawn's score is 4

Answer: 4

brainlist pls???

Step-by-step explanation:

7-21=14

14-10=4

Answer:

[tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The half life is the amount of time it takes a substance to decay to half of its original amount.

Since the radioactive substance has a half life of 1000 years, there will be half of it left after 1000 years.

So, the fraction that will be left after 1000 years is [tex]\frac{1}{2}[/tex]

Answer:

1/2

Step-by-step explanation:

so if u do the waffalineneh times by arcimate it would equivently be the answer on top

Answer:

[tex]Difference = \frac{13}{40}[/tex]

Step-by-step explanation:

Given

[tex]Thursday = \frac{3}{8}\ mile[/tex]

[tex]Tuesday = \frac{7}{10}\ mile[/tex]

Required

How much farther is she on Tuesday

To do this, we simply calculate the difference between distance covered on both days.

[tex]Difference = Tuesday-Thursday[/tex]

[tex]Difference = \frac{7}{10} - \frac{3}{8}[/tex]

Take LCM

[tex]Difference = \frac{28- 15}{40}[/tex]

[tex]Difference = \frac{13}{40}[/tex]

Hence, she ran 13/40 mile farther on Tuesday

Answer:

✔️The correct system of linear equations:

2x + 3y = 34

3x + 2y = 36

Cost of each roast beef sandwich: $8

Cost of each turkey sandwich: $6

Step-by-step explanation:

Cost of each roast beef sandwich = x

Cost of each turkey sandwich = y

First platter consists of:

2 roast beef sandwiches, which costs 2 × x = 2x, and,

3 turkey sandwiches, which costs 3 × y = 3y.

Total cost of first platter is $34.

Thus, an equation that represents this scenario would be:

2x + 3y = 34.

The other platter consists of:

3 roast beef sandwiches, which costs 3 × x = 3x, and,

2 turkey sandwiches, which costs 2 × y = 2y.

Total cost is $36.

Thus, an equation that represents this scenario would be:

3x + 2y = 36.

The correct system of linear equations would be:

2x + 3y = 34

3x + 2y = 36

Find the value of x and y by solving simultaneously.

Thus:

2x + 3y = 34 ----› Eqn. 1 × 2

3x + 2y = 36 ----› Eqn. 2 × 3

4x + 6y = 68

9x + 6y = 108

Subtract

-5x = - 40

Divide both sides by -5

x = 8

Cost of each roast beef sandwich = x = $8

Substitute x = 8 into eqn. 1.

2x + 3y = 34 ----› Eqn.

2(8) + 3y = 34

16 + 3y = 34

3y = 34 - 16

3y = 18

Divide both sides by 3

y = 6

Cost of each turkey sandwich = y = $6

Answer:

A

Step-by-step explanation:

Answer:

C. 10 = 3x + 6

Step-by-step explanation:

10 = 3/2 (2x + 4)

becomes

10 = 3x + 6

Answer:

9 dollars per dog

Step-by-step explanation:

45/5=9

you divide to find the unit rate per 1 dog walked.

Answer:

  (d)

Step-by-step explanation:

You want the inverse function of the given one-to-one function.

A function given as ordered pairs is one-to-one if no x-values are repeated and no y-values are repeated.

As the directions tell you, the inverse function is found by changing the order of the values in each ordered pair.

  function  ⇒  inverse function

  (-1, 4)  ⇒  (4, -1) . . . . for example

See the attachment for the complete list.

Answer:

[tex]B.\ TE\ congruent\ to\ EN[/tex]

Step-by-step explanation:

[tex]As\ we\ know\ that,\\A\ median\ bisects\ the\ base\ side\ of\ a\ triangle.\\Hence,\\As\ AE\ is\ the\ median\ in\ this\ case,\\it\ bisects\ TN\ into\ congruent\ sides\ TE\ and\ EN.\\Hence,\\TE\ congruent\ to\ EN\\[/tex]

Answer:

3.70

Step-by-step explanation: