A wall clock is generally a more precise tool for measuring a length of time than a stopwatch.

True
or

False ​

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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.

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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

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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:

130 pieces of candy in 5 bags

Step-by-step explanation:

234/9 equals 26, that means there would be 26 pieces of candy in 9 bags, therefore 26x5 equals 130, and just to make sure, divide 130/26 to check if its wrong, but it should be 130. :) hope this helps you out!

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: 5/7=0.(714285)

Step-by-step explanation:

[tex]\displaystyle\\\frac{5}{7}=0.(714285)[/tex]

Answer:

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

Step-by-step explanation:

Answer:

x = ?

Step-by-step explanation:

Answer:

D -4

Step-by-step explanation:

rise over run rise=-12 run= 3 - 12/3 simplified is -4

Answer:

4

Step by step

you move 12 spots to get to 8 from -4 and 3 to get from -1 to 2 then you do 12/3

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

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!

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

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.

To learn more about Equation solving, visit:

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Answer:

my boi jake made a mistake at step 2

Step-by-step explanation:

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)

Learn more about algebraic expression here

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Answer:

5

Step-by-step explanation:

Answer:

0.09375

Step-by-step explanation:

brainest plz

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: Dawn's score is 4

Answer: 4

brainlist pls???

Step-by-step explanation:

7-21=14

14-10=4

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

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:

9 dollars per dog

Step-by-step explanation:

45/5=9

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

Answer:

I think it's c

Step-by-step explanation:

but I might be

Answer:

0.5 i believe

Step-by-step explanation:

Answer:

answer:

0.5

Step-by-step explanation:

hope it helps

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: A is the answer

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

Multiply 50 by 2

She paid 11 dollars total

Step-by-step explanation:

100% of $5 is $10

10% of $10 is $1

10 + 1 = 11

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

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.