Marco calculated that he could run a 5K race in 28 minutes. His actual time was 26 minutes. What is the percent error in his estimation? Round to the nearest tenths place.

Answer:

13,500

Step-by-step explanation:

Answer: 13,500

Step-by-step explanation:

So the 4 is in the hundred place than u look to the right where the next digit is which is 8. If its 5 or more u round up but if its 5 or less it stays the same. So 8 is 5 or more than u round up the 4 to 5 and leave the rest of the digit 0's. but u leave the 13 the same. If that makes sense.

Answer:

Top Left: Acute Top Right: Acute Bottom Right: Obtuse Bottom Left: Right

Step-by-step explanation:

The top left and right have all angles less than 90 degrees which makes them acute. The Bottom right has an angle over 90 degrees which makes it obtuse, and the last one has a right angle 90 degrees.

Answer:

c would be the answer you are looking for and please mark brainliest

Step-by-step explanation:

Options A and D have functions that are inverses of each other.

The inverse function is defined as a function obtained by reversing the given function.

To check whether two functions are inverses of each other, we need to check if the composition of the functions in both orders results in the input value.

Here, we need to check if f(g(x))=x and g(f(x))=x for all values of x in their domains.

A. f(x) = 7/(x-9) and g(x) = (x+9)/7

f(g(x)) = f((x+9)/7) = 7/((x+9)/7 - 9) = 7/(x/7) = x, so f and g are inverses of each other.

B. f(x) = x/6 + 8 and g(x) = 6x - 8

f(g(x)) = f(6x-8) = (6x-8)/6 + 8 = x/6 + 8/6 = x/6 + 4/3, which is not equal to x. Therefore, f and g are not inverses of each other.

C. f(x) = 2 + ∛x and g(x) = 2 - x³

f(g(x)) = f(2 - x³) = 2 + ∛(2 - x³) ≠ x, so f and g are not inverses of each other.

D. f(x) = 5x - 11 and g(x) = (x+11)/5

f(g(x)) = f((x+11)/5) = 5((x+11)/5) - 11 = x, and g(f(x)) = g(5x-11) = (5x-11+11)/5 = x/5, so f and g are inverses of each other.

Therefore, only options A and D have functions that are inverses of each other.

Learn more about inverse functions here:

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Answer:true

Step-by-step explanation:

its true i think

Answer:

False because the absolute value is always going to be positive.

Step-by-step explanation:

Answer:

cost to mail package

Step-by-step explanation:

the weight is not dependant on the cost to mail the package

the cost depends on how much the package weighs.

Answer:

sorry I can

Step-by-step explanation:

why wala pa kame jan sorry wait kalang

$6 per quart.

A quart is 1/4 of a gallon.

Answer:

$6 per quart

Step-by-step explanation:

Since we are trying to find out how much money a quart of paint will cost, we need to find out how many quarts are in one gallon.

There are 4 quarts in a gallon, therefore we take $24 divided by 4 and get $6 per quart.

A. Quadrant I

B. Quadrant I

C. Quadrant II

D. Quadrant III

Answer:

The first answer = t ≥-7

Step-by-step explanation:

If one side of an inequality is multiplied by a negative number, to find an equivalent inequality the “direction” of the inequality has to change (for example, ≥ has to change to ≤ ). Find a so that y > x is equivalent to − 3 y < a x.

Answer: B

Step-by-step explanation:-2^2 is the only negative number, 2^-2 is the only fraction, anything to 0th power equals 1, and (-2)^2 equals 4.

Answer:

The answer is B

Step-by-step explanation:

Let's solve:

(-2)^2= 4

2^0= 1

2^-2= 1/4

-2^2= - 4

Least to greatest is

-4, 1/4, 1, 4

Look back at the original equations and place them to get her with the answers to equal B

Answer:

y = 4

Step-by-step explanation:

Answer:

The equation of the line is 4

But it is also undefined

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

[tex]F(n)=2n+5[/tex]

[tex]F(5) = 2(5)+5[/tex] (substitute 5 in to get the 5th term)

[tex]=10+5[/tex]

[tex]=15[/tex]

∴ The 5th term of the sequence is 15

Answer:

-9/2!

Step-by-step explanation:

For this one, It's a bit hard! But, using the process of elimination, you can tell, that since the Y's are going down, this is a negative slope. Since there was only two answers, and only one was negative, it's -9/2!

I really hope this helped... I know it wasn't the best, but I graphed it for you!

Answer:

Can u put a pic 9f the question

Answer:

11 in = 33 in.

Step-by-step explanation:

6 in. = 18 in.

the second triangle is 3 times bigger than the smaller one.

Answer:

A. Option 1

Sign up cost = 0

1 Month = 125

2 Months = 150

3 Months = 175

4 Months = 200

Step-by-step explanation:

For every option simply write what the starting cost is in the top box for every option. Then multiply the monthly cost by how many months for each box and then add the starting cost. The result of the multiplication and addition will be what you put in each box.

Answer:

9 1/3

Step-by-step explanation:

Step-by-step explanation:

=

−

±

2

−

4

√

2

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

9

2

−

8

1

=

0

9x^{2}-81=0

9x2−81=0

=

9

a=

a=9

=

0

b={\color{#e8710a}{0}}

b=0

=

−

8

1

c={\color{#129eaf}{-81}}

c=−81

=

−

0

±

0

2

−

4

⋅

9

(

−

8

1

)

√

2

⋅

9

x=2⋅9−0±02−4⋅9(−81)​​

Answer:

9

Step-by-step explanation:

just reciprocate and change the negative sign to positive

Answer: 12, 24, 36, 48, and it just keeps going

Step-by-step explanation:

Answer:

12/24, and 36/48ths.

Step-by-step explanation:

rewrite em

Answer:

y= 1/4x + 3

Step-by-step explanation:

Answer:

y= 1/4x +3

Step-by-step explanation:

I used a graph

Answer:

8

Step-by-step explanation:

8 ounces = 8 ounces

Answer:

False, they take form of a U shape

Answer:

78 balls buddy

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

The greatest common factor is 2x