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Cerrena [4.2K]
3 years ago
12

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

Mathematics
2 answers:
Anna35 [415]3 years ago
7 0

Answer:

When the input is 4, the output of f(x) = x + 21 is 25.

Step-by-step explanation:

The given function is

f(x)=x+21

We need to find the output of the function if the input is 4. It meas we need to find the value of f(4).

Substitute x=4 in the given function.

f(4)=(4)+21

f(4)=4+21

After addition, we get

f(4)=25

When the input is 4, the output of f(x) = x + 21 is 25.

Therefore the required answer is 25.

Tom [10]3 years ago
3 0

f(x)=x+21\Longrightarrow f(4)=4+21=\boxed{25}

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A car is driving at 70 kilometers per hour. How far, in meters, does it travel in 5 seconds?
notka56 [123]

Answer:

97.2 m

Step-by-step explanation:

\frac{70 km}{1 h} = \frac{70000 m}{3600 s} = 19.4 m/s

Distance = speed x time = 19.4 m/s x 5 s = 97.2 m

8 0
3 years ago
3)
hram777 [196]

Answer:

D: x < 20

Step-by-step explanation:

-4x + 16 > -64

subtract 16 from both sides because you must isolate x.

-4x + 16 - 16 > -64 - 16

-4x > -80

Then divide -4 on both sides... I believe that when you divide a number by a negative number you must flip the sign...

-4x/ -4 < -80/ -4

        x < 20

(negative divided by a negative will result in a POSITIVE.)

Hope this helped... I truly apologize if this is wrong..

3 0
3 years ago
Area of square whose side is 11 cm ________
Gnom [1K]

Answer:

121 cm²

Step-by-step explanation:

Square's area formula is

A=a²

where a stands for a side of the square

A=(11 cm)²

A=121 cm²

whenever you're talking of area you put cm²

8 0
2 years ago
Read 2 more answers
How do u put 72 7/10 into decimal?
NNADVOKAT [17]

Answer:

72.7

Step-by-step explanation:

First multiply 72 by 10

because 72 is 72 10s, making it a whole number.

then add 720 (72 times 10) to 7.

then all of that over 10.

then just divide.

727/10

72.7

this is what you do for all mixed numbers like that one.

7 0
3 years ago
Read 2 more answers
Integer that describes debit of $40
Sladkaya [172]
Alright - we want to start off by seeing if this number would be positive or negative. Debit means that you owe something, or that you have to pay that amount of money. If you had money to buy things with, that would be positive, but since debit means you haven’t paid something off yet, that is negative. Next, since you have 40 dollars in debt, you have -40 dollars.

Feel free to ask further questions!
3 0
3 years ago
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