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Otrada [13]
3 years ago
15

How do we evaluate expression

Mathematics
1 answer:
skad [1K]3 years ago
3 0
<span>You have to substitute a number for each variable and perform the math operations.</span>
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Kail Ryans 10 laps around the track each day each lap around the track is 400 m meters how many times around the track will she
Semmy [17]
Hello

1 km = 1000 m

12 km = 12,000 m

Each day, she runs 10 * 400 m = 4000 m

12,000 m / 4000 m = 3

It will take 3 days.

Have a nice day
5 0
3 years ago
I need help on this question
rosijanka [135]

Answer:

11. Volume = 2181.2mm^3

12. Surface Area = 1204.49mm^2

Step-by-step explanation:

We first need to find the hypotenuse side of the triangle using the Pythagorean theorem:

a^2+b^2 = c^2

13.3^2+20.5^2 = c^2

176.89+420.25 = c^2

597.14 = c^2

24.44 = c

Now we can find the volume using the formula:

V = 1/4(16)sqrt-13.3^4+2(13.3*20.5)^2+2(13.3*24.44)^2

-20.5^4+2(20.5*24.44)^2-24.44^4

V = 2181.2mm^3

To find the surface area using the surface area formula:

A = (13.3*16)+(20.5*16)+(24.44*16)+1/2sqrt

13.3^4+2(13.3*20.5)^2+2(13.3*24.44)^2

-20.5^4+2(20.5*24.44)^2-24.44^4

A = 1204.49mm^2

7 0
3 years ago
Which of the following numbers is irrational?<br> 0.13<br> ✓3<br> -0.3
Sauron [17]
The square root of 3 is irrational
5 0
2 years ago
Whick error did she do and what the correct answer
marusya05 [52]

Answer:

The second one. The -2y should have been +2y

Step-by-step explanation:

a negative multiplied by a negative gives you a positive

8 0
3 years ago
Read 2 more answers
F(-1) if f(x) = -3x – 5
Varvara68 [4.7K]

Answer:

-2 would be the answer

8 0
2 years ago
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