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3 years ago

Who runs the race faster?

Mathematics

1 answer:

Troyanec [42]3 years ago

6 0

Answer:

Hector

Step-by-step explanation:

Hector is running 2.57, which is less/faster then 2.63

have a nice day :3

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Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.

klasskru [66]

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

x^2+3x-70=0

(x-7)(x+10)=0

x-7=0

x+10=0

x=-10

AB=x+5

AB=12

AB=-5

BC=x-2

BC=5

BC=-12

Area of ABC = 30cm2

Perimeter of ABC = AB+BC+AC

8 0

2 years ago

Gergio ran 5 kilometers in 30min. If he ran at this same pace how many did he run each min

Leokris [45]

Answer:

6 minutes per kilometer

7 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7Bm%7D%20%20%3D%20n%20" id="TexFormula1" title=" {2}^{m} = n " alt=" {2}^{m} =

sveta [45]

Answer:

$\displaystyle n^3-\frac{1}{n^{2}}$

Step-by-step explanation:

Exponents Properties

We need to recall the following properties of exponents:

$(a^x)^y=(a^y)^x=a^{xy}$

$\displaystyle a^{-x}=\frac{1}{a^x}$

We are given the expression:

$2^m=n$

We need to express the following expression in terms of n.

$8^m-4^{-m}$

It's necessary to modify the expression to use the given equivalence.

Recall $8=2^3 \text{ and }4 = 2^2$ . Thus:

$(2^3)^m-(2^2)^{-m}$

Applying the property:

$(2^m)^3-(2^m)^{-2}$

Substituting the given expression:

$n^3-n^{-2}$

Or, equivalently:

$\mathbf{\displaystyle 8^m-4^{-m}= n^3-\frac{1}{n^{2}}}$

5 0

2 years ago

Help me plssssssssssssssssssss

Firdavs [7]

Answer:

i dont know i swear

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Help and show all work please

Aloiza [94]

Answer:

all my work is in the picture but srsly pls u should make another question with more points... blank tho :( this took a rlly long time, pls?

3 0

3 years ago