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TEA [102]
3 years ago
8

PLS HELP! DUE IN 10 MINS PLS!!!!!!!!!!!!!!!

Mathematics
2 answers:
lana66690 [7]3 years ago
4 0

Answer:

25 metres per second

Step-by-step explanation:

just divide 100 by 4 and you will get the answer.☺️☺️

Gre4nikov [31]3 years ago
4 0

Answer:

25 m/s

Step-by-step explanation:

train a travels at 12.5 m/s and will arrive at 100m in 7s.

train b arrives at the same distance, 100m, in 4s. so that means train b is going at 100m/4s and then simplify that

therefore train b is moving at 25m/s

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what is the product in simplest form state any restrictions on the variable x+​2/​x-​1/​x+​4/​x^​2+​4*​x-​5
ValentinkaMS [17]

When it is simplified it is (\frac{(x+2)(x+5)}{x+4})

1 or 5

5 0
3 years ago
What is 710,200 written in word form
Julli [10]
<span> For this case we have the following number: 
 710200
 We are going to decompose this number as the sum of three numbers:
</span> 710200 = 700000 + 10000 + 200&#10;
<span> Let's now write each number:
 70000: seven hundred thousand
 10000: ten thousand
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8 0
3 years ago
Someone please help.
vitfil [10]

Answer:

not correct

tan 60 = x / 2

square root(3) = x / 2

x = 2 * Square root(3)

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4 0
3 years ago
What is the circumference of a circle with a diameter of 14 cm
alex41 [277]

Answer:

C≈43.98cm

Step-by-step explanation:

C=2πr

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6 0
3 years ago
Solve the equation. x2 18x 81 = 25<br> a. 14, 4<br> b. –4, –14<br> c. 14, –14<br> d. –4, 4
Snowcat [4.5K]

Answer:

The answer is the option B

-4,-14

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}+18x+81=25  

x^{2}+18x+56=0  

so

a=1\\b=18\\c=56

substitute in the formula

x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}

x=\frac{-18(+/-)\sqrt{100}} {2}

x=\frac{-18(+/-)10} {2}

x1=\frac{-18+10} {2}=-4

x2=\frac{-18-10} {2}=-14

7 0
3 years ago
Read 2 more answers
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