Can someone pls help me with these!!!!

Mathematics

1 answer:

aliya0001 [1]2 years ago

8 0

Answer:

I hope this helps, sorry for my hand writing

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The width is 7 and the diagonal is 25 what is the height

Korvikt [17]

The height is 24.

We can use Pythagorean’s Theorem: a^2+b^2=c^2

substituting values we get:

a^2+7^2=25^2

Solving we get:
a^2+49=625
a^2=576
a=24.

So the height is 24.

Hope this helps!

8 0

3 years ago

At 8am,Ming Wei started travelling from Town A to Town B.At 8:40am, Ali started travelling from Town B to Town A.Mingwei's speed

Vesnalui [34]

Let's write some equations.

Mingwei's distance from Town A after $x$ hours from 8:00 is $45x$ .

Ali's distance from Town B after $x$ hours is $30x-20$ , since he doesn't start walking for 40 minutes.

When Mingwei's distance is twice Ali's, they've met up (since their distance from Town A is twice their distance from Town B).

So, this gives $45x=60x-40$ , so $15x=40$ , so $x=\frac{40}{15} = \frac{8}{3}$ , so the time is 10:40.

After $\frac83$ hours, Mingwei has traveled $45 * 8 / 3 = 120$ kilometers while Ali has traveled sixty, so the distance between the towns is $180$ kilometers.

7 0

3 years ago

Write an expression without exponent that is equivalent to 2 to 3rd power nd 4 to the 3rd power

IceJOKER [234]

Answer:

8 and 64

Step-by-step explanation:

$2^3$ and $4^3$