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4 years ago

HURRY PLEASE

Mathematics

1 answer:

Strike441 [17]4 years ago

4 0

Answer:

n = ≥500

Step-by-step explanation:

They must be able to swim 500 yards or more.

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HELP ME PLEASEEEE!!!!!!!!!!!!

Archy [21]

Answer:

I believe that the answer is B) 90 - 100 minutes.

Step-by-step explanation:

Hope this helps!

6 0

3 years ago

What is the definition for undefined terms ?

Luda [366]

These words are point, line and plane, and are referred to as the "three undefined terms of geometry.
They are undefined because they cannot be defined by using other figures.

4 0

3 years ago

Joe's dad is ordering pizza for Joe and his friends. Joe says that he wants 5/8 of a

stepan [7]

Answer:

First we need to turn the values into decimals

Step-by-step explanation:

5/8 = 0.625

1/2 = 0.50

1/4 = 0.25

Now add the decimal values up which would be 0.625 + 0.50 + 0.25 = 1.375

You can't have 1.375 of a pizza so joe's dad is going to order at the minimum 2 pizzas so that everyone can have their desired amount

4 0

3 years ago

Find the area of an acute triangle with a base of 13 inches and a height of 5 inches.

MArishka [77]

Base=B=13in
Height=H=5in

Area:-

$\\ \rm\hookrightarrow \dfrac{1}{2}BH$

$\\ \rm\hookrightarrow \dfrac{1}{2}(13)(5)$

$\\ \rm\hookrightarrow 65/2$

$\\ \rm\hookrightarrow 32.5in^2$

6 0

3 years ago

A model rocket is launched with an initial upward velocity of 100 ft/s. The rocket's height h (in feet) after t seconds is given

tamaranim1 [39]

$\bf \stackrel{h}{34}=100t-16t^2\implies 16t^2-100t+34=0\\\\\\ 8t^2-50t+17=0
\\\\\\
~~~~~~~~~~~~\textit{quadratic formula}
\\\\
\stackrel{\stackrel{a}{\downarrow }}{8}t^2\stackrel{\stackrel{b}{\downarrow }}{-50}t\stackrel{\stackrel{c}{\downarrow }}{+17}=0
\qquad \qquad 
t= \cfrac{ - b \pm \sqrt { b^2 -4 a c}}{2 a}$

$\bf t=\cfrac{ - (-50) \pm \sqrt { (-50)^2 -4(8)(17)}}{2(8)}\implies t=\cfrac{50\pm \sqrt{2500-544}}{16}
\\\\\\
t=\cfrac{50\pm\sqrt{1956}}{16}\implies t=\cfrac{50\pm\sqrt{4\cdot 489}}{16}\implies t=\cfrac{50\pm\sqrt{2^2\cdot 489}}{16}
\\\\\\
t=\cfrac{50\pm 2\sqrt{489}}{16}\implies t=\cfrac{25\pm \sqrt{489}}{8}\implies t\approx
\begin{cases}
5.88916805\\
0.36083195
\end{cases}$

4 0

3 years ago