All categories

2 years ago

READ THE QUESTIONS CAREFULLY- AND PLEASE HELP QUICK <3

Mathematics

1 answer:

arlik [135]2 years ago

6 0

Answer:jsdjjadoji

Step-by-step explanation:

You might be interested in

Identify the model that shows 4 items being divided equally among 3 people. How much will each person have?

Anna11 [10]

Answer:

9 because 3 x 4 = to 9

Step-by-step explanation:

8 0

2 years ago

642 x 115 worked out ?

lys-0071 [83]

Answer:

642x115=73830

Step-by-step explanation:

does that help?

8 0

2 years ago

Read 2 more answers

Please help with this

ArbitrLikvidat [17]

Answer:

$c = 10$

Step-by-step explanation:

This can be solved with Pythagreon Thereom.

${a}^{2} + {b}^{2} = {c}^{2}$

Follow the steps below. A and B are the heaight an base, C is they hypotonuese.

${6}^{2} + {8}^{2} = {c}^{2} \\ 36 + 64 = {c}^{2} \\ 100 = {c}^{2} \\ 10 = c$

7 0

2 years ago

Find the area of the polygon.

jolli1 [7]

Answer:

7. 15.5

8. 12

Step-by-step explanation:

Question 7 equation: $\frac{3*1}{2} + \frac{5+2}{2} * 4=1.5 + 3.5 * 4 = 1.5 + 14 = 15.5$ .

Question 8 equation: $(\frac{2*2}{2} * 2) + (\frac{4*2}{2} *2) = 4 + 8 = 12.$

3 0

2 years ago

Suppose you have a water-balloon launcher. The balloon is 3 ft high when it leaves the launcher. Use the equation 0 = ?16t2 + 38

mario62 [17]

Answer:

t = 2.5 s

Step-by-step explanation:

Suppose you have a water-balloon launcher. The balloon is 3 ft high when it leaves the launcher. Its equation is :

$16t^2 + 38.8t + 3 =0$

The above equation is a quadratic equation. The general equation is :

$ax^2+bx+c=0$

Here, a = 16, b = 38.8 and c = 3

The solution of quadratic equation is given by :

$x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}\\\\t=\dfrac{-38.8\pm \sqrt{(38.8)^2-4\times (-16)\times 3} }{2\times (-16)}\\\\t=\dfrac{-38.8+\sqrt{(38.8)^{2}-4\times-16\times3}}{-2\times16}, \dfrac{-38.8-\sqrt{(38.8)^{2}-4\times-16\times3}}{-2\times16}\\\\t=-0.075\ s,2.5\ s$

So, at t = 2.5 s the balloon is in air.

8 0

2 years ago