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3 years ago

A ball begins rolling down a hill. after 5 seconds, its velocity is 10 meters per second. what is the acceleration of the ball?

Mathematics

2 answers:

egoroff_w [7]3 years ago

8 0

Answer:

2m/s/s

Step-by-step explanation:

It was 0 m/s/s before, and now it is 10 / 5 = 2 m/s/s

Hatshy [7]3 years ago

8 0

Answer:

nce

Step-by-step explanation:

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Roberto needs 6 cookies and 2 brownies for every 4 plates he makes for a bake sale. Drag cookies and brownies into the box to sh

ch4aika [34]

6 cookies for every 4 plates....6/4 = 1.5 cookies per plate
2 brownies for 4 plates.....2/4 = 0.5 brownies per plate

for 10 plates...
1.5(10) = 15 cookies <==
0.5(10) = 5 brownies <==

5 0

3 years ago

2 1/5 + 6 4/5 =? 6 5/12 - 2 1/12 =?

vodka [1.7K]

2 1/5 + 6 4/5 = 9 6 5/12 - 2 1/12 = 4.3 11 8/9 + 4 1/3 = 16.2 7 1/6 - 5 3/4 = 1.41
11/18 + 6 1/10 = 6.71 15 1/3 - 2 5/8 = 12.7083

8 0

4 years ago

Given: △ABC, AB=5 sqrt 2 m∠A=45°, m∠C=30° Find: BC and AC will give brainliest!!! By the way the answer is not 5 and 3.66

Makovka662 [10]

Answer:

Therefore,

$BC=a=10\ units\\\\AC=b=13.66\ units$

Step-by-step explanation:

Consider a Δ ABC with

m∠ A = 45°

m∠ C = 30°

AB = c = 5√2

To Find:

BC = a = ?

AC = c = ?

Solution:

Triangle sum property:

In a Triangle sum of the measures of all the angles of a triangle is 180°.

$\angle A+\angle B+\angle C=180\\\\45+30+\angle B=180\\\ttherefore m\angle B =180-75=105\°$

We know in a Triangle Sine Rule Says that,

In Δ ABC,

$\frac{a}{\sin A}= \frac{b}{\sin B}= \frac{c}{\sin C}$

substituting the given values we get

$\frac{a}{\sin 45}= \frac{b}{\sin 105}= \frac{5\sqrt{2} }{\sin 30}$

∴ $\frac{a}{\sin 45}= \frac{5\sqrt{2} }{\sin 30}\\\\a=\sin 45\times \frac{5\sqrt{2} }{\sin 30}\\\\a=\frac{1}{\sqrt{2} }\times \frac{5\sqrt{2} }{0.5} \\\\\\a=\frac{5}{0.5} =10\\\therefore BC = a = 10\ units$

Similarly for 'b',

$\frac{b}{\sin 105}= \frac{5\sqrt{2} }{\sin 30}\\\frac{b}{0.9659}= \frac{5\sqrt{2} }{0.5}\\\\b=0.9659\times \frac{5\sqrt{2} }{0.5}\\\\b=\frac{6.8301}{0.5} \\\\b=13.66\\\therefore AC = b =13.66\ units\\$

Therefore,

$BC=a=10\ units\\\\AC=b=13.66\ units$

8 0

3 years ago

Factor each expression 8 16 =

dalvyx [7]

Since they are just next to each other ill take it multiplication and that would be 128 if its not let me know and ill correct it

8 0

4 years ago

On a number line 8.63 would be located... choose all answers that make the statement true

Genrish500 [490]

Answer:

b and c

Step-by-step explanation:

because they are correct

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3 years ago