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Zarrin [17]
3 years ago
13

HELP ASAP !!

Mathematics
2 answers:
Norma-Jean [14]3 years ago
8 0
Here we have a negative  times a positive number. In this case The answer is always negative.

-1.15 * 3.2 = - 3.68
kaheart [24]3 years ago
8 0

Answer:

The answer is -3.68.

Step-by-step explanation:

Given expression is :

(-1.15) times 3.2

Now, we know that when a positive number is multiplied by a negative number, the result is always negative. It does not matter in which order the numbers are in that you are multiplying, the answer is always a negative number.

So, (-1.15)\times3.2=-3.68

Hence, the answer is -3.68.

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Maybe the second one or third one
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Kazeer [188]

Answer:

x^{2} - 5x - 24

Step-by-step explanation:

( x + 3 )( x - 8 ) =

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4 0
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Classify the model as exponential growth or exponential decay. Identify the growth or decay factor AND the percent of increase o
sweet-ann [11.9K]
See also brainly.com/question/8975313

The growth factor is 2.

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5 0
3 years ago
A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an
Nataly [62]

Answer:

The distance between the walls is 70 m.

Step-by-step explanation:

Given: A source of laser light is at point A on the ground between two parallel walls BE and CD . The walls are perpendicular to the ground that is

BE ⊥ ED and CD ⊥ ED

AB is a ray of light which strikes the wall on the left at point B which is 30 meters above the ground. that is BE = 30 m

AC is a ray of light which strikes the wall on the right at point C. The length of AC = 80 meters.

The ray AB makes an angle of 45 degrees with the ground that is m∠BAE = 45°

The ray AC makes an angle of 60 degrees with the ground that is m∠CAD = 60°

As shown is figure attached below.

WE have to find the distance between the walls that is Length of ED

Length of ED = EA + AD

Consider the Δ AEB,

Using trigonometric ratio,

\tan\theta=\frac{perpendicular}{base}

Here \theta=45^{\circ} , perpendicular = 30 m  and base we can find.

thus,

\tan 45^{\circ}=\frac{30}{EA}

We know \tan 45^{\circ}=1

thus, EA =  30 m

Consider the Δ AEB,

Using trigonometric ratio,

\cos\theta=\frac{base}{hypotenuse}

Here \theta=60^{\circ} , hypotenuse = 80 m  and base we can find.

thus, \cos 60^{\circ}=\frac{base}{80}

We know, \cos 60^{\circ}=\frac{1}{2}

thus, Base = 40 m

AD = 40 m

Thus, the distance between the walls that is the length of ED = 30 + 40 = 70 m

4 0
3 years ago
Emma and her friend arrive in Langdale and decide to go for a coffee. The owner of the café is giving a free cupcake to every 4t
nasty-shy [4]
If the owner is giving a free cupcake to every 4th customer. Then the easiest way to do this is to follow the 4 times table: 4, 8, 12, 16, 20

So the answer is No, Emma will not be receiving a free cupcake as she is the 17th customer and doesn't fall into the 4th customer pattern.
5 0
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