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olga55 [171]
4 years ago
7

Please also explain your answer!

Mathematics
1 answer:
FromTheMoon [43]4 years ago
7 0
X² + 64 = 0
⇒ x² = -64
But x² can not be negative. So there is no answer
--------------------------------------------------------------

area of square = 144x²
side = √144x² = 12x
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HELPPP PLEASE 20 POINTS<br> What is the area of this face?
MrMuchimi

Answer:

28

Step-by-step explanation:

Calcule a area comple

10*4=40

6*2=12

40-12=28

subtraia o recorte

8 0
4 years ago
Find the value of x
marin [14]

Answer:

x=14

Step-by-step explanation:

The given triangle is a right triangle, meaning it is a triangle with a right angle, this is indicated by the box around one of the angles. When given a right triangle, one can use the right triangle trigonometric ratios. These ratios describe the relationship between an angle in a right triangle, and the sides in a right triangle. Such ratios are as follows,

sin(\theta)=\frac{opposite}{hypotenuse}\\\\cos(\theta)=\frac{adjacent}{hypotenuse}\\\\tan(\theta)=\frac{opposite}{adjacent}

Bear in mind that the way one names the sides, in the sense of (opposite or adjacent) will change based on the angle one uses to describe the triangle. However, the hypotenuse is the same no matter the angle, as the hypotenuse is the side opposite the right angle.

In this case, one is given one of the angles, and the side opposite the angle. One is asked to find the hypotenuse of the triangle. One can use the sine (sin) ratio to achieve this.

sin(\theta)=\frac{opposite}{hypotenuse}

Substitute,

sin(30)=\frac{7}{x}

Inverse operations,

x=\frac{7}{sin(30)}

Simplify,

x=14

5 0
3 years ago
What two equations do I use?
Jobisdone [24]

Let...

l=length

w=width

Because we know that the perimeter is 90, we can make this equation...

2l+2w=90

Because we know that the length is 5 feet less than 4 times the width, we can make this equation...

l=4w-5

We can solve this system through substitution...

2(4w-5)+2w=90

8w-10+2w=90

10w=100

w=10 ft

l=4(10)-5=35 ft

5 0
3 years ago
NEED HELP ASAP
IrinaVladis [17]

Answer:

B sin 9° = cos 81°

As both values is

0.156434465

7 0
3 years ago
Read 2 more answers
Convert 16/3 into a decimal form
Angelina_Jolie [31]

Answer:

16/3 in decimal form = 3 ˙ 5.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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