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scoundrel [369]
3 years ago
5

Find the exact value of x.

Mathematics
2 answers:
Pavlova-9 [17]3 years ago
6 0
9.89!
Hope this helps!
Tom [10]3 years ago
4 0

Answer:

7\sqrt{2} or 9.89

Step-by-step explanation:

sin45= \frac{7}{x}

x=\frac{7}{sin 45}

x= 7\sqrt{2} or 9.89

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Antwan determines the distance between the points –7 and 2 on a numberline. Maggie determines the difference between the numbers
Orlov [11]

Answer:

Their solutions are related because they both are |9| (the absolute value of 9)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Does anyone know how to solve this? It’s really starting to stress me out.
bekas [8.4K]

Answer:

π − 12

Step-by-step explanation:

lim(x→2) (sin(πx) + 8 − x³) / (x − 2)

If we substitute x = u + 2:

lim(u→0) (sin(π(u + 2)) + 8 − (u + 2)³) / ((u + 2) − 2)

lim(u→0) (sin(πu + 2π) + 8 − (u + 2)³) / u

Distribute the cube:

lim(u→0) (sin(πu + 2π) + 8 − (u³ + 6u² + 12u + 8)) / u

lim(u→0) (sin(πu + 2π) + 8 − u³ − 6u² − 12u − 8) / u

lim(u→0) (sin(πu + 2π) − u³ − 6u² − 12u) / u

Using angle sum formula:

lim(u→0) (sin(πu) cos(2π) + sin(2π) cos(πu) − u³ − 6u² − 12u) / u

lim(u→0) (sin(πu) − u³ − 6u² − 12u) / u

Divide:

lim(u→0) [ (sin(πu) / u) − u² − 6u − 12 ]

lim(u→0) (sin(πu) / u) + lim(u→0) (-u² − 6u − 12)

lim(u→0) (sin(πu) / u) − 12

Multiply and divide by π.

lim(u→0) (π sin(πu) / (πu)) − 12

π lim(u→0) (sin(πu) / (πu)) − 12

Use special identity, lim(x→0) ((sin x) / x ) = 1.

π (1) − 12

π − 12

3 0
3 years ago
A computer valued at $6500 depreciates at the rate of 14.3% per year. Find the value of the computer after 3 years
Norma-Jean [14]
After 3 years the computer will be valued at 3711.5. I'm sure you can round it up to 3712.

Hope this helps :)
6 0
3 years ago
Two consecutive odd negative integers have a product of 483, find the integers ...?
irinina [24]
In order to find this you need to assume that they are declared as X and as X + 2. This makes the formula for calculating it x (x+2)=483, and this, based on the formulas for calculation, equals

 x^2+2x-83=0

From this we can see that a negative X is -23, which when +2 is added results in -21.

3 0
3 years ago
Read 2 more answers
Solve for z. –z + 4= -4
slega [8]

Answer:

-z+4=-4

Step-by-step explanation:

First, you want to move the positive four to the other side to isolate the variable.

-z=-8

You cannot have a negative variable, so divide both sides by 1.

-z/1=-8/1

Your answer would be:

Z=8

Hope this helps!!

6 0
2 years ago
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