Solve the equation 6-x-x=18 A. -6 B. 6 C. 9 D. -9

Solve the following equation:

stealth61 [152]

Answer: Y=1/8

Slope m=0, b =1/8

Step-by-step explanation:

8 0

2 years ago

3. Two cars are parked, 150m apart, and on opposite sides of a building. A camera on the top of the building rotates and can vie

allsm [11]

Answer:

The building is 61.5 m tall

Step-by-step explanation:

The image below is a diagram where all the given distances and angles are shown. We have additionally added some variables:

h = height of the building

a, b = internal angles of each triangle

x = base of each triangle

The angles a and b can be easily found by subtracting the given angles from 90° since they are complementary angles, thus:

a = 90° - 37° = 53°

b = 90° - 42° = 48°

Now we apply the tangent ratio on both triangles separately:

$\displaystyle \tan a=\frac{\text{opposite leg}}{\text{adjacent leg}}$

$\displaystyle \tan 53^\circ=\frac{150-x}{h}$

$\displaystyle \tan 48^\circ=\frac{x}{h}$

From the last equation:

$x=h.\tan 48^\circ$

Substituting into the first equation:

$\displaystyle \tan 53^\circ=\frac{150-h.\tan 48^\circ}{h}$

Operating on the right side:

$\displaystyle \tan 53^\circ=\frac{150}{h}-\tan 48^\circ$

Rearranging:

$\displaystyle \tan 53^\circ+\tan 48^\circ=\frac{150}{h}$

Solving for h:

$\displaystyle h=\frac{150}{\tan 53^\circ+\tan 48^\circ}$

Calculating:

h = 61.5 m

The building is 61.5 m tall

5 0

3 years ago

Please answer NO LINKS

777dan777 [17]

Answer:

try 2640 if thats not it then i did my math wrong

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Compute the total cost per year of the following pair of expenses. Then complete the sentence: On an annual basis, the first s

Mamont248 [21]

Answer: The first set of expenses is 69.47% of second set of expenses.

Step-by-step explanation:

Since we have given that

Amount spend by Maria on lottery tickets every week = $21

Amount spend by Maria on food every month = $131

so, Amount spend by Maria on lottery in a year would be

$21\times 52=\$1092$

Amount spend by Maria on food in a year would be

$131\times 12=\$1572$

So, the first set of expenses is what % of the second set of expenses.

So, the required percentage would be

$\dfrac{1092}{1572}\times 100\\\\=69.47\%$

Hence, the first set of expenses is 69.47% of second set of expenses.

6 0

4 years ago

Find the value of x explain how you got your answer

aliya0001 [1]

Answer:

step 1: x+50+4x=90

the angle of a right-angled triangle is 90 degrees, therefore if we add everything together ,we could work out what x is.

step 2: x+50+4x=90

x+4x=50

5x=50

x=10

then you solve the equation, x is 10

4 0

3 years ago