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3 years ago

Which of the following is the solution to

Mathematics

2 answers:

sleet_krkn [62]3 years ago

7 0

C. would be the best answer, multiply the contents of the parenthesis and then solve for X

OverLord2011 [107]3 years ago

3 0

The answer is O c. x>2

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10. The perimeter of the rectangle below is 30 inches. Find the value of x. 5x X-3

Zigmanuir [339]

The answer is 3. This is because the perimeter is 30 so 5x+5x+x-3+x-3 = 30. Thus you have 12x-6=30 so x = 3

4 0

2 years ago

Please help whats the last meter on 10 will mark brainliest!

densk [106]

Answer:

10000

Step-by-step explanation:

4^2 (100) = 1600

so,

10^2 (100) gives us our answer of 10000

5 0

3 years ago

Hideki buys a skateboard that costs c dollars. After 6.5% sales tax is added, the total cost can be expressed by the expression

natulia [17]

Answer: c(1 + 0.065)

Step-by-step explanation:

3 0

2 years ago

At the movies a bag of popcorn cost $3.50 and a bottle of water coast $2.75. If Madeline has $18 and bought two bottles of water

algol13

Multiple the cost of the water bottle ($2.75) then whatever you answer is, you subtract that from 18. She should have $12.5 left. The most bags of popcorn she could get is 3. Just add $3.50 until it’s closes to the amounts of money she has left.

4 0

2 years ago

A man is standing at a radar base and observes an unidentified plane at an altitude 6000m flying towards the radar base at an an

liubo4ka [24]

Answer:

The speed in of the plane is 115.47 m/sec

Step-by-step explanation:

Given:

Height at which the plane is flying = 6000 m

Angle of elevation at the radar base = 30 Degrees

Angle of elevation at the radar base after one minute = 60 Degrees

To Find:

The Speed of the plane in meter per second = ?

Solution:

Let us use the tangent of the angle to find the distance (d) to a point directly below plane:

when the angle is 30 degrees

$tan(30) = \frac{6000}{d1}$

$d1 = \frac{6000}{tan(30)}$

$d1 = \frac{6000}{0.577}$

d1 = 10392.3 meters

when the angle is 60 degrees

$tan(60) = \frac{6000}{d2}$

$d2 = \frac{6000}{tan(60)}$

$d2 = \frac{6000}{1.732}\\$

d2 = 3464.1 meters

distance travelled by aircraft in 1 min is

=>d1 - d2

=>0392.3 - 3464.1

= 6928.2 m/min

Now converting to m/sec

=> $\frac{6928.2}{60}$

=>115.47 m/sec

4 0

3 years ago