1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
weqwewe [10]
3 years ago
7

I think of a number, subtract 2 and multiply it by 5. this gives me the same answer as when I take 7 from the number and treble

it. what is much number?
Mathematics
1 answer:
Darya [45]3 years ago
8 0
30...? i have no idea
You might be interested in
Write the number with the same value as 32 tens
mel-nik [20]
The number with the same value as 32 tens is 320.
5 0
3 years ago
A sign standing 6 feet tall is situated 18 feet away from a flag pole. at a certain time of day the sign's shadow is 3 feet long
alexdok [17]
Observe attached picture.

On picture we have:
A = height of flagpole = x ft
B = length of flagpole's shadow = 24 ft
C = height of sign = 6 ft
D = length of sign's shadow = 3 ft

When we draw a picture representing this problem we can also add another line marked in red. This way we can see that we have two right-angle triangles. We can see that both have same angle marked with α.

We can apply trigonometry rules to find height of flagpole.

From small triangle containing sign we can find tangens function:
tan \alpha = \frac{C}{D}
Similarly we can do for large triangle containing flagpole:
tan \alpha = \frac{A}{B}

We see that these two equations have same left sides. This means that their right sides must also be same:
\frac{C}{D} = \frac{A}{B}
We can solve for A:
CB=AD \\ A= \frac{CB}{D}  \\ A= \frac{6*24}{3}  \\ A=48 ft

Height of flagpole is 48 feet.

8 0
3 years ago
Round to the nearest half 6.385
iragen [17]

Answer:

6.5

Step-by-step explanation:

I hope you have a great day!!

3 0
3 years ago
Find the exact value of sin(7pi/8)
suter [353]

Answer:2.74889357189

Step-by-step explanation:

3 0
2 years ago
A dolphin is 42 feet underwater and ascends at a constant rate for 14 seconds until it reaches the surface. Identify and interpr
Cloud [144]
Ok so, based on the graph lets say that x = seconds and  y = depth of dolphin. the interception in both points is when they are at 0 i.e when x is equals 0 and y equals 0. So At 0 seconds, the dolphin is 42 feet below the surface. So we say that x = 0, y = -42 and then the y intercepts = -42 so the point of interception is(0 (seconds),-42(depth of the dolphin)) When the clock says it's 14 seconds, the dolphin is even with the surface (0 below the surface this time). So we say that x = 14, y = 0. In this case The x intercept = 14 (14,0). But we need to calculate The slope with the formula= (y2 - y1)/(x2 - x1) = 42/14 = 3. Therefore, the formula for this line is y = 3x - 42.
3 0
3 years ago
Other questions:
  • Jack bought a car for $29,000. He sold it for $10,000 3 years later. What is the percentage loss that Jack made?
    8·1 answer
  • !!HHEELLPP!! Which shows the graph of the solution set of x + 2y > 4? Image for option 1 Image for option 2 Image for option
    11·2 answers
  • A model rocket is fired from the ground at time t=0, and it’s height is given in cm by the formula h=-490t^2 +1470t where t is m
    8·1 answer
  • Tara is buying a shirt and a hat at the mall. The shirt cost $31.67 and if the hat cost $19.81. If she gave the sales clerk $100
    8·2 answers
  • What is the factor expression of -20a-divided by 12b
    10·1 answer
  • ) The point Q15, 1) is rotated 270° clockwise around the origin. What are the coordinates
    11·1 answer
  • What is the average acceleration during the time interval 0 to 10 seconds
    9·1 answer
  • The bill is $62.78 the tax on the bill is 8% how much tax is owed
    14·2 answers
  • PLS HELP ASAP, given angle m ABD is a straight angle.
    9·2 answers
  • Define then compare and contrast diverges and converges.​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!