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
umka21 [38]
3 years ago
14

42 less than the product of 28 and an unknown number is 154. What is the value of the unknown number?

Mathematics
1 answer:
kap26 [50]3 years ago
6 0
(28 * x) -42 = 154
28x - 42 = 154
28x = 196

the unknown number is 7

You might be interested in
Help Please.. Write out mixed decimals using words.
Tatiana [17]
Twenty point twelve
ten point fourhundred and two
6 0
3 years ago
A boat is heading towards a lighthouse,
larisa86 [58]

Answer: 920.3 ft

Step-by-step explanation:

\tan 7^{\circ}=\frac{113}{x} \\ \\ x(\tan 7^{\circ})=113 \\ \\ x=\frac{113}{\tan 7^{\circ}} \approx \boxed{920.3 \text{ ft}}

4 0
1 year ago
(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos2x
Aliun [14]
As

\tan x=\dfrac{\sin x}{\cos x}
\cot x=\dfrac{\cos x}{\sin x}

we have

\sin x(\tan x\cos x-\cot x\cos x)=\sin x\left(\sin x-\dfrac{\cos^2x}{\sin x}\right)=\sin^2x-\cos^2x

Recalling that \cos2x=\cos^2x-\sin^2x, we end up with

-\cos2x=1-2\cos2x
1=\cos2x
\implies2x=2n\pi

(where n is any integer)

\implies x=n\pi
5 0
3 years ago
At 11:55 p.m., Thomas ties a weight to the minute hand of a clock. The clockwise torque applied by the
ryzh [129]

Answer:

  T(t) = 3sin((t-5)π/30)

Step-by-step explanation:

5 minutes after Thomas ties it on, the torque is zero and increasing. So, the sine function is shifted right 5 minutes. The maximum value is 3, so that is the multiplier of the sine function. The period is 60 minutes, so the coefficient of t is (2π/60) = π/30. The function you want is ...

  T(t) = 3sin((t-5)π/30)

7 0
3 years ago
Ch. 6 Challenge
Tju [1.3M]
36= 12.5% because 25%+62.5%= 87.5%

So 100%-87.5%=12.5%

87.5%-12.5%= 75%

36+36=72=25%

72+72+72+72= 288 = 100%

So the total number of pages in the magazine is 288
7 0
3 years ago
Other questions:
  • What is the answer of 3[4(2³)-5²+7(8+4²)-16]?
    7·1 answer
  • 100 points please answer!
    5·2 answers
  • What is the lower quartile of the data set 4,10,10,14,4,25,15,22,16,10
    15·1 answer
  • What value is equivalent to (3^6)^3?
    15·2 answers
  • Factoring trinomials: 8)-2x2 + 8x + 10 *
    14·2 answers
  • Need help solving for X
    15·1 answer
  • I neeed help with this problem please
    8·1 answer
  • What is the RANGE of the following graph?<br> y=-x2- 2x - 5<br> 2
    15·2 answers
  • · Alycia needs to divide the total amount
    14·2 answers
  • 2x - 3v = - 19<br> 5x + 2v = - 19<br><br> Solve the system using elimination. The solution it (x,y)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!