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
k0ka [10]
2 years ago
15

7x - 4 and 5x + 4 are the lengths of two of the sides of a rhombus. What is the value of x? If there is not enough information t

o find x, enter 999.​
Mathematics
2 answers:
kati45 [8]2 years ago
6 0

Answer:

x = 4

Step-by-step explanation:

7x - 4 = 5x + 4

7x-4-5x = 5x+4-5x

2x-4 = 4

2x-4+4 = 4 + 4

2x = 8

2x / 2 =  8/ 2

x = 4

Mariulka [41]2 years ago
4 0

Answer:

All the sides of a rhombus are equal and opposite sides parallel and equal.

Therefore by understanding the above we can deduce that:

7x - 4 = 5x + 4

7x - 4 + 4 - 5x = 5x + 4 + 4 - 5x (Separate all the terms with x to go to the other side of the equals sign and do the some for the constants).

7x - 5x + (4 - 4) = (5x - 5x) + 4 + 4

7x - 5x = 4 + 4

2x = 8

2x/2 = 8/2

x = 4

You might be interested in
I think of a number, add seven, then divide by 5. What is the equation
pantera1 [17]
Maybe maybe maybe maybe 2
3 0
2 years ago
Read 2 more answers
Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.950.950, point, 95 pro
bearhunter [10]

The question is incomplete. Here is the complete question:

Samir is an expert marksman. When he takes aim at a particular target on the shooting range, there is a 0.95 probability that he will hit it. One day, Samir decides to attempt to hit  10 such targets in a row.

Assuming that Samir is equally likely to hit each of the 10 targets, what is the probability that he will miss at least one of them?

Answer:

40.13%

Step-by-step explanation:

Let 'A' be the event of not missing a target in 10 attempts.

Therefore, the complement of event 'A' is \overline A=\textrm{Missing a target at least once}

Now, Samir is equally likely to hit each of the 10 targets. Therefore, probability of hitting each target each time is same and equal to 0.95.

Now, P(A)=0.95^{10}=0.5987

We know that the sum of probability of an event and its complement is 1.

So, P(A)+P(\overline A)=1\\\\P(\overline A)=1-P(A)\\\\P(\overline A)=1-0.5987\\\\P(\overline A)=0.4013=40.13\%

Therefore, the probability of missing a target at least once in 10 attempts is 40.13%.

6 0
2 years ago
Read 2 more answers
David can jog 4 miles in. 75 minutes.what is David’s jogging rate per hour?
weeeeeb [17]

Answer: 3.2 miles

Step-by-step explanation: Trust me bro. 1000% right

6 0
3 years ago
Plzzzz help!!!!!!!!!!!!!
sertanlavr [38]
The answer to the question I believe is C
7 0
3 years ago
Read 2 more answers
Solve 10 -4+5n<br> Σ<br> n=2
valentinak56 [21]

Answer: 16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • An inlet pipe can fill a swimming pool in 9 hours and an outlet pipe can empty the pool in 12 hours. Through an error, both pipe
    14·1 answer
  • Is ten a perfect square
    13·1 answer
  • A consulting firm submitted a bid for a large research project. The firm's management initially felt there was a 60/40 chance of
    14·1 answer
  • Micah has the coins shown below.
    13·2 answers
  • Mr.Frazer needs Mr. Freezer needs to grade 100 Majid he graded 35 tests on Monday afternoon spending six minutes per test he gra
    6·1 answer
  • Solve sin θ +1 = cos2 θ on the interval 0 less than or equal to θ less than 2pi
    10·1 answer
  • Express 6.72x104 as a basic numeral.
    8·1 answer
  • 2000 plus 300 plus 65
    6·2 answers
  • A washing machine is filling up with water at a constant rate. The rate is Three-fourths of a gallon in StartFraction 1 over 5 E
    14·2 answers
  • How do I find the variable?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!