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
Alika [10]
2 years ago
12

I need help please!!!

Mathematics
1 answer:
Setler79 [48]2 years ago
4 0
Do you need help with the whole worksheet ?
You might be interested in
Two sides of a triangle are two consecutive number, whose area is 17.5cm². Find the numbers
AveGali [126]

Answer:

The numbers associated with the triangle are 5.437 and 6.437 centimeters, respectively.

Step-by-step explanation:

Two numbers are consecutives, when their difference is equal to 1. The area of the triangle is determined by the following formula:

A = \frac{1}{2}\cdot n \cdot (n+1)

A = \frac{1}{2}\cdot (n^{2}+n)

A = \frac{n^{2}}{2}+\frac{n}{2}

n^{2}+n = 2\cdot A

Where n is the shortest length of the triangle, measured in centimeters.

And we get the following second-order polynomial:

n^{2}+n -2\cdot A = 0 (1)

If we know that A = 17.5\,cm^{2}, then the shortest length of the triangle is:

n_{1} = 5.437\,cm and n_{2} \approx -6.437\,cm

Since length is a positive variable, the only possible solution is:

n\approx  5.437\,cm

Then, the numbers associated with the triangle are 5.437 and 6.437 centimeters, respectively.

6 0
2 years ago
Define the variables and write a system of equations to represent the given situation do not solve
Kaylis [27]

Answer:  28x  + 15y = 131   and x + y =  7   where x is the number of Dress shirt and y is the number of T-shirt.

Step-by-step explanation:

We will represent the number of Dress shirt he bought by x and we will represent the number of T-shirt he bought by y.

We know that he spent 131 so the cost of each dress shirt plus the cost of each T-shirt has to equal  131.  Also, he bought 7 total shirts so x plus y has to equal 7.

28x  + 15y = 131  

x + y =  7

Note: it says don't solve so I didn't solve but if you want to solve use these equations.

4 0
3 years ago
Combine the like terms to create an equivalent expression. 7k - 3k + 11
Semenov [28]
I believe the answer is 4k + 11
6 0
3 years ago
A luxury liner leaves a port on a bearing of 110 degrees and travels 8.8 miles. It then turns due west and travels 2.4 miles. Ho
myrzilka [38]

Answer:

Distance= 6.6 miles

Bearing= N 62.854°W

Step-by-step explanation:

Let's determine angle b first

Angle b=20° (alternate angles)

Using cosine rule

Let the distance between the liner and the port be x

X² =8.8²+2.4²-2(8.8)(2.4)cos20

X²= 77.44 + 5.76-(39.69)

X²= 43.51

X= √43.51

X= 6.596

X= 6.6 miles

Let's determine the angles within the triangle using sine rule

2.4/sin b = 6.6/sin20

(2.4*sin20)/6.6= sin b

0.1244 = sin b

7.146= b°

Angle c= 180-20-7.146

Angle c= 152.854°

For the bearing

110+7.146= 117.146

180-117.146= 62.854°

Bearing= N 62.854°W

8 0
3 years ago
Find the common ratio and the next term for the sequence shown. Express your answers as fractions or as decimals.
Cerrena [4.2K]
The common ratio of the sequence is calculated by dividing the second term by the first term or dividing the third term by the second term. That is,
                               r = 250 / 333 = 0.75
or                            r = 187 / 250 = 0.748 = 0.75
To get the next term, we multiply 187 by 0.75 giving us an answer of 140.25 or 141. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • Approximately how many centiliters are in 3 quarts? Round answer to the nearest unit.
    6·2 answers
  • What is the surface area of the cube? Drag and drop the correct surface area to match the cube. cube with edge length = 3.2 m 12
    10·1 answer
  • For every dollar increase in the price of music CDs sold by a record label, the demand for the CDs drops by 100. However, 4,000
    12·1 answer
  • The path of a satellite orbiting the earth causes it to pass directly over two tracking stations A and 8, which are 60 mi apart.
    13·1 answer
  • Can someone help me out with this question please :)
    14·1 answer
  • The sum of two numbers times 3
    5·1 answer
  • Which is the best example of a strong conclusion? In closing, I’ll just say that they are great animals. They don’t make much no
    11·1 answer
  • Thomas earns 15 per hour if he recurved a 10% per hour pay increase how much does Thomas now make per hour
    9·1 answer
  • I don't know how to do this can someone help​
    10·1 answer
  • Sheila earns a 1.5% commission as a salesperson. She sold a bike for $200.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!