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
nydimaria [60]
3 years ago
6

-3x + 7y = -1 - 2x + 5y=0

Mathematics
1 answer:
Talja [164]3 years ago
6 0
(X,Y) = (9/13 , 2/13)
You might be interested in
Find the area, round to the nearest tenth if necessary.
Strike441 [17]

Answer:

108 ft squared.

Step-by-step explanation:

The figure is made up of a triangle and a square.

The area of a triangle is (1/2)*b*h. The height of the triangle is 6 ft and the base is 9 ft, since the triangle shares a side with the square. Since all sides of the square are equal we know that the line that is shared by the triangle and the square must also be 9ft.

Area of the triangle: (1/2)*9*h = 27 Square feet

To find the area of a square you multiply b*h or sides squared

Area of the square: 9*9 = 81 squared feet

<em>Finally, you have to add the two areas together to get the overall area.</em>

<em />

So, 27  Feet Squared + 81 Feet Squared = 108 Feet Squared

4 0
3 years ago
ANSWER ASAP PLEASE
ruslelena [56]

Answer:

jim is correct, x <em>does</em> equal 7°. justify your answer by putting seven back into the equation. it gives you back that 180 equals 180, therefore it is correct

Step-by-step explanation:

so, all angles of a triangle have to add up to 180;

(15x) + (8x - 11) + (3x + 9) = 180

15x + 8x - 11 + 3x + 9 = 180

add your common numbers

26x - 2 = 180

add 2

26x = 182

divide 26

x = 7

put it back into the equation

15(7) + 8(7) - 11 + 3(7) + 9 = 180

180 = 180

3 0
3 years ago
Hello, I do not anderstand this at all. I have been working on radicals and stuff, but this goes way above my head. Please help.
liraira [26]

Answer:

x = \frac{5}{7}

Step-by-step explanation:

We can start simplifying this equation by expanding the parenthesis and cross multiplying.

(7^x)^4 = \frac{7^2 * 7^3}{7^{3x}} = \\\\\\7^{4x} = \frac{7^5}{7^{3x}}\\\\\\7^5 = 7^{7x}\\\\\\

The exponent 5 and 7x are equal:

\longmapstoDivide both sides by 7

5 = 7x\\\\x = \frac57

-Chetan K

6 0
3 years ago
Read 2 more answers
What is one possible solution for x? 2x2=8<br> 8<br><br> -2<br><br> 6<br><br> 9
Alla [95]

Answer:

you are going to say 2(2) ×2

then 4×2=8

4 0
3 years ago
Andrew and Elena knew that after 28 days they would have 2^28 coins, but they wanted to find out how many coins that actually is
kiruha [24]

Both Andrew and Elena are wrong. The actual value of 2^28 equals 268,435,456.

Step-by-step explanation:

Elena was right when she said exponents mean repeated multiplication but she accidentally calculated the value of 28^2 instead of 2^28. 2^28 means that the number 2 should be multiplied with itself for 28 times.

2^2 means 2 multiplied by 2 equals 4. 2^3 means 2 multiplied by 2 and then multiplied by 2 again which equals 8. Similarly, if you multiply 2 with itself 28 times you will get a value of 268,435,456 (two hundred and sixty-eight million, four hundred and thirty-five thousand, four hundred and fifty-six). So Andrew and Elena will have 268,435,456 coins after 28 days.

5 0
4 years ago
Other questions:
  • Trigonometric Identities and Applications plz help
    11·1 answer
  • What is 14.9 divided by 0.02
    15·1 answer
  • Explain what it means to have 20% more of a given quantity.
    10·1 answer
  • Help me please i need help
    6·1 answer
  • Which are solutions to the equation x3 – 5x2 + 2x + 6 = 0? Round each solution to the nearest tenth. Check all that apply. X = –
    5·2 answers
  • I forgot how to do this (2x+3)(x-1)
    12·1 answer
  • Which graph shows a proportional relationship between the number of hours of renting a snowboard and the total amount spent to r
    15·1 answer
  • What is the scale for the y-axis?<br> 10<br> 5
    6·2 answers
  • What are the ­x-intercepts of the function f(x)=−12(x−3)2+8?
    6·1 answer
  • I NEED HELP!!<br> Select correct answer
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!