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
Mashutka [201]
3 years ago
7

Solve the following system of equations by substitution

Mathematics
1 answer:
den301095 [7]3 years ago
5 0

Answer:

c.  (2, -18)

Step-by-step explanation:

y = -5x - 8

y = 3x - 24

3x - 24 = -5x - 8

8x = 16

x = 2

y = 3x - 24

y = 3(2) - 24

y = 6 - 24

y = -18

Answer: c.  (2, -18)

You might be interested in
SOMEONE PLEASE HELP ME I WILLG IVE EVERYTHING!
Anvisha [2.4K]

Answer:

<h2>AB is around 33.18</h2><h2>BC is around 15.58 </h2>

Step-by-step explanation:

adjacent/hypotenuse is sine:

cos(28 degrees)=29.3/x

cos(28 degrees)*x=29.3

x=29.3/cos(28 degrees)

x=around 33.18

AB is around 33.18

opposite/adjacent is tangent

tan(28 degrees)=x/29.3

tan(28 degrees)*29.3=x

x=tan(28 degrees)*29.3

x=around 15.58

BC is around 15.58

4 0
3 years ago
What is the decimal multiplier to increase by 99%? need it now
krek1111 [17]

Answer:

To work out the multiplier, first add or subtract the percentage from 100, then convert to a decimal. Example: we want to add 20% to £110. To work out the multiplier, add 20 to 100, to get 120, and then change it to a decimal (divide by 100) to get 1.2.

meiabatten191 helped me out on this question too.

3 0
3 years ago
Please help. Free likes
yKpoI14uk [10]
Has to be B other I don't know
4 0
3 years ago
Helppppppp! 15 points!
Vika [28.1K]

{\boxed{\mathcal{\purple{D.\:81}}}} ✅

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

( {3})^{ \frac{11}{5} }  \div  {3}^{ \frac{ - 9}{5} }  \\  \\=(  {3})^{ \frac{11}{5} - ( \frac{ - 9}{5} ) }  \\ \\ = ( {3})^{ \frac{11}{5}   +  \frac{9}{5} }  \\ \\ = ( {3})^{ \frac{11 + 9}{5} } \\ \\  = ( {3})^{ \frac{20}{5} }  \\ \\  = ( {3})^{4}  \\ \\ = ( \: 3 \times 3 \times 3 \times 3 \: ) \\ \\ = 81

<u>Note</u>:-

{a}^{m}  \div  {a}^{n}  =  {a}^{m - n}

\sf\red{(-)\:x\:(-)\:=\:+}

\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}

4 0
3 years ago
Two coplanar lines that are perpendicular to the same line are parallel.
Semenov [28]

Coplanar lines are <u>lines</u> that lie on the same <u>plane</u>.

Theorem: If two <u>coplanar lines</u> are <u>perpendicular</u> to the same  line, then the two lines are <u>parallel</u> to each other.

This theorem is true always, therefore, given statement is true always.

Answer: correct choice is A

3 0
3 years ago
Read 2 more answers
Other questions:
  • Compare the numbers 90,847 69,948
    5·1 answer
  • 22. Find the perimeter of the square:<br> 28
    12·1 answer
  • A circuit contains two switches. The first switch transmits messages correctly 80 percent of the time, and the second switch tra
    11·1 answer
  • An ice sculpture is used as a centerpiece at a banquet. Once the sculpture is removed from the freezer it begins to melt.The hei
    8·1 answer
  • Helppppppppppppppppppppppppp
    7·1 answer
  • Which is greater -6 or 3
    14·1 answer
  • Emily sold 99 boxes of cookies for a fundraiser. If she sold 60% of the total boxes of cookies sold for the fundraiser, how many
    5·1 answer
  • HELP PLZ ALMOST DONE!!!
    15·2 answers
  • Volume of the cylinder with diameter of 8mm and height of 8mm
    10·1 answer
  • In the United States, how many children under age 11 studied a language other than English in school
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!