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
IgorLugansk [536]
3 years ago
6

Plz help I’m down bad atm

Mathematics
1 answer:
777dan777 [17]3 years ago
6 0

Answer: Second option, 2^2x+6=2^6

Step-by-step explanation:

You can simplify 4^x+3 by making the 4 into 2^2. By doing this you also multiply the current powers of 4 by 2, giving you (x+3) • 2, furthermore, 2^2x+6.

64 is a power of 2, so just multiply 2 by itself until you get the number you’re looking for and count how many times you do it. Or just type each option, like 2^4, 2^6 into the calculator until you find it.

You might be interested in
What are two fraction equivalent to 9/10​
Anuta_ua [19.1K]
Two fractions equivalent are 18/20 & 27/30
4 0
2 years ago
Using a graphing utility, find the exact solutions of the system. Round to the nearest hundredth and choose a solution to the sy
Margaret [11]

Answer:

Part 1) The exact solutions are

(\frac{-1+\sqrt{21}} {2},4+\sqrt{21})   and  (\frac{-1-\sqrt{21}} {2},4-\sqrt{21})

Part 2) (1.79, 8.58)

Step-by-step explanation:

we have

y=x^{2} +3x ----> equation A

y=2x+5 ----> equation B

we know that

When solving the system of equations by graphing, the solution of the system is the intersection points both graphs

<em>Find the exact solutions of the system</em>

equate equation A and equation B

x^{2} +3x=2x+5\\x^{2} +3x-2x-5=0\\x^{2} +x-5=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2} +x-5=0  

so

a=1\\b=1\\c=-5

substitute in the formula

x=\frac{-1\pm\sqrt{1^{2}-4(1)(-5)}} {2(1)}

x=\frac{-1\pm\sqrt{21}} {2}

so

The solutions are

x_1=\frac{-1+\sqrt{21}} {2}

x_2=\frac{-1-\sqrt{21}} {2}

<em>Find the values of y</em>

<em>First solution</em>

For x_1=\frac{-1+\sqrt{21}} {2}

y=2(\frac{-1+\sqrt{21}} {2})+5

y=-1+\sqrt{21}+5\\\\y=4+\sqrt{21}

The first solution is the point (\frac{-1+\sqrt{21}} {2},4+\sqrt{21})

<em>Second solution</em>

For x_2=\frac{-1-\sqrt{21}} {2}

y=2(\frac{-1-\sqrt{21}} {2})+5

y=-1-\sqrt{21}+5\\\\y=4-\sqrt{21}

The second solution is the point (\frac{-1-\sqrt{21}} {2},4-\sqrt{21})

Round to the nearest hundredth

<em>First solution </em>

(\frac{-1+\sqrt{21}} {2},4+\sqrt{21}) -----> (1.79,8.58)

(\frac{-1-\sqrt{21}} {2},4-\sqrt{21}) -----> (-2.79,-0.58)

see the attached figure to better understand the problem

6 0
3 years ago
What is the final amount if 1015 is decreased by 6% followed by a 19% increase?
sleet_krkn [62]

Answer:

1135.38

Step-by-step explanation:

100%->1015

100-6=94

94%->954.1

--------------------------------------------------

100%->954.1

119%->1135.379

       ≈1135.38

3 0
2 years ago
What is the greatest common factor of 39 and 6
yanalaym [24]

Answer:

the greatest common factor is 3

5 0
3 years ago
Read 2 more answers
2132 plus what equals 2650
Studentka2010 [4]
518 is the answer. **
6 0
3 years ago
Read 2 more answers
Other questions:
  • You roll a dice 100 times a 6 = Gold, 4 &amp; 5 = Silver and 1, 2 &amp; 3 = Bronze.
    5·1 answer
  • The expression c-e, where c stands for the money collected and e stands for the expenses, is used to find the profit from a bask
    11·1 answer
  • A box contains three cards, labeled 1, 2, and 3. Two cards are chosen at random, with the first card being replaced before the s
    6·1 answer
  • How many solutions exist for the system of equations below? 3x+y=18 3x+y=16
    14·2 answers
  • Simplify: –7(x – y – 2z)
    5·1 answer
  • What is a finite set
    9·1 answer
  • (3x-60)° or (x+50)° please help.
    11·1 answer
  • Can someone help me out
    15·2 answers
  • What is the area of trapezoid DEFG with coordinates D(2,3) E(4,3) F(6,1) G(2,1)?
    9·2 answers
  • In the figure, what is the value of a?<br> a<br> 35<br> 48<br> 21
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!