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
Alja [10]
3 years ago
11

Solve the following quadratic equation

Mathematics
1 answer:
zheka24 [161]3 years ago
7 0
The answer is A. x=19 and x=17
You might be interested in
Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy
tia_tia [17]

Answer:

84 ounces of pure gold

Step-by-step explanation:

Jess has 60 ounces of an alloy that is 40% gold. How many ounces of pure gold must be added to this alloy to create a new alloy that is 75% gold?

Pure gold = 100% gold

Let the number of ounces of pure gold = x

Hence, we have the equation

40% × 60 ounces + 100%× x ounces = 75%(60 + x)ounces

= 0.4 × 60 + 1x = 0.75(60 + x)

= 24 + x = 45 + 0.75x

Collect like terms

x - 0.75x = 45 - 24

0.25x = 21

x = 21/0.25

x = 84 ounces

Therefore, we need 84 ounces of pure gold

6 0
3 years ago
Raul is selling coupon books. He started with 50 coupon books and has already won a prize for selling at least 10 coupon books.
Hoochie [10]
The practical domain would be all integers 10 to 50.<span />
4 0
3 years ago
Read 2 more answers
Which function is increasing and has a domain of (1, 0);
marin [14]

Answer:

A: f(t) = log(t-1)+2

Step-by-step explanation:

Hopefully this helps!

7 0
3 years ago
Simplify the following if x = 3 &amp; y = 4:
dusya [7]
The top one is correct …..correct is correct
5 0
3 years ago
Read 2 more answers
Change 290 degrees to radian measure in terms of pi.
Pachacha [2.7K]
So we know that  \pi = 180
So if we multiply 290 by \frac{ \pi }{180} then we can find its radians in terms of pi (if pi is 180 and you divide 180 by 180 you get one so frankly we multiplying by one so we are not breaking any mathematical rules because if you multiply an number by itself then you get back that number right ?

∴  \frac{290}{1} * \frac{ \pi }{180}
    
     simplify by dividing the numerator of the first term and denominator
     of the second term by 10 and then multiplying normally
    
    \frac{29}{1} * \frac{ \pi }{18}
   
∴ 290° in radians in terms of pi =  \frac{29 \pi }{18}

7 0
4 years ago
Other questions:
  • Help on this math Q??
    15·2 answers
  • Line passes (-5, -1) and (10, -7)
    11·2 answers
  • Factor y2 + 5y + 6.<br><br> (y + 6)(y + 1)<br> (y + 2)(y + 3)<br> (y + 4)(y + 2)
    13·1 answer
  • What is 4÷3/5 Options:6 6 2/5 6 2/3 8​
    15·1 answer
  • 1) Find the zero of the polynomial, P(x)=cx+c​
    13·1 answer
  • One who takes money that must be repaid​
    11·1 answer
  • In the figure below, ZAPE and ZEPD are congruent.
    11·1 answer
  • Simplify the expression 6/7÷35/8​
    13·1 answer
  • Compare these fractions by filling in the blank with the appropriate sign. 35 _____ 56
    12·1 answer
  • I don't understand this ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!