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
Gala2k [10]
3 years ago
5

2x squared + 13x - 24 =0

Mathematics
2 answers:
Ket [755]3 years ago
8 0

Answer:  (2x - 3)(x + 8)

Step-by-step explanation:

2x² + 13x - 24 = 0, where is equal ax² + bx + c = 0 form. We get a = 2, b = 13, c = -24.

When a is not equal to 1, we multiply a and c. ac = 2(-24) = -48.

b in the equations means that the sum of two factor of ac is equal to 13. Then we need to find which two factor is add up to 13. In this case, we get -3 and 16.

2x² + 13x - 24 = 0

2x² + 16x - 3x - 24 = 0

2x(x + 8) - 3(x + 8) = 0

(2x - 3)(x + 8) = 0

Assoli18 [71]3 years ago
5 0

Answer: x = -8, x = \frac{3}{2}

Step-by-step explanation:

       This is a quadratic equation since it is in ax² + bx + c = 0 form! We will use the formula and use PEMDAS, the order of operations, while solving as well.

       The quadradic formula, then plugging in to solve:

(<em>please note before the square root is a ± sign. Brainly text editor will not allow me to add it</em>)

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

x = \frac{-13\sqrt{13^{2} -4(2)(-24) } }{2(2)}

x = \frac{-13\sqrt{169 -4(2)(-24) } }{4}

x = \frac{-13\sqrt{169 +192 } }{4}

x = \frac{-13\sqrt{361 } }{4}

Now it breaks into two parts:

x = \frac{-13-19}{4}       and       x = \frac{-13+19}{4}

x = \frac{-32 }{4}                  x = \frac{6}{4}

x = -8, x = \frac{3}{2}

You might be interested in
Find the values of x and y<br> - PLEASEEE HELP
Elden [556K]

Answer:

x= 34°

y=5

Because segments AB and BC are congruent, their corresponding angles (<BAD and <BCD) would also be congruent to each other, meaning that both would be 56°.

Knowing that triangles add up to 180°, the whole triangle (ABC) would then have 2 angles that are 56° and the top angle (<ABC) would be 68°

Splitting those in half ( because <ABD and <CBD are congruent), each would be 34° (thus x=34°)

Looking now at the two separate triangles (ABD and CBD), we can determine that both <BDA and <BDC are 90° (right angles) because 180-34-56=90°.

Therefore, since both triangles have all congruent angles, both triangles are the same! So, since segment AD=5, segment CD would also be 5 (y=5).

4 0
3 years ago
A 6 sided cube with sides labeled 1,2,3,4,5 and 6 is rolled 50 times. What is a good prediction for the number of times 5 will b
Liono4ka [1.6K]

Answer:

A good prediction is that the number 5 will be rolled 8 times

Step-by-step explanation:

Here, we want to get the number of times 5 would occur in a roll of 50

firstly, we need the probability of having a 5 come up

To do this, we have to divide the number of 5’s by the count of possible numbers

We have this simply as 1/6

Now, we have to multiply this by 50

we have this as;

1/6 * 50 = 8.333

This is approximately 8

so we have it that in 50 rolls, we can have the number 5 coming up 8 times

7 0
3 years ago
Sabeena’s pen measures 144 millimeters long. Her pencil measures 18 centimeters long. How many centimeters longer is Sabeena’s p
7nadin3 [17]

Answer:

3.6 cm or 36mm

Step-by-step explanation:

So we know that there are 10 millimetres in a centimetre. So we can convert the 18cm into millimetres to make it easy to subtract

18cm*10=180mm

now take the pencil length subtracted by the length of the pen.

180mm-144mm=36mm  

now if you want the answer in cm, convert it by dividing the answer by 10

36/10=3.6cm

<em>Hope This Helps :)</em>

8 0
3 years ago
Read 2 more answers
Find the sum: 11 + 15 + 19 + .......+ 83
bonufazy [111]

Answer: i dunno what '.......' was suppose to mean but 11 + 15 + 19 + 83 = 128

Step-by-step explanation: b more specific dood -_-

6 0
3 years ago
A circle has a diameter of 5 inches. A square has a side length of 5 inches .what is true about the areas of two figures
Andrews [41]
..................... ....................Idk
7 0
4 years ago
Read 2 more answers
Other questions:
  • What type of number can be written as a fraction a over b, where a and b are integers and b is not equal to zero?
    11·2 answers
  • PLEASE HELP Function Stories You’ve seen how we can use different functions to model real-world situations, and you’ve studied t
    9·1 answer
  • If x=am-an then a equals​
    10·1 answer
  • Chad had $3,370.08 in a savings account with simple interest. He had opened the account with $3,009 exactly 2 years earlier. Wha
    15·2 answers
  • 2x+5y=10<br> x-3y=-6<br> how do i get the point of intersection
    5·1 answer
  • In 1999, there were 9860 Great Danes registered with the American Kennel Club. The number of
    12·1 answer
  • Enter the decimal represented by the shaded square.
    13·2 answers
  • In a unit circle, ø = 2pi radians What is the terminal point?
    14·2 answers
  • A sequence of transformation is applied to a polygon. Select all statements which indicate a sequence of transformations where t
    9·2 answers
  • PLEASE ANSWER ASAP. I'LL GIVE BRAINLIEST
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!