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
Free_Kalibri [48]
2 years ago
8

Which shows the factored form of x2 – 12x – 45?

Mathematics
1 answer:
lapo4ka [179]2 years ago
3 0

Answer:

(x – 3)(x + 15)

Step-by-step explanation:

Consider the form x2 + bx + c.  Find a pair of integers whose product is  c and whose sum is  b. In this case, whose product is  -45 and whose sum is 12.

Write the factored form using these integers.

(x – 3)(x + 15)

You might be interested in
Gonzalo observa que el grifo del lavabo de un año después el goteo se produce una velocidad de una gota por segundo y cada gota
Sergio [31]

Answer:

La familia de Gonzalo ha despilfarrado 15,768 litros de agua.

Step-by-step explanation:

Dado que Gonzalo observa que el grifo del lavabo gotea luego de un año, y el goteo se produce una velocidad de una gota por segundo y cada gota contiene 0.5ml de agua, para determinar cuántos litros de agua ha despilfarrado la familia de Gonzalo desde que ellos se dieron cuenta de la avería se debe realizar el siguiente cálculo:

1 año = 365 dias x 24 horas x 60 minutos x 60 segundos

0.5 x 60 x 60 x 24 x 365 = X

30 x 60 x 24 x 365 = X

1800 x 24 x 365 = X

43,200 x 365 = X

15,768,000 = X

15,768,000 / 1000 = X

15,768 = X

Por lo tanto, la familia de Gonzalo ha despilfarrado 15,768 litros de agua.

5 0
2 years ago
Correct answer gets 5 stars and brainliest
Katena32 [7]

Answer:

Step-by-step explanation:

C(3 , -2)   & D (7, -8)

Distance = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

CD = \sqrt{(7-3)^{2}+(-8-(-2))^{2}}\\\\=\sqrt{(7-3)^{2}+(-8+2)^{2}}\\\\=\sqrt{(4)^{2}+(-6)^{2}}\\\\=\sqrt{16+36}\\\\=\sqrt{52}\\\\

≈ 7.2 units

5 0
3 years ago
Explain the steps you would take to find the area of the following composite shape. (Use 3.14 for Tr.)
USPshnik [31]
The first composite shape we would need to find is the rectangle. We would use the formula length multiplied by width. The second composite shape is a hemisphere. The area of a hemisphere is Pi multiplied by the radius squared and then divide it by 2. To find the area of both of these figures, add up the area for each one and then you will get the
area of both.
4 0
2 years ago
The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. Wha
valkas [14]
The answer is 0.3413 because Explanation:

<span>z=<span><span>x−u</span>σ</span></span>, where <span>u=6 0andσ=10</span>.

Therefore the probability student finish the test between 50 to 60 minutes is,

<span>P<span>(50≤x≤60)</span>=P<span>(<span><span>50−60</span>10</span>≤z≤<span><span>60−60</span>10</span>)</span></span>

<span>P<span>(−1≤z≤0)</span>=P<span>(z≤0)</span>−P<span>(z≤−1)</span></span>

<span>=0.5000−0.1587=<span>0.3413</span></span>

3 0
3 years ago
Find the value of x so that the function has the given value.<br><br> t(x)=-4x-5 <br><br> t(x)=3
Sveta_85 [38]

Answer:

x = 8 since 3 × 8 = 24

4 0
2 years ago
Other questions:
  • The coordinates of triangle FGH are F(2, 4), G(5, −9) and H(−3, −4). Which statement proves that triangle FGH is a right triangl
    10·2 answers
  • Write y = -0.4x + 0.9 in standard form using integers​
    11·1 answer
  • In a certain​ city, the average​ 20- to​ 29-year old man is 69.669.6 inches​ tall, with a standard deviation of 3.23.2 ​inches,
    11·1 answer
  • What is the surface area of the sphere
    13·1 answer
  • PLEASE HELP!!!!!!
    12·2 answers
  • In the past, 35% of the students at ABC University were in the Business College, 35% of the students were in the Liberal Arts Co
    6·1 answer
  • A bakery sold blueberry and apple pies. The ratio of the number of blueberry pies sold to the total number of pies sold is 3 to
    12·1 answer
  • A store owner determined 80% of customers bought a drink and 30% of customers bought a snack. If the store sold 120 snacks that
    13·1 answer
  • Can you please help me​
    13·1 answer
  • Help pls :) 10 points
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!