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
Mars2501 [29]
2 years ago
8

Which value c makes the expression x² + 2x + c a perfect square trinomial?

Mathematics
1 answer:
Ilia_Sergeevich [38]2 years ago
4 0

Answer:

<u>A</u>

Step-by-step explanation:

Taking c = 1 :

  • x² + 2x + 1
  • x² + x + x + 1
  • x(x + 1) + 1(x + 1)
  • (x + 1)(x + 1)
  • (x + 1)² ⇒ Perfect square trinomial
You might be interested in
Line GH contains points G(–2, 6) and H(5, –3). What is the slope of ?
son4ous [18]

Answer:

The answer is

<h2>-\frac{9}{7}</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

G(–2, 6) and H(5, –3)

The slope is

m = -3 - 6 / 5 -- 2 = - 9 /7

Hope this helps you

3 0
3 years ago
Someone PLEASEEEE HELPPPP
igomit [66]

Answer:

x = 18√3

Step-by-step explanation:

From the picture attached,

In a right triangle,

Measure of one angle = 30°

Measure of adjacent side of the angle = 9 units

We have to find the measure of Hypotenuse from the given properties.

By cosine rule,

cos(30°) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

\frac{\sqrt{3}}{2} =\frac{9}{x}

x=18\sqrt{3}

Therefore, measure of Hypotenuse is 18√3 units.

3 0
3 years ago
In this unit, you studied a handful of circle theorems. However, there are other circle theorems not covered in this unit or cou
Lerok [7]

It should be noted that the angle at the center of the circle is twice the angle at the circumference.

<h2>Circle Theorem</h2>

It should also be noted that the angle in a semicircle is a right angle. Angles that are in the same segment are equal.

Furthermore, the opposite angle that is in a cyclic quadrilateral sum is 180°. The angle between the chord and the tangent is also equal to the angle in the alternate segment.

Learn more about circles on:

brainly.com/question/24375372

3 0
3 years ago
Emily's meal cost $32.75 and Darren's meal costs $39.88. Emily treats Darren by paying for both meals, and leaves a14% tip. Find
Helga [31]
(32.75+39.88)=72.63= cost of both meal. 14% of this total cost is 10.1682. add that to the cost of the meal to get the total cost. 72.63+10.1682=$82.80 (rounded to nearest cent)
6 0
3 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 30 m3
vfiekz [6]
Volume of cylinder  = pi r^2 h  = 30 m^3
Volume of sphere = 4/3 pi r^3
now h = 2r ( given) 
so volume of cylinder = pi r^2 * 2r  = 2 pi r^3 = 30
pi r^3 = 15  so r^3  = 15/pi 

therefore the volume of sphere = 4/3 pi * 15/pi = 4/3 * 15 = 20  m^3  Answer
3 0
3 years ago
Read 2 more answers
Other questions:
  • Given A={x ∈ Z : x is even}, B={x ∈ Z : x is prime number}, C={x ∈ Z : x is odd}, and D={5, 7, 8, 12, 13, 15}.
    12·1 answer
  • Find the value of x .
    5·2 answers
  • 5M + 10 = 3M - 4
    14·1 answer
  • HEEEEEEELP WITH MATH<br> will give brainliest
    6·1 answer
  • My uncle had 12 pieces of pizza in his refrigerator. My brother ate two-thirds of the pizza. I ate 1/12 of the pizza. What fract
    12·1 answer
  • How do you write nine and two hundred thirty five thousandths?
    13·1 answer
  • 732,178 + 167 - 542,137
    8·2 answers
  • Solve for r<br> 2r = 7/10
    12·1 answer
  • A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 45 dumpster loads of
    7·1 answer
  • PLEASE LOOK AT PHOTO! WHOEVER ANSWERS CORRECTLY I WILL MARK BRAINIEST!!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!