Find the surface area of a sphere
Show all the work

Answer:

4. 2 nonreal solutions.

Step-by-step explanation:

We need to use discriminant,

for ax²+bx+c=0

The discriminat is b²-4ac

If the discriminant is,

→ less than 0, then 0 real solutions

→ equal to 0, then 1 real solutions

→ more than 0, then 2 real solutions

Given that,

7x²-4x+3=0

a=7, b=-4, and c=3

→ (-4)²-4(7)(3)

→ 16-84

→ -68

You can see this is less than 0, then non real solutions. [2 nonreal solutions]

Answer:

1.76 x 10⁴ gallons

Step-by-step explanation:

8.2 x 10³ + 9.4 x 10³ = 17.6 x 10³

Although correct 17.6 x 10³ is not in scientific notation

which is

1.76 x 10⁴ gallons

Answer:

D.

Step-by-step explanation:

Answer: 1.67 mph

Step-by-step explanation:

Given

Sam walk one-third of a mile in 12 minutes

There is 60 minutes in an hour i.e. Sam take

[tex]\Rightarrow t=\dfrac{12}{60}\\\\\Rightarrow t=0.2\ hr[/tex]

Average speed is given by

[tex]\Rightarrow v_{avg}=\dfrac{\text{distance}}{\text{time taken}}\\\\\Rightarrow v_{avg}=\dfrac{\frac{1}{3}}{0.2}\\\\\Rightarrow v_{avg}=\dfrac{5}{3}\ \text{or}\ 1.67\ mph[/tex]

Answer:

x=2m−6

Step-by-step explanation:

Answer:

Answer:

[tex]8\sqrt{3}[/tex] [tex]\text{in.}[/tex]

Step-by-step explanation:

60 · 60 · 60

60³ = 180

Diameter - 8

3 sides, diameter 8 = answer.

Answer:

D) [tex]4\sqrt{3}[/tex]

Step-by-step explanation:

[tex]x = \sqrt{8^{2} - 4^{2} } = \sqrt{48}= \sqrt{4*16}= 4\sqrt{3}[/tex]

====================================================

Explanation:

The two points given are

C = (x1,y1) = (2,-1)

D = (x2,y2) = (5,3)

Use the distance formula

[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(2-5)^2 + (-1-3)^2}\\\\d = \sqrt{(-3)^2 + (-4)^2}\\\\d = \sqrt{9 + 16}\\\\d = \sqrt{25}\\\\d = 5\\\\[/tex]

The distance from C to D is 5 units. This is the same as saying segment CD is 5 units long.

Answer:

put points on (1.5, 0) and (0, -1), then draw a continuous line through them

Step-by-step explanation:

y - 3 = -2/3(x + 6)

y - 3 = (-2/3)x - 4

y = (-2/3)x - 1

0 = (-2/3)x - 1

1 = (-2/3)x

x = 3/2 = 1.5

y = (-2/3)(0) - 1

y = -1

Answer:

First Box: -10/5

Second Box = -1.25

Third Box = -0.5

Fourth Box = 0.75

Fifth Box = 3/2

Step-by-step explanation:

NOTE: I AM SAYING THIS FROM LEFT TO RIGHT

Answer:

The first box should be -[tex]\frac{10}{5}[/tex] ;

The 2nd box should be -1.25 ;

The 3d box should be -0.5 ;

The 4th box should be 0.75 ;

The 5th box should be 3/2 which is the last box left.

Answer:

[tex]\displaystyle \sin\theta=\frac{12}{13}[/tex]

Step-by-step explanation:

Recall that in a right triangle, sine is the ratio of the opposite side to the hypotenuse:

[tex]\displaystyle \sin\theta=\frac{\text{opposite}}{\text{hypotenuse}}[/tex]

We are actually not given the opposite side in this case. However, since we know the hypotenuse and the adjacent side, we can use the Pythagorean Theorem to find the opposite side. So:

[tex]a^2+b^2=c^2[/tex]

Let a be the adjacent side and b be the opposite side. c will be the hypotenuse.

Substitute:

[tex](5)^2+b^2=(13)^2[/tex]

Solve for b:

[tex]b=\sqrt{169-25}=\sqrt{144}=12[/tex]

So, the opposite side measures 12.

Then sine will be:

[tex]\displaystyle \sin\theta=\frac{12}{13}[/tex]

sure what is it about maybe I can help you if it's possible

Answer: The value of x is 184.

Step-by-step explanation:

According to the similar right angled triangle properties, the product of same side of triangles is equal to the another side product.

Now calculating the value of x for the given pair of similar​ triangles.

According to the given figure:

24 × (2x - 8) = 45 × (x + 8)

(24 × 2x) - (24 × 8) = (45 × x) + (45 × 8)

48x - 192 = 45x + 360

48x - 45x = 360 + 192

3x = 552

x = 184

Thus, the value of x is 184.

Answer:

Just add them up and you will get this answer

Step-by-step explanation:

Just add them up and you will get this answer

The area of the given rectangle in simplest radical form is [tex]2x(\sqrt{10} + \sqrt{75})[/tex].

Perimeter is the sum of all the sides of any given 2D plane figure except circle.A circle has a perimeter or circumference of 2πr.

According to the given question we have to write an expression in simp[lest radical form that represents the area of the rectangle.

We know area of a rectangle is product of it's length and width.

Given length is = [tex]\sqrt{2x} + \sqrt{15x}[/tex] and width is = [tex]2\sqrt{5x}[/tex].

∴ The area of the rectangle will be = [tex](\sqrt{2x} + \sqrt{15x})[/tex][tex](2\sqrt{5x})[/tex] .

= [tex]2\sqrt{10x^2}[/tex] + [tex]2\sqrt{75x^2}[/tex].

= [tex]2x\sqrt{10} + 2x\sqrt{75}[/tex].

= [tex]2x(\sqrt{10} + \sqrt{75})[/tex].

learn more about rectangle here :

https://brainly.com/question/14207995

#SPJ2

Answer:

12 & 7

Step-by-step explanation:

12 + 7=19

12 - 7=5

Answer:

12 & 7

Step-by-step explanation:

*)Solve the system of equations:

x+y=19

x-y =5

=> 2y=14 =>y = 7

y=7 => x = 12

Answer:

sinx= d/f

cosx= e/f

tanx= d/e

Answer:

7 14/20

Step-by-step explanation:

i hope na makatulong to sa inyo

Sara's results probably do have a higher mean, if we take into account how William is way more willing to pay 20 dollars. Honestly, I think you got your chosen answers right! Just my opinion, as someone inexperienced.

Answer:

2/3

Step-by-step explanation:

You have 6 letters, and 4 of them are consonants, so:

4/6 simplify it by 2:

2/3

Answer:

1/6

Step-by-step explanation:

[tex] \frac{4}{6} \times \frac{1}{4} [/tex]

Wait, is this a question?

150

450

1,350

Sorry if that's not the question lol

Answer:

below

Step-by-step explanation:

that is the procedure above

Answer:

Step-by-step explanation:

If we are rotating about the point (2,-1) , then we first need to translate the triangle two points to the left so that point P is at location (2,-1). Once we have that we rotate everything 90 degrees clockwise, while maintaining the same distance and angles between each point in the triangle. After doing this we will get the triangle seen in the attached picture below. Which is fully rotated 90 degrees clockwise about the point (2,-1)

Answer:

True

Step-by-step explanation:

The population always grows by 5%, even though more bacteria are added with each hour. Each hour, due to exponential growth, the population size rises by 5%.

Answer:

diameter=22

circumference=22pi

Step-by-step explanation:

diameter=2*radius

so 2*11=22

circumference=2pi*r

=2*11*pi

=22pi

Answer:

6. Side Angle Side (SAS)

7.  Definition of congruence

Step-by-step explanation:

With the condition that ΔVWX and ΔTUX are equilateral, then the proof are stated below:

Statement                                                   Reason

1. ΔVWX is equilateral                            Given

2. ΔTUX is equilateral                            Given

3. VX ≅ WX                                             Definition of equilateral triangle

4. TX ≅ UX                                              Definition of equilateral triangle

5. <TXW ≅ <UXV                                    Vertical Angle Theorem

6. ΔTWX ≅ ΔUVX                                   Side Angle Side (SAS)

7. UV ≅TW                                               Definition of congruence

Answer:

No, because factorials are product of all positive integers less than or equal to a given positive integer.

The answer is

A. Set X has 10 possible groupings.

C. Set Y = {ABC, ABD, ABE, ACD, ACE, ADE}

E. There are three ways to form a group if persons A and C must be in it.

Good luck :)

Answer:

It’s A,C,E

Step-by-step explanation:

i did the quiz friends

ur wlcm :)

hope i helped /made life easier