Brock

This page lists questions and answers that were posted by visitors named Brock.

Questions

The following questions were asked by visitors named Brock.

Can mirrors create virtual inverted images?

KNOWNS: Diverging (convex) mirror Radius of curvature = 60 cm (f = 30 cm) M = 1/5 Hi = 20 cm UNKNOWNS: Ho? Di? Do? EQUATIONS: 1/Do + 1/Di = 1/f M = Hi/Ho = -Di/Do

Lewis Structure of Freon (CCI2F2)? And what is shape?

Find the foci of the equation 25^2 + x^2 = 600 Thank you!

u=-1,3 and w= 2,-5. Find the component form of the vector. 3. 2u + 3w A 0,1 B 5,-12 C 2,3 D 1,-2 E -3,8 F 4,-9

Find the dot product of (u+v)*w u=-1,3 v=2,4 w=2,-5 Answer choices: A:37 B:-37 C:-29 D:-33 E:29 F:9

Find a unit vector in the direction of v = (1,-1). Write your answer as a linear combination of the standard unit vectors i and j. Round each component to the nearest hundredth, if necessary. A 0.71i - 0.71j B 0i - 0j C 1.41i - 1.41j D 1i - 1j E 2.83i - 3...

Let u = (-2,3) and v = (5,-6). Find the sum and the dot product of these two vectors.

Complete the square to write the equation x^2 + y^2 - 6x - 2y + 4 = 0 in standard form. Use the standard form of the equation to identify the center and the radius of the circle.

Write the equation of an ellipse with the foci (17, 0) and (-17, 0) and co-verticies (0, 15) and (0, -15).

Find the first 4 terms and the 8th term of the recursively-defined sequence. b1 = 2 and bk+1 = 3bk, for k>0 A. 6, 18, 54, 162; 13,122 B. 3, 6, 9, 12; 24 C. 5, 8, 11, 14; 26 D. 6, 12, 24, 48; 768 E. 2, 6, 18, 54; 4374 F. 2, 4, 8, 16; 256 Thanks!

Find the first 4 terms and the 8th term of the recursively-defined sequence. 4. v1 = 0.75 and vn = (-2)vk-1 for n>1 A. 0.75, 1.5, -3, 6; -192 B. -1.5, -3, -6, -12; 192 C. -1.5, -3, -6, -12; -192 D. 0.75, 1.5, 3, 6; -192 E. 1.5, 3, 6, 12; 192 F 0.75, -1.5,...

Write the sum using summation notation. 2 + 5 + 8 + 11 + ... + 29 Also, I know that it is going up by 3 units. But I am not sure how to get it into the form below: example: 15 ‡” k +3 k-1

Find the sum of the first n terms of the sequence. The sequences are either arithmetic or geometric. 13. -1, 11, -121, ...; n = 9 A. 235,794,769 B. 429,981,696 C. -429,981,696 D. 196,495,641 E. -196,495,641 F. -235,794,769 I know that n = # of terms (9) d...

Use mathematical induction to prove that the statement holds for all positive integers. Also, can you label the basis, hypothesis, and induction step in each problem. Thanks 1. 2+4+6+...+2n=n^2+n 2. 8+10+12+...+(2n+6)=n^2+7n

Write the statements for the basis, the induction hypothesis, and the induction step for the questions below. 1. 1 + 2 +…+n = n(n+1)/2 2. 1/1*2 + 1/2*3+…+1/n*(n+1) = n/n+1

Use the intermediate value theorm to show that the polynomial function has a zero in the given interval f(x)=x^5-x^4+8x^3-5x^2-14x5;[1.4;1.5] find the value of f(1.4) f(1.4)= find the value of f(1.5) f(1.5)=

solve the logarithmic equation. be sure to reject any value of x that is not in the domain of the orginal logarithmic expression. In square root x+7=2 what is the exact solution? a.)the solution set is ? b.)there are infinitely many solutions c.)there is...

solve the exponential equation. Express the solution in terms of natural logarithms. e^x=9.2 a. whats the solution in terms of natural logarithms? **is the answer e^9.2 or just e^9 b. type a decimal rounded to 3 decimal places.

In the following function determine the domain, range, and asymptotes. f(x)= 5*(1/3)^x

What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A. Registration B. Precinct Divisions C. Political Socialization D. Franchising E. Gerrymandering

Two 34 −ìC charges are attached to the opposite ends of a spring of spring constant 150 N/m and equilibrium length 50 cm. that is the question I should probably know this but my brain is fried so far all I have is Original length = 50 cm = 0.5 m Let the s...

Two artifacts in a museum display are hung from vertical walls by very light wires. Wire T1 is horizontal from the left wall and goes to a center weight of 177N and wire T2 is at a 53 degree angle with the right wall heading from right to left downwards t...

A 5 kg ball is moving 4m/s to the right when it collided least ally with a 2 kg ball moving at 6 m/s to the left. After the collision, the 5 kg ball is moving .8 m/s to the right. What is the velocity of the 2 kg ball?

Which are the order pair for 3x+y>6

The intensity of light decreases by 4% for each meter that it descends below the surface of the water. At what depth is the intensity of light only 20% of that at the surface?

Answers

The following answers were posted by visitors named Brock.

I got: Ho=100 cm Di=-24 cm Do=120 cm I rearranged -Di/Do=1/5 to get -5Di=Do. Then I substituted -5Di in for Do in 1/Do + 1/Di = 1/30 to solve for Di. Is that right?

(I'm not sure about the negative sign)

Mamuairi Monument, this contains fresh water it tells you all the answers.

R=8.314 you also must convert 40cm^3 to m^3 1m^3= 10^6 cm^3

Thanks dude! That was a tough question.

* The sequence is geometric and the r=-11. Thank you for any help!

Rocket RAIN!!! (Brawl Stars)