Suppose you know that a line passes through the point (0,1).it's slope is 1. Find another point on the line.

Suppose that the local sales tax rate is 7% and you purchase a car for 11,100

Lostsunrise [7]

if you need to find the price of the car with tax, it would be $11877

3 0

3 years ago

a caravan crossed 1378 miles of desert in 85 days it traveled 22 miles the first day and 28 the second day if caravan traveled t

Ronch [10]

Dist. travelled for the first 2 days
= 22 + 28
= 50

Dist. travelled for the remaining 83 days
= 1378 - 50
= 1328

Dist. travelled for EACH of the 83 days
= 1328 ÷ 83
= 16

7 0

3 years ago

Read 2 more answers

The height of a building is

eduard

Answer:

10 feet

Step-by-step explanation:

This is a problem of scale

where scale is

actual height of any object/ height of that object on drawing

given

actual height = 24 feet

this is represented 1/2 inch on drawing

thus

scale = actual height/ height on drawing = 24 feet/1/2 inch = 24*2 feet/ 1 inch

scale = 48 feet / 1 inch

given actual height of a building = 480 feet

let the height on drawing be x inch

thus

48 feet / 1 inch = 480 feet/ x inch

=> x inch/ 1 inch = 480 feet / 48 feet

=> x = 10 feet

Thus, the height of building on the drawing is 10 feet

6 0

3 years ago

Lisa, a real estate agent, earned a Big commission for selling a house. If she puts the money into an account that earns 11.32%

garri49 [273]

Answer:

6 years and 1 month

Step-by-step explanation:

A= Pe^rt

Since you need to find the double A=2P

2P=e^0.1132t

0.1132t=ln 2

0.1132t=0.693

t= 6.12

6 years and 1 month

ps: I think this is right but I'm not sure I had the same problem and I got this.

3 0

3 years ago

For this exercise assume that the matrices are all n x n. Each part of this exercise is an implication of the form "If "statemen

jarptica [38.1K]

Answer:

True

False

Step-by-step explanation:

TRUE

If the equation Ax = 0 has only the trivial solution, then A is row equivalent to the n × n identity matrix

Here's why

If the equation Ax = 0 has only the trivial solution the determinant of the matrix is NOT 0 and the matrix is invertible therefore it is row equivalent to the nxn identity matrix.

TRUE

If the columns of A span ℝ^n , then the columns are linearly independent

Here's why

Remember that the rank nullity theorem states that

$\text{rank}(A) + \text{Nullity}(A) = \text{Dim}(V)$

According to the information given we know that

$\text{rank}(A) = n \\dim(V) = n \\$

Therefore you have

$n + \text{Nullity}(A) = n$

and

$\text{Nullity}(A) = 0$

Which is equivalent to the problem we just solved.

FALSE

If A is an n × n matrix, then the equation Ax = b has at least one solution for each b in ℝ^n

Here's why

Take b as a non null vector and A=0, then Ax = 0 and Ax=b will have no solution.

3 0

3 years ago