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AURORKA [14]
3 years ago
14

Find the value of a (pls someone help me)

Mathematics
1 answer:
tamaranim1 [39]3 years ago
5 0

Answer:

segment a = 12

Step-by-step

2 transversal lines will create similar figures. this means that by doing

a/20= 9/15, you can calculate the length of segment a since they will be similar

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Two families are going sailing. Family A leaves the marina and sails 2.3 miles due north, then sails 3 miles due west. Family B
sasho [114]

Answer:

A

Step-by-step explanation:

We can solve this by drawing it out

Family B has part of their north-south direction negated by going 1 degree north of east, because they are going south and then going north. Family A does not do this, and as a result, with all else equal, they go further away.

6 0
3 years ago
How many solutions does the equation cos(6x)=1/2 have on the interval (0, 2pi)?
Lina20 [59]
Cos( 6 x ) = 1/2          
6 x = 60°  ⇒ x 1 = 10°
6 x = 300° ⇒ x 2 = 50°
6 x = 420° ⇒ x 3 = 70°
6 x  = 660° ⇒ x 4 = 110°
x 5 = 130°,  x 6 = 170°,  x 7 = 190° , x 8 = 230°, x 9 = 250°,
x 10 = 290°, x 11 = 310°, x 12 = 350°
Answer: there are 12 solutions on the interval ( 0 , 2π ).
6 0
3 years ago
Read 2 more answers
Consider the graph with four lines below. On a coordinate plane, line a has a positive slope and goes through points (negative 1
yan [13]

Answer:

The correct option is;

line a and line b

Step-by-step explanation:

Lina a passes through (-1, 0) and (1, 2)

Line b passes through (2, 2) and (-1, -1)

Line c passes through (0, 3) and (1, 0)

Line d passes through y = 1

An equation that has no solution

By examination, from the plot of the coordinates using an online tool, the system that would have no solution is the system of line a and line b because they are parallel lines and cannot meet or have a point where there is a common solution, therefore, there are no solutions when the equations of the two lines are combined in one equation

Slope of line a = -2/-2 = 1

Slope of line b = 3/3 = 1

The slopes of lines a and b are equal, therefore, line a and line b are parallel.

5 0
4 years ago
Which number line model represents the expression -5+2.5
sukhopar [10]
B would be the closest answer
6 0
3 years ago
Read 2 more answers
Classify each number according to its value.
Tems11 [23]

Answer:See below and attached

Step-by-step explanation:

Given numbers

4.2×10^-6, 2.1×10^-3, 3.1×10^-2, 3.2×10^-5, 3.5×10^-4, 5.8×10^-3, 5.2×10^-4

Greater than 3.1×10^-3

3.1×10^-2, 5.8×10^-3

Between 3.1 × 10^-3  and 4.3 × 10^-5

2.1×10 ^-3, 3.5×10^-4, 5.2×10^-4

Less than 4.3 × 10^-5

4.2×10^-6, 3.2×10^-5

Step-by-step explanation

:

6 0
3 years ago
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