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ollegr [7]
3 years ago
13

A ship sails 20 km west then 35 km south. Calculate how far it

Mathematics
2 answers:
amid [387]3 years ago
4 0

Answer:

40.3

Step-by-step explanation:

Use pythagoras theorem, a^2 + b^2 = c^2

400 + 1225 = 1625

sqrt of 1625 = approx 40.3

anzhelika [568]3 years ago
4 0

<em>Answer:</em>

<em>40, 3 km </em>

<em>Step-by-step explanation:</em>

<em>Pitagora </em>

<em>AC = √(AB² + BC²)</em>

<em>AC = √(20² + 35²)</em>

<em>AC = √(400 + 1225)</em>

<em>AC = √1625</em>

<em>AC ≈ 40,3 km </em>

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Q
Tema [17]

Answer:

y = \frac{1}{2} x+7

Step-by-step explanation:

Slope-intercept form: y = mx + b

Slope formula: \frac{y2-y1}{x2-x1}

Given points: (-6, 4), (6, 10)

(-6, 4) = (x1, y1)

(6, 10) = (x2, y2)

To write the equation in slope-intercept form, we need to find the slope(m) and the y-intercept(b) of the equation.

First, let's find the slope. To do this, input the given points into the slope formula:

\frac{10-4}{6-(-6)}

Simplify:

10 - 4 = 6

6 - (-6) = 6 + 6 = 12

\frac{6}{12}=\frac{1}{2}

The slope is \frac{1}{2}.

To find the y-intercept, input the slope and one of the given points(in this example I'll use point (6, 10)) into the equation and solve for b:

10 = \frac{1}{2}(6)+b

10 = 3 + b

7 = b

The y-intercept is 7.

Now that we know the slope and the y-intercept, we can write the equation:

y = \frac{1}{2} x+7

4 0
3 years ago
A train travels at a constant rate of 45 miles per hour.
givi [52]
A. d=45t
b. 112.5 miles. 112.5=45•2.5
6 0
3 years ago
Read 2 more answers
A truck can be rented from Company A form ​$130 a day plus $0.30 per mile. Company B charges ​$50 a day plus $0.80 per mile to r
navik [9.2K]

Answer:

160 miles

Step-by-step explanation:

Company A form ​$130 a day plus $0.30 per mile

Company A = 130 + 0.30x

Company B charges ​$50 a day plus $0.80 per mile

Company B = 50 + 0.80x

Where,

x = number of miles

Equate the cost of company A and company B

130 + 0.30x = 50 + 0.80x

Collect like terms

130 - 50 = 0.80x - 0.30x

80 = 0.50x

Divide both sides by 0.50x

x = 80 / 0.50

= 160

x = 160 miles

The number of miles in a day at which the rental costs for Company A and Company B are the same is 160 miles

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The machine will make 24 robots
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3 years ago
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