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3 years ago

11

You run 4 3/4 miles through a park each day. If you ran that distance 5 times last week, how many miles did you run?

2 answers:

Lelechka [254]3 years ago

7 0

It;s simple you just take 4 3/4 and multiply it by 5
which is 23 3/4 or 23.75

hammer [34]3 years ago

6 0

23 3/4 because 4.75 ( 4 3/4) * 5 (#days) = 23.75 or 23 3 /4

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What is the perimeter of the triangle shown on the coordinate plane,to the nearest tenth of a unit ?

ollegr [7]

Answer:

25.6 units

Step-by-step explanation:

From the figure we can infer that our triangle has vertices A = (-5, 4), B = (1, 4), and C = (3, -4).

First thing we are doing is find the lengths of AB, BC, and AC using the distance formula:

$d=\sqrt{(x_2-x_1)^{2} +(y_2-y_1)^{2}}$

where

$(x_1,y_1)$ are the coordinates of the first point

$(x_2,y_2)$ are the coordinates of the second point

- For AB:

$d=\sqrt{[1-(-5)]^{2}+(4-4)^2}$

$d=\sqrt{(1+5)^{2}+(0)^2}$

$d=\sqrt{(6)^{2}}$

$d=6$

- For BC:

$d=\sqrt{(3-1)^{2} +(-4-4)^{2}}$

$d=\sqrt{(2)^{2} +(-8)^{2}}$

$d=\sqrt{4+64}$

$d=\sqrt{68}$

$d=8.24$

- For AC:

$d=\sqrt{[3-(-5)]^{2} +(-4-4)^{2}}$

$d=\sqrt{(3+5)^{2} +(-8)^{2}}$

$d=\sqrt{(8)^{2} +64}$

$d=\sqrt{64+64}$

$d=\sqrt{128}$

$d=11.31$

Next, now that we have our lengths, we can add them to find the perimeter of our triangle:

$p=AB+BC+AC$

$p=6+8.24+11.31$

$p=25.55$

$p=25.6$

We can conclude that the perimeter of the triangle shown in the figure is 25.6 units.

6 0

3 years ago

What is the length of an arc given that the measure of the central angle is 30 degree and the radius is 7 cm?

pogonyaev

La longitud del arco (s) en una circunferencia, conociendo el radio (r) y el ángulo (θ) que forman los dos radios, es:

s = r∙θ

Con el ángulo en radianes

F V7 w7 :

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3 years ago

Need help with these. 11th grade algebra 2 class. thanks

OlgaM077 [116]

15) x=31/10
16)x=2
17)x=16/3
18)x=-2
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3 years ago

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3 years ago

What is the difference between 89 and 236 ( math equation)

inn [45]

Answer:

147

Step-by-step explanation:

236-89=147

3 0

2 years ago