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arsen [322]
3 years ago
5

Understand place value lesson 1.7

Mathematics
1 answer:
ella [17]3 years ago
3 0
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A. What are the coordinates of the vertices of the triangle below?
Viktor [21]

Answer:

Solution given:

<u>A.coordinate are</u>

A(-2,3)

B(0,-3)

C(4,5)

<u>B</u><u>.</u><u>Each</u><u> </u><u>length</u><u> </u><u>are</u><u> </u><u>:</u>

we have

length \sqrt{(x2-x1)²+(y2-y1)²}

now

AB:\sqrt{(-2-0)²+(3+3)²}=2\sqrt{10}units

BC:\sqrt{(0-4)²+(-3-5)²}=4\sqrt{5}units

AC:\sqrt{(-2-4)²+(3-5)²}=2\sqrt{10}units

<u>C.</u><u> the </u><u>figure</u><u>:</u>

<u>By</u><u> </u><u>using</u><u> </u><u>Pythagoras</u><u> </u><u>law</u>

base[b]=AB=perpendicular [p]=AC

hypotenuse [h]=BC

we have

h²=p²+b²

substituting value

(4\sqrt{5})²=2p²

16*5=2*(2\sqrt{10})²

80=2*4*10

80=80

<u>SO</u><u> </u><u>IT</u><u> </u><u>IS</u><u> </u><u>RIGHT</u><u> </u><u>ANGLED</u><u> </u><u>ISOSCELES</u><u> </u><u>TRIANGLE</u><u>.</u>

4 0
3 years ago
What is the area of a regular pentagon if its apothem has a length of 4 feet and each side has a length of 5.8 feet?
fredd [130]
the answer is at least i think B
5 0
3 years ago
Help me on this please !
inna [77]

Answer:

24.08

Step-by-step explanation:

We use the Pythagorean theorem and we get (16)^2 + (18)^2 = (x)^2

256 + 324 = x^2

x^2 = 580

x is about 24.08.

7 0
3 years ago
HEY YOU reader help me with this I'm still struggling
d1i1m1o1n [39]
The myth comes from society, the people saying it benefit, many people immigrate to this country still
6 0
4 years ago
1. A company has $5826 to give out in bonuses. An amount is to be given out equally to each of the 29 employees.
pashok25 [27]

Answer:

a) Incorrect

b) $201

Step-by-step explanation:

a)

$5826 need to be distributed equally among 29 employees . Hence we need to divide 5826 by 29 to know the amount each one will get. Since 58=29*2 and 26≈2, The manager can estimate that each one of the employee will get $201 as bonus. So his reason to estimate was correct but the estimated amount was incorrect.

b)

Each employee will get

\frac{5826}{29}

= 200.89

Hence Each one will get

$201 rounded to nearest whole number

4 0
3 years ago
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