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3 years ago

7

The swimming pool at lifetime city health and fitness club measures 20 meters in length and 15 meters in width wat is the are of

the bottom of the floor to replace the tiles

2 answers:

8_murik_8 [283]3 years ago

8 0

20*15 is 300 meters which is the area

Aleksandr-060686 [28]3 years ago

6 0

Multiply 20 and 15 which equals 3000...Please mark as brainliest....

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Find -4(3)+(-7) <br><br> What order should be preformed in this expression

Sergio [31]

Answer:

-19

Step-by-step explanation:

According to bedmas rules, we have to first solve the brackets.

-4(3)+(-7)

-12 + (-7)

Now, let's add

-12 + (-7)

-12 - 7

= -19

8 0

3 years ago

Using the Law of Cosines, in triangle DEF, if e=18yd, d=10yd, f=22yd, find measurement of angle D

Ivahew [28]

Check the picture below.

$\bf \textit{Law of Cosines}\\ \quad \\
c^2 = {{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)\implies 
c = \sqrt{{{ a}}^2+{{ b}}^2-(2{{ a}}{{ b}})cos(C)}
\\\\\\
\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}=cos(C)\implies cos^{-1}\left(\cfrac{{{ a}}^2+{{ b}}^2-c^2}{2{{ a}}{{ b}}}\right)=\measuredangle C\\\\
-------------------------------\\\\
\begin{cases}
d=10\\
e=18\\
f=22
\end{cases}\implies cos^{-1}\left(\cfrac{{{ 18}}^2+{{ 22}}^2-10^2}{2(18)(22)}\right)=\measuredangle D$

$\bf \implies cos^{-1}\left(0.893\overline{93}\right)=\measuredangle D\implies 26.63^o\approx \measuredangle D$

7 0

3 years ago

30 points need help. WILL MARK BRAINLIEST. Identify the initial amount a and the rate of growth r (as a percent) of the exponent

weqwewe [10]

Answer:

A=6.72

R=2%

g(5)=215.04

Step-by-step explanation:

explanation is the picture.

HOPE THIS HELPED!!! HAVE A GREAT DAY!!!

4 0

3 years ago

M/n=p-6 what is n how to solve

madreJ [45]

M/n=p-6
n= m/(p-6)
i swapped the n and p-6

4 0

4 years ago

Find the area of a triangle with points (-8,8) , (10,-2), and (-8,-8)

tatuchka [14]

Answer:

144

Step-by-step explanation:

Base:16

Height: 18

Triangle area formula: (bxh)/2

16x18=288

288/2=144

8 0

2 years ago