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anzhelika [568]
3 years ago
12

Guys Plz help me Answer This!!!!

Mathematics
1 answer:
svetoff [14.1K]3 years ago
7 0

Answer:

353644

Step-by-step explanation:

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Multiply 3/8 x2/5 simplify your answer <br><br> 15/16 isn’t the correct answer
Natasha_Volkova [10]
3/8 times 2/5 is 6/40 or 0.15. Just multiply straight across
8 0
4 years ago
19. Find the perimeter of a triangle if the side lengths are 3 1/2 ft, 5 2/3 ft,<br> and 4 1/6 ft.
vagabundo [1.1K]

Answer: 13 1/3

Step 1: Find the LCD

Step 2: Add the fractions

Step 3: Simplify

3 0
3 years ago
A researcher is interested in determining the average number of years new teachers remain in the classroom. If past information
seraphim [82]
Answer: 385

Given: error: 6 months, standard deviation = 5 years is 60 months

Step 1: find the minimal sample size ‘n’ for 95% confidence interval

1-0.95= 0.05

0.05/2= 0.025

Step 2:
1-0.025= 0.975

View attachment for more steps

8 0
3 years ago
Please help!!!!!!!!!
allsm [11]

Answer:

$42.75

Step-by-step explanation:

18.80+23.95=$42.75

6 0
3 years ago
Read 2 more answers
Câu 1: cho hình chóp S.ABC có đáy là tam giác đều cạnh bằng a, cạnh bên SB vuông góc với mặt phẳng (ABC) , SB =2a. Tính thể tích
Maurinko [17]

Answer:

\frac{\sqrt{3}}{6} a^{3} và \frac{a^{3} }{6}

Step-by-step explanation:

Câu 1: V = 1/3.2a.\frac{\sqrt{3}}{4}a^{2} = \frac{\sqrt{3}}{6} a^{3}

câu 2: Theo đề bài ta có SA là chiều cao và tam giác đáy SBC vuông tại S (hình chóp S.ABC đổi thành chóp A.SBC)

=> V = 1/3 SA.(diện tích tam giác SBC) = 1/3a.\frac{a^{2} }{2} = \frac{a^{3} }{6}

8 0
3 years ago
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