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mestny [16]
3 years ago
6

. Simplify the expression. 4 + 18 ÷ 2 – 1

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0
The answer is 10

4 + 18 = 22 / 2 = 11 - 1 = 10

I hope this helps :)


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Are the triangles similar? If so state the similarity and the postulate or theorem that justifies your answer.
tester [92]

Answer:

A

Step-by-step explanation:

∆ABC is similar to ∆DEF if and only if the ratio of their corresponding side lengths are the same.

Let's find out:

DE/AB = 10/5 = 2

EF/BC = 8/4 = 2

FD/CA = 12/6 = 2

The ratio of their corresponding side lengths are equal, therefore, ∆ABC is similar to ∆DEF based on the SSS Similarity Theorem.

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2 years ago
WILL MARK BRAINLIEST IF CORRECT!!! PLEASEE SOMEONE I HAVE 5 MINS
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Answer:

a) 5+(-1)

b) 5-1

c) 4 is the value

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What is the fraction 36/48 in simplest form
lbvjy [14]
3/4 is the simplest form
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The length of time to complete a door assembly on an automobile factory assembly line is normally distributed with a mean of 6.7
hram777 [196]
We need to work out the z-value of each question to work out the probability

Question a)

We have
X = 5 minutes
The mean, μ = 6.7 minutes
Standard deviation, σ = 2.2 minutes
z-score = (X - μ) / σ = (5 - 6.7) / 2.2 = -0.77

We want to find the probability of z < -0.77 so we read the z-table for the value of z on the left of -0.77 we have the probability P(z< -0.77) = 0.2206

The table is attached in picture 1 below

The probability of assembly time less than 5 minutes is 0.2206 = 22.06%

Question b)

z-score = (10-5) / 2.2 = 2.27

Reading the z-table for P(z<2.27) = 0.9884
The table reading is shown in the second picture below

The probability the assembly time will be less than 10 minutes is 0.9884

We can use this information to find the probability of the assembly time will be more than 10 minutes  = 1 - 0.9884 = 0.0116 = 1.16%

Question c)

The value of z between 5 minutes and 10 minutes is

P(-0.77<z<2.27) = P(z<2.27) - P(z< -0.77)
P(-0.77<z<2.27) = 0.9884 - 0.2206 = 0.7678 = 76.78%


6 0
3 years ago
Please help will mark brainly!
Marina86 [1]
Hey man I got u. The answer for this question is B. Peace
3 0
3 years ago
Read 2 more answers
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