MATHEMATICS COLLEGE

Which shows the expression below simplified?

0.42 + (3.5 × 10-2)

Answers

Answer 1
Answer:

Answer: 33.42

Step-by-step explanation: 0.42 + (35 - 2) —> 0.42 + 33 = 33.42
Answer 2
Answer:

Answer:

Step-by-step explanation:

50

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You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be included in the sample. If you want your sample estimate to be within 5 years of the actual mean with a confidence level of 94%, how many citizens should be included in your sample? Assume that the standard deviation of the ages of all the citizens in this community is 22 years.

Answers

Answer:

The sample size is    n = 68

Step-by-step explanation:

From the question we are told that

    The margin of error is  E = 5 \ years

     The standard deviation is  \sigma = 22

From the question we are told the confidence level is  94% , hence the level of significance is    

      \alpha = (100 - 94 ) \%

=>   \alpha = 0.06

Generally from the normal distribution table the critical value  of  (\alpha )/(2) is  

   Z_{(\alpha )/(2) } =  1.881

Generally the sample size is mathematically represented as  

   n = [\frac{Z_{(\alpha )/(2) } *  \sigma }{E} ] ^2

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=>  n = 68

What is the height of a
triangle with area 893 square
inches and base 38 inches?

Answers

Here is the answer.

Answer:

47

Step-by-step explanation:

Start by drawing the figure and labeling it with the given information. We are looking for the height of a triangle. The formula for the area of a triangle is A=12bh, where b is the length of the base and h is the height of the triangle. Substituting in the given information and solving for h, we find

A8938931947=12bh=12(38)(h)=h=h

The height is 47 inches.

1. number 5 added to three times the product of M and N.2. product of number Y and Z subtracted from 10.
3. sum of number X and Y subtracted from their products.
4. workings pls​

Answers

Answer:

a) 5 - mn

Step-by-step explanation: its correct

Hey can you please help me posted picture of question

Answers

Each leaf on the tree diagram represents a possible combination. So we are to find the total number of combinations for the given scenario. 

There are 5 ways to select the pant, 7 ways to select a shirt and 3 ways to select the shoes.

Total number of combinations will be the product of all these ways the dress items can be selected.

So, number of combination of outfits = 5 x 7 x 3 = 105 

Therefore, option B gives the correct answer

Which is the graph of g(x) = (0.5)x + 3 – 4?

Answers

Answer:

Graph (A)

Step-by-step explanation:

Given question is incomplete; find the question in the attachment.

Given function is g(x) = (0.5)^(x+3)-4

Parent function of the given function is,

f(x) = (0.5)^(x)

When the function 'f' is shifted by 3 units left over the x-axis, translated function will be,

h(x) = f(x+3) = (0.5)^(x+3)

When h(x) is shifted 4 units down, translated function will be,

g(x) = h(x) - 4

g(x) = (0.5)^(x+3)-4

g(x) has a y-intercept as (-4).

From the given graphs, Graph A shows the y-intercept as (-4).

Therefore, Graph A will be the answer.

Answer:

The Answer A is correct

Step-by-step explanation:

I took the edg2020 test

Consider the figure.
Find AB if BC = 4, BD = 5, and AD = 5

Answers

so I think it's a rectangle. and AB is the diagnal line. to find AB, we need to use the hypothegorin teorin.

BD=5, DA=5

let x represent the AB

formula= a²+b²=c²

= 5²+5²= x²

= 25+25=x²

=50=x²

=square root of 50= 7.07

AB is 7.07
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