Of the following numbers, which one is prime: 32, 42, 29, 15?

Answers

Answer 1
Answer: The answer is 29 I think
Answer 2
Answer: 29 because 1*29........................

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a cyclist covers a distance of 12 km at a speed of 8 km per hour calculate the time taken to cover this distance​
Solve for h. –2(h + 8.4) + –1.4 = –2.8 h =
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P= a+b+2c solve for c

Answers

                    P = a + b + 2c
          P - a - b = a - a + b - b + 2c
          P - a - b = 2c
                 2         2
¹/₂P - ¹/₂a - ¹/₂b = c

Which pair of triangles can be proven congruent by SAS?

Answers

Where The Whole Problem At. ?

What is a solid figure without any bases and with only one curved surface

Answers

A Sphere is a shape with only a curved surface with no bases or edges.

If r and s can be any integers such that s > 10 and 2r + s = 15, which of the following is the solution set for r ?

Answers

R = -2
2x-2=-4
S = 19
This may be a possible answer

The population of a small town in 1990 was 1,200 people, and the population in 2000 was 2,700 people. Let x represent the number of years since 1990. Let y represent the population. Which linear equation represents this data?

Answers

well... looking at how to question is defining things.....i think this is a multiple choice question.....

Given:
"y" represents the population
"x" represents the number of years
duration = 2000 - 1990 = 10 years
population increase = 2700 - 1200 = 1500
Now,
It says linear equation........, So, we have to assume that every ten years the population increases by a fixed amount that is 1500 people every 10 years.

Now, 
Every 10 years, the population increases by 1500
Every 1 year , the population increases by 1500 / 10 
                                                               = 150

Now,
The equation in determining the population is:

y = 150x + 1200


Solve each system using substitution.
3x+2y=23
1/2x-4=y

Answers

\left\{\begin{array}{ccc}3x+2y=23&(1)\ny=(1)/(2)x-4&(2)\end{array}\right\n\nsubtitute\ (2)\ to\ (1)\n\n3x+2((1)/(2)x-4)=23\n3x+x-8=23\n4x-8=23\ \ \ \ |add\ 8\ to\ both\ sides\n4x=31\ \ \ \ \ |divide\ both\ sides\ by\ 4\n\boxed{x=7.75}\n\nsubtitute\ the\ value\ of\
1: 3x+2y=23
2: 1/2x-4=y
We have that y=1/2x-4 in 2
So lets substitu y in 1
3x+2(1/2x-4)=23
3x+x-8=23
4x=23+8
4x=31
X = 7,75
Now lets replace x in 2:
1/2.7,75-4=y
3,875-4 + y
Y= - 0,125
So (x;y)=(7,75;-0.125)