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pashok25 [27]
3 years ago
9

Geometry problem: i only need the first question :)

Mathematics
1 answer:
Paul [167]3 years ago
7 0

Answer:

Step-by-step explanation:

point p is on line r

line r passes through point P

line r contains point P

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C

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Which expressions are equivalent to 2(2x + 4y + x − 2y)?
Greeley [361]
C should be your answer:))))
5 0
3 years ago
2 in 1
ollegr [7]
1)
2x^2 - 13x - 24 = 0;
the discriminant is : ( - 13 )^2 - 4 * 2 * ( -24 ) = 169 +  192 = 361 = 19^2 => we have two different rational-number solutions ;

2) 
[ -2( x + 2 ) - 3( x - 5 ) ] / [ ( x - 5 )( x + 2 ) ] < 0 <=>

( -5x + 11 ) /  [ ( x - 5 )( x + 2 ) ] < 0

We have 2 situations :
a)  - 5x + 11 < 0 and  ( x - 5 )( x + 2 ) > 0 => x∈ ( 11 / 5 , + oo ) and x∈( -oo, - 2 )U
( 5 , + oo ) => x∈( 5, +oo);
b)   - 5x + 11 >  0 and  ( x - 5 )( x + 2 ) <  0 => x∈(-oo, 11/5) and x∈( -2, 5 ) =>
x∈( -2, 11/5 );

Finally, x∈ U (-2, 11 / 5 ) U ( 5, +oo).
3 0
3 years ago
Giving brainliest to whoever can accurately solve these questions first.
lesantik [10]

1. The amount of money in the account after 10 years is 42,317.96 dollars.

2. it will take Pamela and Kevin 7.5 hours to complete the task together

<h3>How to find compound interest?</h3>

Question(1)

Using compound interest formula,

A = p(1 + \frac{r}{n} )^{nt}

where

  • p = principal
  • r = rate
  • n = number of times
  • t = time

Therefore,

p = 30,000

r = 3.5% = 0.035

t = 10

n = 1

Therefore,

A = 30000(1+\frac{0.035}{1} )^{1X10}

A = $42,317.96

Question 2:

Pamela takes 12 hours to complete a task.

Kelvin takes 20 hours to complete same task.

The time it will take both of them can be computed as follows:

using rate principle,

let

x = time it will take both of them to do the work together.

\frac{1}{x}=\frac{1}{12} + \frac{1}{20}

\frac{1}{x}=\frac{20+12}{240}

\frac{1}{x}=\frac{32}{240}

cross multiply

240 = 32x

x = 240 / 32

x = 7.5 hours

Therefore,  it will take Pamela and Kevin 7.5 hours to complete the task together

learn more on compound interest and rate here: brainly.com/question/18104604

#SPJ1

3 0
2 years ago
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