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3 years ago

I need help on this. Sorry for the work on my paper.

Mathematics

1 answer:

vazorg [7]3 years ago

5 0

3X+28=200
X represents the amount of money each friend gets

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Pls help and show workings due ASAP

IceJOKER [234]

Answer:

x is 5

ST is 45

Step-by-step explanation:

In the given figure

∵ m is the bisector of the segment SU

→ That means m intersects SU at the midpoint of SU

∵ m ∩ SU at point T

∴ T is the midpoint of SU

→ The midpoint of a segment divides it into two equal parts

∵ The point T divides SU to ST and TU

∴ ST = TU

∵ ST = 9x

∵ TU = 4x + 25

→ Equate them

∴ 9x = 4x + 25

→ Subtract 4x from both sides

∵ 9x - 4x = 4x - 4x + 25

∴ 5x = 25

→ Divide both sides by 5

∴ x = 5

→ Substitute the value of x in ST

∵ ST = 9(5) = 45

∴ ST is 45

7 0

3 years ago

An airline tracks data on its flight arrivals. Over the past six months, 25 flights on one route arrived early, 150 arrived on t

lions [1.4K]

Answer: a) 0.0625,0.375,0.1125,0.075 respectively.

b) Yes, they are mutually exclusive

c) 0.4375.

Step-by-step explanation:

Since we have given that

Number of flights on one route arrived early = 25

Number of flights arrived on time = 150

Number of flights were late = 45

Number of flights were cancelled = 30

Total number = 25+150+150+45+30 = 400

We need to find the probability that a flight is early is given by

$\dfrac{25}{400}\\\\=0.0625$

Probability that a flight is on time is given by

$\dfrac{150}{400}=0.375$

Probability that a flight is late is given by

$\dfrac{45}{400}=0.1125$

Probability that a flight is cancelled is given by

$\dfrac{30}{400}=0.075$

They are mutually exclusive as they have no dependence.

Probability that a flight is either early or on time is given by

$\dfrac{25}{400}+\dfrac{150}{400}\\\\=\dfrac{175}{400}\\\\=0.4375$

Hence, a) 0.0625,0.375,0.1125,0.075 respectively.

b) Yes, they are mutually exclusive

c) 0.4375.

8 0

4 years ago

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Paraphin [41]

Answer:

Step-by-step explanation:

For a quadratic equation ax² +bx +c= 0, the quadratic formula is as below:

$\boxed{x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} }$

x² -12x +7= 0

$x = \frac{ - ( - 12)± \sqrt{( - 12) {}^{2} - 4(1)(7) } }{2(1)}$

$x = \frac{12± \sqrt{144 - 28} }{2}$

$x = \frac{12± \sqrt{116} }{2}$

$x = \frac{12± \sqrt{4(29)} }{2}$

$x = \frac{12±( \sqrt{4})( \sqrt{29} )}{2}$

$x = \frac{12±2 \sqrt{29} }{2}$

$x = 6± \sqrt{29}$

$∴x = 6 + \sqrt{29} \: \: \: or \: \: \:x = 6 - \sqrt{29}$

6 0

3 years ago

Find the solution to the equations. 2х-у=-3 х+у=0 0,0 -1,1 1,-1

kobusy [5.1K]

It’s 0,0. The correct answer!

3 0

3 years ago

Read 2 more answers

Select all expressions that are equivalent to 16x-12-24x+4. pls help ASAP!

AleksandrR [38]

-8x - 8.
16x - 24 x = -8x
-12 + 4 = 8

8 0

4 years ago