3 years ago

Find the value of x. (6x-3) 75°

Mathematics

1 answer:

Alenkinab [10]3 years ago

5 0

the value of x is 13

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A researcher is selecting lab rats for her experiment. She assigns each rat a number and picks numbers out of a hat while blindf

laiz [17]

Answer: $\dfrac{76}{89}$

Step-by-step explanation:

The pool of rats from which the researcher is drawing participants is composed of the following:

23 male albino rats

21 male spotted rats

35 female albino rats

11 female spotted rats

Total rats = 23+21+35+11 =90

$P(male\ albino)=\dfrac{23}{90}$

After drawing first rat , total rats remained = 89

$P(\text{either a female albino rat or a male spotted rat})=\dfrac{35+21}{89}=\dfrac{76}{89}$

The probability of choosing a male albino rat and then either a female albino rat or a male spotted rat = $\dfrac{76}{89}$

7 0

3 years ago

Hey can you help me fast!!

Maksim231197 [3]

Answer: 12

Step-by-step explanation:

2.93/.25=11.72 round up to 12

6 0

3 years ago

What is x-4=26 slove for x

Burka [1]

x-4 = 26

x = 26+4

x = 30

4 0

4 years ago

Can u plz tell me what is 22=-11n

julia-pushkina [17]

Answer:

n=-2

Step-by-step explanation:

22=-11n

u divide it and u get

n=-2

and ofc u keep the negative because ur dividing

8 0

3 years ago

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The car is traveling up a steep ramp to a parking garage. The ramp is 445 feet long and rises a vertical distance of 80 feet. Wh

Olin [163]

The ramp is modelled as shown in the diagram below.

The angle of elevation from the car is the angle form by the horizontal line and the observer eye from the car. In the diagram, this angle is marked by $x$

We use trigonometry ratio to work out the value of $x$

$tan(x)= \frac{opposite}{adjacent}$
$tan(x)= \frac{80}{445}$
$x= tan^{-1}( \frac{80}{445})$
$x=10.19$ °

7 0

3 years ago

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