3 years ago

The expanded form of .237 is

Mathematics

1 answer:

Hatshy [7]3 years ago

6 0

Expanded form:
.200 + .030 + .007

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What is the solution of sqrt (x-4)+5=2

worty [1.4K]

Answer:

x = 13

Step-by-step explanation:

<em>The equation is √(x+4) + 5 = 2</em>

√(x-4) = 2 - 5

√(x-4) = -3

x-4 = (-3)²

x-4 = 9

x = 9 + 4

x = 13

Therefore, the second option x = 13 is correct.

7 0

2 years ago

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130lb and 1

Vlad [161]

Answer: 0.4758

Step-by-step explanation:

Given : Mean : $\mu=137\text{ lb}$

Standard deviation : $\sigma =28.9\text{ lb}$

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x=130 lb .

$z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24$

For x=171lb.

$z=\dfrac{171-137}{28.9}=1.1764705\approx1.18$

The p-value = $P(-0.24$

$=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758$

Hence, the required probability : 0.4758

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2 years ago

Solve by factoring. x² - 121 = 0

densk [106]

The first one is 11 and -11 because when you square them they both get 121
The second one is -7 and -1

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3 years ago

I need help please! The answer choices are:

vagabundo [1.1K]

(4^9)^5 is equal to 4^45. You multiply 9 and 5 to get 45.

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2 years ago

Pretty lost not too sure what to do

hram777 [196]

Same dude same sadly

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2 years ago