All categories

2 years ago

What is the value of the expression (30.72 × .05) - 1.42

Mathematics

2 answers:

Alexeev081 [22]2 years ago

8 0

Your answer is 0.116

Step-by-step explanation:

kotykmax [81]2 years ago

7 0

Answer:

0.116

Step-by-step explanation:

$(30.72*0.05)-1.42\\1.536-1.42=\\0.116$

You might be interested in

What is the number of acute obtuse and right angle of a rectangle

matrenka [14]

The number of a acute angle in a rectangle is 89 through 1 the obtuse angle in a rectangle is 91 through inf and a right angle of a rectangle is 90 degrees

4 0

3 years ago

If a seed is planted, it has a 75% chance of growing into a healthy plant.

Arlecino [84]

Answer:

It is binomial:

p= 0.75 = 75%

1-p = 0.25 = 25%

N = 10

k=7

"seven successes in 10 trials"

(10 choose 7) (0.75)^7 ( 0.25)^3 =

(10*9*8 / 3*2) * (0.75)^7 ( 0.25)^3 =

(5*3*8) (0.75)^7 ( 0.25)^3

120 (0.75)^7 ( 0.25)^3

= 0.25028228759765625

or just over 25%

Step-by-step explanation:

5 0

2 years ago

Which of the following theorems verifies that ABC~WXY?

Bumek [7]

Answer:

The correct answer is option B. AA

Step-by-step explanation:

Given two triangle:

$\triangle ABC$ and $\triangle WXY$ .

The dimensions given in $\triangle ABC$ are:

$\angle A = 27^\circ\\\angle B = 90^\circ$

We know that the sum of three angles in a triangle is equal to $180^\circ$ .

$\angle A+\angle B+\angle C = 180^\circ\\\Rightarrow 27+90+\angle C=180^\circ\\\Rightarrow \angle C = 63^\circ$

The dimensions given in $\triangle WXY$ are:

$\angle Y = 63^\circ\\\angle X = 90^\circ$

We know that the sum of three angles in a triangle is equal to $180^\circ$ .

$\angle W+\angle X+\angle Y = 180^\circ\\\Rightarrow \angle W+90+63=180^\circ\\\Rightarrow \angle W = 27^\circ$

Now, if we compare the angles of the two triangles:

$\angle A = \angle W = 27^\circ\\\angle B = \angle X= 90^\circ\\\angle C = \angle Y= 63^\circ$

So, by AA postulate (i.e. Angle - Angle) postulate, the two triangles are similar.

$\triangle ABC \sim \triangle WXY$ by AA theorem.

So, correct answer is option B. AA

7 0

2 years ago

While driving on the highway, Dave averages 60 miles per hour. In the city, he averages 30 miles per hour. On a trip to his gran

Tasya [4]

Dave arrived to his grandmother's hours in7.75 hours.

7 0

3 years ago

Read 2 more answers

A jeweller paid $6800 for 165 bracelets bought in China .The customs Department in his country charged him $1360 in duty

vodomira [7]

You’re so smart, I love questions like this. Hopefully you can solve it so I can know too!

5 0

2 years ago