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2 years ago

What is the surface area, in square inches, of the

Mathematics

1 answer:

iren2701 [21]2 years ago

3 0

Answer:

hey if you still need the i have them all just finished the test

Step-by-step explanation:

You might be interested in

A tank weighs 5.6kg when it 1/4 filled with water.If it weighs 10.4kg when it is full ,what will be it's weight when it is empty

Schach [20]

Answer:

4 kg

Step-by-step explanation:

so 1.6 * 4 is 6.4 so you just double check if you want

4 + 1.6 which is 1/4 of 6.4 will be 5.6 (matches with the question)

4 + (1.6*4) (indicates it's full) = 10.4( also Matches with the question)

there is another way by setting up an equation. let me know in comments if you want to see it that way

7 0

1 year ago

5) A sales agent earns a monthly salary that is comprised from a fixed amount of $1,000 and a bonus of $100 for each signed deal

DochEvi [55]

Answer:

(a) $2000

(b) $94.9

Step-by-step explanation:

The expected $ value of signing 100 deals with probability of 0.1 each is

E(X) = 100*0.1 + 100*0.1 + 100*0.1 + ... + 100*0.1 = 100(100*0.1) = $1000

Along with the fixed amount of $1000, the total next month salary is $2000

As for the standard deviation we can apply the following formula

$\sigma = E(X^2) - E(X)^2$

$\sigma = \sqrt{0.1*(100 - \mu)^2 + 0.1*(100 - \mu)^2 + ... + 0.1*(100 -\mu)^2}$

$\sigma = \sqrt{0.1*100*(100 - 1000)^2}$

$\sigma = \sqrt{10*900^2} = \sqrt{9000} = 94.9$

4 0

3 years ago

Find the area of the shaded region. <br> Round your answer to the nearest tenth. 120 degrees 6cm

scZoUnD [109]

If the area of a semicircle and an isosceles triangle is 56.55 cm² and 18 cm². Then the area of the shaded region will be 38.55 cm².

<h3>What is Geometry?</h3>

It deals with the size of geometry, region, and density of the different forms both 2D and 3D.

Then the area of the shaded region will be given by the difference between the area of the semicircle and the area of the isosceles triangle.

The area of the shaded region will be

Shaded area = area of semicircle - area of isosceles triangle

Then the area of the semicircle will be

Semicircle area = π 6² / 2

Semicircle area = π36/2

Semicircle area = 56.55 square cm.

The area of the isosceles triangle will be

Isosceles triangle area = 2 × (1/2) × 6 × 6 sin30°

Isosceles triangle area = 6 × 6 × 0.5

Isosceles triangle area = 18 square cm

Then the area of the shaded region will be

Shaded area = 56.55 - 18

Shaded area = 38.55 square cm

More about the geometry link is given below.

brainly.com/question/7558603

#SPJ1

5 0

1 year ago

-2x + 2y=2<br><br> What’s the slope for m and y and b

stellarik [79]

Answer:

y=x+1

m=1

b=1

Step-by-step explanation:

-2x+2y=2

+2x +2x

2y=2+2x

divide by 2

y=1+x

rewrite

y=x+1

Since b is the y intercept, b would equal 1.

The slope of the line, or m, would be 1 as well.

3 0

2 years ago

The formula for the area A of a triangle is A=(1/2)bh, where b is the length of the base and h is the height. Rearrange the form

zalisa [80]

Answer:

$b=\dfrac{2A}{h}$

Step-by-step explanation:

The formula for the area of a triangle is given by :

$A=\dfrac{1}{2}bh$ ...(1)

Where b is the length of the base and h is the height.

We need to find the value of b from the above formula.

Cross multiplying equation (1) we get :

$2A=bh$

Now dividing both sides by h. So,

$\dfrac{2A}{h}=\dfrac{bh}{h}\\\\b=\dfrac{2A}{h}$

So, the correct option is (D) i.e. $\dfrac{2A}{h}$ .

8 0

2 years ago