Solve using Distributive property -3(-4v^3-2+2y^2)

we have 3 boxes and they are equal to 2 circles, if each circle is equal to 1, what is the value of 1 box?

mario62 [17]

Answer:⬛️=.667 (.66 repeating)

Step-by-step explanation) you can set up the equation:

3x=2y

(using x for squares and y for circles).

we know the value of the circles is 1, so plug 1 in for y

3x=2(1) , simplify

3x=2

now get x by itself by dividing both sides by 3

x=2/3

x=.66

8 0

3 years ago

Read 2 more answers

A car manufacturer is concerned that dealers conceal unhappy customers by keeping them out of surveys conducted by the factory.

8_murik_8 [283]

Answer:

Yes, the manufacturer can estimate the proportion of all customers at this dealership who feel that its service is exceptionally good.

No, the manufacturer cannot estimate, the proportion of customers who rated the service as exceptionally good, about the other dealerships.

Step-by-step explanation:

A sample of 65 customers from a dealership is selected and it is determined that 55% of the customers rated the service as exceptionally good.

According to the central limit theorem if a large random sample selected from an unknown population then the sampling distribution of sample proportion ( $\hat p$ ) follows a normal distribution.

Then the population proportion can be estimated by the sample proportion value.

That is, $p=\hat p=0.55$ .

Thus, the manufacturer can estimate the proportion of all customers at this dealership who feel that its service is exceptionally good using the sample proportion value of $\hat p=0.55$ .

Since the sample is selected from a specific dealership, he cannot estimate, the proportion of customers who rated the service as exceptionally good, about the other dealerships.

3 0

3 years ago

Find the x-intercept(s) Round to nearest hundredth if needed y=-2x^2-8x-4

kherson [118]

y=-2x^2-8x-4

-2x^2-8x=4

divide by negative 2

x^2+4x=-2

complete the square

(x+2)^2=-2+4

(x+2)^2=2

x+2=± $\sqrt{2}$

x=-2± $\sqrt{2}$

nearest hundreths,

x=-0.59

x=-3.41

6 0

3 years ago

A hospital stores one type of medicine in 2-decagram

Aleks04 [339]

Answer:

There are 20,000 milligrams in one 2-decagram container . Thus option D is correct.

Step-by-step explanation:

The given information is one type of medicine in 2 decagram container.

Here, we know ,

1 decagram = 10 grams

and, 1000 milligrams =1 gram

now -: 2 decagram = 2 × 10grams {since 1decagarm = 10 grams }

= 20 grams .

then , = 20× 1000milligrams {since 1 gram = 1000 milligrams}

=20,000 milligrams .

Hence, the correct option is D that is 20,000 milligrams .

4 0

4 years ago

angle a and b are both supplementary to angle c if the measure of angle a is 12 less than 2 times the measure of c find the meas

castortr0y [4]

Answer:

The measure of a = b = 116 degrees

Step-by-step explanation:

Here, we have value of angles to calculate.

If a and b are both supplementary to c, what this means is that when we add either a or b to c, we get 180

Hence; Mathematically;

a + c = 180 and b + c = 180

What we have here is that a and b must be equal since they are both supplementary to the same angle value

Now, we are told further in the question that the measure of angle a is 12 less than 2 times the measure of c;

Mathematically, this means that;

a = 2c - 12

So we now want to find the measure of b

Let’s substitute for a

2c -12 + c = 180

3c -12 = 180

3c = 180 + 12

3c =192

c = 192/3

c = 64

Thus; a = 2c - 12 = 2(64) -12 = 128 -12 = 116

3 0

3 years ago