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3 years ago

Mary eats her dinner off a plate that has a radius of 4 inches. What is the exact area of the plate

Mathematics

2 answers:

Alik [6]3 years ago

5 0

I cant get an exact area because pi is a never ending number but i got about 50.27 in

velikii [3]3 years ago

5 0

Area of a circle is (pi)r^2 with r being the radius so 4r^2 punched in a calculator = 39.478

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-3/4x>12 solve for x

Ad libitum [116K]

Answer:

$\Huge\boxed{\mathsf{\rightarrow X$

Step-by-step explanation:

$\Large\boxed{\mathsf{SUBJECT: MATH}}$

Isolate x on one side of the equation.

Find the value of x.

First, multiply -1 from both sides.

(-3/4x)(-1)<12(-1)

Solve.

12(-1)=-12

3/4x<-12

Next, multiply 4 from both sides.

4*3/4x<4(-12)

Solve.

Multiply the numbers from left to right.

4(-12)=-48

3x<-48

Then, divide by 3 from both sides.

3x/3<-48/3

Solve.

Divide the numbers from left to right.

-48/3=-16

X<-16

$\Large\boxed{\Rightarrow \mathsf{X$

The correct answer is x<-16.

6 0

3 years ago

How do you find DE, Round to nearest 10th

Sergeu [11.5K]

Answer: $DE\approx6.0$

Step-by-step explanation:

Observe in the figure given in the exercise that four right triangles are formed.

In this case you can use the following Trigonometric Identity to solve this exercise:

$cos\alpha=\frac{adjacent}{hypotenuse}$

From the figure you can identify that:

$\alpha =53\°\\\\hypotenuse=10\\\\adjacent=BE=DE$

Then, you can substitute values:

$cos(53\°)=\frac{DE}{10}$

The next step is to solve for DE in order to find its value. This is:

$10*cos(53\°)=DE\\\\DE=6.01$

Finally, rounding the result to the nearest tenth, you get that this is:

$DE\approx6.0$

7 0

3 years ago

For the noon meal today she ate 1/2 of a 3-ounce serving of meatloaf, 3/4 of her 3-ounce serving of mashed potatoes, and 1/3 of

Leya [2.2K]

4.41 ounces. 1.5 +2.25 + .66=4.41. You just multiply the faction by the number and add it all up.

3 0

3 years ago

Determine whether the cost for ordering multiple items that will be delivered is sometimes, always or never proportional. Explai

Tanzania [10]

It could sometimes be proportional. The reasoning here is that if all the items have different prices it won't be, however if the items you are ordering all have the same price they will be!

5 0

3 years ago

Each of the equal sides of an isosceles triangle exceeds 3 times the base by 2 inches. If the perimeter is 60 inches, find the l

vfiekz [6]

Sides are x,x,b

x is identical side

x is bigger than 3 times b by 2
x=3b+2

p=x+x+b
60=2x+b

x=3b+2
60=2(3b+2)+b
60=6b+4+b
60=7b+4
minus 4 both sides
56=7b
divide both sides by 7
8=b

sub back
x=3b+2
x=3(8)+2
x=24+2
x=26

legnths are
26in, 26in, 8in

5 0

2 years ago