What is the mass of a 450 centimeter3 block of silicon if the density of silicon is 2.336 grams/centimeter3?

Answer:

It is D, and or 57

Step-by-step explanation:

Answer:

60

6×4=24

24÷2=12 ___Set aside

4×12=48 ___Add 12 to 48

48+12=60

Answer:

a = 80

Step-by-step explanation:

This is a right triangle so we can use the Pythagorean theorem

a^2 + b^2 = c^2  where a and b are the legs and c is the hypotenuse

a^2 + 60^2 = 100 ^2

a^2 +3600=10000

Subtract 3600 from each side

a^2 = 10000-3600

a^2 =6400

Take the square root of each side

a = sqrt(6400)

a = 80

Answer:

x < -7

Step-by-step explanation:

[tex]-7x>49\\\\\frac{-7x}{-7}>\frac{49}{-7} \leftarrow \text {Division Property of Equality}\\\boxed{x < -7} \leftarrow \text {The symbol switches every time we multiply or divide by a negative in a inequality.}[/tex]

Answer:

(x + 4)(x + 5)

Step-By-Step Explanation:

What two numbers add to 9 and multiply to 20?

They would be 4 and 5.

So,

After Rewriting the expression,

(x + 4)(x + 5)

Hope this helped ;)

Answer:

D; y= 2.52x

Step-by-step explanation:

You half $5.04 (the cost of two lbs of cranberries) and get $2.52 then multiply by x (the lbs.) equals y the cost of all the lbs. of cranberries.

Therefore getting the equation of y= 2.52x

Answer: y=2.52x

Step-by-step explanation:

if you take any of the statements you can calculate it.

Let "x" be pounds, and "y" the total cost of x pounds.

2x=5.04

Divide by 2

x=5.04/2

x=2.52

Answer:

11

Step-by-step explanation:

See Work Below

I hope this helps. If you have any more questions, please feel free to post them and someone will be able to help you, whether it's myself or others. Please leave a like, rating, and if possible, Brainliest. Have a great day!

Diagrams can be drawn using scale ratios, which can either represent enlargement or compression

The dimensions of the side elevation are given as:

0.5 m, 2 m and 0.5 m

The dimensions of the front elevation are given as:

2 m and 2 m

Using a scale of 2 squares to 1 m, the scaled dimensions become:

See attachment for illustration of the scaled measurement

Read more about scales and dilations at:

https://brainly.com/question/19347268

Answer:

The sample proportion is 0.253.

Step-by-step explanation:

We are given that a 90% confidence interval for a proportion is found to be (0.22, 0.28).

Firstly, as we know that the confidence interval for sample proportion is calculated as;

90% confidence interval = Sample proportion [tex]\pm[/tex] Margin of Error

Here, let [tex]\hat p[/tex] = sample proportion

Also, the level of significance = 1 - 0.90 = 0.10 or 10%

And, the critical value of z at 5% (two-sided) level of significance is 1.645.

So, 90% confidence interval =  [tex]\hat p \pm 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }[/tex]

           (0.22 , 0.28)    =   [tex]\hat p \pm 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }[/tex]

This means;  

          0.22  =  [tex]\hat p - 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }[/tex]  -------------- [Equation 1]

          0.28  =  [tex]\hat p + 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }[/tex]  -------------- [Equation 2]

From equation 1 and 2, we get;

           [tex]0.22 + 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }= 0.28 - 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }[/tex]

           [tex]1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} } + 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }= 0.28 -0.22[/tex]

             [tex]2 \times 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} } =0.06[/tex]

                 [tex]\sqrt{\frac{\hat p(1-\hat p)}{n} } =\frac{0.06}{2 \times 1.645}[/tex]

                  [tex]\sqrt{\frac{\hat p(1-\hat p)}{n} } =0.02[/tex]

Now, squaring both sides, we get;

                    [tex]{\frac{\hat p(1-\hat p)}{n} } =0.0004[/tex]

                      [tex]n ={\frac{\hat p(1-\hat p)}{0.0004} }[/tex]

Now, putting value of n in equation 1, we get;

                    0.22  =  [tex]\hat p - 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{n} }[/tex]  

                    0.22  =  [tex]\hat p - 1.645 \times \sqrt{\frac{\hat p(1-\hat p)}{\hat p(1-\hat p)}\times 0.0004 }[/tex]

                    0.22  =  [tex]\hat p - 1.645 \times \sqrt{ 0.0004 }[/tex]

                    0.22  =  [tex]\hat p -( 1.645 \times 0.02)[/tex]

                    0.22  =  [tex]\hat p -0.033[/tex]

                      [tex]\hat p = 0.22 + 0.033[/tex] = 0.253

Therefore, the sample proportion  [tex]\hat p[/tex] is 0.253.

Answer:

It's D.

Step-by-step explanation:

The 1/2 stretches the graph horizontally of x^2 by a factor 1/2.

Option-D will represent the required graph of the function [tex]g(x) = \frac{1}{2}f(x)[/tex].

"A function is defined as a relation between a set of inputs having one output each."

The given function:

[tex]f(x) = x^{2}[/tex]

Therefore the required function is:

[tex]g(x)\\= \frac{1}{2}f(x)\\= \frac{1}{2}x^{2}[/tex]

By putting the values of 'x' as -2, -1, 0, 1, 2 etc. we get:

[tex]g(-2) = (-2)^{2} = 4\\ g(-1) = (-1)^{2} = 1\\ g(0) = (0)^{2} = 0\\ g(1) = (1)^{2} = 1\\ g(2) = (2)^{2} = 4[/tex]

By plotting this value, we get option-D is the graph that represents the function g(x).

Learn more about a function here: https://brainly.com/question/12251916

#SPJ2

Answer:

Step-by-step explanation:

2x - 3y = 5

-3y = -2x + 5

y = (2/3)x - 5

the perpendicular slope is -3/2

the answer is c

Answer:

the perpendicular slope is -3/2

Step-by-step explanation:

Answer:

The answer is A

Hope that help

Answer:

67 m2

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

You need to add all four then divide the answer by 4.

Hope this helps.

Answer:

20

Step-by-step explanation:

Answer:

C) -0.71m/s²

Step-by-step explanation:

V = V0 + at

V = final veloctiy

V0 = Initial velocity

a = acceleration

t = time

3 = 9 + a7

-5 = a7

[tex]-\frac{5}{7}[/tex] = a

a ≅ -0,71

Answer:

C. -0.71 m/s2 west

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

I believe A. is true for the question

Answer:

125

Step-by-step explanation:

The probability of getting a spade is 14/56. We multiply 14/56 times 500 that equals 125. I think Josh will get a spade 125 times out of 500.

Answer:

6/b=10/40

Step-by-step explanation:

Let me know if this is correct or if I did something wrong I haven't done this kinda math in a couple year D:

Answer:

6/h=10/40

Step-by-step explanation:

The first and second one have a 30, so it's not right.

Answer:

35 x 10^7

Step-by-step explanation:

[tex]5 * (7 \times {10}^{7} \\ 35 \times {10}^{7} [/tex]

Answer:

3.5*10^8

Please look at the photo that’s the answer.

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

Answer:

90%

Step-by-step explanation:

9/10 = 90/100

the answer to the equation is 90

Answer:

8 and 9

Step-by-step explanation:

8 comes after 9 and 8 + 9 = 17

Answer:

h = 12 inches

Step-by-step explanation:

The volume is  given by

V = Bh  where B is the area of the base and h is the height

Substituting V = 1080 and B = 90

1080 = 90h

Divide each side by 90

1080/90 = 90h/90

12 = h

Answer:

3

Step-by-step explanation:

Answer:

-7 < x

Name 2 values

0 and 10

Any number greater than -7 will work

Step-by-step explanation:

-4 < 2(x + 5)

Divide each side by 2

-4/2 < 2/2(x + 5)

-2 < (x + 5)

Subtract 5 from each side

-2-5 < x+5-5

-7 < x

Name 2 values

0 and 10

Any number greater than -7 will work

Answer:

[tex] - 7 < x[/tex]

Step-by-step explanation:

[tex] - 4 < 2(x + 5) \\ - 4 <2 x + 10 \\ - 4 - 10 < 2x \\ - 14 < 2x \\ \frac{ - 14}{2} < \frac{2x}{2} \\ - 7 < x[/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

x>5

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

the area of square is 10²=100

Area of a circle is πr²=π(10/2)²=25π

100-25π=100-25*3.14=100-78.5=21.5

Step-by-step explanation:

Multiply 10 by 10, then find the area of the circle (78.54) then subtract, 100-78.54= 21.46. Then round. So its A. 21.5 meters squared

Answer:

I think it should be 9km

Answer:

can show me the graph plz

Step-by-step explanation:

Answer:

A is the correct answer.

Step-by-step explanation:

The formula for the area of a triangle is A = 1/2 b x h

The base in this triangle is 6 and the height is 4 so 6 x 4 = 24.

Now we divide 24 by 2 which gives us 12 square centimeters.  

Hope this helps

Answer: A. 12 square centimeters

Step-by-step explanation:

The area of a triangle is (1/2)bh because any triangle is half of a square (square formula = bh).

1/2bh --> 1/2  * 6 * 4 --> 12 square centimeters

Hope this helps! Good Luck :)