100 POINTS PLEASE HELP ASAP!!!!!!

Use the tables to answer the question.


Mineral Mohs Hardness

calcite 3

feldspar 6

halite 2.5

talc 1

Item Mohs Hardness

fingernail 2.5

penny 3

glass slide 5.5

streak plate 6.5

Luiz has an unknown mineral. He suspects he has feldspar. If he is correct, which of the items listed will be able to scratch the mineral’s surface?


A.

a penny


B.

a glass slide


C.

a streak plate


D.

his fingernail

Answer:

0.0425

Step-by-step explanation:

Answer:

0.0425

Step-by-step explanation:

Answer:

The value of b2 is 64

Step-by-step explanation:

Answer:

64 m^2

Step-by-step explanation:

as

b=8m so

b^2=( 8×8 ) m^2

Answer:

The answer is C

Step-by-step explanation:

Spread is the greatest number minus the smallest number which would be 9-4=5.

The center is the middle of all the values written out, 4,6,7,9, and 9 which would make the center 7.

Answer: 147.71 yard³

Step-by-step explanation:

The volume of a cone is calculated using the formula:

Volume = ⅓πr²h

where,

π = 3.14

r = Diameter/2 = 8.4/2 = 4.2

h = height = 8

Volume = ⅓ × 3.14 × 4.2² × 8

Volume = ⅓ × 3.14 × 17.64 × 8

Volume = 147.71 yard³

Answer:

The number of questions in Mark's homework is:

Step-by-step explanation:

To identify the number of questions of the homework, first, you must identify the percentage that is the 12 question Mark calculates by himself: if in 80% he uses calculator, in 20% he doesn't, I mean, he uses his own calculates, by this reason:

With this data, we can use a simple rule of three and find the number of question that correspond to 80%.

If:

Then:

At last, we add the 80% and the 20% of the questions:

As you can see, the number of questions in Mark's homework is 60 questions.

Answer:

area of sector is equal to

teeta × πr²

360

40 × 22 × 8×8

360. 7

22.35m

The area of the smaller sector OAB is 22.32 meter square.

We have a circle of radius 8 meters. Inside it, an arc AB subtends an angle [tex]40^{o}[/tex] at the center, due to which a smaller or minor sector OAB is formed.

We have to find out the area of this smaller sector OAB.

The area of the sector is given by -

We can use this formula to calculate the area of the smaller sector OAB, in our question -

[tex]\alpha =40^{o}[/tex]

[tex]r = 8\;m[/tex]

Substituting the values, we get -

[tex]A_{sector} = \frac{40\times3.14\times8\times8}{360} \\A_{sector} = 22.32\;m^{2} \\[/tex]

Hence, the area of the smaller sector OAB is 22.32 meter square.

To solve more questions on finding the area of the sector, visit the link below -

https://brainly.com/question/20515973

#SPJ2

Answer:

5 Simplify the radical by breaking the radicand up into a product of known factors, assuming real numbers.

Answer:

5

Step-by-step explanation:

∛125  = ∛5 x 5 x5  = 5                        [ 125 = 5 x 5 x 5 ]  (do prime factorization)

I hope u understood!  

Answer:

9

Step-by-step explanation:

Let the no be x

By the conditions given ,

2x + 6x = 72

8x = 72

x = 72/8

x = 9

therefore the no is 9

[tex](2 \times x) + (6 \times x) = 72 \\ 2x + 6x = 72 \\ 8x = 72 \\ x = 72 \div 8 \\ x = 9[/tex]

Answer:

[tex](x + y) {}^{3} = {(x + y)}^{2} (x + y) \\ = ( {x}^{2} + 2xy + {y}^{2} )(x + y) \\ = ( {x}^{3} + {x}^{2} y+ 2 {x}^{2} y + 2x {y}^{2} + x {y}^{2} + {y}^{3} ) \\ = ( {x}^{3} + 3 {x}^{2} y + 3x {y}^{2} + {y}^{3} )[/tex]

Answer:

A

Step-by-step explanation:

In A, the number of bags that had more than 19 skittles is 7 and the number of bags that had less than 19 skittles is 16, so A is true.

In B, the median package contained 18 candies.

In C, 5 bags contained 18 candies, while there were 8 bags in total for the 17 and 20 bags.

In D, the range is the highest value minus the lowest, so it's 22-12=10.

Answer:

[tex]\displaystyle m = 7[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Algebra I

Step-by-step explanation:

Step 1: Define

Identify points from graph

Point (0, 1)

Point (1, 8)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Answer:

3.125 miles

Step-by-step explanation:

5 × 0.625 = 3.125 miles

The diagnonals of a parallelogram bisect each other ,

so

=》 BD = 3x × 2

=》BD = 6x

and there's given that

=》

[tex] BD = \dfrac{3}{5} AC[/tex]

=》

[tex]6x = \dfrac{3}{5} \times 40[/tex]

=》

[tex]x = \dfrac{24}{6} [/tex]

=》

[tex]x = 4[/tex]

so, if x = 4 , then the given quadrilateral is a parallelogram.

Answer:

Sunrise Sharks

Step-by-step explanation:

I added all of the numbers then divided them by 5 since there are 5 swim times provided. Have a nice day!

Answer:

her grade is 90

Step-by-step explanation:

Answer:

Step-by-step explanation:ionmjnjnkjnjkm;nknknkn

Answer:

Thia equation represenst the problem : 4(1.50 + 3x) =24

Answer:

4842

Step-by-step explanation:

538 x 9= 4842 proof  i used my calculator

Answer:

Nonlinear

Do not

Nonlinear

increase the y-values decrease and then increase.

Explanation:

When graphed, nonlinear functions are parabolas. Both the equation and the table will graph as parabolas so they are both nonlinear. Nonlinear functions do not have a constant rate of change. And if you look at the table, when an x value increases, the y value decreases and then increases.

Answer:

Step-by-step explanation:

The table is a quadratic. Its equation is y = x^2 + 4

The equation represents a non-linear equation. A quadratic is not linear. It does not have a constant rate of change.

The table is a a quadratic. It is non-linear function.

I don't know how to read the last one, but you can see what happens. As the x value increases the y value decreases and then increases.

Answer:

503

Step-by-step explanation:

PEMDAS:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Answer:

60° ; 30°

27.71 km

Step-by-step explanation:

Since we have a right angled triangle, and also the sum of the angles in a triangle is 180°

Angle of elevation is given as 60°

Hence, we have :

90°+60°+x ° = 180°

x = 180 - 150

x = 30°

The two acute angles are 60° and 30°

The altitude, h of the drone can be obtained thus :

Using trigonometry :

Sin θ = opposite / hypotenus

Sin 60 = h / 32

h = 32 * sin 60

h = 27.71 km

Answer:

Step-by-step explanation:

Answer:

D or the last one.

Step-by-step explanation:

Honestly, you got me kinda confused. Is it saying that there is multiple equations to answer this? Well anyways, D would be the answer. When the variable (w) is beside the coefficient, it means you multiple them together. (W) standing for weeks multiplied by 12 which is how much you earn each week would get you the total amount. The rest just don't make sense.

Answer:

6%

Step-by-step explanation:

for this is divided the fee by the price of the item.

Answer:

[tex]y = \sqrt{ {14}^{2} - {10}^{2} } \\ y = \sqrt{96} \\ y = 9.8[/tex]

Answer:

Step-by-step explanation:

using pythagoras theorem

h^2=p^2+b^2

14^2=10^2+b^2

196=100+b^2

196-100=b^2

96=b^2

[tex]\sqrt{96}[/tex] =b

4[tex]\sqrt{6}[/tex] =y

Step-by-step explanation:

• first triangle •

the third angle = 180-56-37 = 87°

the 4 cm's side is located between angle 56° and 87°

• second triangle •

the third angle = 180-56-37= 87°

the 4 cm' side is located between angle 37° and 87°

so, both of triangles are not congruent, because the 4 cm's side is not located between the same angles

Answer:

the answer is B.(-1,-2)

Step-by-step explanation:

please give brainliest

Answer:

83

Step-by-step explanation:

2x83=166-15