compounds are pure substances. What other substances are considered pure substances? A: chemical reactions B: elements C: mixtures D: solutions

Answers

Answer 1

Answer:

Step-by-step explanation:

B


Related Questions

More coins for youuu + follow for brainliest :)​

Answers

Answer:

10 + 78.567 = 88.567

Step-by-step explanation: thank you

Show that the two triangles ABC and DEF are congruent by the
HL theorem.

Answers

Since hypotenuses and legs have the same length, then both are congruent and thus, triangles ABC and DEF are congruent.

The Hypotenuse-Leg theorem states that two right triangles are congruent if and only if their hypotenuses and any of their corresponding legs are congruent. That is to say:

[tex]\overline {AC} \cong \overline {DF}[/tex], [tex]\overline{BC} \cong \overline {EF}[/tex]

[tex]AC = DF, BC = EF[/tex]

[tex]\sqrt{AB^{2}+BC^{2}} = \sqrt{DE^{2}+EF^{2}}[/tex], [tex]BC = EF[/tex]

If we know that [tex]AB = 10[/tex], [tex]BC = 4[/tex], [tex]DE = 10[/tex] and [tex]EF = 4[/tex], then we have the following outcomes:

[tex]\sqrt{10^{2}+4^{2}} = \sqrt{10^{2}+4^{2}}[/tex]

[tex]4 = 4[/tex]

Since hypotenuses and legs have the same length, then both are congruent and thus, triangles ABC and DEF are congruent.

We kindly invite to check this question on triangles: https://brainly.com/question/21972776

Jamie saw 12 ducks on the lake. When Jamie said that 1/2 of the ducks swam away, how many ducks was that?

a) 8
b) 4
c)6

Answers

6
12 divided my 2 is 6
or 6 + 6 is 12.
Hope this helps

Which is the area between the x-axis and y=x from x=1 to x=6

Answers

Answer:

I am going to answer using calculus. Let me know if you instead were looking for an algebraic method. Take the definite integral from 3 to 6 of xdx. [x^2/2]3 to 6= 18-(9/2)= (36-9)/2= 27/2. The area is 27/2

Solve for brainlist ( you can take your time )

Answers

Answer:

Slope for...:

7: 1

8: -2

9: 12/0

10: 4/3

11: 2/-7

12: 0/4

13: -1/3

14: 5/9

15: 1/4

Hope this helps!

A chess club 20 with members is electing a new president. Lashonda received 8 votes. What percentage of the club members voted for Lashonda?

Answers

Answer:

Lashonda is not popular. She only received 40% of the votes.

Step-by-step explanation:

8/20 can be simplified to 2/5. If 1/5 is equal to 20%. Then 2 times 20% is 40%.

Directions: Divide. Put your answer inside the box.1/4 ÷ 2/3 = ____

Answers

Answer:

3/8

Step-by-step explanation:

[tex]\frac{1}{4} / \frac{2}{3}\\\\\frac{1}{4} *\frac{3}{2} = \frac{3}{8} \\\\[/tex]

1.21 rounded to the nearest whole number​

Answers

1.2

1 is the whole number and to round you look one place over, in this case the number one over to the left if 2. If the number to the left is 5 or more you “raise the score” making the number your rounded go up one. If the number is 4 or less, you “let it rest” meaning the number stays the same. Once you round, you drop every number behind the number you used to round. So instead or 1.21 it’s 1.2

How do i simplify this question?

Answers

16a5 b7
you just needed to multiply the numbers

The perimeter of a triangle is 17x−5 units. One side is 3x+5 units and another is 8x−3 units. How many units long is the third side?

Answers

9514 1404 393

Answer:

  6x -7 units

Step-by-step explanation:

Let c represent the length of the third side. The perimeter is the sum of the three side lengths.

  P = a + b + c

  (17x -5) = (3x +5) +(8x -3) +c

 17x -5 = 11x +2 + c . . . . . . . . . . . . collect terms

  6x -7 = c . . . . . . . . . . . . . . subtract 11x+2

The third side is 6x -7 units.

The Hulk just flew into the Boston airport to visit some family, but due to car problems, they are
unable to pick him up. He only has $20 on him. He needs to call a cab that costs $1.75 initially and
$.65 per mile. How far will he be able to go? If his family lives 25 miles away, will the cab be able to
get him to his family?

Answers

Answer:

Yes, he will be able to afford 25 miles

Step-by-step explanation:

20.00 - 1.75 = 18.25

He will have $18.25 after the initial payment.

18.25 / 0.65 = 28~

He will be able to go 28 miles with the 18 dollars he has left.

ayuda
encuentra el valor de la hipotenusa ​

Answers

Answer:

113. x = √65 cm

114. x= 7.10 cm

Please answer number 11 thank you!

Answers

Answer:

9 portions and 15 grams in each portion

write the equation of the line that is parallel to y=2x+1

Answers

Answer:

y = 2x, y = 2x+2, y=2x+100, y=2x-57, etc.

Step-by-step explanation:

Any line with the same slope will be parallel.

Classify the system of equations and identify the number of solutions.
4x + 2y = −8
6x + 3y = 9
inconsistent; none
consistent, dependent; one
inconsistent; one
consistent, dependent; infinite
HELP ASAP PLS

Answers

Answer:

inconsistent, none

Step-by-step explanation:

Write both equations in slope-intercept form to see if the lines are parallel.

These two lines have slope m = −2 and different y-intercepts, therefore they are parallel.

Since the lines are parallel, the system is inconsistent and there are no solutions.

The system of equations  4x + 2y = −8 6x + 3y = 9 is inconsistent and has no solutions.

What is system of Equations?

A system of equations is a collection of two or more equations with a same set of unknowns.

We need to write both equations in slope-intercept form to see if the lines are parallel.

4x+2y=-8

2y=-8-4x

y=-4-2x,

y=-2x-4, m₁=-2

and 6x+3y=9

3y=9-6x

y=-2x+3, m₂=-2.

So two lines have slope m = −2 and different y-intercepts,

It means two line are parallel.

Since the lines are parallel, the system is inconsistent and there are no solutions.

Hence 4x + 2y = −8 , 6x + 3y = 9 is inconsistent and has no solution.

To learn more on system of equations click:

https://brainly.com/question/24065247

#SPJ2

help pls
what is the slope intercept form of (4,0) and (0,5)

Answers

Answer: y = -5/4x+5

Hope this helps!!!

Jose needs 6.2 lb of organic blueberries to make smoothies. Organic blueberries are on sale for $2.85 per pound. Jose estimates that he will need $12 to buy the 6.2 lb of blueberries. What is Jose’s error?

1. Jose did not make an error. His estimate of $12 is correct.
2. Jose incorrectly rounded $2.85 down to $2. The estimate should be $18.
3. Jose incorrectly rounded 6.2 up to 7.
4. Jose incorrectly multiplied 2 and 7. The estimate should be $14.

Answers

Answer: Jose incorrectly rounded $2.85 down to $2. The estimate should $18.

Step-by-step explanation:

lol i had this question

he table shows ordered pairs of the function y= 8-2x What is the value of y when x=8 ?

A 2-column table with 6 rows. The first column is labeled x with entries negative 3, negative 1, 1, 4, 8, 10. The second column is labeled y with entries 14, 10, 6, 0, question mark, negative 12.

–20
–8
8

Answers

Step-by-step explanation:

Reorder

8

and

2

x

.

y

=

2

x

+

8

sorry if wrong

0.43 as a fraction ?

Answers

Answer:

43/100

Step-by-step explanation:

select the exspressions that are equivalent to 6(3p +2)+2

Answers

Answer:

18p + 14

Step-by-step explanation:

6

(

3

+

2

)

+

2

{\color{#c92786}{6(3p+2)}}+2

6(3p+2)+2

1

8

+

1

2

+

2

How do you solve these two problems please explain step by step

Answers

Answer:

1) [tex]x=15, y=41[/tex]

2) [tex]x=6, y=24[/tex]

Step-by-step explanation:

1)

The two triangles are similar by AA similarity.

That means [tex]5x-5=4x+10[/tex].

We can add [tex]5[/tex] to both sides to get [tex]5x=4x+15[/tex].

We can then subtract [tex]4x[/tex] from both sides to get [tex]x=15[/tex].

We know that the [tex](5x-5)+(6y-4)=180[/tex]  because they both lie on a straight line.

We can plug in for [tex]x[/tex] to get [tex](5(15)-5)+(6y-4)=75-5+6y-4=6y-66=180[/tex].

We can divide both sides of the equation by [tex]6[/tex] to get [tex]y-11=30[/tex].

We then add [tex]11[/tex] to both sides to get [tex]y=41[/tex].

So, [tex]\boxed{x=15, y=41}[/tex] and we're done!

2)

Because the two bases of a trapezoid are parallel, meaning adjacent top and bottom angles sum to [tex]180^{\circ}[/tex], we have that [tex]90+3y+18=180[/tex].

We can subtract a [tex]90[/tex] and an [tex]18[/tex] from both sides to get [tex]3y=72[/tex].

We then divide both sides of the equation by [tex]3[/tex] to get [tex]y=24[/tex].

We do the same thing for [tex]x[/tex]. On the other side of the trapezoid, we have that [tex]15x+30+10x=180[/tex].

We combine like terms on the left side to get [tex]25x+30=180[/tex].

We subtract a [tex]30[/tex] from both sides to get [tex]25x=150[/tex].

We divide both sides of the equation to get [tex]x=6[/tex].

So, [tex]\boxed{x=6, y=24}[/tex] and we're done!

Please someone help best answer gets brainleist

Answers

Answer:

B

Step-by-step explanation:

it will never cross so it's b

Gibson's Department Store is having a clearance sale and has decreased everything in the
store by 35%. How much will Gloria pay for a pair of earrings that were originally
$15.75?
A. $13.75
C. $12.75
B. $10.24
D. $12.24

Answers

Answer:

B. :>

Step-by-step explanation:

B, rounded from what i got which is 5.51, just rounded it to see the answer, and i got B

Rachel earned $54.79 last week. Morgan earned $50.23. About how much more did Rachel earn?

Answers

Answer:

$4.56

Step-by-step explanation:

It would be $4.56
You would do 54.79-50.23

Approximately how much greater, in grams is 191520 than 146640

Answers

191520 grams is greater than 146640 grams by 44,880 grams

I just did the problem -(-8) -(-2) and i think the answer is 12. am i right​

Answers

Answer:

I got 10 as the answer

Step-by-step explanation:

-(-8)-(-2)

8-(-2)

8+2

10

Answer:

is it -(-8) -(-2) or

(-8) -(-2) cause

I think you can use a number line which comes to a +6

Did I do this right?

Answers

Yeah that’s correct
Yea that’s correct!!!!
Good job!!!

Please help me with this!!

Answers

Answer:

15.6

Step-by-step explanation:

1 times 12 is 12 3/10 of 12 is 3.6 12+3.6=15.6

Answer:

$15.60

Step-by-step explanation:

multiply 1.3 (which is the same as 1 3/10) and 12


A card is drawn from a 52-card deck, the result is written down, and then the deck is shuffled. A card is drawn. What is the probability that at least one of the two cards was red? Write your answer as a percent

Answers

Answer:

1/2 or 50%

Step-by-step explanation

Answer:

75%

Step-by-step explanation:

To find probability of one being red, do 1 minus probability of being black.

1/2*1/2=1/4

1-1/4=3/4

=75%

What is the value of 4C9 ?

Answers

Answer:

the value is 126

Step-by-step explanation:

have a good day

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