Help pls i’ll also rate brainliest

Answer:

[tex] \frac{21 {a}^{3} }{3 {a}^{2} } = 7a[/tex]

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

[tex]3x + 2y - 2x + y \\ = x + 3y[/tex]

I hope I helped you^_^

Answer:

a = 7a, b = [tex]2x^2 - yx - y^2[/tex]

Step-by-step explanation:

a. 21 / 3 = 7. [tex]a^3 / a^2 = a[/tex] (exponents are basically subtracted when dividing), creating 7a

b. [tex](2x + y)(x-y)[/tex]

Use FOIL for this or use the distributive property, either way. Then combine like terms

[tex]2x^2 - 2xy + yx - y^2[/tex]

[tex]2x^2 - yx - y^2[/tex]

Answer:

the normal distribution is a symmetric distribution with no skew. ... A left-skewed distribution has a long left tail. Left-skewed distributions are also called negatively-skewed distributions. That's because there is a long tail in the negative direction on the number line.

Answer:

the answer is D

Step-by-step explanation:

because I'm right

Answer:

[tex]all \: real \: numbers \: except \: \\ x + 3 < 0 \\ \: \: \: \: x < - 3[/tex]

Answer:

X is the domain and sqr root of X+3 is the range.

Answer:

p = 4a

p = a+a+a+a

Step-by-step explanation:

the first one is shorter

Answer:

C

Step-by-step explanation:

The answer is C

Answer:

(x-1.5)^2 -2.25

Step-by-step explanation:

divide 3 by 2 which is 1.5

(x-1.5)^2 -2.25

Answer:

mean: 26

median: 28

mode: 28

range:19

Step-by-step explanation:

hipe this helped hun

Step-by-step explanation:

M={January, February, March, April, May, June, July, August, September, October, November, December}

Answer: x < 7  

Step-by-step explanation:

answer:

Times it or multiply to get 2800000 then It should be B meter's by seconds.

Step-by-step explanation:

Answer:

-3

Step-by-step explanation:

6 + (six more) 3x (3 times a number) = x (is equal to the number)

6 + 3x = x

6 + 2x = 0

2x = -6

x = -3

Answer:

TRUE

If a triangle has three congruent angles, it is be equiangular. Since congruent angles have congruent sides opposite them, all sides in an equiangular triangle will also be congruent. Therefore, every equiangular triangle is also equilateral

9514 1404 393

Answer:

  2.77

Step-by-step explanation:

Usually we like to do long division with the divisor being an integer. Here, that means the decimal points in both numbers are moved one place to the right. This makes the division be 141.27/51 = 2.77. The work is shown in the attachment.

9514 1404 393

Answer:

Step-by-step explanation:

We can define a "basic unit" of each team to be the minimum number of players and coaches that can have the given ratio. For the Tigers, that is 1 coach and 9 players, for a total of 10 team members. For the Eagles, that is 2 coaches and 17 players, for a total of 19 team members. If we have t basic units of Tigers and e basic units of Eagles, then we want ...

  10t +19e = 232 . . . . . the total of players and coaches in the two clubs

We want t and e to be integers, so this is a Diophantine equation. It can be solved any of several ways, including use of the Extended Euclidean Algorithm. Here, we'll make some observations based on "number sense."

The value of e must be an even number between 0 and 232/19 = 12. The product of e and 19 must be a number that ends in 2, because 10t will end in 0, and the sum with 19e must end in 2.

The only multiple of 9 that ends in 2 is 9×8 = 72, so the value of e must be a positive number less than 12 that ends in 8. We must have e=8.

Then t=(232 -8×19)/10 = 8. This tells us there are 8 "basic units" of each team.

The Tigers have 8 coaches and 72 players.

The Eagles have 16 coaches and 136 players.

Answer:

formula= 6ssquare

Step-by-step explanation:

where s is the length of the cube on each side

Hi

it's means multiplicate your number by 40/100 ie : 0.4

have a try. Math is all about method and practice.

Answer:

[tex] - \frac{11}{3} \: \: » \: \: 90\% \: » \: \: 2 \: \: » \: \: \frac{89}{4} [/tex]

Answer:

16. 42

21. 18

Step-by-step explanation:

Answer:

21~5

becouse 21 Is bigger than 5w

Answer:

he drove 192 miles

Step-by-step explanation:

why bc I did 0.85 x 192= 183.15

so that makes 192 the miles Chris drove

(1) Along the x-axis, we have y = 0, so that

[tex]\displaystyle\lim_{(x,y)\to(0,0)} \frac{3x^2}{4x^2+4y^2} = \lim_{x\to0} \frac{3x^2}{4x^2} =\lim_{x\to0}\frac34= \frac34[/tex]

(2) Along the y-axis, we take x = 0, then

[tex]\displaystyle\lim_{(x,y)\to(0,0)} \frac{3x^2}{4x^2+4y^2} = \lim_{y\to0} \frac0{4y^2} = 0[/tex]

(3) Along the line y = mx, we have

[tex]\displaystyle\lim_{(x,y)\to(0,0)} \frac{3x^2}{4x^2+4y^2} = \lim_{x\to0} \frac{3x^2}{4x^2+4(mx)^2} = \lim_{x\to0}\frac{3x^2}{4x^2+4m^2x^2} = \frac3{4+4m^2}[/tex]

which means the limit is dependent on the slope of the line m.

(4) nonexistent

Answer:

m = (6-5)/(4-1)

m = 1/3

.............

Answer:

183 centimeters

Step-by-step explanation:

2 multiply the length value by 91.44

Answer:

y

Step-by-step explanation:

Answer:

Length of a pen

Step-by-step explanation:

Because it is comparatively smallest than other,

and we use inches method to measure smaller length.

Answer:

Brandy would be payed $450 for 30 hours

Step-by-step explanation:

102÷8= 15

15×8= 102

15 dollars is what he makes hourly

30 hours× 15= 450

Check the pictures attached for the answers.

Answer:

9 is the correct answer

hope that it will help you