Please help asap! if you could also explain how you did it so I can answer the other questions by myself

Answer:

[tex]x<-6[/tex]

Step-by-step explanation:

[tex]3x-2>5x+10[/tex]

Add 2 to both sides

[tex]3x-2+2>5x+10+2[/tex]

Simplify

[tex]3x>5x+12[/tex]

Subtract [tex]5x[/tex] from both sides

[tex]3x-5x>5x+12-5x[/tex]

Simplify

[tex]-2x>12[/tex]

Multiply both sides by [tex]-1[/tex] (reverse the inequality)

[tex](-2x)(-1)<12(-1)[/tex]

Simplify

[tex]2x<-12[/tex]

Divide both sides by [tex]2[/tex]

[tex]\frac{2x}{2} <\frac{-12}{2}[/tex]

Divide the numbers: [tex]\frac{2}{2} =1[/tex]

[tex]=x[/tex]

Divide the numbers: [tex]\frac{-12}{2}[/tex]

Apply fraction rule: [tex]\frac{-a}{b} =-\frac{a}{b}[/tex]

[tex]=\frac{12}{2}[/tex]

Divide the numbers: [tex]\frac{12}{2} =6[/tex]

[tex]=-6[/tex]

[tex]x<-6[/tex]

Answer:

x < -6

Step-by-step explanation:

I just took the test. When you are dividing by a negative variable, flip the sign.

Answer: 130

Step-by-step explanation:

20 X 40 = 80 + 50. = 130

Gina—her standardized score is higher than Colleen’s. The person who did better relative to their peers is Gina and this is because her standardized score is higher than Colleen

z = (x-μ)/σ, where x is the raw score, μ is the population mean, and σ is the population standard deviation.

For Gina

Gina took the SAT in 1994 and scored 500 on the Math test.

For Math scores, the mean under the old scale in the 1990s was 470 and the standard deviation was 110.

x = 500

μ = 470

σ = 110

Hence, the z score is given as:

z = 500 - 470/110

z = 0.27273

Gina's z or standardized score is 0.27273

For Colleen

Her cousin Colleen took the SAT in 2016 and scored 530 on the Math test.

In 2016 the mean was 510 and the standard deviation was 103.

x = 530

μ = 510

σ = 103

Hence, the z score is given as:

z = 530 - 510/103

z = 0.19417

Colleen's z or standardized score is 0.19147

learn more about of mean here

https://brainly.com/question/19520701

#SPJ4

The random variable r has a mean μ = 10 and σ = 4. For the variable s, the μ = 7 and σ = 3. The mean of r-s will be obtained by arithmetic subtraction of the μ for r and a. The standard deviation isn't independent since it's obtained by square root of the variance of a distribution. The standard deviation will be obtained by obtained through the square root of the squared sum of σ.

μ (r-s) = μ(r) -μ(s)

μ (r-s) = 10 -7 = 3

σ (r) -σ(s) = √(σ (r))²+ (σ (s))²

σ (r) -σ(s) = √(4²+ 3²)

σ (r) -σ(s) = √(16+ 9)

σ (r) -σ(s) = √25 = 5

thus, the mean is 3 and the standard deviation is 5.

Find out more on random variables at: brainly.com/question/27014983

#SPJ4

Answer:

triangle?duh ..........

The probability of winning one prize in 3 attempts is P = 0.41.

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.

Given that, the chance of winning a prize is 0.45, Kyle plays the game 3 times. we need to find the probability that she wins at most 2 prizes

Out of 3 attempts, the probability of winning one prize is:

P(1) = (0.45)x(0.55)²p

where p is the number of permutations, you can win on the first attempt, second attempt, or third attempt, so there are 3 permutations.

Then the probability is:

P(1) = (0.45)x(0.55)²x3 = 0.41

Hence, the probability of winning one prize in 3 attempts is P = 0.41,

Learn more about probability, click:

brainly.com/question/251701

#SPJ2

Answer: D 0.91

Step-by-step explanation:

Add 0.17 + 0.41 + 0.33 = 0.91

To get 0.17:

0.41 + 0.33 + 0.09 = 0.83

1 - 0.83 = 0.17

:)

Answer:

29

Step-by-step explanation:

[tex]f(x)=4x+9[/tex]

Substitute x = 5 in the equation.

[tex]f(5)=4(5)+9\\f(5)=20+9\\f(5)=29[/tex]

Therefore, the answer is 29. The third choice.

Answer:

x=−10

Step-by-step explanation:

Let's solve your equation step-by-step.

4(x−6)+2=6x−2

Step 1: Simplify both sides of the equation.

4(x−6)+2=6x−2

(4)(x)+(4)(−6)+2=6x+−2(Distribute)

4x+−24+2=6x+−2

(4x)+(−24+2)=6x−2(Combine Like Terms)

4x+−22=6x−2

4x−22=6x−2

Step 2: Subtract 6x from both sides.

4x−22−6x=6x−2−6x

−2x−22=−2

Step 3: Add 22 to both sides.

−2x−22+22=−2+22

−2x=20

Step 4: Divide both sides by -2.

−2x

−2

=

20

−2

x=−10

Answer:x=-10

Step-by-step explanation:4x-24+2=6x-2 -22+4x=6x-2 , 2x=-20 , x=-10

Answer:

it has 2 lines of symmetry 1 going across it diagonally and 1 going straight through the middle.

Step-by-step explanation:

Answer:

600 readers

Step-by-step explanation:

just do 100/5=20

and then 30x20=600 readers

Answer:

2/5

Step-by-step explanation:

5-3/2-(-3)=2/5

9514 1404 393

Answer:

  April

Step-by-step explanation:

The sequence of amounts saved is a geometric sequence. The sum of those amounts is given by the formula ...

  Sn = a1·(r^n -1)/(r -1)

where a1 is the amount saved in month 1, r is the common ratio, and n is the number of months. We want to find n such that ...

  150 ≤ 5(2^n -1)/(2 -1)

  30 ≤ 2^n -1

  31 ≤ 2^n

We can solve this using logarithms, or we can make use of our knowledge of powers of 2: 2^5 = 32. That is, n = 5 will be the first month when Jordan's total savings exceeds $150.

The fifth month will be April. Jordan's total savings will be enough in April.

__

The attached shows a spreadsheet that computes Jordan's amount of savings each month, and his running total. Once the formulas are written, they can be copied down as far as required to see where the total savings is enough.

Answer:

A) 21

Step-by-step explanation:

30% of 70 is 21

Answer:

B

Step-by-step explanation:

–x/4 < 7

–x < 28

x > –28

follow my account^^

Answer:

B. x > -28

Step-by-step explanation:

-x/4 < 7    =

Multiply both sides by 4

-x < 28

x > -28

Answer:

Restaurant A maybe because its the one with the least amount of money charged and guests.

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

y+4=−12(x−2)

Step 1: Add -4 to both sides.

y+4+−4=−12x+24+−4

y=−12x+20

Answer:

x = 4

Step-by-step explanation:

The transversal line is perpendicular to both the parallel lines. So ,

[tex]21x+6=90\\=>21x=90-6=84\\=>x = \frac{84}{21} = 4[/tex]

Answer:

1

Step-by-step explanation:

12 - 1 = 11

to solve for q all you had to do was 12-11=1 (switch 11 and one)

Hey there!

11 = 12 - q

-q + 12 = 11

SUBTRACT 12 to BOTH SIDES

-q + 12 - 12 = 11 - 12

SIMPLIFY IT!
-q = 11 - 12

-q = -1

-1q = -1

DIVIDE -1 to BOTH SIDES

-1q/-1 = -1/-1

SIMPLIFY IT!

q = -1/-1

q = 1

Therefore, your answer should be:

q = 1

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

the answer 95 degrees

Step-by-step explanation:

9/5*35*+32

Answer:

+9or -9 is the answer ☺️ you

Answer:

y will be equal to 0, 9, or 1

(y=0, 9, 1)

Answer:

The value of x:

Step-by-step explanation:

Given

[tex]b=4.8[/tex] in

[tex]c=9.3[/tex] in

a = x

we have to determine 'x'.

As the given triangle is a right-angled triangle.

Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as

[tex]c=\sqrt{a^2+b^2}[/tex]

so

[tex]a=\sqrt{c^2-b^2}[/tex]

as

substituting the values

[tex]x=\sqrt{9.3^2-4.8^2}[/tex]

[tex]x\:\approx \:8[/tex] in

Thus, the value of x:

Answer:

1215

Step-by-step explanation:

Answer:

1,215

Step-by-step explanation:

just multiply 27 &45

Answer:

y = 7 - 5x

Step-by-step explanation:

20x + 4y = 28

4y = 28 - 20x

y = 28/4 - 20x/4

y = 7 - 5x

-TheUnknownScientist

Answer:

y = [tex]\frac{2}{5}[/tex] x + 2

Step-by-step explanation:

Graph below.

Answer:

y = 2/5x + 2

Step-by-step explanation:

y = mx + b

First, we find out the slope. The slope is the change in y over the change in x.

The change in y is the second y-value subtracted from the first. The first y-value is 0 and the second is 2.

0 - 2 = -2

The change in x is the second x-value subtracted from the first. The first x-value is -5 and the second is 0.

-5 - 0 = -5

The slope is the change in y over the change in x.

-2/-5 = 2/5

y = 2/5x + b

b is the y-intercept, which is the value of y when x = 0.

When x = 0, y = 2 (0,2), so b = 2.

y = 2/5x + 2

Hope this helps!

Answer:

The second one or B- "He did not find the prime factors of 4."

Step-by-step explanation:

I got it right on Edge2020

Answer:

B

Step-by-step explanation:

Answer:

x is greater than or equal to 1

Step-by-step explanation:

The value of the fourth term in a geometric sequence is 3/8.

We are meant to find the value of the fourth term in a geometric sequence for which a1 = 3- and r = 1/2.

It should be noted that the formula will be:

ar^n-1

where n = 4

r = 1/2

a = 3

Therefore, ar^n-1 = ar^(4-1) = ar³

= ar³.

= 3(1/2)³

= 3 × 1/8

= 3/8

Thw 4th term is 3/8.

Learn more about sequence on:

brainly.com/question/6561461

#SPJ1

9514 1404 393

Answer:

  22/44

Step-by-step explanation:

The probability of black is the ratio of black cards to all cards. If the Ace and 2 are removed from each suit, there will be 11 of the 13 cards remaining. 2 suits are black, for a total of 2×11 = 22 black cards. Of course there are 4 suits altogether, for a total of 4×11 = 44 total cards. Then you have ...

  P(black) = (black cards)/(total cards)

  P(black) = 22/44

_____

You are expected to be familiar with the fact that a deck of 52 playing cards consists of 4 suits: diamonds, clubs, hearts, spades. Each suit has 13 cards, identified as Ace, 2, 3, ..., 10, Jack, Queen, King. The clubs and spades are black; the diamonds and hearts are red.