Please answer as many as you can

1. Best Buy was having a 20% off sale on all flat-screen TVs. What would the sale price of a $350.50 TV be?
2. Solve -3( x - 3) = 12
3. Factor 45t - 15
4. Simplify ( 3.5m + 2) - ( 4.3m - 8)
5. If the length of a rectangle is 6x - 2 and the width is 5x + 1, simplify an expression that will represent the perimeter.

I understand if you can't do all 5, but it would be greatly appreciated if you did.

Answer:

(1) First pair; (2, 3), (7, 3), d₁ = 5

(2) Second pair; (-2, 5), (-2, -3), d₂ = 8

(3) Third pair; (-8, 5), (-2, 5), d₃ = 6

(4) Fourth pair; (-9, 1), (6, 1), d₄ = 15

Step-by-step explanation:

Given pair of points;

(1)  (2, 3), (7, 3)

(2) (-2, 5), (-2, -3)

(3) (-8, 5), (-2, 5)

(4) ) (-9, 1), (6, 1)

The distance between each pair of points is calculated as follows;

[tex]d = \sqrt{(y_2-y_1)^2 + (x_2-x_1)^2}[/tex]

(1) first pair; (2, 3), (7, 3)

[tex]d_1 = \sqrt{(3-3)^2 + (7-2)^2} \\\\d_1 = 5[/tex]

(2) second pair; (-2, 5), (-2, -3)

[tex]d_2 = \sqrt{(-3-5)^2 + (-2-(-2))^2}\\\\d_2 = \sqrt{(-3-5)^2 + (-2+2)^2} \\\\d_2 = 8[/tex]

(3) Third pair; (-8, 5), (-2, 5)

[tex]d_3 = \sqrt{(5-5)^2 + (-2-(-8))^2}\\\\d_3 = \sqrt{(5-5)^2 + (-2+8)^2} \\\\d_3 = 6[/tex]

(4) Fourth pair; (-9, 1), (6, 1)

[tex]d_4 = \sqrt{(1-1)^2 + (6-(-9))^2}\\\\d_4 = \sqrt{(1-1)^2 + (6+9)^2} \\\\d_4 = 15[/tex]

Answer:

..

Step-by-step explanation:.

Answer:

x=16 or any value less than 16.

Step-by-step explanation:

16x5=80 and subtract 10 you get 70. X has to equal a value that makes the whole left side of the equation "smaller" than the irght side, and 16 or any value less than that would accomplsish this.

.Step-by-step explanation:

Answer:

C. Log base b (a) - Log base b (d)

Step-by-step explanation:

In logarithm, log means index or exponent. It can be explained with following example. Consider 2^5 = 32

here index = log = 5 so you can write the log of 32 = 5

Consider 64/16 = 4

now 64 = 2^6 and 16 = 2^4

We can write log 2(64) = 6 and log2(16)=4

Now log 64/16= log 4= 2

Also log2(64)-log2(16)=6-4=2

Therefore

Log base b (a/d) = Log base b (a) - Log base b (d)

Answer:

ok and what's the question? （*゜ー゜*）

Step-by-step explanation:

Answer:

add x

Step-by-step explanation:

1)sx*tx

2)sx+tx

3)s-t

Answer:

69

Step-by-step explanation:

Answer:

First option,   [tex]\frac{-2y+5x}{3x-2y}[/tex]

Step-by-step explanation:

Simplify the fraction. To make the process of solving easier, we can multiply both the numerator and denominator by x and y to get rid of the fractions as seen below. This is because the variables in the denominators of the fractions will cancel out with either the matching x or y in the numerators.  

[tex]\frac{\frac{-2}{x} +\frac{5}{y} }{\frac{3}{y}-\frac{2}{x} } \\=\frac{(\frac{-2}{x} +\frac{5}{y})xy }{(\frac{3}{y}-\frac{2}{x})xy }\\=\frac{-2y+5x}{3x-2y}[/tex]

Thus, the first option is correct.

Answer:

I did the figure

mark brainliest if comfortable :)

Answer:

Part A and D: Cubic function, Part B and C: Quadratic function,

Step-by-step explanation:

Answer:

C.37

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

I guessed hehehegshsbsbs

Answer:

31/40 Hope this helps!

Step-by-step explanation:

Answer:

The answer for this question is 31/40

Answer: 21 questions

Step-by-step explanation:

Turn it into a number sentence.

72% of x amount of questions is 15

0.72(x) = 15. Divide both sides by 0.72

x= 20.83333 round to nearest whole number

x= 21 questions

Answer: 460 students

Step-by-step explanation:

Based on the information given in the question, let the total number of students that attend I.S. 59 be represented by x.

Since we've been given the information that 230 signed up for the school picnic which was 50% of all students in the school. Then, the students in the school will be:

= 50% of x = 230

0.5 × x = 230

0.5x = 230

x = 230/0.5

x = 460

Therefore, 460 students attend the school.

Answer:

x = 3

Step-by-step explanation:

use the substitution method

since y = 6 fill in 6 for y in y = -5x + 21

6 = -5x + 21

subtract 21 from both sides

-15 = -5x

divide each side by -5

3 = x

hope this helps :)

Answer:

d

Step-by-step explanation:

i looked up the answers

The length of AC is 6.4 unit.

The correct option is C.

We have the figure from which we can say that

BD is the diameter which is

= 4.8 + 1.6

= 6.4 unit long.

Now, AC is the chord.

As, the distance between the two opposite point the the surface of circle would be same.

Then, the length of AC = length of BD

Thus, the length of AC is 6.4 unit.

Learn more about Circle here:

https://brainly.com/question/29142813

#SPJ2

Answer:

yup its right

Step-by-step explanation:

Answer:

(a+6)(a-2)=a^2-4a-12

Step-by-step explanation:

Answer:

1) -15+8i

2) x^2+2x-5

Step-by-step explanation:

1) apply perfect square formula

(4i)^2+2*4i1+1^2

then simplify

2)remove parentheses

x+1+(x-2)(x+3)

expand (x-2)(x+3)

x+1+x^2+x-6

simplify x+1+x^2-6 = x^2+2x-5

Answer:

6m - 15 = 9m+9

Step-by-step explanation:

Looking at option b;

6m - 15 = 9m+9

Collect the like terms

6m-9m= 9 + 15

-3m = 24

Divide both sides by -3

-3m/-3 = 24/-3

m = -8

Hence the equation that has -8 as solution is 6m - 15 = 9m+9

Answer:

it is the second one:

4x(5-4y)

Answer:

100 times smaller

Step-by-step explanation

48.6 / 0.486 = 100

67x + 90

    10

Please tell me im smart, lol

Answer:

yes

Step-by-step explanation:

nothing in the x is repeating

Answer:

6cm

Step-by-step explanation: hey u yea u ur kinda sus ngl

Answer: 48

Step-by-step explanation:

yes

Answer:

Simplify  {4}^{2}42  to  1616.

-16+2\times -4\times -5-2\times {2}^{3}−16+2×−4×−5−2×23

Simplify  2\times -42×−4  to  -8−8.

-16-8\times -5-2\times {2}^{3}−16−8×−5−2×23

Simplify  8\times -58×−5  to  -40−40.

-16-(-40)-2\times {2}^{3}−16−(−40)−2×23

Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}xaxb=xa+b.

-16-(-40)-{2}^{4}−16−(−40)−24

Simplify  {2}^{4}24  to  1616.

-16-(-40)-16−16−(−40)−16

Remove parentheses.

-16+40-16−16+40−16

Simplify  -16+40−16+40  to  2424.

24-1624−16

Simplify.

8

Step-by-step explanation:

hope it helps :)

Answer:

the pork has a greater unit rate of $3.63

Step-by-step explanation:

You divide each number so that you denominator is one because it is a unit rate.