MATHEMATICS HIGH SCHOOL

Evaluate the expression, using the given value of the variable.4 – 2x + 5x when x = 4

A.
–24

B.
–18

C.
16

D.
28

Answers

Answer 1
Answer: = 4 -(2)(4) + (5)(4) \n =4 - 8 + 20 \n = 16x = 16
Answer 2
Answer: 4-2x+5x \n 4-2(4)+5(4) \n 4-8+20 \n -4+20 \n =16 \n A.16

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Answers

Answer:

  see below

Step-by-step explanation:

When you're doing a bunch of these, it is helpful to make a table with reminders as to how they're calculated. That table is shown below.

__

In the attached, we have used ...

  r² = x² +y²

  √20 = 2√5

  √36 = 6

  √25 = 5

and 1/(2√5) = √5/10. (The division is outside the radical.)

What is A ∩ B?    Let set A = {odd numbers between 0 and 100} and set B = {numbers between 50 and 150 that are evenly divisible by 5}.

Answers

A=\{1;\ 3;\ 5;\ 7;\ 9;...;\ 99\}\n\nB=\{50;\ 55;\ 60;\ 55;\ 70;...;\ 150\}\n\nA\ \cap\ B=\{55;\ 65;\ 75;\ 85;\ 95\}

What is the area, in square meters, of the shaded part of the rectangle below?6 m
14 m
13 m

Answers

Answer:

130 square metres

Step-by-step explanation:

The shaded area is a trapezium.

Therefore, the rule for its area is base1+base2/2xh

base1=6

base2=14

height = 13

Therefore, 6+14/2 x 13

= 130

Hope that helped!!! k

Answer:

130 meters squared

Step-by-step explanation:

14-6=8

8*13/2=52

14*13=182

182-52=130 meters

A local little league has a total of 95 players of whom 80% are left handed how many left handed players are there

Answers

95 × 80% = 76
95 - 76 = 19

What is the product of 3x(x2 + 4)?

Answers

The product of the expression {3x(x² + 4)} as (3x³ + 12x).

What is expression?

In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is the expression as -

3x(x² + 4)

We can write the product as -

3x(x² + 4)

3x(x²) + 3x(4)

3x³ + 12x

Therefore, the product of the expression {3x(x² + 4)} as (3x³ + 12x).

To solve more questions on expressions, visit the link below -

brainly.com/question/1041084

#SPJ3
distributive property
a(b+c)=ab+ac
remember
(x^m)(x^n)=x^(m+n)

so

3x(x^2+4)=
(3x)(x^2)+(3x)(4)=
(3x^3)+(12x)=
3x^3+12x

Some equations have the form y=kx, where k is a number. Which equation CANNOT be written in the form y=kx?

Answers

Hello from MrBillDoesMath!

Answer:

y = x - 7

Discussion:

Let's step through the answers one-by-one:

y/6 = x             => multiply both sides by 6

y = 6x

y = kx where k = 6

y/x = 1/2          => multiply both sides by x

y = (1/2) x

y = kx where k = 1/2

y = -0.5x

y = kx where k = -0.5

BUT y = x -7 cannot be written simply as y = kx because of the -7 term.

Thank you,

MrB

Answer:

C. y = x - 7

Step-by-step explanation:
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