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3 years ago

cheryl says that when you add two negative numbers, the sum is always negative. is Cheryl's statement true of false?

Mathematics

2 answers:

fenix001 [56]3 years ago

8 0

Answer:true

Step-by-step explanation:It’s because anytime a negative number is added by another negative number the result is always negative.

Andrews [41]3 years ago

5 0

Answer:

wwo

Step-by-step explanation:

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Let x^2+18x=44 . What values make an equivalent number sentence after completing the square?

Lostsunrise [7]

To find the final term to compete the square you need to divide the 'x' term by 2 then square it

$x^2 +18x + = 44+ \\ x^2+18x+( \frac{18}{2} )^2=44+( \frac{18}{2} )^2 \\ x^2+18x+9^2=44+9^2 \\ x^2+18x+81=44+81 \\ (x+9)^2=125$ - equivalent equation

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4 years ago

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Solve P = 8/3 R + 30 for R.

vampirchik [111]

Answer:

R = (3P-30)/8

Step-by-step explanation:

subtract 30 from each side to get:

P-30 = $\frac{8}{3}$ R

multiply each side by $\frac{3}{8}$ to get:

$\frac{3}{8}$ · P - 30 = R

R = (3P-30)/8

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3 years ago

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creativ13 [48]

The correct answer is 4090

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2 years ago

What is product of 3x-4 an 5x^2-2x+6 help me please, please, please

Fofino [41]

(3x-4)(5x^2-2x+6)
15x^3-6x^2+18x-20x^2+8x-24
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3 years ago

G(x) = x3 - 4 h(x) = x2 + 2 Find h(-2) - g(-1)

Lady bird [3.3K]

Answer:

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

g(x) = x³ - 4

h(x) = x² + 2

h(-2) is x = -2

g(-1) is x = -1

Step 2: Find h(-2) - g(-1)

Substitute: ((-2)² + 2) - ((-1)³ - 4)
Exponents: (4 + 2) - (-1 - 4)
Add/Subtract: 6 - (-5)
Subtract: 11

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3 years ago