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3 years ago

Why do you flip the equation when solving something like 10>-9x+10?

Mathematics

1 answer:

Karolina [17]3 years ago

7 0

You flip the sign from > to < only when you are dividing by a negative number and in this case it would be negative 9.

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The rectangle shown has a perimeter of 54 cm and the given area. Its length is 3 more than 3 times its width. Write and solve a

algol13

Answer:

Step-by-step explanation:

the perimeter P=2(L+W)=54

P=2L+2W=54 OR L+W=27

we know that L=3W+3

P=3W+W=27-3

4W=24

W=6 CM

L=21CM

5 0

2 years ago

Which of the points A(5, −3),B(−2, 4), C(0, 0),D(2, 1), E(−5, 2.5) belong to the graph of y= 1 2 x?

ohaa [14]

Answer:

the slope makes no sense

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Pre-calc, Review the table of values for function h(x). (image attached)

GalinKa [24]

Answer:

$\lim_{x \to 10^+} h(x) = 18.5$

Step-by-step explanation:

As x approaches 10 from the right side, h(x) approaches 18.5 but never touches it.

3 0

3 years ago

Help please!<br> Sorry for the image quality.

VARVARA [1.3K]

Answer:

$\displaystyle (-1,\frac{-3}{2})$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Midpoint Formula: $\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-3, 1)

Point (1, -4)

<u>Step 2: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute [MF]: $\displaystyle (\frac{-3+1}{2},\frac{1-4}{2})$
[Fractions] Add/Subtract: $\displaystyle (\frac{-2}{2},\frac{-3}{2})$
[Fractions] Divide: $\displaystyle (-1,\frac{-3}{2})$

8 0

2 years ago

The sum of Ted's and Leon's ages is

olganol [36]

Answer:

Ted is 6 years old

Leon is 7 years old

Andrew is 8 years old

Step-by-step explanation:

Ted+Leon=13 ⇒T+L=13 ⇒L=13-T

Leon+Andrew=15 ⇒L+A=15 ⇒A=15-L ⇒A=15-(13-T) because Leon =13-Ted

A=2+T

Ted+Andrew=14

T+A=14 ( substitute Andrew age from A=2+T)

T+2+T=14

2T=12

<h2>T=12/2=6 (Ted is 6 years old)</h2><h2>A=2+T=2+6=8 ( Andrew is 8 years old)</h2><h2>Leon=13-T=13-6=7 ( Leons is seven years old)</h2>

check: Ted+Leon=13 ⇒ 6+7=13

Leon + Andrew=15 ⇒7+8=15

Andrew+Ted=14 ⇒ 6+8=14

7 0

3 years ago