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2 years ago

Can someone tell me what's a good book for college algebra 1?

Mathematics

2 answers:

Sindrei [870]2 years ago

8 0

College Algebra Essentials by Julia Miller

elena-s [515]2 years ago

3 0

surprisingly i found algebra one for dummies to be a good book that helps.

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Write an equivalent expression for 5+2+2x+2 please help me

patriot [66]

Answer:

2x+9

Step-by-step explanation:

You have to combine like terms. 2x stays the same because there are no other like terms, but 5, 2, and 2 can be added together to make 9

8 0

2 years ago

use the picture to write each ratio as a simplified fraction (how are you going to find the length of the third side?) show your

Butoxors [25]

Answer:

<h3>See below</h3>

Step-by-step explanation:

to figure out the ratios we must figure out the length of hypotenuse first to do so we can consider Pythagoras theorem given by

$\displaystyle {a}^{2} + {b}^{2} = {c}^{2}$

$\displaystyle \implies c = \sqrt{ {a}^{2} + {b}^{2} }$

substitute:

$\displaystyle c = \sqrt{ {12}^{2} + {9}^{2} }$

simplify squares:

$\displaystyle c = \sqrt{ 225 }$

simplify square root:

$\displaystyle c = 15$

now recall that,

$\displaystyle \sin( \theta) = \frac{opp}{hypo}$
$\displaystyle\cos( \theta) = \frac{adj}{hypo}$
$\displaystyle \tan( \theta) = \frac{opp}{adj}$

the ratios with respect to angle w given by

$\displaystyle \sin( W) = \frac{12}{15} = \frac{4}{5}$
$\displaystyle \cos(W) = \frac{9}{15} = \frac{3}{5}$
$\displaystyle \tan( W) = \frac{12}{9} = \frac{4}{3}$

the following ratio with respect to angle X

$\displaystyle \sin(X) = \frac{9}{15} = \frac{3}{5}$
$\displaystyle \cos(X) = \frac{12}{15} = \frac{4}{5}$
$\displaystyle \tan( X) = \frac{9}{12} = \frac{3}{4}$

7 0

2 years ago

Could I get some help PLEASE!!

kati45 [8]

Not similar, since the ratio of corespondent side is not constant
suppose ∆PRQ ~ ∆MRN, then RN/RP = RM/RQ but the reality contradict

4 0

2 years ago

ASAP

pav-90 [236]

Answer:

+ 2 is a value for "C"

if the general form is ax^2 + bx +c and you want the A to be a positive integer...

then the c value would be -8

3x^2 - 8 = 0

Step-by-step explanation:

3 0

2 years ago

Solve for c. C – 206 = 304 Solve c

horrorfan [7]

Answer:

C = 510

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Step-by-step explanation:

Step 1: Define

Identify

C - 206 = 304

Step 2: Solve for C

[Addition Property of Equality] Add 206 on both sides: C = 510

3 0

2 years ago

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