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3 years ago

I don't know how to do this can you plz help?

Mathematics

2 answers:

Vanyuwa [196]3 years ago

7 0

sin45=5/x so x is 5/(sin45)

y is 5/(tan45)

question 5 then you just go x= (9sqrt(2)/2)/sin45

i don’t have a calculator rn so just plug it into it

amid [387]3 years ago

6 0

Answer:

3) x and y are both 5

Step-by-step explanation:

It’s just the 45-45-90 triangle

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Find the simple interest on 7,200 at 3/4% for 5 years

lakkis [162]

Answer:

$7474.08

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Simple Interest Rate Formula: $\displaystyle A = P(1 + r)^t$

A is final amount
P is principle (initial) amount
r is rate
t is time (in years)

Step-by-step explanation:

Step 1: Define

P = 7200

r = 0.75% = 0.0075

t = 5

Step 2: Solve for A

Substitute in variables [Simple Interest Rate Formula]: $\displaystyle A = 7200(1 + 0.0075)^5$
(Parenthesis) Add: $\displaystyle A = 7200(1.0075)^5$
Evaluate exponents: $\displaystyle A = 7200(1.03807)$
Multiply: $\displaystyle A = 7474.08$

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3 years ago

I don't know how to do this can you plz help? ​

I don't know how to do this can you plz help?