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alekssr [168]
3 years ago
14

Help geometry question

Mathematics
1 answer:
loris [4]3 years ago
6 0

Answer: x=16 t=5

Step-by-step explanation:

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Solve the pair of simultaneous equations and leave the answer as a fraction in
Elena-2011 [213]

Answer:

x = 11/3 = 3 2/3

y = 13/3 = 4 1/3

Step-by-step explanation:

Here, we want to solve the system of equations simultaneously

x + y = 8

2x -3 = y

From the second equation, we have an equation for y

we can simply proceed to substitute this into the first equation

x + 2x - 3 = 8

3x - 3 = 8

3x = 8 + 3

3x = 11

x = 11/3

Recall;

y = 2x - 3

y = 2(11/3) - 3

y = 22/3 - 3

y = (22-3(3))/3

y = (22-9)/3 = 13/3

6 0
2 years ago
Lucy deposits $7000 into an account that pays simple interest at a rate of 3% per year. How much interest will she be paid in th
Fofino [41]
7000*.03*6=??  Step 1. multiply 7000*.03=210 Step 2. multiply 210*6=1260. the answer is $1,260.00 
5 0
3 years ago
Value of the derivative of g(x)=8-10Cosx at 'x=0' is?
VLD [36.1K]

Answer:

g'(0) = 0

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

<u>Pre-Calculus</u>

  • Unit Circle

<u>Calculus</u>

  • Derivatives
  • Derivative Notation
  • The derivative of a constant is equal to 0
  • Derivative Property: \frac{d}{dx} [cf(x)] = c \cdot f'(x)
  • Trig Derivative: \frac{d}{dx} [cos(x)] = -sin(x)

Step-by-step explanation:

<u>Step 1: Define</u>

g(x) = 8 - 10cos(x)

x = 0

<u>Step 2: Differentiate</u>

  1. Differentiate [Trig]:                    g'(x) = 0 - 10[-sin(x)]
  2. Simplify Derivative:                   g'(x) = 10sin(x)

<u>Step 3: Evaluate</u>

  1. Substitute in <em>x</em>:                    g'(0) = 10sin(0)
  2. Evaluate Trig:                      g'(0) = 10(0)
  3. Multiply:                               g'(0) = 0
3 0
3 years ago
3 over the whole value of (x2−5x+6) = a over the whole value of (x−2) + b over the whole value of (x−3)
muminat
I guess that's all you can do
to find a and b you need more information

b=-a -> a (x-3)-a (x-2)=3
a [x-3-(x-2)]=3
a (x-3-x+2)=3
a*(-1)=3
a=3:(-1)
a=-3
b=-a=-(-3)=3

5 0
2 years ago
Find the value of k. -4k + 12
Gekata [30.6K]

Answer:k=3

Step-by-step explanation:

Parece que faltan datos

para poder hallar el valor de la incognita k. Debe haber una ecuación

Suponiendo que tu expresion estaba igualada a cero

-4k+12=0

Despejando k quedaría -4k=-12

luego k=(-12)/(-4)

obteniendo el valor de k=3 positivo

3 0
2 years ago
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