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frez [133]
2 years ago
7

Each step in a procedure to solve this equation is shown. Equation: 5x – 7 = 3(x + 1) Step 1: 51 – 7 = 3x + 3 Step 2: 2x – 7 = 3

Step 3: 2x = -4 Step 4: 2 = -2 In which step is the first error made? 0 from the original equation to step 1 from step 1 to step 2 O from step 2 to step 3 from step 3 to step 4​
Mathematics
1 answer:
NeTakaya2 years ago
5 0

Answer:

I think the first mistake was made in step 1

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Lesson: 1.08Given this function: f(x) = 4 cos(TTX) + 1Find the following and be sure to show work for period, maximum, and minim
Ber [7]

The given function is

f(x)=4\cos \text{(}\pi x)+1

The general form of the cosine function is

y=a\cos (bx+c)+d

a is the amplitude

2pi/b is the period

c is the phase shift

d is the vertical shift

By comparing the two functions

a = 4

b = pi

c = 0

d = 1

Then its period is

\begin{gathered} \text{Period}=\frac{2\pi}{\pi} \\ \text{Period}=2 \end{gathered}

The equation of the midline is

y_{ml}=\frac{y_{\max }+y_{\min }}{2}

Since the maximum is at the greatest value of cos, which is 1, then

\begin{gathered} y_{\max }=4(1)+1 \\ y_{\max }=5 \end{gathered}

Since the minimum is at the smallest value of cos, which is -1, then

\begin{gathered} y_{\min }=4(-1)+1 \\ y_{\min }=-4+1 \\ y_{\min }=-3 \end{gathered}

Then substitute them in the equation of the midline

\begin{gathered} y_{ml}=\frac{5+(-3)}{2} \\ y_{ml}=\frac{2}{2} \\ y_{ml}=1 \end{gathered}

The answers are:

Period = 2

Equation of the midline is y = 1

Maximum = 5

Minimum = -3

3 0
9 months ago
Please help!!!!!! ill give you brainliest!
olga2289 [7]

Answer:

The team made x<u><</u>53 points total.

Step-by-step explanation:

1/4+1/10 is 7/20 or 0.35 in decimal form. If they both together scored 21 points then you can add another 7/20 (21 points) and have 14/20 (42 points). You have 6/20 more left. If you can solve what 1/20 could be then you would find the answer. Does this helps?

3 0
2 years ago
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Which is the missing step in the proof below? Given: ABCD IS A PARALLELOGRAM
OlgaM077 [116]

Answer:

no picture

Step-by-step explanation:

3 0
3 years ago
Calcular los perimetros de las siguientes figuras porfa ayúdenme ya​
Basile [38]

Answer:

solo suma todos los valores x+4(3)+(x+x)

en el segundo x+5(2)+x+3(2)

en el tercero x-3+(2x+5)+(2x+5)

y en el cuarto x(3)+(x+4)

7 0
3 years ago
Gabriella is three years younger than her sister, Amy. If
NemiM [27]

Answer:

5+3 is Amy, so Amy is 8

Step-by-step explanation:

So, lets say amy is a

and gabriella is g

WE know that g=5, because gabriella is 5 years old

And, Gabriells is younger than Amy, so we need to add to get Amy's age

So, 5 ( Gabriella's age ) + 3=Amy

So, 5+3= Amy

So Amy is 8

6 0
2 years ago
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