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2 years ago

Solve 4x - 7 = 2x + 3 Show all work

Mathematics

2 answers:

Grace [21]2 years ago

8 0

Answer:

4x-2x=3+7

2x=10

x=10÷2

x=5

bearhunter [10]2 years ago

5 0

Answer:

x = 5

Step-by-step explanation:

Step 1:

4x - 7 = 2x + 3 Equation

Step 2:

2x - 7 = 3 Subtract 2x on both sides

Step 3:

2x = 10 Add 7 on both sides

Step 4:

x = 10 ÷ 2 Divide

Answer:

x = 5

Hope This Helps :)

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What is the phase of y= -3cos (3x-pi) +5

ratelena [41]

Answer:

$- \frac{\pi}{3}$

Step-by-step explanation:

Given

$y = -3\cos(3x - \pi) + 5$

Required

The phase

We have:

$y = -3\cos(3x - \pi) + 5$

Rewrite as:

$y = -3\cos(3(x - \frac{\pi}{3})) + 5$

A cosine function is represented as:

$y = A\cos(B(x + C)) + D$

Where:

$C \to$ Phase

By comparison:

$C = - \frac{\pi}{3}$

Hence, the phase is: $- \frac{\pi}{3}$

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2 years ago

A card game has 50 cards. After dealing 7 cards to each player, tupi has 15 cards left over. solve the equation

KIM [24]

50 - 15 = 35

35 ÷ 7 = 5

So there were 5 players and your equation would be:-

50 - 15 ÷ x = 5

x = 7

Hope i helped:P

5 0

2 years ago

A rectangle is twice as long as it is wide. If its area is 50 sq. yd., find the length.

sertanlavr [38]

A = L * W
A = 50
L = 2W

50 = W(2W)
50 = 2W^2
50/2 = W^2
25 = W^2
sqrt 25 = W
5 = W

L = 2W
L = 2(5)
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2 years ago

Identify the range of the function y=4x-2 domain={-1,-2,-3,-4}

olga55 [171]

Answer:

<h2>The range: {-6, -10, -14, -18}</h2>

Step-by-step explanation:

Put the values of x from the domain to the equation of a function y = 4x - 2:

for x = -1

y = 4(-1) - 2 = -4 - 2 = -6

for x = -2

y = 4(-2) - 2 = -8 - 2 = -10

for x = -3

y = 4(-3) - 2 = -12 - 2 = -14

for x = -4

y = 4(-4) - 2 = -16 - 2 = -18

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2 years ago

What is math and what does it help in life?

vagabundo [1.1K]

Answer:

It helps in common sense

Step-by-step explanation:

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3 years ago