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3 years ago

-7(2x+4)+6=7x+20 Solve for x

Mathematics

1 answer:

igomit [66]3 years ago

4 0

Answer:

x=1.8

Step-by-step explanation:

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If f(x) = 2x+4, which of the following is the inverse of f(x)?

creativ13 [48]

Answer:

${f}^{ - 1} (x)= \frac{x}{2} - 2$

Step-by-step explanation:

The given function is

$f(x) = 2x + 4$ Let

$y = 2x + 4$

Interchange x and y.

$x = 2y + 4$

Solve for y,

$x - 4 = 2y$

Divide both sides by 2

$y = \frac{x}{2} - 2$

Therefore;

${f}^{ - 1} (x)= \frac{x}{2} - 2$

3 0

3 years ago

Help me will give brainliest!!

faust18 [17]

Answer:

3/4 or 9/12

Step-by-step explanation:

Since there are 12 movies in total. The possible chance of picking a drama movie is a 1 out of 4 chance (3/12 = 1/4), the possible of picking a movie without a drama is a 3 out of 4 chance (9/12 = 3/4)

12/12 - 3/12 = 9/12 = 3/4

3 0

3 years ago

PLS Help me Error Analysis

Maksim231197 [3]

we have

Pieces of mail delivered in December by the US postal service

$7.14*10^{10}$

Pieces of mail delivered in January by the US postal service

$3.21*10^{10}$

To find the total mail delivered for these two months, sum the two quantities

$7.14*10^{10}+3.21*10^{10}=(7.14+3.21)*10^{10}\\=10.35*10^{10} \\=(1.035*10)*10^{10} \\=1.035*(10* 10^{10})\\=1.035*10^{(10+1)} \\= 1.035*10^{11}$

therefore

the correct solution is $1.035*10^{11}$

the error is in this part

$10.35*10^{10}$

To move decimal over one place 10 to the power of 10 should be 10 to the power of 11

$1.035*10^{10}$

3 0

3 years ago

Convert the following to inches 3' 8"

laiz [17]

Answer: 44 inches

Step-by-step explanation:

believe me plz mark me brainliest plz

8 0

3 years ago

Read 2 more answers

Pls answer correctly and I’ll mark you as brainly

ch4aika [34]

2g/18 because if g=3, then 1-2/3=1/3, and 6/18=1/3

7 0

3 years ago