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3 years ago

3/20 + 2/24 - 7/16 +-3/24

Mathematics

1 answer:

Leokris [45]3 years ago

4 0

Answer: -79/240

Step-by-step explanation:

3/20 + 2/24= 7/30

7/30 - 7/16 = -49/240

-49/240 + -3/24 = -79/240

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Two times a number plus four is 22. What is the number

LiRa [457]

Use the expression to solve for the number.

2n + 4 = 22
2n = 22 - 4
2n = 18
n = 18/2
n = 9

The number is 9.

Hope this helps :)

4 0

4 years ago

Read 2 more answers

The explicit formula for a sequence is

MAXImum [283]

Step-by-step explanation:

$\because \: a_n = - 1 + 3(n - 1) \\ \\ \therefore \: a_{55} = - 1 + 3(55 - 1) \\ \\ \therefore \: a_{55} = - 1 + 3 \times 54 \\ \\ \therefore \: a_{55} = - 1 + 162\\ \\ \huge \blue { \boxed{\therefore \: a_{55} = 161}}\\ \\$

Hence, the 55th term of the sequence is 161.

3 0

3 years ago

1) Danielle completely covered a square window using 18.4 ft of contact paper without any

Bumek [7]

The answer should be b. because 4(4) = 16 and that’s closer to 18.4 than the others.

7 0

3 years ago

Consider the quadratic equation x2 − 6x = 16.

e-lub [12.9K]

Answer:

C) (x − 3)2 = 25
C) Factor out 4 from 4x2 + 40x.

Step-by-step explanation:

1. Adding the square of half the x-coefficient to both sides of the equation will "complete the square." That square is 9, so the result on the right is 16+9 = 25. Only selection C matches.

___

2. To complete the square, you want to be able to put the quadratic into the form a(x -h)^2 = -k. For the purpose, it is most convenient to first factor "a" from the given quadratic. Then you can determine "-h" to be half the x-coefficient inside the parentheses.

Here, that looks like ...

4(x² +10x) = 80 . . . . . . . . . . step 1: factor out 4

4(x² +10x +25) = 180 . . . . . add 25 inside parentheses and the same number (4·25) on the right side of the equation

4(x +5)² = 180 . . . . . . . . . . . written as a square

8 0

3 years ago

PLZ SOMEONE HELP ME AND EXPLAIN <br> THX

ELEN [110]

The graph of g is one-fifth as steep as the graph of f.

The function g basically takes the inputs for f and multiplies them by one-fifth, which means the outputs are one-fifth times those of f. Multiplying by one-fifth makes something smaller (it's the same as dividing by five). It helps to visualize this relationship, so I've attache the graphs below.

7 0

3 years ago