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2 years ago

Can someone help solve 1 + 2x = 7?

Mathematics

2 answers:

Yanka [14]2 years ago

5 0

Answer:

Step-by-step explanation:

1+2x=7

7-1=6

2x=6

6/2=3

x=3

Georgia [21]2 years ago

5 0

Answer:

x=3

Step-by-step explanation:

1+2x=7 Subtract 1 from both sides to get x by itself.

2x=6 Divide both sides by two to get just x.

2x/2=6/2 Answer.

x=3

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Answer:

Step-by-step explanation:

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2 years ago

What is the frequency of the function y = 3sin2x

antiseptic1488 [7]

Answer:

d. None of the above.

Step-by-step explanation:

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2 years ago

The graph of f passes through (-6,9) and is perpendicular to the line that has an x-intercept of 8 and a y-intercept of -24 the

Valentin [98]

Given:

The graph of f passes through (-6,9).

It is perpendicular to the line that has an x-intercept of 8 and a y-intercept of -24.

To find:

The equation of the function f.

Solution:

The equation of line on which graph of f is perpendicular, is

$\dfrac{x}{a}+\dfrac{y}{b}=1$

where, a and b are x and y intercepts respectively.

$\dfrac{x}{8}+\dfrac{y}{-24}=1$

Multiply both sides by 24.

$3x-y=24$

Slope intercept form is

$y=3x-24$

Slope of this line is 3 and y-intercept is -24.

Product of slopes of two perpendicular lines is -1.

Let the slope of f is m. So,

$m\times 3=-1$

$m=-\dfrac{1}{3}$

Slope of m is -1/3 and it passes through (-6,9). So, the equation of function f is

$y-y_1=m(x-x_1)$

$y-9=-\dfrac{1}{3}(x-(-6))$

$y-9=-\dfrac{1}{3}(x+6)$

$y-9=-\dfrac{1}{3}x-2$

$y=-\dfrac{1}{3}x-2+9$

$y=-\dfrac{1}{3}x+7$

Put y=f(x).

$f(x)=-\dfrac{1}{3}x+7$

Therefore, the required function is $f(x)=-\dfrac{1}{3}x+7$ .

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2 years ago

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4/9 is the awnswrer
yes it is ok have a nice day

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2 years ago

Read 2 more answers

E bisects line segment df. df=2y, and ef=8y-3. find de, ef, and df.

Usimov [2.4K]

1/2DF = EF

1/2(2y) = 8y - 3

Multiply 1/2 * 2y.

y = 8y - 3

Subtract 8y from both sides.

-7y = -3

Divide both sides by -7.

y = 3/7

Plug 3/7 for y into DF and EF.

DF: 2(3/7) = 6/7

EF: 8(3/7) - 3 = 24/7 - 3 = 3/7

EF = DE because they are bisected, so DE = 3/7

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2 years ago

Can someone help solve 1 + 2x = 7?​

Can someone help solve 1 + 2x = 7?