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3 years ago

In the equation, 4x + 17 = -3 do you divide by the coefficient or subtract the 17 first? How do you know? *

1 answer:

6 0

Subtract the 17 then you would get -3-17 which equals -20. the you get 4x=-20. You would then divide both 4x and -20 by 4 which lastly gives you the answer of -5.

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Someone help!!!! Plzz

algol [13]

Answer:

$\text{C. f(x)} = 3(1.5)^{x-1}$

Step-by-step explanation:

The numbers don’t increase by a constant amount, so this is not an arithmetic sequence.

It appears to be a geometric sequence.

The general formula for each term in a geometric sequence is

aₙ = a₁rⁿ⁻¹

===============

Calculate the value of r

You can calculate the r-value by dividing any two consecutive terms in the sequence.

rₙ = aₙ/aₙ₋₁

a₂/a₁ = 4.5/3 = 1.5

a₃/a₂ = 6.75/4.5 = 1.5

a₄/a₃ = 10.125/6.75 = 1.5

a₅/a₄ = 15.1875/10.125 = 1.5

r = 1.5

===============

Determine the formula for the nth term

a₁ = 3; r = 1.5 Substitute the values

aₙ = 3(1.5)ⁿ⁻¹ Write the equation as a function of x

$\text{f(x)} = 3(1.5)^{x-1}$

6 0

4 years ago

Can somebody plz help?e

yawa3891 [41]

Answer:

21.4

Step-by-step explanation:

We can solve for x using trigonometry

Here are the Trigonometric Ratios

Remember SOH CAH TOA

Sine = Opposite over Hypotenuse (SOH)

Cosine = Adjacent over Hypotenuse

Tangent = Opposite over Adjacent

We are given the measure of ∠T ( 72° )

We are also given the adjacent side length (6.6) ( Adjacent = the side length that is not the hypotenuse nor the opposite side length )

And we need to find the hypotenuse ( longest side length )

We this information we can use the trigonometric ratio Cosine to solve for x

That being said we want to set up an equation

(remember cosine = adjacent over hypotenuse )

$cos(72)=\frac{6.6}{x}$

Now we solve for x

We can't get rid of the 6.6 itself so we want to multiply each side by x

now we have $xcos(72)=6.6$

Step 2 divide each side by cos(72)

$\frac{xcos(72)}{cos(72)} =x\\\frac{6.6}{cos(72)} \\x=\frac{6.6}{cos(72)}\\cos(72)=0.3090169944\\\frac{6.6}{0.3090169944} =21.35804865\\$

We're left with x = 21.35804865

Finally we want to round to the nearest tenth of a foot and we get that x = 21.4

7 0

3 years ago

Write a numerical expression for the calculation.

77julia77 [94]

Answer:246.475

Step-by-step explanation:

79+167+19/40

8 0

3 years ago

Can someone pls answer:(

Yuliya22 [10]

Answer:

1. m=2x b=1 2. m=5/8x b= -1 3. m=7/8x b= -3/4 4. m=3/4x b=4

Step-by-step explanation:

7 0

3 years ago

Find three consecutive integers such that the sum of the first and twice the second is 110 minus three times the third

Serggg [28]

First off, consecutive integer and can be written as n, n+1 and n+2

(try putting a number in for n if it does not make sense yet)

The sum of the first and twice the second would be n+2(n+1)

So, our equation becomes

n+2(n+1)=110-3(n+2)

n+2n+2=110-3n-6

3n+2=104

6n=102

n=17

so, our three term are 17,18 and 19

7 0

3 years ago