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2 years ago

Solve for x: 3^2-x=5^2x+1

Mathematics

1 answer:

Vika [28.1K]2 years ago

4 0

Answer:

√ 30 /5 , − √ 30 /5

Step-by-step explanation:

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Gary has a 12gallon gas tank when he filled his tank up he pumped 8 gallons of gas what fraction of the tank had been empty

Assoli18 [71]

2/3 I believe is the answer

5 0

2 years ago

I need help solving -13<4x+7

arsen [322]

Answer:

the answer is -5< x

Step-by-step explanation:

you you start by subtracting 7 by both sides leaving you with -20<4x. then then divide both sides by 4 leaving you with -5< x

5 0

3 years ago

For a recent year, the rate of first-class postage is as follows:

Law Incorporation [45]

Answer:

$0.95

Step-by-step explanation:

Given that weight of the function = x

Given that cost of the postage for mail having weight less than or equal to 1 oz = $0.44

then to find the equation can be written as

C(x)=0.44 where 0<x<=1

Similarly we can write equation for other parts

C(x)=0.61 where 1<x<=2

C(x)=0.78 where 2<x<=3

C(x)=0.95 where 3<x<=3.5

Now we can write them together as piecewise function as shown in below:

$C(x)=\left\{\begin{matrix}0.44 & 0$

to graph that we just draw horizontal lines for each as none equation contains x on the right side .

3.48 oz is less that 3.5 so we will use $0.95.

7 0

2 years ago

Read 2 more answers

Given sin theta= 6/11 and sec theta < 0, find cos theta and tan theta.

bekas [8.4K]

Answer: option a.

Step-by-step explanation:

By definition, we know that:

$cos^2(\theta)=1-sen^2(\theta)\\\\tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

Substitute $sin(\theta)=\frac{6}{11}$ into the first equation, solve for the cosine and simplify. Then, you obtain:

$cos(\theta)=\±\sqrt{1-(\frac{6}{11})^2}\\\\cos(\theta)=\±\sqrt{\frac{85}{121}}\\\\ cos(\theta)=\±\frac{\sqrt{85}}{11}$

As $sec\theta$ then $cos\theta$ :

$cos(\theta)=-\frac{\sqrt{85}}{11}$

Now we can find $tan\theta$ :

$tan\theta=\frac{\frac{6}{11}}{-\frac{\sqrt{85}}{11}}\\\\tan\theta=-\frac{6\sqrt{85}}{85}$

4 0

3 years ago

Read 2 more answers

A cylinder has a volume of 83 in3 and is 10 in. tall. What is the radius of the cylinder in inches? Round your answer to the nea

Nataly [62]

To find the radius of the cylinder you will use the volume formula and solve for the radius.

V = pi x r^2 x h
83 = 3.14 x r^2 x 10
83 = 31.4 x r^2; divide both sides by 31.4
r^2 = 2.6; find the square root of 2.6
r = 1.6 in.

The radius is approximately 1.6 in.

3 0

2 years ago