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pshichka [43]
3 years ago
13

Someone help me out pleaseee

Mathematics
1 answer:
Tatiana [17]3 years ago
6 0

Answer:

(8)^2-4(16)(1)=0

Value of determinant: 0

one real solution (or two equal solutions)

Step-by-step explanation:

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andriy [413]
The asnwer is 36 i think

the first mixed fraction would turn into 12 and the second would be 3, and 12 x 3 is 36
6 0
3 years ago
Which is the adjectival phrase in the sentence? Those old patio chairs on the deck are beginning to rust.
LUCKY_DIMON [66]
Those old (letter a).
7 0
3 years ago
Read 2 more answers
The surface area Q of a certain shape is three times the product of u and the square of its width w.
BARSIC [14]

Answer:

Q = 3uw

Step-by-step explanation:

3 0
2 years ago
PLS HELP ASAP WILL GIVE BRAINLIEST AND 100 POINTS
konstantin123 [22]
<h2><u>Part A</u>: He started with 4 miles. </h2>

<u>Explanation Part A</u>:    51.664 = (x((1.2⁷)-1)) / 0.2

<h2>
<u>Part B</u>: The equation is 51.664 = (x(1.2⁷)-1)/0.2</h2>

<u>Explanation</u>: n = 7 and on day 7 he traveled 51.664 so Sn = 51.664.

We get the second part of the equation because each day is increased by 20% so we have r = (1.2x) / x = 1.2

So our top half will be x multiplied by ((1.2)⁷-1) because it's the 7th day and we are increasing by 1.2x - 1.

Our bottom half is 1.2 - 1 which equals 0.2

<h2><u>Part C</u> : 103.83 miles</h2>

<u>Explanation: </u> We now have x which is 4 so we plug x into the equation above and remove the 51.664. We also change the 1.2⁷ to 1.2¹⁰ because it's the 10th day not the 7th.

Our equation now looks like (4(1.2¹⁰)-1) / 0.2 which is equal to 103.83 miles.

5 0
2 years ago
Find The art length of a sector with an area of 8 square units.
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\bf \textit{area of a sector of a circle}\\\\&#10;A=\cfrac{\theta \pi r^2}{360}\quad &#10;\begin{cases}&#10;r=radius\\&#10;\theta =angle~in\\&#10;\qquad degrees\\&#10;------\\&#10;A=8\\&#10;r=4&#10;\end{cases}\implies 8=\cfrac{\theta \pi 4^2}{360}\implies \cfrac{8\cdot 360}{4^2\pi }=\theta &#10;\\\\\\&#10;\cfrac{2880}{16\pi }=\theta \implies \boxed{\cfrac{180}{\pi }=\theta }\\\\&#10;-------------------------------\\\\

\bf \textit{arc's length}\\\\&#10;s=\cfrac{\theta \pi r}{180}\quad &#10;\begin{cases}&#10;r=radius\\&#10;\theta =angle~in\\&#10;\qquad degrees\\&#10;------\\&#10;\theta =\frac{180}{\pi }\\&#10;r=4&#10;\end{cases}\implies s=\cfrac{\frac{180}{\underline{\pi} }\underline{\pi} \cdot 4}{180}\implies s=\cfrac{\underline{180}\cdot 4}{\underline{180}}&#10;\\\\\\&#10;\boxed{s=4}

if you do a quick calculation on what that angle is, you'll notice that it is exactly 1 radian, and an angle of 1 radian, has an arc that is the same length as its radius.

that's pretty much what one-radian stands for, an angle, whose arc is the same length as its radius.
6 0
3 years ago
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