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lesya [120]
2 years ago
5

Find the number. PLEASE HELP!!!

Mathematics
2 answers:
Arte-miy333 [17]2 years ago
5 0

Answer:

x = 18or x = - 20

Step-by-step explanation:

Given

x² + 2x = 360 ( subtract 360 from both sides )

x² + 2x - 360 = 0 ← quadratic in standard form

Consider the factors of the constant term (- 360) which sum to give the coefficient of the x- term (+ 2)

The factors are + 20 and - 18, since

20 × - 18 = - 360 and 20 - 18 = 2 , thus

(x + 20)(x - 18) = 0

Equate each factor to zero and solve for x

x + 20 = 0 ⇒ x = - 20

x - 18 = 0 ⇒ x = 18

Thus the number could be 18 or - 20

Trava [24]2 years ago
3 0

Answer:

X=18

Step-by-step explanation:

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pentagon [3]

Answer:

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Step-by-step explanation:

if each bag weighs 5 pounds, and he filled 2 on Saturday he used 10 pounds already. that would leave 20 pounds left, 20 ÷ 2 = 10

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Lyra and Donna are testing the two-way radios they built for their high school science project. Lyra goes to the top of a buildi
nata0808 [166]
This question is far easier to understand if we draw it out. I've included an image attachment to help show the relationships of the measurements. As we can see from the image, their positioning helps form a triangle that we can use the Pythagorean Theorem to find the connection range.
The Theorem is a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse.

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5 0
3 years ago
Construct parallelogram PQRS<br>with |PQ|=10cm, |ps|=8cm and<br>&lt;QPS = 120​
IgorC [24]

Find sketch of parallelogram attached

Answer and explanation:

A parallelogram is a quadrilateral which is wider than it is long. A parallelogram has two sides parallel to the other. From the above, we are told the parallelogram PQRS has an angle QPS 120, with sides 10cm and 8cm, we use this to sketch the parallelogram

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4 0
3 years ago
What is the equation of a circle with center (-3, -5) and radius 4?
o-na [289]

Answer:

(x+3)^{2} +(y+5)^{2} =16

Step-by-step explanation:

the general equation of a circle is

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8 0
2 years ago
Please explain 22 and 23
ICE Princess25 [194]

Hey there!

  1. \bold{Mean\rightarrow your \ average}
  2. \bold{The\ word \ 'average' \ means \rightarrow} \bold{is \ where \ you \ add \ up \ your \ particular \ numbers \ \& you}\bold{divde \ your \ result \ by \ the \  number!}

\bold{22.\downarrow}

  • If we're rounding the answer then: \boxed{\bold{answer:90}} \checkmark

\bold{23.\downarrow}

  • Another name for the word is "range" so, \boxed{\bold{answer:11}} \checkmark

Good luck on your assignment and enjoy your day!

~\frak{LoveYourselfFirst:)}

5 0
3 years ago
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