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nikdorinn [45]
3 years ago
10

Which of the binomials below is a factor of this trinominal? x^2-13+30

Mathematics
1 answer:
Leona [35]3 years ago
8 0

Answer:

(x-3)(x-10)

Step-by-step explanation:

To factor the equation, break it into two binomials which multiply to make the equation. To write these binomials (x+a)(x+b), find factors which multiply to 30 and add to -13 for a and b.

30: 1, 2, 3, 5, 6, 10, 15, 30

-3+-10 = -13

x^2-13x+30 = (x-3)(x-10)

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The number 5.003 × 10 -5 written in standard form is _____.
Tanya [424]
When the 10 is to a negative power you move the decimal to the left. in this case its 5 spots. i believe your answer is .00005003
5 0
3 years ago
robert has a piece of rope 12 1/2 feet long. he cut rope into pieces that are 1 1/4 feet long. How many of the shorter pieces wi
Gemiola [76]

Answer:

divide 25.5 by 6

or change them to fractions

51/2  divided by 6   = 51/2 x 1/6 = 51/12 = 4  3/12   = 4 1/2 feet each

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A pool measuring 16 meters by 22 meters is surrounded by a path of uniform​ width, as shown in the figure. If the area of the po
lesantik [10]

Let X be the width of the path.

The width of the path would be the width of the pool plus 2x, so 2x +16

The length of the path would be the length of the pool plus 2x, so 2x+22

The total area is 832 square feet.

Area is found by multiplying the length by the width.

So you have:

(2x+16) (2x+22) = 832

Use the Foil Method:

(2x+16) (2x+22) = 4x^2 +76x+352

Now you have:

4x^2 +76x+352 = 832

Subtract 832 from both sides:

4x^2 +76x+352-832 = 0

Simplify:

4x^2 +76x -480

Factor the left side:

4(x-5)(x+24) = 0

Divide both sides by 4:

(x-5)(x+24) = 0

Set both parenthesis to equal 0 and solve for x:


x=5 and x = -24

The width of the path cannot be a negative number, so the width is 5 meters.


8 0
3 years ago
What notes do I use on the first side then the 2nd side?
Vinil7 [7]

Answer:

I would use either a dotted half note for the first measure (equivalent to 3 beats), or use a half note and a quarter note. In the second measure I would use a half note.

7 0
3 years ago
Hey there! I was wondering if I could receive help on solving these first 4 questions! :)
bulgar [2K]

Given

Find

Surface Area and Volume of the figure.

Explanation

As we know , surface area of cuboid is ( 2lb + 2bh + 2hl ) and

Volume of cuboid

l\times b\times h

here l = 14cm, b = 11cm and h = 14cm

so, Surface area =

\begin{gathered} 2\times14\times11+2\times11\times14+2\times14\times14 \\ 308+308+392 \\ 1,008cm^2 \end{gathered}

Volume of cuboid =

\begin{gathered} 14\times11\times14 \\ 2,156cm^3 \end{gathered}

Final Answer

Surface Area = 1,008

Volume = 2,156

6 0
1 year ago
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