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tigry1 [53]
3 years ago
6

52/4 + 8z^2 I need help solving this equation?

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
5 0
13/1 +8z2
Answer = 13+8z2
denis-greek [22]3 years ago
4 0

Answer:

8

2

+

1

3

Step-by-step explanation:

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A library building is in the shape of a rectangle. Its floor has a length of (3x + 5) meters and a width of (5x − 1) meters. The
malfutka [58]
We can use the Front Outside Inside Last (FOIL) method to expand the double bracket

(3x+5)(5x-1)

Front ⇒(3x)(5x)=15 x^{2}
Outside ⇒(3x)(-1)=-3x
Inside ⇒(5)(5x)=25x
Last ⇒(5)(-1)=-5

Put the four terms together we have
15 x^{2} -3x+25x-5, then collect like terms
15 x^{2} +22x-5
5 0
3 years ago
Read 2 more answers
Some students were asked what kinds of animals they have at home.
Nataly_w [17]

(a) Animals by popularity; Dogs, Cats, Others, Horses.

(b) If 250 students were interviewed, 20 students have other pets.

(c) No, it was incorrect.

Step-by-step explanation:

Step 1; We arrange the different pets in chronological order, from the highest percent to the lowest percent;

1. Dogs - 67%,

2. Cats - 20%

3. Others - 8%,

4. Horses - 1%.

None is not included in this list.

Step 2; If 250 students were interviewed, 8% of those have other pets. So we need to calculate how much 8% of 250 is.

8% of 250 = \frac{8}{100} × 250 = 0.08 × 250 = 20.

So 20 students had other pets.

Step 3; 20% of the interviewed students had cats. If 75 students had cats, we need to equate 20% to the 75 and find out how many students were actually interviewed.

20% × x = 75, 0.2 × x = 75,

x = \frac{75}{0.2} = 375.

So if 375 students were interviewed, 75 students would have cats. So the estimate of 250 students being interviewed is incorrect.

8 0
3 years ago
Find m angle f to the nearest degree
dimaraw [331]

Answer:

∠F ≈ 53°

General Formulas and Concepts:

<u>Trigonometry</u>

  • sin∅ = opposite over hypotenuse
  • sin inverse evaluates "backward" to find the measure angle

Step-by-step explanation:

<u>Step 1: Define</u>

Looking at ∠F

opposite leg of ∠F = ED = 8

hypotenuse = FE = 10

<u>Step 2: Find m∠F</u>

  1. Substitute:                    sin∠F = 8/10
  2. Simplify:                        sin∠F = 4/5
  3. Take sin inverse:          ∠F = sin⁻¹(4/5)
  4. Evaluate:                       ∠F = 53.1301°
  5. Round:                           ∠F ≈ 53°
8 0
3 years ago
Place the indicated product in the proper location on the grid.<br> (4ya - 6xb)(4ya + 6xb)
k0ka [10]

Product of (4ya - 6xb)(4ya + 6xb) is 16y^2a^2-36x^2b^2

Step-by-step explanation:

We need to find the product of (4ya - 6xb)(4ya + 6xb)

Finding product:

Multiplying both terms:

(4ya - 6xb)(4ya + 6xb)\\=4ya(4ya+6xb)-6xb(4ya+6xb)\\=16y^2a^2+24yaxb-24xbya-36x^2b^2\\=16y^2a^2-36x^2b^2

So, product of (4ya - 6xb)(4ya + 6xb) is 16y^2a^2-36x^2b^2

Keywords: Product of polynomials

Learn more about Product of polynomials at:

  • brainly.com/question/4282963
  • brainly.com/question/2403985
  • brainly.com/question/5030671

#learnwithBrainly

6 0
3 years ago
Read 2 more answers
I need help. Please im not very good at math
timofeeve [1]

Answer:

sure i can help im really good at algebra :D

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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