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lozanna [386]
4 years ago
5

Help please. It'd mean a whole lot.

Mathematics
1 answer:
svp [43]4 years ago
3 0

So, the total area of the rectangle is just:

(2x+11)(2x+6)=4x^2+12x+22x+66=4x^2+32x+66

The area of the white rectangle is just 66 meters, so the area of the steel frame is 4x^2+32x, and we want it to be 28 meters so: 4x^2+32x-28=0 \impliesx= \frac{-32+\sqrt{1472}}{8} \approx .80 cm

We don't have to consider the other root because it's obviously a negative.

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What is the nth term of the geometric sequence -2,10,-50
poizon [28]

Answer:

T_n=-1(-5)^n^-^1

Step-by-step explanation:

We are given;

A geometric sequence;

-2,10,-50

Required to determine the nth term

The nth term in a geometric sequence is given by the formula;

T_n=a_1r^n^-^1

where a_1 is the first term and r is the common ratio;

In this case;

a_1=-2

r = 10 ÷ -2

  = -5

Therefore;

To get the nth term in the given geometric sequence we use;

T_n=-1(-5)^n^-^1

Thus, the nth term is T_n=-1(-5)^n^-^1

3 0
3 years ago
Suppose that your boss must choose four employees in your office to attend a conference in Jamaica. Because all 15 of you want t
oksano4ka [1.4K]

Answer:

1 / 1365

Step-by-step explanation:

Given that :

Number of employees to choose from = 15

Number of employees to be chosen = 4

Probability of choosing You, Kyle, Carol and Adam

Recall ;

P(A) = number of required outcome / Total possible outcomes

Number of required outcome = 4C4

Total possible outcomes = 15C4

nCr = n! ÷ (n-r)!r!

Using calculator to save computation time :

15C4 = 1365

4C4 = 1

P(choosing you, Kyle, Carol and Adam) :

1 / 1365

3 0
3 years ago
For 31 hours of work, you are paid $240.25. How much would you receive for 40 hours?
CaHeK987 [17]
310

240.25/31= $7.75 an hour
7.75 x 40=$310
7 0
3 years ago
Read 2 more answers
2/3 to 8 in simplest form
Nat2105 [25]
2/3 to 8 is the same ratio if we multiply both sides by 3/2 so:
2/3×3/2=1
8×3/2=12
So 1 to 12


7 0
3 years ago
angles a and angles t Are complementary. the measure of angles t is three times the measure of angles a what is measure angles a
raketka [301]
Short Answer: 22.5
Givens
A + T = 90o           Definition of complementary.
T = 3*A

Sub and Solve
A + 3A = 90
4A = 90
A = 90/4
A = 22.5°

Answer A = 22.5°
6 0
3 years ago
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