3 years ago

I am a parent and needhelp with this 11 + 3(9 − 6) − 4

Mathematics

1 answer:

STALIN [3.7K]3 years ago

5 0

Answer:

i'm sure its 16

Step-by-step explanation:

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A basketball stadium holds 18500 seats. 65% of the seats are in the lower bowl and 35% of the seats are in the upper bowl. A low

Doss [256]

The restrictions are:

1) x ≥ 0

2) number of lower bowl seats = 65% * 18500 = 12,025

=> x ≤ 12,025

3) y ≥ 0

4) number of upper bowl seats = 35% * 18500 = 6,475

=> y ≤ 6,475

It is not necessary to state that x + y ≤ 18,500 because it is included in the other restrictions.

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3 years ago

Fill in the table find the rule

lakkis [162]

Answer:

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2 years ago

A person standing d=145 centimeters from a mirror notices that the angle of depression from his eyes to the bottom of the mirror

Serggg [28]

The length of the mirror is 64.52 cm

<u>Explanation:</u>

Given:

Distance of the person from the mirror = 145cm

Angle of depression = 14°

Angle of elevation = 11°

Vertical dimension of the mirror = ?

For angle of elevation:

$tan(11) = \frac{AB}{BO}\\ \\0.195 = \frac{AB}{145} \\\\AB = 28.275 cm$

For the angle of depression:

$tan(14) = \frac{BC}{BO} \\\\0.25 = \frac{BC}{145} \\\\BC = 36.25 cm$

Total length of the mirror, AC = AB + BC

= 28.275 + 36.25cm

= 64.52 cm

Therefore, the length of the mirror is 64.52 cm

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4 years ago

Factor 2m2 - m - 21

maks197457 [2]

Answer:

Step-by-step explanation:

hello:

2m² - m - 21

∆ =b²-4ac a=2 and b= -1 and c= -21

∆ =(-1)²-4(2)(-21)=169 = 13²

m1 = (-b+√∆)/2a = (1+13)4 = 14/4 = 7/2

m2 = (-b-√∆)/2a = (1-13)4 = -12/4 = -3

the factorization is : a(m-m1)(m-m2)

2(m-7/2)(m+3) = (2m-7)(m+3)

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4 years ago

Thanh and her crew are building a stage in the shape of a trapezoid for an upcoming festival. The lengths of the parallel sides

Xelga [282]

Answer: The answer would be 228. (:

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4 years ago