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4 years ago

Porfa lo necesito para hoy

Mathematics

1 answer:

dybincka [34]4 years ago

7 0

Answer:hi lol

Step-by-step explanation:

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Helppppppp mathhhhhhhh

mestny [16]

This is calculator work. Type in 0.8 inverse tangent and find 38.6598, which, rounded, matches answer D.

6 0

3 years ago

Two lines intersect. Find the value of b and c.<br><br>Solution:

loris [4]

Answer:

B=42° and C=138°

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

John wrote the numbers 678,901 and 67,890. How many times greater is the value of 7 in 678,901?

worty [1.4K]

Answer:

The value of 7 in 678,901 is 10 times greater than the value of 7 in 67,890

Step-by-step explanation:

step 1

we have

678,901

Write in expanded form

678,901=600,000+70,000+8,000+900+1

The value of 7 is 70,000

step 2

we have

67,890

Write in expanded form

67,890=60,000+7,000+800+90

The value of 7 is 7,000

step 3

Divide 70,000 by 7,000

$\frac{70,000}{7,000}=10$

therefore

The value of 7 in 678,901 is 10 times greater than the value of 7 in 67,890

4 0

3 years ago

Read 2 more answers

A triangle has an area of 32 square millimeters and a base of 8 millimeters.<br> What is its height?

beks73 [17]

The answer is the height is 8

5 0

3 years ago

The function f(x,y)=2x + 2y has an absolute maximum value and absolute minimum value subject to the constraint 9x^2 - 9xy + 9y^

deff fn [24]

Answer:

the minimum is located in x = -5/3 , y= -5/3

Step-by-step explanation:

for the function

f(x,y)=2x + 2y

we define the function g(x)=9x² - 9xy + 9y² - 25 ( for g(x)=0 we get the constrain)

then using Lagrange multipliers f(x) is maximum when

fx-λgx(x)=0 → 2 - λ (9*2x - 9*y)=0 →

fy-λgy(x)=0 → 2 - λ (9*2y - 9*x)=0

g(x) =0 → 9x² - 9xy + 9y² - 25 = 0

subtracting the second equation to the first we get:

2 - λ (9*2y - 9*x) - (2 - λ (9*2x - 9*y))=0

- 18*y + 9*x + 18*x - 9*y = 0

27*y = 27 x → x=y

thus

9x² - 9xy + 9y² - 25 = 0

9x² - 9x² + 9x² - 25 = 0

9x² = 25

x = ±5/3

thus

y = ±5/3

for x=5/3 and y=5/3 → f(x)= 20/3 (maximum) , while for x = -5/3 , y= -5/3 → f(x)= -20/3 (minimum)

finally evaluating the function in the boundary , we know because of the symmetry of f and g with respect to x and y that the maximum and minimum are located in x=y

thus the minimum is located in x = -5/3 , y= -5/3

4 0

3 years ago