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3 years ago

3.

Mathematics

2 answers:

neonofarm [45]3 years ago

6 0

Answer- D. -5
Explanation- each number of the sequence in order is multiplied by -5

jok3333 [9.3K]3 years ago

3 0

Answer:

D. –5

Step-by-step explanation:

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Howard read 1/6 of a book each day until 7/8 of the book was finished. How many days has Howard been reading ?

kodGreya [7K]

He has been reading for 20days

8 0

4 years ago

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Write an equation that can be used to find the value of x. The perimeter of rectangle: 32 Length of the other side: 4

Sati [7]

Answer:

x=12

Step-by-step explanation:

32=2(4+x)

distribute 2.

32=8+2x

subtract 8 from both sides.

32=8+2x

-8 -8

24=2x

divide by 2 on both sides

24/2=2x/2

12=x

6 0

3 years ago

Will give brainliest: Use geometry to evaluate the integral from negative 2 to 2 of the quantity 2 minus the absolute value of x

ANEK [815]

Answer:

B. 4

Step-by-step explanation:

The figure is a triangle 4 units wide and 2 units high. Its area is ...

A = (1/2)bh = (1/2)(4)(2)

A = 4 . . . . square units

7 0

3 years ago

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3. A person standing 3 feet away from the base of a lamp post casts a shadow 4 feet long. If the person is 6 feet tall and walks

german

Answer:

533.33 ft/min

Step-by-step explanation:

We are given that

x=3 feet

y=4 feet

Height of person,h=6 feet

$\frac{dx}{dt}=400 ft/min$

Triangle ABC and A'B'C are similar because all right triangles are similar

By using similarity property

$\frac{h'}{6}=\frac{7}{4}$

$h'=10.5 feet$

$x+y=3+4=7 feet$

$\frac{h'}{6}=\frac{x+y}{y}$

$\frac{10.5}{6}=\frac{x+y}{y}$

$10.5y=6x+6y$

$10.5y-6y=6x$

$4.5y=6x$

Differentiate w.r.t t

$4.5\frac{dy}{dt}=6\frac{dx}{dt}$

$\frac{dy}{dt}=\frac{6\times 400}{4.5}ft/min$

$\frac{dy}{dt}=533.33ft/min$

Hence, If the person is 6 feet tall and walks away from the lamp post at a speed of 400 feet per minute then his shadow moving at the rate 533.33 ft/min

7 0

3 years ago

How can you split 20 into 3 groups

Leviafan [203]

The answer is 6 per team with 2 left over, as (6 x 3) + 2 = 20

I thought of the largest amount that could be multiplied by 3, but the product would be less or equal to 20, that's how I got 6.

Then to find the left over remaining balls that are given out I subtracted 20-18 = 2.

7 0

3 years ago