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3 years ago

Can someone answer these questions pls pls pls pls

Mathematics

1 answer:

Rainbow [258]3 years ago

3 0

Answer:

1. A

2. D

Step-by-step explanation

You can see in the first one it continuously goes up and in the second one it continuously goes down.

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Mr.Brown deposited $2500 to his new savings account. Each month, he deposits $300 to his account. Which inequality can be used t

Firlakuza [10]

Answer:

X>5

Step-by-step explanation:

Since the initial deposit is given as $2500 then to get more than $4000, Mr. Brown needs additional 4000-2500=$1500

Since each month he deposits $300 then after x months he will have more than $1500 additional.

4000<300x+2500

Collecting like terms

4000-2500<300x

1500<300x

Simplifying

5<x

x>5

8 0

4 years ago

What makes a decimal repeating

pentagon [3]

Also known as a recurring decimal, a repeating decimal is a number that has repeating digits infinitely, can also be identified with a line over the last number of the decimal.

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4 years ago

What's the surface area of the square pyramid?? Please someone answer fast

Eddi Din [679]

Answer:

Step-by-step explanation:

The base/square:

3*3 = 9

The sides:

(3*4)/2 = 6

4 sides:

6*4 = 24

Total:

24+9=33

8 0

3 years ago

Please teach me on how to answer this question. (addmath question)

arsen [322]

We know that $\overline{x}=8$ so:

$\overline{x}=8\\\\\\\dfrac{\sum\limits_{k=1}^7\,x_k}{7}=8\qquad|\cdot7\\\\\\ \boxed{\sum\limits_{k=1}^7\,x_k=56}$

We want to calculate:

$\sum\limits_{k=1}^7\,\big(2x_k-3\big)^2=\sum\limits_{k=1}^7\,\big(4x_k^2-12x_k+9\big)=\\\\\\=\sum\limits_{k=1}^7\,4x_k^2-\sum\limits_{k=1}^7\,\big12x_k+\sum\limits_{k=1}^7\,9=4\sum\limits_{k=1}^7\,x_k^2-12\sum\limits_{k=1}^7\,x_k+\sum\limits_{k=1}^7\,9=\\\\\\=4\cdot672-12\cdot56+7\cdot9=2688-672+63=\boxed{2079}$

5 0

3 years ago

Evaluate 6+x when x=3 ??

Sav [38]

Look at the attached picture⤴

Hope this will help u...

6 0

4 years ago