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3 years ago

Help shaded parts need answers

Mathematics

1 answer:

Andrej [43]3 years ago

4 0

Answer:

? i cant understand this!!!!!!!

Step-by-step explanation:

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Find the area of the shaded region. Show all work in order to receive credit.

antoniya [11.8K]

area of square = 14^2 = 196 square cm

area of circle = 3.14 *7^2 = 153.86 square cm

196 - 153.86 = 42.14 square cm is shaded

3 0

4 years ago

Help me plz i am very confused

Stells [14]

Well, if she wants to buy twice as many burgers as sodas, and her limit is $35, the inequality would have to be, how ever many burgers she can buy, while buying half that amount, but buying sodas instead..? I’m sorry if I’m confusing you more

8 0

3 years ago

In July 2005, the internet was linked by a global network of about 353 million host computers. The number of host computers has

aalyn [17]

Answer:

$N(t) = 37.1(1.38)^t$

Step-by-step explanation:

Exponential function:

An exponential function has the following format:

$N(t) = N(0)(1+r)^t$

In which N(0) is the initial value and r is the rate of change, as a decimal.

37.1 million in July 1998

This means that $N(0) = 37.1$

$N(t) = 37.1(1+r)^t$

In July 2005, the internet was linked by a global network of about 353 million host computers.

This is 2005 - 1998 = 7 years, so $N(7) = 353$ . We use this to find r.

$N(t) = 37.1(1+r)^t$

$353 = 37.1(1+r)^7$

$(1+r)^7 = \frac{353}{37.1}$

$\sqrt[7]{(1+r)^7} = \sqrt[7]{\frac{353}{37.1}}$

$1 + r = (\frac{353}{37.1})^{\frac{1}{7}}$

$1 + r = 1.38$

The formula is:

$N(t) = 37.1(1.38)^t$

5 0

3 years ago

PLEASE HELP ME !!!! I need help

Oksana_A [137]

Answer:

69300 is the total amount without being rounded but after being rounded the answer is 5600

Step-by-step explanation:

You put it in the other comment section for free points

8 0

3 years ago

Can someone please solve this, i need it quickly

Gwar [14]

Answer:

3x + y = 20 and x - 2y = - 4

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

(a)

Given

3x + y = 17 ( subtract 3x from both sides )

y = - 3x + 17 ← in slope- intercept form

with slope m = - 3

Para;;el lines have equal slopes , then

y = - 3x + c ← is the partial equation

To find c substitute (4, 8) into the partial equation

8 = - 12 + c ⇒ c = 8 + 12 = 20

y = - 3x + 20 ← in slope- intercept form

Add 3x to both sides

3x + y = 20 ← in standard form

--------------------------------------------------------

(b)

Given

y + 2x = 13 ( subtract 2x from both sides )

y = - 2x + 13 ← in slope- intercept form

with slope m = - 2

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-2}$ = $\frac{1}{2}$ , then

y = $\frac{1}{2}$ x + c ← is the partial equation

To find c substitute (2, 3) into the partial equation

3 = 1 + c ⇒ c = 3 - 1 = 2

y = $\frac{1}{2}$ x + 2 ← in slope- intercept form

Multiply through by 2 to clear the fraction

2y = x + 4

x - 2y = - 4 ← in standard form

7 0

3 years ago