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2 years ago

At a local print shop, 18 copies can be made for $6. At this rate, how much would it

Mathematics

1 answer:

Ber [7]2 years ago

5 0

Answer: to make 78 copies it cost 26 dollars.

Step-by-step explanation:

18 copies - 6 dollars

78 copies - x dollars

Hence,

$\displaystyle\\x=\frac{78*6}{18} \\\\x=\frac{26*3*6}{3*6} \\\\x=26 \ dollars$

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A thumbtack that is tossed can land point up or point down. The probability of a tack landing point up is 0.2. A simulation was

sweet-ann [11.9K]

Answer:

Option C: 0.28

Step-by-step explanation:

This is a binomial probability distribution problem.

Now, we want to find the probability that at least 2 thumbtacks land pointing up when 5 thumbtacks are tossed. This is written as;

P(X ≥ 2) = P(2) + P(3) + P(4) + P(5)

From the histogram;

P(5) = 0.02

P(4) = 0.02

P(3) = 0.05

P(2) = 0.19

Thus;

P(X ≥ 2) = 0.19 + 0.05 + 0.02 + 0.02

P(X ≥ 2) = 0.28

8 0

3 years ago

Read 2 more answers

What is the length of the missing leg? If necessary, round to the nearest tenth.

KengaRu [80]

<u>Answer:</u>

a = 3.5

<u>Step-by-step explanation:</u>

<u>Let's find 'a' using Pythagoras theorem.</u>

=> 4² = 2² + a²
=> 16 = 4 + a²
=> 12 = a²
=> a = √12
=> a = √2 x 2 x 3
=> a = 2√3
=> a = 2 x √3
=> a = 2 x 1.732
=> a = 3.464 = 3.5 (Estimated)

Hoped this helped.

$BrainiacUser1357$

4 0

3 years ago

. Given the following diagram. (a) Name the minor arc __________ Name the major arc ___________ (b) If the minor arc is 112°, wh

garri49 [273]

Answer:

(a) minor arc: arc VX

major arc: arc VYX

(b) 248 degrees

Secant: UY

Step-by-step explanation:

(b) 360 - 112 = 248

UY crosses through the circle at exactly two points

5 0

4 years ago

Read 2 more answers

Bonita deposited $1300 into a bank account that earned 5.75% simple interest each year. She earned $299 in interest before closi

Marrrta [24]

After 4 years, the account gains $325.8, so 4 years

8 0

3 years ago

Read 2 more answers

Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen. She has 32 m

MAXImum [283]

Answer:

<h3> The width (side perpedicular to the barn): <u>x = 8 m</u></h3><h3> The lenght (side parallel to the barn): <u>y = 16 m</u> </h3>

Step-by-step explanation:

x - the width of the barn

She has 32 m of fencing so for the lenght remain (32-2x) m of fencing:

y = 32 - 2x

Area of the fencing: A = x•y

A(x) = x•(32 - 2x)

A(x) = -2x² + 32x ← quadratic function

The maximum value of quadratic function occurs at: $x=-\frac b{2a}$

a = -2, b = 32

$x=-\frac b{2a}=-\frac{32}{2\cdot(-2)}=-(-8)=8$

32-2x = 32 - 2•8 = 16

4 0

3 years ago