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2 years ago

Christian’s lunch costs $1.75. He bought lunch 8 days in a row. How much money did Christian spend on lunch?

Mathematics

2 answers:

Elodia [21]2 years ago

8 0

Answer:

Step-by-step explanation:

Just multiply 1.75 by 8.

Ipatiy [6.2K]2 years ago

7 0

Answer:

$14

Step-by-step explanation:

$1.75 · 8 = $14

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Sin theta = 24/25, cos theta > 0, Find cos(2theta)

Norma-Jean [14]

Well... you don't necessarily need to get the cosine value, in order to get the double angle

$\bf \textit{Double Angle Identities}
\\ \quad \\
sin(2\theta)=2sin(\theta)cos(\theta)
\\ \quad \\\\
cos(2\theta)=
\begin{cases}
cos^2(\theta)-sin^2(\theta)\\
\boxed{1-2sin^2(\theta)}\\
2cos^2(\theta)-1
\end{cases}
\\ \quad \\\\
tan(2\theta)=\cfrac{2tan(\theta)}{1-tan^2(\theta)}\\\\
-------------------------------\\\\
cos(2\theta )=1-2sin^2(\theta )\qquad \qquad sin(\theta )=\cfrac{24}{25}
\\\\\\
cos(2\theta )=1-2\left( \cfrac{24}{25} \right)^2\implies cos(2\theta )=-0.8432$

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3 years ago

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Find g-1(3):<br> g(x) =<br> 2x+2<br> 2x + 2<br> 4

Maslowich

Answer:

download phto math and scan

Step-by-step explanation:

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2 years ago

Write a number with three decimal places greater than 4.74 and less than 4.75

padilas [110]

4.741

4.742

Really, you could stick any digit from 1-9 at the end of 4.74 to create your answer.

7 0

3 years ago

While in transit, the antitoxin had to stay between 36ºF and 46ºF. The dogsled teams stopped along the route often to warm the a

eimsori [14]

Range is the difference between the largest and the smallest numbers in a given contest

Hence the range
= 46 - 36
= 10 °F

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1 year ago

Find the volume of the square pyramid, given its slant height

Reptile [31]

Answer:

Step-by-step explanation:

base length b = 32 cm

slant height L = 30 cm

height h = √(L²-(½b)²)

= √(30²-0.25·32²)

≅ 25.3771550809 cm

volume V = (⅓)b²h

= (⅓)32²·25.38

≅ 8662.07 cm³

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2 years ago