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3 years ago

Please help me with this question!!

Mathematics

1 answer:

Bess [88]3 years ago

4 0

Answer:

$x=16 * cos(46)$

Step-by-step explanation:

Well, first let's look at our trig identities. We can set up a cosine function using the given angle:

$cos (46^{o} ) = \frac{x}{16}$ (adjacent/hypotenuse)

Then, multiplying both sides by 16 gives us:

$x=16 * cos(46)$

Hope this helps!

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A regular tube of toothpaste costs $2.50 for 3.2 ounces. A travel size tube costs $1.00 for 1.2 ounces. Compare the prices and w

Len [333]

Answer:

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

Step-by-step explanation:

step 1

<em>Find out the unit rate of a regular tube of toothpaste</em>

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{2.50}{3.2}=\$0.78\ per\ ounce$

step 2

<em>Find out the unit rate of a travel size tube of toothpaste</em>

we know that

To find out the unit rate, divide the total cost by the total weight

$\frac{1.00}{1.2}=\$0.83\ per\ ounce$

step 3

Find out the percent of increase

we have that

The unit rate $\$0.83\ per\ ounce$ represent the 100%

so by proportion

Find out what percentage represent the difference ($0.83-$0.78=$0.05 per ounce)

$\frac{0.83}{100\%}=\frac{0.05}{x}\\\\x=100(0.05)/0.83\\\\x=6\%$

therefore

The travel size costs 6 % as much as the regular size. Thus the regular size would be more economical and thus a better buy

6 0

3 years ago

Which statement matches the inequality − 2 < 9?

swat32

Answer: Answer is C.

Step-by-step explanation: It is because positive numbers go to the right, and negative numbers to the left.

Hope that helps :)

8 0

2 years ago

Read 2 more answers

Do the ratios form a proportion? Explain how you arrived at your answer. 9/6 and 156/104

sattari [20]

9:6,9/6, 9x6 156/104 , 156:104 , 156x104 because there the same thing but different signs

8 0

3 years ago

15 POINTS!!! PLEASE HELP ASAP! WILL MARK BRAINLIST!

olga nikolaevna [1]

Answer:

136

Step-by-step explanation:

hyo^2=opp^2+adj^2

x^2=6^2+10^2

x^2=36+100

x^2=136

$\sqrt{136}$

5 0

2 years ago

Read 2 more answers

The rectangle below has an area of x^2-9x

Romashka-Z-Leto [24]

Answer:

(x+3)m

Step-by-step explanation:

Area of a rectangle = Length × width

Given the area = (x²-9)m²

Width = (x-3)m

Length of the rectangle = Area/Width

Length of the rectangle = x²-9/x-3

= x²-3²/x-3

Note that according to different of two square, a²-b² = (a+b)(a-b)

Therefore x²-3² = (x+3)(x-3)

Length of the rectangle

= (x+3)(x-3)/x-3

= x+3

The length of the rectangle is (x+3)m

5 0

3 years ago