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3 years ago

Question 1

Mathematics

2 answers:

belka [17]3 years ago

8 0

Answer:

Yes I believe so

Step-by-step explanation:

sertanlavr [38]3 years ago

7 0

Is she is right because 2-1=1 and the equations is 2-1 3/8 so there will definitely be a fraction

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Can someone please answer. There is one problem. There's a picture. Thank you!

schepotkina [342]

Sin(12) ≈ 0.208

cos(x) = 0.208
  cos(x) = sin(12)
cos(78) = sin(12)

  cos(12) ≈ 0.978
  cos(68) ≈ 0.375
cos(102) ≈ -0.208
  cos(78) ≈ 0.208

The answer is D.

4 0

3 years ago

30-[11+{18-(48÷8×2)}+7]+15

Inessa05 [86]

30-(11+(18-(48/8×2))+7)+15

= 30-(11+(18-12)+7)+15

= 30-(11+6+7)+15

= 30-24+15

= 21

3 0

3 years ago

Please help me I DO NOT UNDERSTAND

stepladder [879]

Are they asking for the surface area?

8 0

2 years ago

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

29/7 how u make mixes

Snowcat [4.5K]

Answer:

Step-by-step explanation:

6 0

3 years ago