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Tanya [424]
2 years ago
14

Select all the expressions that are equivalent to - 2/5 (15-20d + 5c).

Mathematics
1 answer:
Nostrana [21]2 years ago
4 0
One of them is -6+8d-2c
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a store has a 20% off sale on pants with this discount, the price of one pair of pants before tax is $15.20. what was the origin
anastassius [24]

Answer:

19$

Step-by-step explanation:

In this problem, we have to apply the rule of three. Also, we must have present that $15.20 is the 80% of the price, because the store offers a 20% of discount. So, if $15.20 is 80%, how much would be the 100%?

Therefore, the original price of the pants is $19.

Remember that we must identified the right proportion to apply the rule of three, in this case, that proportion is the 80% with 15.20, that's the reason or fraction center of the whole operation.

7 0
2 years ago
In the derivation of the formula for the volume of a cone, the volume of the cone is calculated to be times the volume of the py
scZoUnD [109]

Answer:

B :it is the ratio of the area of the circle to the area of the square from a cross section.

Step-by-step explanation:

had this question on ed2020 and got it right^

5 0
3 years ago
Read 2 more answers
Sin0=12/37 find tan0
alexira [117]

Answer:

\large{ \tt{❃ \: EXPLANATION}} :

  • We're provide - Sin θ = \frac{12}{37} which means 12 is the perpendicular & 37 is the hypotenuse [ Since Sin θ = \tt{  \frac{p}{h}} ] . We're asked to find out tan θ ].

\large{ \tt{❁ \: USING \: PYTHAGORAS \: THEOREM}} :

\large{ \tt{❊ \:  {h}^{2}  =  {p}^{2}  +  {b}^{2} }}

\large{ \tt{⇢ {p}^{2} +  {b}^{2}   =  {h}^{2} }}

\large{ \tt{⇢ \:  {b}^{2}  =  {h}^{2}  -  {p}^{2} }}

\large{ \tt{⇢ \:  {b}^{2} = {37}^{2} -  {12}^{2}   }}

\large{ \tt{⇢ \:  {b}^{2}  = 1369 - 144}}

\large{ \tt{ ⇢{b}^{2}  = 1225}}

\large{ \tt{⇢ \: b =  \sqrt{1225}}}

\large{ \tt{⇢ \: b = 35  \: \text {units}}}

  • Now , We know - Tan θ= \tt{ \frac{perpendicular}{base} }. Just plug the values :

\large{ \tt{➝ \: Tan  \: \theta =  \frac{p}{b}  = \boxed{ \tt{  \frac{12}{35} }}}}

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

5 0
3 years ago
Which function defines the sequence -16,-22,-28,-34 where f(10)= -70
-Dominant- [34]

Answer:

f(n) = -6n - 10.

Step-by-step explanation:

This is arithmetic sequence with first term a1 = -16 and common difference d = -6.

So f(n) = a1 + d(n - 1)

= -16 - 6(n - 1)

= -16 - 6n + 6

= -6n - 10.

Checking:

f(10) = -6(10) - 10 = -70.

5 0
2 years ago
Will give brainliest!! Linda had a great week in basketball. In two games she scored a total 41 points and made 17 shots. If she
Ilia_Sergeevich [38]

Answer:

16 3 pointer shots 1 2 pointer shots

Step-by-step explanation:

I subtracted 3 pointers and did it 16 times and subtracted 2 one time

I hope I helped

8 0
2 years ago
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