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PolarNik [594]
2 years ago
6

PLEASE ANSWER! IM DESPERATE PLEASE;;

Mathematics
1 answer:
harkovskaia [24]2 years ago
4 0

Answer:

1. 8c^2 + 24c - 6

2. B

3. 4 and 3

4. -90cd 168c3d -30c2

Step-by-step explanation:

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Cheese sticks that were previously priced at "10 for $1" are now "2 for $1". Find each percent change.
AysviL [449]

Answer:

The percent decrease in the number of cheese sticks you can buy for $1 is 80%.

Step-by-step explanation:

Given : Cheese sticks that were previously priced at "10 for $1" are now "2 for $1".

To find : The percent decrease in the number of cheese sticks you can buy for $1 ?

Solution :

The formula used to find percent decrease is given by,

\%\text{ change}=\frac{\text{Amount of change}}{\text{Original amount }}\times 100

The price change from 10 to 2,

\%\text{ change}=\frac{10-2}{10}\times 100

\%\text{ change}=\frac{8}{10}\times 100

\%\text{ change}=80\%

The percent decrease in the number of cheese sticks you can buy for $1 is 80%.

7 0
2 years ago
The art museum is 8 1/2 miles from Alison's house. Alison has ridden her bike 2/3 of the way there so far. How far how she gone?
ozzi
Alison is 2/3 of the way to the museum, so the answer is about 2/3 of 9, or 6 miles.  Let's calculate it:

  2                              17 miles
---- * (8 1/2 miles) = --------------     She has ridden (17/3) miles, which is 5 2/3 
 3                                    3             miles.
8 0
2 years ago
Read 2 more answers
If JL=18, NK=12, and ML=10, find the perimeter of JKLM<br> A. 42<br> B. 45<br> C. 50<br> D. 56
snow_lady [41]

Answer:

The perimeter of the kite JKLM is 50 units ⇒ C

Step-by-step explanation:

The longest diagonal of the kite is its axis of symmetry which means the longest diagonal divides the kite into two congruent triangles

∵ JKLM is a kite

∵ KM is the longest diagonal

∴ KM is divides the kite into two congruent triangles

∴ Δ JKM is congruent to Δ LKM

∴ JK = LK

∴ JM = ML

∵ ML = 10 units

∴ JM = 10 units

∵ The diagonals of the kite are perpendicular

∴ KM ⊥ JL

∵ KM and JL intersected at N

∴ m∠JNK = 90°

∵ KM is the axis of symmetry of kite JKLM

∴ KM bisects JL at N

∴ JN = NL = \frac{1}{2} JL

∵ JL = 18 units

∴ JN = \frac{1}{2} (18)

∴ JN = 9 units

In Δ JNK

∵ m∠JNK = 90°

∵ JN = 9 units

∵ NK = 12 units

- By using Pythagoras Theorem

∵ (JK)² = (JN)² + (NK)²

∴ (JK)² = (9)² + (12)²

∴ (JK)² = 81 + 144

∴ (JK)² = 225

- Take √ for both sides

∴ JK = 15 units

∵ Jk = LK

∴ Lk = 15 units

∵ The perimeter of the kite is the sum of its 4 sides

∴ P = JK + KL + LM + MJ

∵ JK = LK = 15

∵ JM = ML = 10

∴ P = 15 + 15 + 10 + 10

∴ P = 50

The perimeter of the kite JKLM is 50 units

7 0
2 years ago
Mr. Smith works on a temporary basis. The mean length of each job he gets is three months. If the amount of time he spends betwe
Eduardwww [97]

Answer:

Mr Smith gets a new job, every 5 months on the average.

Step-by-step explanation:

Mr Smith spends an average of 3 months on every job he gets.

Then he spends an average of 2 months in between jobs.

Meaning, on the average, if he has a job, he does it for 3 months, then leaves, lends the next 2 months without a job, then gets another job at the end of the 2 months without a job and then he repeats the cycle of 3 months on the job, 2 months without the job.

So, on the average it takes Mr. Smith, (3+2) months to get a new job.

6 0
2 years ago
Which rays are part of line BE?
ELEN [110]
I think the answer is AB and AE but I need a picture to be sure.
8 0
2 years ago
Read 2 more answers
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