3 years ago

Help or else i’ll fail

Mathematics

1 answer:

Georgia [21]3 years ago

8 0

The answer is equilateral

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Martha and her brother started their own car-washing business. They charge $8.50 per car. If they wash on average 22 cars per we

Bezzdna [24]

Answer:

$1,000

Step-by-step explanation:

Given that:

Charge per car = $8.50

Averahe car washed per weekend = 22

Using front end estimation, how much will business earn in 5 weeks ;

Hence amount earned per weekend :

22 * $8.50 = $187

Using front end estimation :

$187 - - -> $200

$200 * number of weeks

($200 * 5) = $1,000

7 0

3 years ago

I don’t know the answer to the question in the picture above

Andrej [43]

Answer:

x=-7/4

Step-by-step explanation:

4x+7=0

4x=-7+0

4x=-7

x=-7/4

8 0

3 years ago

Solve in 10seconds or less i will chose the best awnser if it's blank deleted question

Tpy6a [65]

Answer:

5.35

Step-by-step explanation:

8 0

4 years ago

F(x)=(x+7)^3 expand the function

nydimaria [60]

Step-by-step explanation:

F(x) = (x + 7)³

= 3C0 * x³ + 3C1 * x² * 7 + 3C2 * x * 7² + 3C3 * 7³

= x³ + 21x² + 147x + 343.

4 0

3 years ago

Read 2 more answers

Two friends compete with each other and five other, equally good, violinists for first and second chair in an orchestra, in a bl

Darina [25.2K]

Answer: 0.0476

Step-by-step explanation:

Given : Two friends and 5 other people compete with each other for first and second chair in an orchestra.

Total people in this competition= 2+5=7

By permutation , Number of ways to arrange 7 people= 7!

Also, number of ways for two friends end up as first and second chair together= 2 × 5! [ 2 ways to arrange friends on first and second chair and 5! ways to arrange others]

I.e. Required probability = $\dfrac{2\times5!}{7!}$

$=\dfrac{2!\times5!}{7\times6\times5!}\\\\=\dfrac{1}{7\times3}\\\\=\dfrac{1}{21}\\\\=0.0476$

Hence, the probability that the two friends end up as first and second chair together = 0.0476

4 0

4 years ago