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vredina [299]
3 years ago
15

Which of these expressions are equivalent to −5+(2.5+315)⋅4.25 ? Choose the TWO correct answers.

Mathematics
1 answer:
qaws [65]3 years ago
4 0

Answer: A and D

Step-by-step explanation:because my teacher told me

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Will give brainiest answer. Which pair of ratios does NOT form a proportion?
gayaneshka [121]
C is the answer because the fractions are not proportional.

Answer: C. 9/14, 3/4
5 0
3 years ago
for these scenarios, write equations or inequalities that reflect the relationship. The minimum number of hours required to rent
IgorLugansk [536]

Answer:

100 + 35x \geq 280 is the inequality that reflect the relationship.

Step-by-step explanation:

Given:

Charge for rental =   $100

Additional charge =  $ 35

Minimum amount that can be spent =  $280

To Find:

equations or inequalities that reflect the relationship = ?

Solution:

Let x be the minimum number of hours

then the charge will  be

100  + (number of hours)(additional cost per hour)

That is

100 + 35x

Now the minimum charge amount is $280 So, The charge can be 280 or more than 280

100 + 35x \geq 280

3 0
3 years ago
What is 3d+8=2d-7 is equations
fredd [130]
3d + 8 = 2d - 7 equals d = -15.

First, 
subtract 2d from both sides. Your problem should look like: 3d + 8 - 2d = -7.
Second, simplify 3d + 8 - 2d to get d + 8. Your problem should look like: d + 8 = -7.
Third, subtract 8 from both sides. Your problem should look like: d = -7 - 8.
Fourth, simplify -7 - 8 to get -15. Your problem should look like: d = -15, which is your answer.

Hopefully this helps, I'm not exactly sure what you meant by "is equations," but this is how you solve the problem.
6 0
3 years ago
Paige launched a ball using a catapult she built. The height of the ball (in meters above the ground) ttt seconds after launch i
agasfer [191]

Answer:

1) Factor form : h(t)=-5t(t-8)

2) 8 second after launch.

Step-by-step explanation:

The height of the ball (in meters above the ground) t seconds after launch is modeled by

h(t)=-5t^2+40t

To find the time when ball hit the ground, we need to find the factor form of the given function.

h(t)=-5t(t-8)

When ball hi the ground, then height of the ball from the ground is 0.

h(t)=0

-5t(t-8)=0

Using zero product property, we get

-5t=0\Rightarrow t=0

t-8=0\Rightarrow t=8

Ball hit the ground at t=0 and t=8. It means ball hit the ground in starting and 8 second after launch.

5 0
3 years ago
Students went on a picnic. They recorded a list of the number of animals
lorasvet [3.4K]

Observation that we can make is min = 10, max = 19, range = 9, Maximum frequency of a number is 12, Average = 12.9, median = 12, mode = 12 it is slightly skewed on the right.

Step-by-step explanation:

  • It is imperative to create a data in a tabular column before analyzing.
  • Once the data is created use tally marks or frequency distribution.
  • Frequency distribution helps the data to provide occurrence of event.
  • Very important to number which is a counting numbers are discrete.
  • Continuous of data are ones which are in decimal.
  • Descriptive statistics is the 1st level of Statistics.
  • It finds, where the data stands. Minimum, Maximum is understandable.
  • Range is at what level data is expanded.
  • Average is the one numeric of a number.
  • Median is the mid point of data
  • Mode is the repetitive number of the data.
  • Skewness is whether data is having extreme directions.
5 0
3 years ago
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