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Inga [223]
1 year ago
11

Simplify the following expression.

Mathematics
2 answers:
lidiya [134]1 year ago
7 0

Answer:

C: 51X+42Y

13x + 38x + 9y + 33y

adding,

51x + 42y so option C

BlackZzzverrR [31]1 year ago
4 0
1) take away the brackets and distribute the plus:
13x + 9y + 38x + 33y

2) add the like terms
13x + 38x + 9y + 33y
= 51x + 42y
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Marcus rode his bike 60 miles in 4 hours. Marcus thinks that in order to find the unit rate, he should determine how far he rode
ELEN [110]

Answer:

No, he is not correct

Step-by-step explanation:

To find the unit rate you need to .60 by 4. you will get 2.4, which is the

unit rate. he rides his bike 2.4 mph.

4 0
2 years ago
How many different four-digit numbers can be made using the digits 1, 2, 3, 4, 5, 6 if no digit can be used more than once?
Allushta [10]
This is 6P4
the number of permutations of 4 from 6.  6! / 2!

= 6*5*4*3* 2 /  2 = 360
4 0
3 years ago
Tessa is cooking steak for her family. She wants to be sure the steak has an internal temperature of at least 160 degrees Fahren
Over [174]

Answer:

<u>Population : all the steaks Tessa can cook</u>

<u>Parameter : minimum internal temperature of 160 degrees Fahrenheit</u>

<u>Sample : two random thermometer readings</u>

<u>Statistic : minimum sample reading of 165 degrees Fahrenheit</u>

Step-by-step explanation:

Let's recall the definitions of these statistical concepts and match it with the information that were provided to us:

  • Populations can be the complete set of all similar items that exist, in our case, all the steaks that Tessa can cook.
  • Parameter is is a value that describes a characteristic of an entire population, such as the minimum temperature of the steaks Tessa is cooking in Fahrenheit degrees.
  • Sample is a subset of the population, in our case, the two random readings of the thermometer Tessa did.
  • Statistic is a characteristic of a sample, for our problem, it's the minimum reading of 165 degrees Fahrenheit.
3 0
3 years ago
Megan constructed triangle ABC. In Megan's triangle,
mylen [45]

Answer:

21°, 84°, 75° are the angles

Step-by-step explanation:

Total angle in a triangle is 180.

x + 4x + (5x - 30) = 180

10x - 30 = 180

10x = 210

x = 21°

Angles are:

A: 21°

B: 4(21) = 84°

C: 5(21) - 30 = 75°

5 0
3 years ago
Roscoe rides his bike atleast 10 miles but no more than 30 miles. He rides at an average rate of 10.5 miles per hour. The amount
dusya [7]
The domain, or the distance traveled, is all real numbers from 10 to 30, inclusive. the answer is A
7 0
3 years ago
Read 2 more answers
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