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svp [43]
1 year ago
7

Simplify each expression. 4. −8(x+2)+2(x−1)= 5. −(x−3)+2(x−7=) 6. −2(3x+4)−2x−5=

Mathematics
1 answer:
miss Akunina [59]1 year ago
6 0

Answer: -6(x+3) 4)

5)

Step-by-step explanation:

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Circle A has radius 4 feet. Circle B has radius 9 feet. What is the ratio of the area of circle A to the area of circle B?
yaroslaw [1]

Answer:

\large\boxed{\dfrac{16}{81}}

Step-by-step explanation:

The formula of an area of a circle:

A=\pi r^2

r - radius

Circle A:

radius = 4 ft. Substitute:

A_A=\pi(4^2)=16\pi\ ft^2

Circle B:

radius = 9 ft. Substitute:

A_B=\pi(9^2)=81\pi\ ft^2

The ratio:

\dfrac{A_A}{A_B}=\dfrac{16}{81}

7 0
3 years ago
Which of the following is a rational number?
topjm [15]
97 is the rational number
5 0
4 years ago
120 students are interviewed.
Dmitrij [34]

Answer:

The probability of selecting a students that drinks sugar free red bull is <em><u>0.1</u></em>

Step-by-step explanation:

In this question, we are concerned with calculating probability that out of the 120 students interviewed, a student chosen at random drinks sugar free red bull.

Mathematically, the probability is = number of students that drinks sugar free red bull/Total number of students interviewed

We know the total number of students interviewed, but we do not know the number of students that drink sugar free red bull.

Now looking at the question, we can see that all the students interviewed has the choice of having only to drinks, monster or red bull.

Since 72 students drink monster, the number of students that take red bull = 120 - 72 = 48

Now from this 48, we have a ratio. The ratio of regular type to sugar free is 3:1. The number taking sugar free is thus 1/4 × 48 = 12 students

The probability of choosing a student that drinks sugar free red bull is thus 12/120 = 1/10 = 0.1

3 0
4 years ago
*above is just a random photo of my dog in a baby swing because he’s tiny enough to fit in one*
Gemiola [76]

Answer:

Well  my day is going good, I'm safe and nice dog!, he's cute

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Multiply 214 by 112 using the standard paper and pencil algorithm
Artyom0805 [142]
If you multiply 214 by 112 you would get the answer 23,968.Believe me i did the math.

6 0
3 years ago
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