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SVETLANKA909090 [29]
3 years ago
14

A red ballon starts at 7 meters off the ground and rises at 3 meters per second. A ballon starts at 12 meters off the ground and

rises at 2 meters per second. Write and solve an equation to determine when the balloons are at the same height
Mathematics
1 answer:
GrogVix [38]3 years ago
4 0
Let x be the no. of seconds it takes for the balloons to be at the same height.
7+3x = 12+2x
Deduct both sides by 2x.
7+x = 12
Deduct both sides by 7.
x = 5
Ans: It will take 5 seconds for the balloons to be at the same height.
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factor completely 4x5 − 20x4 − 36x3. 4(x5 − 5x4 − 9x3) x3(4x2 − 20x − 36) x2 − 5x − 9 4x3(x2 − 5x − 9)
Mila [183]

Consider the polynomial 4x^5 - 20x^4 - 36x^3. It has three terms and their greatest common factor is 4x^3.

Since

4x^5=4x^3\cdot x^2,\\20x^4=4x^3\cdot 5x,\\36x^3=4x^3\cdot 9,

then

4x^5 - 20x^4 - 36x^3=4x^3(x^2-5x-9) (you write in brackets the same sign as the corresponding term has).

Answer: correct choice is D.

3 0
3 years ago
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Jenna was 4 4/6 feet tall last year. This year she is 5 2/6 feet tall. How many feet did Jenna grow in the past year
oee [108]
You want to subtract the heights. 5 2/6-4 4/6=5 1/3-4 2/3=2/3.
5 0
3 years ago
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Help thank youuu -Eric chavez
Sphinxa [80]

Answer:

y = 4x + 5

Step-by-step explanation:

5 0
3 years ago
A cab company charges $2.51
kondor19780726 [428]

equation would be the start at 2.51 and go up 1

2.51 + 1x=91.52

we would start by subtracting 2.51

98.01 = x

so they drove 98.01 miles

if you were looking for time you would need the mph if the car was going around 50 it would be close to 2 hours

3 0
3 years ago
STATISTICS in a recent year the mean score on the mathematics section of the SAT test was 515 and the standard deviation was 114
vesna_86 [32]

An absolute value inequality to find the range of SAT mathematics test scores within one standard deviation of the mean is; |x – 515| ≤ 114

<h3>How to Write Inequalities?</h3>

A) We are told that;

Mean score = 515

Standard deviation = 114

We are now given that people within one deviation of the mean have SAT math scores that are no more than 114 points higher or 114 points lower than the mean. Thus, the absolute value inequality is;

|x – 515| ≤ 114

B) The range of scores to within ±2 standard deviations of the mean is;

Range = 515 ± 2(114)

Range = 287 to 743

Read more about Inequalities at; brainly.com/question/25275758

#SPJ1

3 0
2 years ago
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