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dem82 [27]
3 years ago
8

Can sum1 help me w this plz

Mathematics
2 answers:
mel-nik [20]3 years ago
5 0

Answer:  x = 1.28 or -1.28

Westkost [7]3 years ago
4 0

Answer:

x1= -1.6, x2= 1.6

Step-by-step explanation:

x^2= 2.56

x^2= 64/25

x= +8/5, -8/5

Alternative form= (-1.6), (1.6)

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Write an expression to represent Vivian's change in elevation from -9.6 feet at the bottom of the Ferris wheel to 12.3 feet at
Effectus [21]

Answer:

<h2><em>ΔE =12.3 - (-9.6) which is equivalent to 21.9 feet </em></h2>

<em />

Step-by-step explanation:

Give the distance covered by Vivian at the bottom of the elevation to be -9.6 feet and the distance covered by Vivian at the top of the elevation to be 12.3 feet, Vivian's change in elevation will be expressed as the difference in the elevation at the bottom and the elevation at the top.

Let the initial elevation Ei = -9.6 feet

Final elevation Ef = 12.3 feet

Change in elevation ΔE = Ef - Ei

Change in elevation ΔE =12.3 - (-9.6)

Change in elevation ΔE = 12.3 + 9.6

Change in elevation ΔE = 21.9 feet

<em>Hence the expression to represent Vivian's change in elevation from -9.6 feet at the bottom of the Ferris wheel to 12.3 feet at  the top is </em><em>ΔE =12.3 - (-9.6) which is equivalent to 21.9 feet </em>

<em />

<em />

<em />

5 0
3 years ago
Simplify:<br> x2 +5x-14<br> x2+10x+21
goblinko [34]

Answer:

4x + 15x + 7

Step-by-step explanation:

x2 + x2 = 4x

5x + 10x = 15x

-14 + 21 = 7

5 0
2 years ago
cathy picks 216 pears. she packs the same number of pears into each box. All of the pears are put into boxes. She can choose a b
evablogger [386]

She should pick the box which holds 8 pears. 8*27 is exactly 216.

8 0
3 years ago
A teacher has 96 pencils to give to her students. If they came in boxes of 6, how many boxes of pencils does she have?
exis [7]

Answer: She had 16 boxes of pencils.

Step-by-step explanation: Divide 96 by 6 to get 16.

6 0
3 years ago
Read 2 more answers
f(x)=(x+3)(x-4) and g(x)=1/3(x+3)(x-4). the graphs of each are shown here. Which graph represents which polynomial function? exp
zvonat [6]

This is about interpretation of quadratic equation graphs.

<u><em>- The parabola that is continuous represents f(x) = (x+3)(x-4)</em></u>

<u><em>- The parabola that is a broken line represents g(x) = 1/3(x+3)(x-4)</em></u>

<u><em>- This is because calculating their y-intercept respectively corresponds with what is on the graph.</em></u>

  • We are given;

a) f(x) = (x+3)(x-4)

Let us confirm the x-intercept.

x-intercept here is when y = 0.

Thus, at y = 0; x + 3 = 0 and x - 4 = 0

Thus, at y = 0; x = -3 and y = 4

  • Let's now find the y-intercept;

y-intercept occurs when x = 0

Thus; y - intercept = (0 + 3)(0 - 4)

y - intercept = -12

  • Looking at the graph given, the only one that has it's y-intercept as -12 is the graph that has a continuous line.

  • This means the other graph that has dashed line would represent the other polynomial g(x)=1/3(x + 3)(x - 4)

Read more at; brainly.in/question/18896888

4 0
2 years ago
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