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Burka [1]
3 years ago
13

9 * -2 n + 3 equals -27

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
6 0

Answer:

n=5/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−18n+3=−27

Step 2: Subtract 3 from both sides.

−18n+3−3=−27−3

−18n=−30

Step 3: Divide both sides by -18.

−18n−18=−30−18

n=53

Ulleksa [173]3 years ago
6 0

Answer:

that would be x= 3

Step-by-step explanation:

If you were to times -2n and 3 that would make -18 + 27.

You then subtract 27 from -27 making it -54. You then divide -18 from -54 making it into a positive 3. So x = 3

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Daredevil Danny hoop jump Step 4: b) Using your values of a, b, and c, did Daredevil Danny successfully pass through the Flaming
Sidana [21]

The equation of Daredevil Danny's jump in vertex form is y = -0.32(x - 25)^2 + 32

<h3>The values of the coefficients a, b and c</h3>

The graph of Daredevil Danny's jump is added as an attachment

A quadratic function is represented as:

y = a(x - h)^2 + k

From the graph, we have:

  • Vertex, (h, k) = (25,32)
  • x-intercepts = 15 and 35

So, we have:

y = a(x - 25)^2 + 32

Substitute the value of the x-intercept

0 = a(15 - 25)^2 + 32

Subtract 32 from both sides

a(15 - 25)^2 = -32

Solve for a

a = -0.32

Substitute a = -0.32 in y = a(x - 25)^2 + 32

y = -0.32(x - 25)^2 + 32

Expand the exponent

y = -0.32(x^2 -50x + 625) + 32

Expand the bracket

y = -0.32x^2 + 16x - 200 + 32

This gives

y = -0.32x^2 + 16x - 168

Hence, the values of the coefficients a, b and c are -0.32, 16 and -168

<h3>Did he jump successfully?</h3>

Yes, he jumped successfully

This is so because his maximum height (i.e. the vertex of his jump) is higher than the vertex of the hoop

Read more about quadratic functions at:

brainly.com/question/22679014

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6 0
2 years ago
Please answer the two questions.
Anarel [89]

Answer:

1. n= 14

2. n=3

Step-by-step explanation:

For the first problem, let's break down the equation. The number being thought about can be represented by <em>n</em>. Then <em>n </em>is increased by 7, or simply put 7+ <em>n. </em>The sum is 21, so to find n you can use the equation 7 + n = 24 and solve for <em>n, </em>which is 14.

For problem two, the same strategy can be used. The number is <em>n, </em>multiplied by 9. So, 9 * <em>n</em> is equal to 27. Solve for n by isolating n, and the answer is 3.

6 0
3 years ago
Read 2 more answers
 Amy​'s car holds at most 19 gallons of gas. Now it has 9 gallons. Use pencil and paper. Explain how to find the amount of gas s
Kazeer [188]

Answer:

10 gallons

Step-by-step explanation:

Amy​'s car's maximum capacity to hold gas = 19 gallons

present amount of gas  = 9 gallons

As the car's capacity is 19 gallons and present amount in tank is 9 gallons, so we can fill it as much as so that the amount in tank becomes 19 gallons.

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6 0
3 years ago
What type of number is -84/4? <br><br>whole<br>integer<br>rational​
Advocard [28]
Integer -84/4 = -22 which is an integer.
5 0
3 years ago
Read 2 more answers
Can someone help me with this question please!!!!!
faltersainse [42]
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Next, we can use the Pythagorean Theorem to solve for x:

a² + b² = c²
x² + (x + 20)² = 100²

This simplifies to:

x² + x² + 40x + 400 = 10000
2x² + 40x = 9600
2x² + 40x - 9600 = 0

After that, we can divided each side by 2:

x² + 20x - 4800 = 0

Next, we have to factor:

(x - 60)(x + 80) = 0
x = 60, -80

Since we know that distance can't be negative, 60 is the valid answer in this case.

x = 60
x + 20 = 80

Using this information, we know that the westbound car traveled 60 miles and the northbound car traveled 80 miles.

6 0
2 years ago
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