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2 years ago

Write a quadratic equation whose roots are -4 and one and who's leading coefficient is five

Mathematics

1 answer:

Alex2 years ago

7 0

Step-by-step explanation:

- 4 and 1 are roots.

Therefore, (x + 4) & (x - 1) are factors and 5 is leading coefficient.

Therefore, required quadratic equation is:

$5 (x + 4) (x - 1) \\ = 5( {x}^{2} - x + 4x - 4) \\ = 5( {x}^{2} + 3x - 4) \\ = 5 {x}^{2} + 15x - 20$

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If a is directly proportional to b/2 and a=1 when b=10, what is the value of a when b=35

iris [78.8K]

The value of a would be 3.5, as a=1 when b=10 means that a is worth 1/10 of b's value.

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2 years ago

A ferry charges $30 per car plus $5 for each passenger in the car.

ad-work [718]

They have to pay the 30$ fee first then it depends on how many people are coming with you

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2 years ago

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Plz HELP! WILL GIVE BRAINLIEST!<br><br>1. Consider the picture below. Find the measure of ∠CEA.

pashok25 [27]

Answer:

103°

Step-by-step explanation:

The marked angles have the same measure, so ...

14x+7 = 12x +17

2x = 10 . . . . . subtract 12x+7

x = 5 . . . . . . . divide by 2

(14x +7)° = 77°

∠CEA is supplementary to the marked angles:

∠CEA = 180° -77°

∠CEA = 103°

4 0

2 years ago

3 over 8 multiplied by 10 over 9 multiplied by 16

Gnom [1K]

Answer:

20/3

Step-by-step explanation:

(3/8)*(10/9)*16

This is 30/72 = 5/12

5/12*16=20/3

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1 year ago

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Compute 4.659×104−2.14×104. Round the answer appropriately.

iogann1982 [59]

Answer:

261.98 is the value of the given expression.

Step-by-step explanation:

We have to find the value of the following expression:

$4.659\times 104 - 2.14\times 104$

Using the associative property, we can write and solve the given expression as:

$(4.659 - 2.14)\times 104\\=2.519\times 104\\=261.976$

Rounding off the answer, we get,

$261.976\approx 261.98$

Thus, 261.98 is the value of the given expression.

3 0

2 years ago