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3 years ago

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A hummingbird flaps its wings 1500 times per minute while airborne. While migrating south in the winter, how many times during a

1.5 hour flight does the hummingbird flap its wings? (reminder- to get the extra credit you MUST attach work)
p.s. i need the work to how to do it

1 answer:

sergey [27]3 years ago

5 0

Answer:

135,000

Step-by-step explanation:

1.5 hour means 90 minutes

1500 * 90 = 135000

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Solve the system of equations for x and y.<br> y = x + 5<br> y = 2x + 2

DIA [1.3K]

Answer (x,y) (3, -2)

Explanation:
using the
substitution method
y
=
x
−
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→
(
1
)
y
=
−
2
x
+
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→
(
2
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since both equations are expressed in terms of x we

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⇒
x
−
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add 2x to both sides
2
x
+
x
−
5
=
−
2
x
+
2
x
+
4
⇒
3
x
−
5
=
4
add 5 from both sides
3
x
+
5
−
5
=
4
+
5
⇒
3
x
=
9
divide both sides by 3
3
x
3
=
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3
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substitute this value in
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As a check
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3 years ago

Determine the value of a if one solution to the quadratic equation is x equals 5 + 3/2 I

Sindrei [870]

The value of a is $\frac{-9}{4}$

Step-by-step explanation:

<u>1. Determine the other solution of x</u>

If one value is 5 + $\frac{3}{2}$ then the other value is 5 - $\frac{3}{2}$

<u>2. Use reverse technique to find the equation</u>

(5 + $\frac{3}{2}$ ) (5 - $\frac{3}{2}$ ) = 0

25 - $\frac{-15}{2}$ + $\frac{15}{2}$ - $\frac{9x^{2} }{4}$ = 0

- $\frac{9x^{2} }{4}$ + 25 = 0

<u>3. The equation is</u> - $\frac{9x^{2} }{4}$ + 25 = 0

<u>4. Find the value of a</u>

a is the number with the variable $x^{2}$ therefore it is - $\frac{9}{4}$

Keyword: quadratic equation, solution

Learn more about quadratic equation at

#LearnwithBrainly

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