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Reil [10]
3 years ago
5

What is the first step in solving for “b”?

Mathematics
2 answers:
dlinn [17]3 years ago
7 0

Answer:

c

Step-by-step explanation:

Airida [17]3 years ago
4 0

Answer:

c)

Step-by-step explanation:

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Parabolic microphones are used for field audio during sports events. The microphones are manufactured such that the equation of
S_A_V [24]

Answer:

a. 8.5 in.

b. 34 in

c. x = 1/39 x^2.

Step-by-step explanation:

Part a.

x = 1/34 y^2

y^2 = 34x

Comparing with y^2 = 4px where p is the focus:

4p = 34

p = 8.5 in.

Part b.

The diameter = 4p = 34 in.

Part c.

Diameter = 4p = 34 + 5 = 39 in

The new equation is x = 1/39 x^2.

4 0
3 years ago
Multiply and simplify the following complex numbers:<br> (-3 - 2i) x (-4 + 2i)
Alja [10]
(-3 - 2i) x (-4+ 2i) if you simplify using FOIL you will get 16+2i
5 0
3 years ago
what happens to 5/x + 5 as x decreases from a large positive number to a small positive number? does it increase, decrease, or s
bulgar [2K]

Answer:

Increases

Step-by-step explanation:

It increases because, the greater the value of x the smaller the fraction is. If x was 25 the fraction would be 5/25 this makes the value of the equation 5.2. Now if x was a smaller positive number like 5. Then the fraction would be 5/5 which would cause the equation to be equal to 6.

5 0
3 years ago
Read 2 more answers
Please help! Will give Brainliest and 20 POINTS!
jarptica [38.1K]
Your answer would be the first on because when you set up your equation you can find 4 by dividing 42,980 by 10 4 times wich will give you 10^4 when you divide exponents you subtract so iwill look like this....

5x10^6
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4x10^4
3 0
3 years ago
Mackin Investing charges its customers a 1% commission. The Ross Group, a discount broker, charges $25 per trade. For what amoun
olchik [2.2K]

Answer:

The amount of stock for which both brokers would charge the same commission is $2500.

Step-by-step explanation:

i) Let the amount of stock to be traded be worth $x

ii) therefore for both the brokers to charge the same commission we can write

   1% of x  = $25 \RIghtarrow\Rightarrow  0.01 \times x  = 25  \therefore   x = \frac{25}{0.01}  = 2500

The amount of stock for which both brokers would charge the same commission is $2500.

5 0
3 years ago
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