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Over [174]
3 years ago
6

Help ASAP!!!!!!!! PLEASEE

Mathematics
1 answer:
WARRIOR [948]3 years ago
6 0

Her brother sent C. 490 messages.

In order to find this, we need to set it up as a proportion. Once we have done that, we can cross multiply and solve for the unknown variable.

(4/7) = (280/x) -----> Cross multiply.

4 * x = 7 * 280

4x = 1960

x = 490

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What is the value of x? Please help me
Travka [436]

Answer:

x=33

Step-by-step explanation:

because DC and AB are the same, x must be 33.

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n200080 [17]
For this case we first write the equation of which we will use:
 I (db) = 10log (l / l)
 We substitute the value of l.
 We have then:
 l = 10 ^ 8lo
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 I (db) = 10log ((10 ^ 8lo) / lo)
 Rewriting:
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4 0
3 years ago
Can someone help me with number 3 please??!!
ipn [44]
There are 2 way to solve this.

one using Pythagoras theorem and 2nd using trigonometry

so lets solve it by both

using Pythagoras theorem we know

base^2 + perpendicular^2 = hypotanes^2

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x = √(108) = √( 2×2×3×3×3)

= (2×3) √ (3) = 6 √3

so answer is option 2

bow lets use trigonometry

we know
sin theta = perpendicular / hypotanes
sin 60 = x /12
x = 12 × sin 60
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7 0
3 years ago
A local vet wants to survey his clients about their satisfaction regarding the care their pet received. He groups all of the cli
babymother [125]

Answer: Stratified Random Sampling

Step-by-step explanation: Got it right

8 0
2 years ago
Read 2 more answers
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dimaraw [331]

Answer:

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Step-by-step explanation:

Base amount: $7,800.00

Interest Rate: 6.5% (yearly)

Effective Annual Rate: 6.5%

Calculation period: 29 years

4 0
3 years ago
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