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Svet_ta [14]
4 years ago
14

Please help a brotha out

Mathematics
1 answer:
Zina [86]4 years ago
7 0

Answer: a=1,b=1

Step-by-step explanation:

b

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Solve f(x) = g(x) algebraically. f ( x ) = x 2 − x − 30 g ( x ) = − 2 x + 26
kotegsom [21]

Answer:

x= 7 and -8

Step-by-step explanation:

hope this helps!

5 0
3 years ago
Which function has real zeros at x = −10 and x = −6?
ivann1987 [24]

Answer:

Option (a) is correct.

f(x)=x^2+16x+60

Step-by-step explanation:

Given :A function has real zeros at x = −10 and x = −6 .

We have to find the function that has real zeros at x = −10 and x = −6.

Consider real zeros at x = −10 and x = −6.

x = - 10 ⇒ x + 10 = 0

x = - 6 ⇒ x + 6 = 0

Multiply both zeroes, we have,

(x+10)(x+6)

Apply Distributive rule,

(a+b)(c+d)=ac+ad+bc+bd

we have,

(x+10)(x+6)=x^2+10x+6x+60

Simplify, we have,

(x+10)(x+6)=x^2+16x+60

Thus, f(x)=x^2+16x+60

Option (a) is correct.

6 0
4 years ago
Read 2 more answers
3
Dafna11 [192]

The approximate length of rail that needs to be replaced is 7.1 ft

<h3>Length of arc</h3>

Since the pool is circular, the approximate length that needs to be replaced is an arc of length, L = Ф/360° × πD where

  • Ф = central angle of rail section = 27° and
  • D = diameter of circular pool = 30 ft

<h3>Approximate length of rail</h3>

So, substituting the values of the variables into the equation, we have

L = Ф/360° × πD

L = 27°/360° × π × 30 ft

L = 3/40 × π × 30 ft

L = 3/4 × π × 3 ft

L = 9/4 × π  ft

L = 2.25 × π  ft

L = 7.07 ft

L ≅ 7.1 ft

So, the approximate length of rail that needs to be replaced is 7.1 ft

Learn more about length of an arc here:

brainly.com/question/8402454

5 0
2 years ago
Simplify −2i sqrt −12<br><br> please help!
defon
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7 0
3 years ago
A phone company is offering several different prepaid data plans.
yulyashka [42]

The data plan that has the cheapest deal is given by the ratio of the data

plan price to the GB allocated.

  • The deal that has the cheapest price per GB is <u>B. Prepaid Single Phone Plan $45 for 16 GB</u>.

The given phone data plans are;

\begin{tabular}{|l|cl|}&Prepaid Single Phone Plan&Prepaid Family Plan\\ a&\$30 for 1 GB &\$30 for 1 GB\\b& \$35 for 6 GB & \$40 for 6 GB\\ c&\$45 for 16 GB&\$50 for 16 GB\\d & \$65 for Unlimited Data & \$70 for Unlimited Data\end{array}\right]

The price per GB are;

Plan a = $30 ÷ 1 = $30 per GB

Plan b = $35 ÷ 6 = $5.8\overline 3 per GB and $40÷ 6 = $6.\overline 6 per GB for Family Plan

Plan c = 45 ÷ 16 = <u>$2.8125 per GB</u> and $3.125 per GB

Plan d = $65 for Unlimited Data = 65 ÷ ∞ ≈ 0;  $70 for Unlimited Data = 0

Therefore, the plan with the cheapest price per GB from the given option is option B.<u> Prepaid Single Phone Plan $45 for 16 GB</u>.

Learn more about ratios here:

brainly.com/question/10705874

7 0
3 years ago
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