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3 years ago

Indicate true or false as to whether the following equation is quadratic. (x+3)(x+4)=5.

Mathematics

2 answers:

Bumek [7]3 years ago

8 0

Answer:

$True$

Step-by-step explanation:

$(x + 3)(x + 4) = 5 \\ \Leftrightarrow {x}^{2} + 7x + 12 = 5\Leftrightarrow {x}^{2} + 7x + 7 = 0 \\ This \: is \: a \: quadratic \: equation.$

Snowcat [4.5K]3 years ago

5 0

Answer:

The answer to your question is True. Hope it helps and have a good day!

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The Mayors of two small towns that adjoin a large community have engaged in an argument on which of their cities is safer, with

Lelu [443]

Answer:

1. City A: 150 violent crimes per 100,000 residents.

City B: 161 violent crimes per 100,000 residents.

2. City A

Step-by-step explanation:

City A:

Population = 123,000

Violent crimes = 185

Violent crimes per 100,000 people:

$V_{100k} = \frac{185*100,000}{123,000} \\V_{100k} = 150$

City B:

Population = 84,000

Violent crimes = 135

Violent crimes per 100,000 people:

$V_{100k} = \frac{135*100,000}{84,000} \\V_{100k} = 161$

1. City A: 150 violent crimes per 100,000 residents.

City B: 161 violent crimes per 100,000 residents.

2. Even though it has a bigger number of crimes, City A has the lowest crime rate since its population is larger.

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3 years ago

One angle of an isosceles trapezoid has measure 57. What are the measures of the other angles?

Kobotan [32]

$\alpha =57^o\\ \\ The \ interior \ angle \ at \ the \ shortest \ base \ is \ equal \ to :\\ \\ \beta = 180^o - 57^o = 123^o$

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3 years ago

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Solve the right triangle.<br> Round your answers to the nearest tenth.

Nadya [2.5K]

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Answer: c=38.89

b=29.79

<A=40

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

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3 years ago

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Ben earns an annual income of $12,800 a year. The income tax he has to pay is 15%. What is the amount of income tax in dollars a

Alex17521 [72]

Find 15% of 12,800,

$\frac{15}{100}$ × $\frac{12,800}{1}$

= 1,920

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3 years ago

I need help ill give brainiest

Gnoma [55]

Answer:

9 ft

Step-by-step explanation:

its volume is equal to the area by height;

(2.5 x 3)h = 67.5

h = 9ft

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3 years ago

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