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3 years ago

A giraffe can run about 14 meters per second. Find it's speed in miles per hour

1 answer:

4 0

(14 meter/sec) x (1 mile/1609.344 meter) x (3,600 sec/hour) =

(14 x 3600) / (1609.344) = <em>31.32 mile/hour </em>(rounded)

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One gallon of gasoline costs $2.75.

Jobisdone [24]

Answer:

$1,430

Step-by-step explanation:

$2.75 x 10 gallons= $27.50 a week

There are about 52 weeks in a year.

$27.50 x 52 weeks = $1,430 a year

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2 years ago

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A certain circle can be represented by the following equation. x^2+y^2+18x+14y+105=0 What is the center of the circle? What is t

Gre4nikov [31]

Answer:

See below.

Step-by-step explanation:

Recall the equation for a circle:

$(x-h)^2+(y-k)^2=r^2$ , where (h,k) is the center and r is the radius.

We need to turn the given equation into the above format. We do this by completing the square.

First, group them:

$(x^2+18x)+(y^2+14y)=-105$

For the first section, complete the square for $x^2+18x$ :

$x^2+18x+81-81$

$(x+9)^2-81$

Do the same for the second:

$y^2+14y$

$y^2+14y+49-49$

$(y+7)^2-49$

All together:

$((x+9)^2-81)+((y+7)^2-49)=-105$

$(x+9)^2+(y+7)^2-130=-105$

$(x+9)^2+(y+7)^2=25$

The center is (-9,-7).

The radius is $\sqrt{25}=5$

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3 years ago

expeople1 [14]

Answer:

i dont understand you question

Explanation:

mind explaining it to me better so i can help

6 0

3 years ago

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What is the probability of picking a vowel from the word invite?

PIT_PIT [208]

6 total letters, 3 vowels. 3/6, or 1/2.

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3 years ago

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The school marching band has a budget of up to $750 to cover 15 new uniforms and

PolarNik [594]

a. The inequality 15x+300≤750 represents the situation.

b. It means that the band can spend at most $30 on each uniform without exceeding the budget.

Step-by-step explanation:

Given,

Budget = $750

Competition fee = $300

Uniforms to make = 15

Let,

x be the amount for each uniform.

a. Write an inequality to represent this situation.

Uniforms to make * Cost per uniform + Competition ≤ Budget

15x+300 ≤ 750

The inequality 15x+300≤750 represents the situation.

b. Solve the inequality and describe what it means in the situation.

$15x+300\leq 750\\15x+300-300\leq 750-300\\15x\leq 450$

Dividing both sides by 15

$\frac{15x}{15}\leq \frac{450}{15}\\x\leq 30$

It means that the band can spend at most $30 on each uniform without exceeding the budget.

Keywords: inequality, division

Learn more about inequality at:

#LearnwithBrainly

3 0

3 years ago