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3 years ago

What is the solution set of the following quadratic equation?

Mathematics

1 answer:

Brut [27]3 years ago

4 0

The answer is AAAAAAAAAAAAAAAA

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Help with this one!!!<br><br><br> Show steps please:)

valkas [14]

230.95 x 1.40
= 323.33

you multiply it by 1.40 because:

1.40 is because the 1 is there as it’s marking the price up and .40 is the 40%

8 0

3 years ago

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A bucket has a leak that started 6 hours ago. At time 0, when the bucket just emptied, a tap was turned on for 3 hours. The amou

just olya [345]

hmmmm this is hard im not sure but i do know this is from savas realize reader

7 0

4 years ago

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The end of a house has the shape of a square surmounted by an equilateral triangle. If the length of the base is measured to be

sergij07 [2.7K]

Answer:

The area of the end is 1755.44 ft²

Therefore, the maximum error in calculating area of the end is 8.3592

Step-by-step explanation:

Consider the provided information.

The length of the base is measured to be 35 feet, with a maximum error in measurement of 1 inch,

$1\ inch = \frac{1}{12}\ feet$

The area of shape = Area of square + Area of equilateral triangle

$A=x^2+\frac{\sqrt{3}}{4}x^2$

Substitute x=35 in above.

$A=(35)^2+\frac{\sqrt{3}}{2}\times (35)^2=1755.44$

Hence, the area of the end is 1755.44 ft²

Differentiate $A=x^2(1+\frac{\sqrt{3}}{4})$ with respect to x as shown:

$dA=2x\ dx(1+\frac{\sqrt{3}}{4})$

Substitute dx =1/12 and x=35

$dA=2(35)\ \frac{1}{12}(1+\frac{\sqrt{3}}{4})=8.3592$

Therefore, the maximum error in calculating area of the end is 8.3592

6 0

3 years ago

Two angles in a triangle have measures of 18 and 77º.<br> What is the measure of the third angle

kow [346]

Answer:

85 ° is the answer to the question

7 0

3 years ago

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A credit card had an APR of 15.98% all of last year, and compounded interest daily. What was the credit card's effective interes

zimovet [89]

Answer:

Option(B) is the correct answer to the given question.

Step by Step Explanation

We know that

$A\ =\ P \ *(\ 1+\ \frac{r}{n} \ ) ^{nt}$

Here A=amount

r=15.98%=0.1598

n=365

t=1

Putting these values into the equation

$A\ =\ P \ *(\ 1+\ \frac{0.1598}{365} \ ) ^{365}$

$A\ =\ P \ *(\ 1+\ 0.000437) ^\ { 365}$

$A\ =\ P \ *(\ 1.000437 ) ^{365}$

$A\ =1.17288 P$

Now we find the interest

I= $1.17288P\ -P\\=\ 0.17288P\\\ ~ 0.1720P$

Therefore effective interest rate of the last year can be determined by

$\frac{0.1720P}{P}$

=0.1720 *100

=17.20%

8 0

3 years ago

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