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2 years ago

What are the values of a and b?

Mathematics

1 answer:

liberstina [14]2 years ago

6 0

B=10 and a=8 because if we look at that shape we can see that is two right angles on the both sides of that tape and it's suggesting that the shape is equally to there another shape of that right angle

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A contractor bought 7.6 ft squared of sheet metal. She has used 4.9 ft squared so far and has $43.20 worth of sheet metal remai

Karo-lina-s [1.5K]

Answer:

$16 per square foot

Step-by-step explanation:

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3 years ago

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The number 12,089 is?

Ratling [72]

12,089 is less than 12,098
The first choice is the correct one.

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3 years ago

Solve the equations and match them with their solutions.

Artyom0805 [142]

1 is x=13.5

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3 years ago

To the nearest degree, find the measure of angle A.

evablogger [386]

Cosine(angle) = adjacent leg/ hypotenuse

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3 years ago

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Your school wants to take out an ad in the paper congratulating the basketball team on a successful season, as shown to the rig

iogann1982 [59]

Answer:

$x_1 =-14.43 in, x_2 = 2.426in$

Since the measurement can't be negative the correct answer for this case would be $x =2.426 in$

Step-by-step explanation:

Let's assume that the figure attached illustrate the situation.

For this case the we know that the original area given by:

$A_i = 7 in *5 in = 35in^2$

And we know that the initial area is a half of the entire area in red $A_i = \frac{A_f}{2}$ , so then:

$A_f = 2 A_ i =2*35 = 70$

And we know that the area for a rectangular pieces is the length multiplied by the width so we have this:

$70 = (x+7) (x+5)$

We multiply both terms using algebra and the distributive property and we got:

$70 =x^2 +12 x +5$

And we can rewrite the expression like this:

$x^2 +12 x -35 = 0$

And we can solve this using the quadratic formula given by:

$x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where $a = 1, b =12 and c=-35$ if we replace we got:

$x = \frac{-12 \pm \sqrt{(12)^2 -4(1)(-35)}}{2*1}$

And the two possible solutions are then:

$x_1 =-14.43 in, x_2 = 2.426in$

Since the measurement can't be negative the correct answer for this case would be $x =2.426 in$

3 0

3 years ago