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3 years ago

6

A rectangle is inscribed with its base on the x axis and its upper vertices on the parabola y=cos x. What is the maximum area th

is rectangle can have? What is the domain of this rectangle?

1 answer:

tresset_1 [31]3 years ago

7 0

Answer:

-3-3x=12

-3x=15 add 3 to both sides

x=-5 divide by -3 on both sides

x is equal to -5

if it helps plz mark brainliest

Step-by-step explanation:

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-18=2+5x solve for x

Korvikt [17]

Answer:

x=-4

Step-by-step explanation:

-18=2+5x

Subtract 2 from both sides

-20=5x

-4=x

3 0

3 years ago

Read 2 more answers

One pound of red grapes cost $2.42 Ella buys worth 0.5 pound how much does she spend on red grapes

Bess [88]

Answer:

1.21

Step-by-step explanation:

The cost of the grapes is the price per pound times the number of pounds

cost = 2.42 * .5

cost = 1.21

7 0

3 years ago

What is the answer to 4(x-2+y) for an equivalent expression?

madreJ [45]

Answer:

4x+4y-8

hope this helps

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3 years ago

Find the area. The figure is not drawn to scale

poizon [28]

Answer:

96 square inches.

Step-by-step explanation:

From given picture we see that

BC=8 in

AD=10 in

Given that

AD=AB

Then AB=10 in

Apply Pythagorean theorem in triangle ABC to find AC

$(hypotenuse)^2=(base)^2+(perpendicular)^2$

$(AB)^2=(BC)^2+(AC)^2$

$(10)^2=(8)^2+(AC)^2$

$100=64+(AC)^2$

$100-64=(AC)^2$

$36=(AC)^2$

take square root

$6=AC$

Then area of triangle ABC $=\frac{1}{2}\left(base\right)\left(altitude\right)$

$=\frac{1}{2}\left(8\right)\left(6\right)=24$

There are total 4 congruent triangles.

Then total area of the given figure = 4(24)=96 square inches.

7 0

3 years ago

Rosa gets a 233 as a score out of 285. What is the grade, A, B, C, or F?

riadik2000 [5.3K]

Answer:

B

Step-by-step explanation:

233/285*100

0.81754*100

81.754%

3 0

3 years ago