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2 years ago

The sides of the square shown below have a length of

Mathematics

1 answer:

USPshnik [31]2 years ago

8 0

Answer:2 $\sqrt{6}$ because it is a 45 45 90

Step-by-step explanation:

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Which had the greater absolute value <br> 19 or -28

nignag [31]

Answer:

-28 has the greater absolute value.

Step-by-step explanation:

19's absolute value is 19

|19|=19

but -28's absolute value is 28

|-28|=28

and 28 is greater than 19

19<28

hope u understood and it helps

if any doubt, don't hesitate to ask in the comments

and ur welcm

8 0

2 years ago

A street light is at the top of a 25 ft pole. A 4 ft tall girl walks along a straight path away from the pole with a speed of 6

Burka [1]

Answer:

Tip of the shadow of the girl is moving with a rate of 7.14 feet per sec.

Step-by-step explanation:

Given : In the figure attached, Length of girl EC = 4 ft

Length of street light AB = 25 ft

Girl is moving away from the light with a speed = 6 ft per sec.

To Find : Rate ( $\frac{dw}{dt}$ ) of the tip (D) of the girl's shadow (BD) moving away from th

light.

Solution : Let the distance of the girl from the street light is = x feet

Length of the shadow CD is = y feet

Therefore, $\frac{dx}{dt}=6$ feet per sec. [Given]

In the figure attached, ΔAFE and ΔADE are similar.

By the property of similar triangles,

$\frac{x}{21}=\frac{x+y}{25}$

25x = 21(x + y)

25x = 21x + 21y

25x - 21x = 21y

4x = 21y

y = $\frac{4x}{21}$

Now we take the derivative on both the sides,

$\frac{dy}{dt}=\frac{4}{21}\times \frac{dx}{dt}$

= $\frac{4}{21}\times 6$

= $\frac{8}{7}$

≈ 1.14 ft per sec.

Since w = x + y

Therefore, $\frac{dw}{dt}= \frac{dx}{dt}+\frac{dy}{dt}$

$\frac{dw}{dt}=6+1.14$

= 7.14 ft per sec.

Therefore, tip of the shadow of the girl is moving with a rate of 7.14 feet per sec.

3 0

2 years ago

Simplify\:\frac{\sqrt{5}}{\sqrt{3}}

avanturin [10]

$\dfrac{\sqrt 5}{\sqrt 3} =\sqrt{\dfrac 53} \approx 1.291$

7 0

2 years ago

William put $100 in a bank account last year. Now he has more money in the account. Which expressions represent how much money W

gulaghasi [49]

You are right the answers are B and D because in both we have 100$ at the first :))
i hope this is helpful
have a nice day

5 0

2 years ago

Read 2 more answers

A watermelon that weighs 9 pounds costs $4.50.<br> What is the price per pound?

allsm [11]

Answer:

0.5 cents per pound.

4.50/9 = 0.5

Please mark me brainliest! I hope this helps!

7 0

2 years ago

Read 2 more answers