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3 years ago

Genevieve deposited $400 into her bank account. The equation A(t) = 400(1.07) can be used to calcula

Mathematics

1 answer:

UNO [17]3 years ago

4 0

Answer: 7%

Step-by-step explanation: I did the test.

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What is the value of x in the diagram below ?

Amanda [17]

Answer:

x = 9

Step-by-step explanation:

12^2 + a^2 = 54^2

a^2 = 54^2 - 12^2

a = sqrt (54^2 - 12^2) = 6 * sqrt(77)

Then calculate it for another triangle, where each side is 6 times shorter (as 12/2 = 6):

2^2 + (sqrt(77))^2 = x^2

x^2 = 81

x = 9

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4 years ago

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slavikrds [6]

Answer: 16 fl oz

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Can someone help me with this

Anon25 [30]

Answer:

1] x=4.21

2] 52.5

3] 3.82

4] 38.73

5] 32.005

6] 31.21

Step-by-step explanation:

8 0

3 years ago

Please Help, i keep getting this question wrong-<br><br> Multiple choice.<br><br> **APEX**

JulsSmile [24]

Answer:

A is the answer

vertically stretched by a factor of 2

Step-by-step explanation:

f(x) = √x and f(x) = 2√x

Since |a| = 2 > 1. The line f(x) = 2√x is vertically stretched by a factor of 2

from f(x) = √x

Answer is A

3 0

3 years ago

A rectangular pool 18 meters by 12 meters is surrounded by a walkway of width x

vesna_86 [32]

Answer:

x=3 meters

Step-by-step explanation:

step 1

Find the area of the rectangular pool

$A=LW$

we have

$L=18\ m\\W=12\ m$

substitute

$A=18(12)=216\ m^2$

step 2

Find the area of rectangular pool including the area of the walkway

Let

x ----> the width of the walkway

we have

$L=(18+2x)\ m\\W=(12+2x)\ m$

substitute

$A=(18+2x)(12+2x)$

step 3

Find the area of the walkway

To find out the area of the walkway subtract the area of the pool from the area of rectangular pool including the area of the walkway

$A=(18+2x)(12+2x)-216$

step 4

Find the value of x if the area of the walkway equal the area of the pool

$(18+2x)(12+2x)-216=216$

Solve for x

$(18+2x)(12+2x)=432\\216+36x+24x+4x^{2}=432\\4x^{2} +60x-216=0$

Solve the quadratic equation by graphing

The solution is x=3 meters

see the attached figure

8 0

3 years ago