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mafiozo [28]
3 years ago
7

Brisa is 2 years older than Aja. Damaris is 1 year younger than half of Brisa's age. The sum of all their ages is 27.

Mathematics
1 answer:
kirill [66]3 years ago
7 0

brisa is 12.5 aja is 10.5 and damaris is 4

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Please help I need to pass this test so I can bring my grades up!
Marianna [84]

Answer:

8. 24

9. 10

2. 72

1. 113

5. 7.96 = <u>8</u>

11. 30.19 = <u>30.2</u>

6. 28.27 = <u>28</u>

That's all I can answer right now, maybe study a bit more and your grades will get better! Good luck!

4 0
3 years ago
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A 25-foot ladder is leaning against a house with the base of the ladder 5 feet from the house. How high up the house does the la
Lesechka [4]

Answer:

  24.5 ft

Step-by-step explanation:

The Pythagorean theorem relates the lengths of the legs of a right triangle to the length of the hypotenuse. This geometry is modeled by a right triangle with one leg being 5 ft and the hypotenuse being 25 ft. Then we have (in feet), ...

  25^2 = 5^2 + height^2

  625 -25 = height^2 . . . . . . subtract 5^2

  √600 = height ≈ 24.4949 . . . . take the square root

The ladder reaches about 24.5 ft up the house.

8 0
3 years ago
What is the y value of -2?
Naily [24]

Answer: -2

Step-by-step explanation:

f(-2) = -2

It is the value of y when x = -2.  I read "-2."

5 0
2 years ago
The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out. The resistance R is slowly increasin
hoa [83]

Answer:

\frac{dI}{dt}=-0.00016 A/s

Step-by-step explanation:

We are given that

By ohm's law

V=IR

R=389 ohm

I=0.03 A

\frac{dV}{dt}=-0.06V/s

\frac{dR}{dt}=0.07ohm/s

We have to find rate of change of current I means \frac{dI}{dt}

Differentiate the equation w.r.t t

\frac{dV}{dt}=\frac{dI}{dt}R+I\frac{dR}{dt}

Substitute the values then we get

-0.06=\frac{dI}{dt}\times 389+0.03\times 0.07

-0.06=389\frac{dI}{dt}+0.0021

-0.06-0.0021=389\frac{dI}{dt}

-0.0621=389\frac{dI}{dt}

\frac{dI}{dt}=\frac{-0.0621}{389}=-0.000160 A/s

Hence, the current I is changing at the rate=-0.00016A/s

4 0
4 years ago
Please help my hw is due tonight:(
babymother [125]

Answer:

1 Add 55 to both sides.

2x=20+52x=20+5

2 Simplify 20+520+5 to 2525.

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3 Divide both sides by 22.

x=\frac{25}{2}x=

​2

​

​25

​​  

Done

Decimal Form: 12.5

Step-by-step explanation:

thats only the first one sry

6 0
3 years ago
Read 2 more answers
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