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k0ka [10]
3 years ago
14

Round 3..............almost out of points .-.

Mathematics
2 answers:
Sidana [21]3 years ago
8 0
You can use a proportion.

2/3 inch is to 1 hour as 6 2/3 inch is to x hours.

\dfrac{\frac{2}{3}~inch}{1~hour} = \dfrac{6 \frac{2}{3}~inch}{x}

Cross multiply to get

\dfrac{2}{3} x = 6 \dfrac{2}{3}

\dfrac{2}{3} x = \dfrac{20}{3}

2x = 20

x = 10

Answer: It rained for 10 hours.
Dovator [93]3 years ago
4 0
6 2/3 ÷ 2/3
= 20/3 ÷ 2/3
= 20/3 × 3/2
= 20/2
= 10

Answer
10 hours
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I AM BEGGING, PLEASE HELP ME. CAN SOMEONE PLEASE HELP ME!
Temka [501]

Answer:

37.5

Step-by-step explanation:

180-75 = 105

180 is the sum of all the angle in a triangle

180-105 = 75

75/2 = x becuz the triangle is icoceles

=37/5

Hope this helps :) Giving me brainiest would help a lot :))

8 0
2 years ago
What is the solution to the equation 4x-6=10x-3
egoroff_w [7]

Answer:

x = -1/2

Step-by-step explanation:

4x - 6 = 10x - 3

  +6            +6

4x = 10x + 3

-10x   -10x

-6x = 3

/-6    /-6

x = -1/2

8 0
2 years ago
How do you find the value of √a⁴ ??<br> (ill give brainliest)
dsp73

Answer:

a^{2}

Step-by-step explanation:

√a^4 is the same as:

√a × √a × √a × √a

group them as 2 pairs of

(√a × √a) × (√a × √a)

which makes

a × a

which is the same as a^{2}

5 0
3 years ago
Mrs. Galicia launched a rocket into the air from the top of a building. Answer the following questions based on the graph below:
marusya05 [52]

Answer:

The first blank is 20 and the second one is 1.25

Step-by-step explanation:

i just took the quiz

3 0
3 years ago
The function h(t)=-4.92t^2+17.69t+575 is used to model an object being tossed from a tall building, where h(t) is the height in
nikklg [1K]
We have the following equation:
<span> h(t)=-4.92t^2+17.69t+575

</span> For the domain we have:
<span> </span>We match zero:
 -4.92t ^ 2 + 17.69t + 575 = 0
 We look for the roots:
 t1 = -9.16
 t2 = 12.76
 We are left with the positive root, so the domain is:
 [0, 12.76]

 For the range we have:
 We derive the function:
 h '(t) = - 9.84t + 17.69
 We equal zero and clear t:
 -9.84t + 17.69 = 0
 t = 17.69 / 9.84
 t = 1.80
 We evaluate the time in which it reaches the maximum height in the function:
 h (1.80) = - 4.92 * (1.80) ^ 2 + 17.69 * (1.80) +575
 h (1.80) = 590.90
 Therefore, the range is given by:
 [0, 590.9]

 Answer:
 the domain and range are:
 
domain: [0, 12.76] range: [0, 590.9]
5 0
3 years ago
Read 2 more answers
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