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aalyn [17]
2 years ago
10

T divided by -4 equals nine

Mathematics
2 answers:
SpyIntel [72]2 years ago
4 0

Answer:

54

Step-by-step explanation:

natta225 [31]2 years ago
3 0
T/-4=9
1. multiply both sides by reciprocal of -1/4 *(-4)t/-4=9(-4)
2. solve *t=-36*
answer: t=-36
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What is the best estimate for the answer to 321.786 + 240.273?
zvonat [6]
Round
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about 562
3 0
3 years ago
19. Find the current in a circuit if the power is 500 W (watts) and the resistance is 25 ohms. Round off your answer to two deci
HACTEHA [7]

Answer:

A

Step-by-step explanation:

The formula that relates current, power and resistance is

I=\sqrt{\frac{P}{R}}

Where

I is the current (in amperes)

P is the power (in watts)

R is the resistance (in ohms)

We know P = 500 and R = 25, we plug them into the formula and solve for I:

I=\sqrt{\frac{P}{R}}\\I=\sqrt{\frac{500}{25}}\\I=\sqrt{20}\\ I=4.47

Correct answer is 4.47 Amperes, or choice A.

4 0
3 years ago
a red hot ar balloon is 100 feet off the ground and is rising at a rate of 8 feet per second. a green hot air balloon is 160 fee
zhenek [66]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
The area of a trapezium is 800 cm2
svlad2 [7]

Answer:

The distance between the parallel sides is 20cm.

Step-by-step explanation:

Area of a trapezoid:

A=\frac{a+b}{2}\times h

where a and b are the 2 bases, and h is the height. The value we're trying to find here is the height.

3 of the 4 variables in this equation are already given:

A = 800

a = 48

b = 32

Just plug those in and solve for h:

\rightarrow 800=\frac{48+32}{2}\times h\\\rightarrow 800=\frac{80}{2}\times h\\\rightarrow 800=40\times h\\\rightarrow 800\div40=h\\\rightarrow h=20

5 0
2 years ago
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Evaluate the expression:
pickupchik [31]
9 is the answer

Step by step
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2 years ago
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