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4 years ago

Find negative square root of 49.

Mathematics

2 answers:

Neporo4naja [7]4 years ago

3 0

Your answer will be -7.

Ray Of Light [21]4 years ago

3 0

Answer:

-7

Step-by-step explanation:

hope this helps!

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In an average year, the American chemical industry produces more than 9.5 million metric tons of sodium carbonate. Over half of

Phoenix [80]

Answer:

2.09 × 10¹⁰ pounds

Step-by-step explanation:

The American chemical industry produces more than 9.5 million metric tons of sodium carbonate.

in this problem we have to calculate the amount in pounds of sodium carbonate are produced annually.

so we will convert the amount of 9.5 million metric tons to pounds.

Since in 1 metric ton = 2204.62 pounds

Hence, 9,500,000 metric ton = 2204.62 × 9,500,000

= 20943890000 pounds

= 2.09 × 10¹⁰ pounds

2.09 × 10¹⁰ pounds of sodium carbonate are produced annually.

5 0

4 years ago

A juggler tosses a bowling pin in the air with an initial velocity of 18 ft per second. It leaves his hand when it is five feet

Natali5045456 [20]

Complete Question

A juggler tosses a bowling pin in the air with an initial velocity of 18 ft per second. It leaves his hand when it is five feet from the ground and he catches it when it is four feet from the ground,How long is the ball in the air?

Answer:

$t\approx 0.1s$

Step-by-step explanation:

From the question we are told that

Initial velocity $V_0= 18 ft/s$

Initial Height $h_1=5feet$

Final Height $h_2=4feet$

Generally the Newtons equation for motion is mathematically given by

$V^2 = U^2 + 2as$

Where

$s=h_2-h_1\\s=4-5\\s=-1ft$

And

$a=g=>9.81\\a=32.2ft/s^2$

Therefore

$V^2 = (18)^2 + 2(-32.2)(-1)$

$V^2 = 388.4$

$V =19.70786645\\V=19.71ft/s$

Generally the equation for Time is mathematically Given as

$t=\frac{V-U}{a}$

$t=\frac{19.71-18}{32.2}$

$t=0.05310559006$

$t\approx 0.1s$

Therefore the time spent on air by the ball is

$t=0.05310559006s$

4 0

3 years ago

Which of the following represents "the difference between a number and eight is twenty-two"?

Eduardwww [97]

The answer is N-8=22

5 0

4 years ago

Read 2 more answers

Calvin bought 2 t-shirts for $50, and Bradley bought 4 t-shirts for 490. Did they pay the same rate? Explain your reasoning.

Snezhnost [94]

Answer:

490 devided by 4 is 122.5 which is the amount Bradley payed per shirt, Calvin only payed 50 dollars per shirt. No the pay is not the same and the difference is 72.5

Step-by-step explanation:

(p.s this is just what I got from this so im not 100 percent sure)

5 0

3 years ago

Read 2 more answers

Greatest common factor of 3 and 2

Andreas93 [3]

Gcd(3,2)=1 Hope this helps!!

(The answer is 1)

4 0

4 years ago

Read 2 more answers