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ElenaW [278]
3 years ago
13

Which expression has a negative value?

Mathematics
1 answer:
vovangra [49]3 years ago
3 0

Answer:

-3×3×-3×-3 is positive

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Square root to the nearest tenth √1.001 ,√1.1212 ,√2.895, √4.005 ,√6.2533
Svetlanka [38]

Answer:

1.0 ; 1.1 ; 1.7 ; 2.0 ; 2.5

Step-by-step explanation:

Given the following :

√1.001 ,√1.1212 ,√2.895, √4.005 ,√6.2533

The square root to the nearest tenth :

Using calculator :

√1.001 = 1.0004998 = 1.0

√1.1212 = 1.0588673 = 1.1

√2.895 = 1.7014699 = 1.7

√4.005 = 2.0012496 = 2.0

√6.2533 = 2.5006599 = 2.5

3 0
3 years ago
Convert the polar equation r=4sinθ to a Cartesian equation. Answer choices: x^2 + y^2 = 4y x^2 + y^2 = 4x
natali 33 [55]
Start by multiplying both sides by r:

r = 4 \sin \theta
r^2 = 4r \sin \theta

Since r^2 = x^2 + y^2 and y = r \sin \theta, we have that

\bf x^2 + y^2 = 4y
7 0
3 years ago
Y = 1/5x+3 explain plz
IceJOKER [234]

Answer:

alright all you need to do is Use the slope-intercept form to find the slope and y-intercept

So the Answer to the question is

Slope: 1/5

Y-Intercept: 3 Hope this helps :)

Step-by-step explanation:


8 0
4 years ago
A set of elementary school student heights are normally distributed with a mean of 105105105 centimeters and a standard deviatio
steposvetlana [31]

Answer:

The proportion of student heights that are between 94.5 and 115.5 is 86.64%

Step-by-step explanation:

We have a mean \mu = 105 and a standard deviation \sigma = 7. For a value x we compute the z-score as (x-\mu)/\sigma, so, for x = 94.5 the z-score is (94.5-105)/7 = -1.5, and for x = 115.5 the z-score is (115.5-105)/7 = 1.5. We are looking for P(-1.5 < z < 1.5) = P(z < 1.5) - P(z < -1.5) = 0.9332 - 0.0668 = 0.8664. Therefore, the proportion of student heights that are between 94.5 and 115.5 is 86.64%

4 0
4 years ago
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How many miles of land area does a tower with a signal of 15 miles in all directions cover
Sliva [168]
The area of a circle with a radius of 15 is about 707 or exactly 706.86
4 0
3 years ago
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