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3 years ago

Using KCC what would be the answer to -45.2 + -58.4?

Mathematics

1 answer:

IRINA_888 [86]3 years ago

5 0

Answer:

-103.6.

Step-by-step explanation:

-45.2 + -58.4

= -45.2 - 58.4

= -103.6.

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What’s the correct answer

s344n2d4d5 [400]

Substituting m for 9

h(9) = 9^2 - 3*9

h(9) = 81 -27

h(9) = 54

Third option!

4 0

4 years ago

Read 2 more answers

Simplify (+8)-(-4)+(-5)

Mumz [18]

Answer:

Step-by-step explanation:

(+8)-(-4)+(-5)

8+4-5

12-5

4 0

3 years ago

Read 2 more answers

Joe is hiking a trail that is 30 miles long. after several days, he is two times as far from the beginning of the trail as he is

lora16 [44]

In order to answer this question let's suppose,
Joe is x miles from the beginning and y miles from the end. These assumptions are necessary to answer further:

Now,
x=2y
x+y=30
plugging in x=2y in the above equation
2y+y=30
3y=30
y=10

Hence, according to our calculations, Joe has to hike 10 miles further

5 0

4 years ago

The heights of women aged 20 to 29 follow approximately the N(64, 2.82) distribution. Men the same age have heights distributed

ivann1987 [24]

Answer:96.97

Step-by-step explanation:

Given

mean height of women $\mu _w=64$

Standard deviation of height $\sigma _w=2.82$

mean height of men $\mu _=69.3$

Standard deviation of height $\sigma _m=2.71$

P $\left ( X$

P $\left ( \frac{x-\mu _w}{\sigma _w}\right )$

P $\left ( Z$

i.e. 0.9697=96.97 %

4 0

3 years ago

Is line 1 (1,5) (3,-2) and like 2 (-3,2) (4,0) perpendicular of parallel?

Lera25 [3.4K]

Slope Formula: $\frac{y_2-y_1}{x_2-x_1}$

So remember that perpendicular lines have slopes that are negative reciprocals to each other and parallel lines have the same slope. To find out if they are either parallel or perpendicular, plug the pair of points into the slope formula to find their slopes:

$\textsf{Line 1}\\\\\frac{5-(-2)}{1-3}=-\frac{7}{2}\\\\\textsf{Line 2}\\\\\frac{0-2}{4-(-3)}=-\frac{2}{7}$

Since these slopes aren't the same nor are they negative reciprocals to each other, the lines are neither parallel nor perpendicular.

7 0

4 years ago