MATHEMATICS HIGH SCHOOL

What is the value of the expression? 19.2+(–7+3.8)a. 16
b. 24
c. 29
d. 30

Answers

Answer 1
Answer: 19.2+(-7+3.8)=19.2+(3.8-7)=19.2+(-3.2)\n\n=19.2-3.2=\huge\boxed{16}\leftarrow\boxed{a}
Answer 2
Answer: The first thing I would do to solve this is do the () so -7+3.8=-3.2 +19.2=16 So your answer would be A. I hope this helps. :)

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Find the value of x to the nearest tenth.
х
34°
48

Answers

Answer:

x ≈ 39.8

Step-by-step explanation:

cos∅ = adjacent / hypotenuse

Since we are given a right triangle, we can use trigonometry to help us solve for missing values:

cos34° = x/48

x = 48cos34°

x = 39.7938

x ≈ 39.8
X= 39.79
(39.8 rounded)
Cos= adj/hyp

Find any real solutions for the following equations.

x3 - 1728 = 0

Answers

576 times 3 subtract 1728
12 * 12 * 12 is 1728

The average number of customers that visited a particular store during the past year is 160 per day and a standard deviation of 25 customers per day. A random sample of 64 days is chosen from this population. The standard deviation of the sample mean equals ...

Answers

the standard of the Sample means 256

Which best describes this quadrilateral? A.
All sides are different lengths.

B.
All angles are right angles.

C.
Only one pair of sides is parallel.

D.
Opposite sides are parallel.

Answers

Hello,

All should be exact (without picture):
a quadrilateral is only a polygon with 4 sides.

In right triangle LMN, L and M are complementary angles and sin(L) is 19/20. What is cos(M)?A.19/20
B.1/20
C.(square root of 39)/19
D.(square root of 39)/20

Answers

I believe the correct answer from the choices listed above is option A. In right triangle LMN, L and M are complementary angles and sin(L) is 19/20. Therefore, cosine of M would be 19/20 as well. It would be helpful if you draw a figure of the problem. Hope this answers the question.

Answer:

19/20

Step-by-step explanation:

:)

-(2m-7)-(3+4(m+4)) Solve PLZZZZ HURRYY 20 POINTS

Answers

Answer:

-6m-12

Step-by-step explanation:

-(2m-7)-(3+4(m+4)) =

-2m+7-(3+4m+16)=

-2m+7-(19+4m)

-2m+7-19-4m

-6m-12

OR:

-m-2 ( if you divide by 6 as a common factor)
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