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2 years ago

Plz i need help with this. It would really help if you help me with this (._.)

Mathematics

1 answer:

Ira Lisetskai [31]2 years ago

6 0

Z is B and x is D. Hope this helps!

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2 x 10-6 times what number is equal to 6 x 10-4

Dahasolnce [82]

Answer:

times -6

Explanation... 2 x 10-6 x -6=56

6 x 10-4=56

Hope this helps

7 0

2 years ago

Thirty times the square of a non-zero number is equal to 8 times the number. What is the number?

borishaifa [10]

Need help ask me anything

6 0

3 years ago

Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 50.7 d

Svet_ta [14]

Answer: The mean of the frequency distribution is 51.7°.

The computed mean 51.7° is greater than the actual mean 50.7° .

Step-by-step explanation:

The given table :

Low Temperature (°F) Frequency Mid -value

Class interval f x fx

40-44 2 42.5 85

45-49 7 47.5 95

50-54 9 52.5 105

55-59 5 57.5 115

60-64 1 62.5 25

$\text{Now, Mean}=\dfrac{\sum fx}{\sum f}\\\\=\dfrac{85+332.5+472.5+287.5+62.5}{24}\\\\=\dfrac{1240}{24}=51.6666666667\approx51.7$

The computed mean 51.7° is greater than the actual mean 50.7° .

5 0

2 years ago

Please help 1. Find the rectangular coordinates of (7, 150°).

cupoosta [38]

Answer:

Step-by-step explanation:

$x=r cos \theta=7 cos150=7cos(180-30)=-7cos ~30=-\frac{7\sqrt{3} }{2} \\y=r~sin~\theta=7~sin ~150=7~sin~(180-30)=7~sin~30=\frac{7}{2} \\so ~coordinates ~are~(-\frac{7\sqrt{3}}{2} ,\frac{7}{2} )\\C$

8 0

2 years ago

PLEASE ANSWER FOR LOTS OF POINTS

bekas [8.4K]

Answer:

In Heather's solution to the problem, she wrote and solved an equation.

Her work is:

Step 1: 1.08(x +9.01 +0.98 +5.01) = 21.87

Solving like terms

1.08(x+15}=21.87

dividing both side by 1.08

we get

x+15=21.87/1.08

x+15=20.25

subtracting both side by 13.9198

x=20.25-15

x=5.25

According to correction

;

Option 1st

yes,it is correct.

6 0

1 year ago