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ohaa [14]
2 years ago
12

Giving brainliest !!!!!

Mathematics
1 answer:
8_murik_8 [283]2 years ago
5 0

Answer:

Angle 10=74 deg

Alternate Interior angle theorem

Step-by-step explanation:

They are Alternate Interior angles.

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-4x+3x=2 how do I solve for x?​
Snezhnost [94]

Answer: Combine like terms!

Step-by-step explanation:

-4x + 3x = 2

-1x = 2

-1x/-1 = 2/-1

x = -2

7 0
3 years ago
A person recently read that 84% of cat owners are women. How large a sample should the researcher take if she wishes to be 90% c
Lana71 [14]

Answer:

405

Step-by-step explanation:

To find sample size, use the following equation, where n = sample size, za/2 = the critical value, p = probability of success, q = probability of failure, and E = margin of error.

n=\frac{(z_{\frac{\alpha }{2} })^{2} *p*q  }{E^2}

The values that are given are p = 0.84 and E = 0.03.

You can solve for the critical value which is equal to the z-score of  (1 - confidence level)/2.  Use the calculator function of invNorm to find the z-score.  The value will given with a negative sign, but you can ignore that.

(1 - 0.9) = 0.1/2 = 0.05

invNorm(0.05, 0, 1) = 1.645

You can also solve for q which is 1 - p.  For this problem q = 1 - 0.84 = 0.16

Plug the values into the equation and solve for n.

n =\frac{(1.645)^2*0.84*0.16}{(0.03)^2}\\n= 404.0997333

Round up to the next number, giving you 405.

6 0
3 years ago
Which of these number is an integer? A. −4.0 B. 1.50 C. -5/8 D. infinity
NNADVOKAT [17]
<span>−4.0 is an integer.

hope it helps</span>
8 0
3 years ago
1
Blizzard [7]
I believe it is false.
7 0
3 years ago
Read 2 more answers
A tank full of water is leaking at a constant rate for 30 minutes. The equation
ankoles [38]

Answer:  A. There were 500 liters in the tank when the leak started, and it is  decreasing by 9 liters per minute.

Step-by-step explanation:

This equation is in the form; y =mx + c.

<em>c</em> in this equation is the value of y when x is at 0.

<em>c</em> in the above formula is 500 which means that the number of litres (y) at zero minutes(x) is 500 litres.

<em>m</em> is the rate of change as a result of a change in x.

<em>m</em> in this equation is -9 which means that the water is reducing by 9 litres every minute (x).

3 0
2 years ago
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