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4 years ago

Can someone answer this for me?

Mathematics

2 answers:

Sophie [7]4 years ago

7 0

Answer:

D 26

Step-by-step explanation:

154+154=308

308-360=52

52 divided by 2

=26

Hatshy [7]4 years ago

4 0

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

I'm not sure if my way of doing it is the way your teacher wants it solved but I would do...

$150+150+x=360$

so now we just have to solve the equation...

$308+x=360\\x=52$

ok and now before you judge me that still isn't the answer we still have to divide the 52 by 2 because 52 is the sum of both the smaller angles, so you'll get...26°

choice D

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Plz help me to answer

Anton [14]

Answer:

H=2 r=1

Step-by-step explanation:

P= 2h+4r + πr = π+8

h= π+8- πr -4r/2

(pls give brainliest if helps!)

6 0

2 years ago

Eric bought a laptop for 664 it was marked 50 off because it was an opened product he also got a 15% discount which was taken of

Artyom0805 [142]

Answer:

The original price of the laptop is 840

Step-by-step explanation:

Here, we want to calculate the original price of a laptop, given the amount that was paid off and the discount percentage enjoyed.

Firstly, let’s add back the 50 taken off. That makes a total of 50 + 664 = 714

Now, we remember he was also given 15% off. Let the price paid be x;

The 15% of x is equal the difference between x and the 714

Thus;

15/100 * x = x - 714

15x/100 = (x-714)

15x = 100(x-714)

15x = 100x -71400

100x-15x = 71400

85x = 71400

x = 71400/85

x = 840

6 0

3 years ago

Which sketch shows the inverse of y=a x where a is greater than 1?

Dahasolnce [82]

Answer: The answer would be a line that is not as steep and a reflection in the line y = x.

If the a value in the equation is greater than 1, we will have a line that is steeper than the line y = x.

Now, we we take the inverse of the line, it will have a slope that is lower than y = x.

The graphs will be reflected in the line y = x.

Try graphing y = 3x and 3y = x.

6 0

3 years ago

When working with scientific notation, what does a negative exponent let you know about the size of the number?

Delicious77 [7]

well, you saw it on the previous exercise, 8.25 x 10⁻⁶, it <u>looks</u> like 8.25 is some value between 1 and 10, but is not really, the 10⁻⁶ is disguising that is really much smaller than that, in fact much smaller than even 1.

4 0

3 years ago

Many people consider their smart phone to be essential! Communication, news, Internet, entertainment, photos, and just keeping c

g100num [7]

Answer:

a) 0.4567

b) 6 hours

Step-by-step explanation:

We are given the following information the question:

The battery life follows a normal distribution with

$\mu = 9.75\\\sigma = 2.3$

Formula:

$z = \displaystyle\frac{x-\mu}{\sigma}$

a) We have to find probability such that battery life exceeds 10 hours, that is,

P(X>10)

$P(z > \displaystyle\frac{10 - 9.75}{2.3}) = P(z>0.1086)\\\\= 1 - P(z \leq 0.1086)\\= 1- 0.5433\\=0.4567$

b) We have to find battery life such that

$P(X \leq x) = 0.05\\\\P(z \leq \displaystyle\frac{x-9.75}{2.3}) = 0.05\\\\\displaystyle\frac{x-9.75}{2.3} = -1.64 \\\\x = (-1.64)(2.3) + 9.75\\x = 5.978$

Here, we calculated the value of z from the normal distribution table.

So, after approximately 6 hours one should plan to recharge the phone.

7 0

3 years ago