3 years ago

Solve -17-2(×-4)-5(4×-7)

Mathematics

1 answer:

mina [271]3 years ago

8 0

26-22x is the correct answer

You might be interested in

7x + 17 100° Solve for X

tensa zangetsu [6.8K]

Answer:

7x =100-17

7x = 83

X= 11/6/7

3 0

3 years ago

The graph of f(x)=x2 is shown.

noname [10]

Answer:

x y

1 16

2 7

3 0

0 27

-1 40

-2 55

-3 72

6 0

3 years ago

PLEASE HURRY IM TIMED!!!

andriy [413]

Answer-

A. Brandon’s sound intensity level is 1/4th as compared to Ahmad’s.

Solution-

Given that, loudness measured in dB is

$L=10\log \frac{I}{I_0}$

Where,

I = Sound intensity,

I₀ = 10⁻¹² and is the least intense sound a human ear can hear

Given in the question,

I₁ = Intensity at Brandon's = 10⁻¹⁰

I₂ = Intensity at Ahmad's = 10⁻⁴

Then,

$L_1=10\log \frac{I_1}{I_0}=10\log \frac{10^{-10}}{10^{-12}}=10\log \frac{1}{10^{-2}}=10\log 10^{2}=2\times10\log 10=20$

$L_2=10\log \frac{I_2}{I_0}=10\log \frac{10^{-4}}{10^{-12}}=10\log \frac{1}{10^{-8}}=10\log 10^{8}=8\times10\log 10=80$

$\therefore \frac{L_1}{L_2} =\frac{20}{80} =\frac{1}{4}$

5 0

3 years ago

Beth sold half of her comic books and then bought nine more. She now had 28. With how many did sh begin?

Vladimir79 [104]

Answer:

Step-by-step explanation:

She began with 38 books.

28 - 9 = 19

19(2) = 38

Hope this helps!

3 0

3 years ago

Read 2 more answers

4 friends evenly divided up an n-slice pizza. One of the friends, Harris, ate 1 fewer slice than he received.

ivann1987 [24]

Answer:

4 friends evenly divided up a n -slice pizza.

So, the number of slices each friend received = n/4

Now, Harrison ate 1 fewer slice than he received. As he received n/4 slices, so 1 fewer than n/4 means......

Harrison ate n/4-1 slices of pizza.

Step-by-step explanation:

6 0

1 year ago