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Andrews [41]
3 years ago
12

Can Yall Help me with this please​

Mathematics
2 answers:
mina [271]3 years ago
8 0

Answer:

with what?? is there supposed to be a pic or sum ??

Step-by-step explanation:

finlep [7]3 years ago
8 0
Can you add a image or comment what you need help with? :)
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Tammy deposited $520 in the bank account that earns simple interest every year after 5 years she had earned $156 and interest if
aleksley [76]

Answer:

6%.

Step-by-step explanation:

We have been given that Tammy deposited $520 in the bank account that earns simple interest every year after 5 years she had earned $156.

To find the interest rate we will use simple interest formula.

I=P*r*T

I= Interest.

P= Principal amount.

r=Annual interest rate (in decimal form).

T= Time in years.

We have been given that I=156, T=5, P=520

Upon substituting our values in above formula we will get,

156=520*r*5

156=2600r

r=\frac{156}{2600}

r=0.06

Let us multiply 0.06 by 100 to convert annual interest rate in percentage.

0.06*100=6 \text{ percent}

Therefore, the annual interest rate was 6%.

6 0
3 years ago
In a study investigating a link between walking and improved​ health, researchers reported that adults walked an average of 873
Rainbow [258]

Answer:

H_0:\mu =873\\\\H_a: \mu

Step-by-step explanation:

Given : In a study investigating a link between walking and improved​ health, researchers reported that adults walked an average of 873 minutes in the past month for the purpose of health or recreation.

Claim : The true average number of minutes in the past month that adults walked for the purpose of health or recreation is lower than 873 minutes.

i.e. \mu

We know that the null hypothesis contains equal sign , then the set of hypothesis for the given situation will be :-

H_0:\mu =873\\\\H_a: \mu

4 0
3 years ago
( 3 x 2 ) ^ 4 x 3 ^ -3 / 2 ^ 3 x 3 =<br><br> Simplify the exponential expression
Korvikt [17]

Answer:

2

Step-by-step explanation:

\frac{(3*2)^4*3^{-3}}{2^3*3}

we start simplifying by removing the parenthesis

Multiply the exponents inside the the parenthesis

3^4  * 2^4

\frac{3^4*2^4*3^{-3}}{2^3*3}

Now we apply exponential property

a^m * a^n = a^ (m+n)

3^4 * 3^-3 = 3^ (4-3) = 3^1

3 or 3^1  are same

\frac{3^1*2^4}{2^3*3^1}

3^1 at the top and bottom so we cancel it out

\frac{2^4}{2^3}

we apply log property . a^m / a^n = a^m-n

Now subtract the exponents

2^(4-3) = 2^1 = 2



4 0
3 years ago
Are (1,1.5) and (12,4) solutions to the equation y=1/4x+5/4
Amiraneli [1.4K]

Answer:

The first set is a solution, the second is not.

Step-by-step explanation:

Testing by filling in the numbers into the equation:

(1, 1.5): x=1, y=1.5

⇒ 1.5 =? \frac{1}{4} · 1 + \frac{5}{4}

⇒ 1.5 =? \frac{1}{4} + \frac{5}{4}

⇒ 1.5 =? \frac{6}{4}

⇒ 1.5 =? 1.5  ⇒ Correct: is indeed solution to the equation

(12, 4): x=12, y=4

⇒ 4 =? \frac{1}{4} · 12 + \frac{5}{4}

⇒ 4 =? \frac{12}{4}  + \frac{5}{4}

⇒ 4 =? \frac{17}{4} ⇒ Incorrect: this is not a solution for the equation

5 0
2 years ago
The chief engineer is in charge of deciding the mountainous road-network that will be kept open (cleared of debris and maintaine
alexgriva [62]

Answer:

I dont know the answer to it

6 0
2 years ago
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