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klasskru [66]
3 years ago
8

The expression 9+21 factored using

Mathematics
2 answers:
puteri [66]3 years ago
7 0
The answer should be 30.
Hatshy [7]3 years ago
3 0
Firstly we have to find rhe highest common factor which is in this case 3 so firstly we should multiply the brackets by the HCF 3 then add the two numbers divided by 3 so 3(3+7)
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The population of a city increase exponentially at a rate of x% every 5 years
Lerok [7]

Answer:

1.1460277. Put in your decimal place given to you.

This is the percentage rate.

Step-by-step explanation:

f(x)=0=60100

55=120150

60100=a*b^0

120150/60100=60100/60100*b^5

b^5^(1/5)=5square root(120150/60100)=1.14860277

5 0
3 years ago
A car dealership buys a car for $12,500. They sell the car for $15,750. What is the percent markup?
Elodia [21]

Answer: 26%

Step-by-step explanation:

The formula to calculate the percentage markup is given as:

= Selling price - Cost / Cost price × 100

where selling price = $15750

Cost price = $12500

Percentage markup = ($15750 - $12500) / $12500 × 100

= $3250/$12500 × 100

= 26%

4 0
3 years ago
Read 2 more answers
0÷2 answer right now 0÷2= right now ​
77julia77 [94]

0/2=0 because anything divided by zero is zero.

4 0
3 years ago
Read 2 more answers
Please help will reward a lot of points and brainlest for the best answer
yawa3891 [41]
A is not right. Half the cookie would have an angle of 180
B is not right. 4 pieces would have an angle of 288
C is correct. 360/5 is 72 degrees
D is not right. 2 pieces would have an angle of 144
E is correct 90<144 so a 90 degree angle would fit in 2 pieces
5 0
3 years ago
The product of two rational numbers is (-28/81). If one of them is (-2/3), the find the other.
KatRina [158]

Answer:

The other rational number is \dfrac{14}{27}.

Step-by-step explanation:

First rational number is \dfrac{-2}{3}

Let other rational number is \dfrac{x}{y}

The product of two rational numbers is \dfrac{-28}{81}

According to question,

\dfrac{x}{y}\times \dfrac{-2}{3}=\dfrac{-28}{81}

Multiplying both sides by (-3/2) such that,

\dfrac{x}{y}\times \dfrac{-2}{3}\times \dfrac{-3}{2}=\dfrac{-28}{81}\times \dfrac{-3}{2}\\\\\dfrac{x}{y}=\dfrac{14}{27}

So, the other rational number is \dfrac{14}{27}.

6 0
3 years ago
Read 2 more answers
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