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nordsb [41]
3 years ago
13

Ten times the sum of a number and 9

Mathematics
2 answers:
k0ka [10]3 years ago
6 0

Answer: 14

Step-by-step explanation:

-Dominant- [34]3 years ago
5 0

Answer:

10(x+9)

Step-by-step explanation:

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30 points and brainliest!! HELP NOW
Natasha2012 [34]

Answer:

First question

a = 1 , h = 0 , k = 6 ⇒ third answer

Second question

y = 2x² + 4 ⇒ second answer

Third question

No of the choices correct ⇒ fourth answer

Step-by-step explanation:

First question

∵ f(x) = x² + 6

- It is a quadratic function with general form ax² + bx + c

- Its vertex is (h , k), where h = -b/2a and k = f(h)

∵ a = 1 , b = 0 , c = 6

∴ h = 0/2(1) = 0

∴ f(0) = 0² + 6 = 6

∴ a = 1 , h = 0 , k = 6 ⇒ third answer

Second question

- If the function f(x) translated vertically up  

 by k units, then the new function g(x) = f(x) + k

- If the function f(x) translated vertically down  

 by k units, then the new function g(x) = f(x) – k

∵ y = 2x²

∵ y is shifted 4 units up

∴ k = 4

∴ y + 4 = 2x² + 4

∴ y = 2x² + 4 ⇒ second answer

Third question

∵ y = -2x² + 3

- It is a quadratic equation with general form ax² + bx + c

- It represented graphically by parabola

- If a is positive the parabola opens upward

- If a is negative the parabola opens downward

∵ a = -2

∴ The parabola opens downward

∴ No of the choices correct ⇒ fourth answer

4 0
3 years ago
If 15 women can finish a piece of work in 66 days, how long will 9 women take to finish the work?
Mice21 [21]

Answer:

39.6 Days. It is a proportions problem.

5 0
2 years ago
a punch recipe says to mix 4 cups pineapple juice,8 cups orange juice,and 12 cups seltzer in order to make 18 servings of punch.
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2/3 cups of pineapple juice, 4/3 cups of orange juice and 2 cups of seltzer for 3 servings.

8 0
2 years ago
15% of 72 is ______​
BigorU [14]

Answer: convert 15% to a decimal. 0.15 times 75 is 11.25

Converting Percentages to Decimals

Easiest—divide by 100: The simplest way to convert a percentage to a decimal is to divide the number (in percentage format) by 100.

Move the decimal: Another way to convert a quoted percentage to decimal format is to move the decimal two places to the left

6 0
3 years ago
How many minutes are there in 12.5 hours?
neonofarm [45]

Answer:

750 minutes

Step-by-step explanation:

7 0
3 years ago
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