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Tasya [4]
3 years ago
11

Simplify the following expression

Mathematics
2 answers:
Fiesta28 [93]3 years ago
4 0

Answer:

the answer would be 81

Step-by-step explanation:

sergij07 [2.7K]3 years ago
3 0

    It is simplified to -1/15

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19h-7=23+14h <br> solve the equation
amid [387]

Answer:

h=6

Step-by-step explanation:

19h-7=23+14h

-7-23=14h-19h

-30=-5h

h=6

5 0
3 years ago
Mithali buys a t.v at 12,000 and sells it at a profit of 20% how much money she gets? reduce the fraction of cp and sp to the lo
Dominik [7]

Answer:

14,400

Step-by-step explanation:

Hope this helpfull..but if it's not,im so sorry

7 0
3 years ago
A study of king penguins looked for a relationship between how deep the penguins dive to seek food and how long they stay underw
Serggg [28]

Answer:

b = 0.0138

Step-by-step explanation:

Given

Regression Equation:

DD=2.69+0.0138D

Required

Determine the slope of the regression line

The equation of regression is of the form

Y =  a + bX

Where b represents the slope;

Compare Y =  a + bX to the given equation

DD=2.69+0.0138D

We have that:

Y = DD

a = 2.69

b = 0.0138

X = D

Hence; the slope is:

b = 0.0138

7 0
3 years ago
Tom works at an aquarium shop cleaning reef tanks. His job is to drain the tank. How much water is initally in
insens350 [35]
Answer is 175

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5 0
2 years ago
There are as many girls as there are boys in a class. 8 girls went for a dance competition. now there are twice as many boys as
Rashid [163]
Let the number of girls be x and the number of boys be y

The number of boys is the same as the number of girls.
x = y 
The number of boys is twice the number of girls when 8 girls left.
2(x - 8) = y


x = y ---------------- (1)
2(x - 8) = y -------- (2)

Sub (1) into (2)

2(y - 8) = y
2y - 16 = y
2y - y = 16
y = 16
There were 16 boys and 16 girls initially.

16 + 16 = 32 
There were a total of 32 students in the class initially. 



4 0
3 years ago
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