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2 years ago

The function f(x) = -(x + 5)(x + 1) is shown.

Mathematics

1 answer:

12345 [234]2 years ago

5 0

Answer:

Step-by-step explanation:

f(x)=-(x+5)(x+1)=-(x²+6x+5)=-(x²+6x+9-9+5)

=-(x+3)^2+4

Range: all numbers ≤4

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Heres a set of data 2.4, 1.6, 3.2, 0.3, 1.5 each peice of data is increases by 10, what is the mean? each new peice of data is d

Leviafan [203]

Step-by-step explanation:

Mean is the ratio of the sum of the sample data to the total sample size.

1) Given the set of data 2.4, 1.6, 3.2, 0.3, 1.5, if each piece of data is increases by 10, the new data's will be;

(10+2.4), (10+1.6), (10+3.2), (10+0.3), (10+1.5)

sum of the new data's = 59

Sample size = 5

Mean = 59/5

Mean = 11.8

Hence if the price of data is increases by 10, its new mean will be 11.8

2) If each new piece of data is doubles, the new set of data will be;

2(2.4), 2(1.6), 2(3.2), 2(0.3), 2(1.5)

= 4.8, 3.2, 6.4, 0.6, 3.0

Sum of new data = 4.8+3.2+6.4+0.6+3.0

Sum of new data = 18

sample size = 5

Mean = 18/5

Mean = 3.6

Hence the new mean if the data were doubles is 3.6

4 0

2 years ago

Three fourths of x increased by 5 is - 7

Finger [1]

Answer:

$x=\frac{8}{3}$

Step-by-step explanation:

$\frac{3}{4} x+5=7$

Subtract 5 from both sides.

$\frac{3}{4}x+5-5=7-5$

Simplify.

$\frac{3}{4}x=2$

Multiply both sides by 4.

$4*\frac{3}{4} x=2*4$

Simplify.

$3x=8$

Divide both sides by 3.

$\frac{3x}{3} =\frac{8}{3}$

Simplify.

$x=\frac{8}{3}$

7 0

2 years ago

all of it. I'm confused on it. I tried a couple of times but still did not get close to even getting it. I don't understand it a

Tema [17]

$34 total spent
4 tickets x’s 6 = 24
34-24=10
Now, divide 10 by 4=2.50
Snacks bags cost $2.50

6 0

3 years ago

Find the zeros of fhe function. Enter the solutions from least to greatest. f(x)=(x-2)^2-9

dangina [55]

Answer:

5, -1

Step-by-step explanation:

set the given equation equal to 0.

add 9 to both sides

take the square root of both sides and remove the exponent on left side.

x-2 = +3

x-2= -3

solve for x (for each equation)

x= 5, x= -1

3 0

3 years ago

53 x + 4 < 7<br> how is this graphed on a number line ?

ValentinkaMS [17]

Answer:

Solve for x first.

54x + 4 < 7

54x < 7 - 4

54x < 3

x < 3 / 54

x < 1/18

So the value is less than 1/18.

To draw on the number line, draw from point 1/18 to the back with an arrow to represent that x is any number less than 1/18.

4 0

3 years ago