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3 years ago

Someone please please help help me please please ASAP with my work And NO LINKS or FILES

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

8 0

Answer:

Blank 1: y

Blank 2: x

Blank 1: x

Blank 2: y

Step-by-step explanation:

The reflection of a point along y-axis means the y value stays the same and the x-value changes its sign.

Blank 1: y

Blank 2: x

The reflection of a point along x-axis means the x value stays the same and the y-value changes its sign.

Blank 1: x

Blank 2: y

Fantom [35]3 years ago

4 0

Give the other person brainliest!!

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Find the height "h" so that its area is equal to 400 square cm.

jenyasd209 [6]

Answer:

h = 20 cm

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) *h

where b1 and b2 are the two bases

We are given a =400 and b1 =27 and b2 =13

400 = 1/2 (27+13) *h

400 = 1/2 (40) *h

400 = 20h

Divide each side by 20

400/20 = 20h/20

20 =h

8 0

3 years ago

A survey reveals that the sales of smartphones is increasing considerably. The average annual sales of smartphones, in million u

EleoNora [17]

Answer:

when the survey was initially conducted the average sales of smartphones was 1.7 million units

Step-by-step explanation:

The average annual sales of smartphones is given by function

$P(n)= 1.7 (b)^n$

Exponential growth function is given by

$f(x)= ab^x$

Where a= initial value

b = growth factor , b= 1+r where 'r' is the growth rate

x is the time period

Now we compare f(x) with P(n)

the value of a= 1.7 that is the initial value.

So we can say, when the survey was initially conducted the average sales of smartphones was 1.7 million units

8 0

3 years ago

Find the area of a circle with diameter 14 yd.

g100num [7]

A=3.14r^2
14*1/2=7
7^2•3.14= 153.86

8 0

3 years ago

Find the roots of the quadratic equation x^2-8x=9 by completing the square. Show your work.

qaws [65]

$x^{2} -8x=9 \\ x^{2} -8x+(-4)^{2} = 9 + (-4)^{2} \\ x^{2} -8x+16 = 9 + 16 \\ (x-4)^{2} =25 \\ x-4= \sqrt{25} \\ x-4= \pm 5 \\ x= \pm 5+4$
x = 5 + 4 or -5 + 4
x = 9 or -1

3 0

4 years ago

Is the following relation a function? {(3, −5), (1, 2), (−1, −4), (−2, 2)}

NeTakaya

Answer:

Function.

Step-by-step explanation:

A relation is a function every x that in your domain only gets assigned to exactly one number in your range.

Basically if you have a set of points and you see that the same x is being used more than once, then it isn't a function (unless for some reason they repeated the same point).

So the x's I see in the order that your points are is 3,1,-1,-2. All of these x's are different so it is a function.

4 0

4 years ago

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