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2 years ago

Find the image of (-1, 2) reflected across the y-axis.

Mathematics

1 answer:

artcher [175]2 years ago

4 0

Answer: (1,2)

Step-by-step explanation:

Reflecting across the y-axis means $(x,y) \longrightarrow (-x,y)$

So, $(-1,2) \longrightarrow \boxed{(1,2)}$

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Angela decides to recycle a large oatmeal container by using it to hold a friends birthday gift. Then she wraps the container in

Deffense [45]

Answer:

D. 135.37 in²

Step-by-step explanation:

We have that the gift paper consists of two circles and a square.

Thus, we will need to find the area of the circles and the square.

Now, as the diameter of the circle = 4 inches

So, the radius of the circle = $\frac{4}{2}$ = 2 inches

Since, the area of a circle = $\pi r^{2}$

This implies that area of the two circles = $2\times \pi r^{2}$

i.e. Area of the circles = $2\times \pi 2^{2}$

i.e. Area of the circles = $8\pi$

i.e. Area of the two circles = 25.133 in²

Further, one side of the square = 10.5 inches

Thus, the area of the square = $side^{2}$

i.e. Area of the square = $10.5^{2}$

i.e. Area of the square = 110.25 in²

So, the overall area of the gift paper = 25.133 + 110.25 = 135.37 in².

Hence, the amount of paper used by Angela is 135.37 in².

7 0

3 years ago

Which expression can be added to the right side of the equal sign to form an equation?

Harlamova29_29 [7]

we will use

this rule in order of operation

P: Parenthesis

E: Exponent

M: Multiplication

D: Division

A: Addition

S: Subtraction

we are given

30+2*10....

we can simplify it

$30+2*10=30+20$

$=50$

now, we will check option and verify whether it is equal to 50

option-a:

3(2+3)

=3*5

=15

so, this is FALSE

option-b:

7(2+1)

=7*3

=21

so, this is FALSE

option-c:

6(3+7)

=6*10

=60

so, this is FALSE

option-d:

5(4+1)

=5*5

=25

so, this is FALSE

3 0

4 years ago

If f(x)=2x and g(x)=x+5, then g(f(x))= <br><br> A) 2x+5<br> B) 2x+10

Natali [406]

Answer:

A. 2x+5

Step-by-step explanation:

You can solve these by substituting f(x) as the input (or x value) in g(f(x)). This would be putting the 2x in as the "x" in x+5. So 2x+5.

8 0

3 years ago

Please please help help please please help ASAP

ioda

(-3,4) is going to be ur answer ;)

4 0

3 years ago

What is the range of the function y= 2e - 1?

Licemer1 [7]

<h3> Answer: All real numbers greater than -1. Step-by-step explanation: We have to find the range of: y= 2e^x-1. We know that e^x lies in (0,∞). Hence, 2e^x lies in (0,∞).</h3>

8 0

3 years ago