2 years ago

7x²+4x-1 evaluate the expression

Mathematics

1 answer:

marissa [1.9K]2 years ago

4 0

Answer:

here

Step-by-step explanation:

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Answer if you do know

Alex777 [14]

Answer:

Find the hypotenuse:

3^3 + 10^2 = 109

Square root of 109 is around 10.4

8 0

3 years ago

Read 2 more answers

7. What polynomial remains after the greatest common factor is factored out of the

lara31 [8.8K]

Answer:the answer is A

Step-by-step explanation:

7 0

3 years ago

4. (07.05 MC)

Papessa [141]

Answer:

xnone=

Step-by-step explanation:

5X+3x-15=6x+2x-15

8x-15=8x+15

-15=15

4 0

2 years ago

Point A(3,2) is on a circle whose center is C(−2,3). What is the radius of the circle?

goldfiish [28.3K]

Answer:

The radius of the circle is √26.

Step-by-step explanation:

Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.

To find the distance between two points, the following equation should be used:

$x^{2} =(x_{A}- x_{C}) ^{2} + (y_{A}- y_{C}) ^{2}$

Replacing the numeric values:

$r^{2} =(3- (-2)) ^{2} + (2-3) ^{2}\\r^{2} =(5) ^{2} + (-1) ^{2}\\r=\sqrt{26}$

The radius of the circle is √26.

6 0

3 years ago

Rectangle JKLM is reflected across the x-axis and then the y-axis. The point I was

Sunny_sXe [5.5K]

Reflection involves mirroring a point over a line.

<em>When L is reflected across the x and y axes, the new coordinates are (7,3)</em>

Given that:

$(x,y) \to (-7,-3)$

When a point is reflected across the x-axis, the rule is:

$(x,y) \to (x,-y)$

So, we have:

$(-7,-3) \to (-7,3)$

When a point is reflected across the y-axis, the rule is:

$(x,y) \to (-x,y)$

So, we have:

$(-7,3) \to (7,3)$

Hence, the new coordinates of L are (7,3)