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3 years ago

What is the definition for expression in math, please explain clearly.

Mathematics

2 answers:

barxatty [35]3 years ago

5 0

An expression is a mat scentence but not a complet on.Example:2x3. Or a x 5. I hope I said it clearly for you.

forsale [732]3 years ago

3 0

An expression no equal sign for example: 12+2 that does not have an equal sign so its not complete.

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I think it’s either B or D. Please help

Mrrafil [7]

Answer: D

Explanation: The function is an absolute value function with vertex at (-9,0). The slope of the part with x value greater than -9 is positive, and the slope of the part with x value less than -9 is negative.

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3 years ago

Read 2 more answers

Write an equation that could be used to find the measure of angle A

Ainat [17]

Answer: C

Step-by-step explanation: The numerator is the angle measure, and the denominator is the side length. For angle B, the angle is 47 degrees. The opposite side is b, which is 85. We are finding the angle A, which is the numerator. The side 94 is opposite of angle A.

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3 years ago

Can anyone help me ?

Kipish [7]

Answer:

8. 1

7. 9

____

6. 2

5. 2

4. 1

3. 18

2. 10000

1. 25

Step-by-step explanation:

According to the Order of Operations, if there are any grouping symbols, you take care of them first. Second, you deal with any indices, roots, or powers. Third comes the evaluation of Division & Multiplication from left to right in the order of which you see them appear. The fourth and final step is the evaluation of Subtraction & Addition from left to right in the order of which you see them appear.

** I was writing down ALL my writing down all my calculations up until a computer glitch caused my work to go work-rupt, if you know what I mean.

I apologize for the inconvenience, I hope this explanation helps you out alot, and as always, I am joyous to assist anyone at any time.

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3 years ago

Find an equation of the circle that satisfies the given conditions. (Give your answer in terms of x and y.) Center at the origin

Elanso [62]

Answer:

The equation of circle is $x^2+y^2=65$ .

Step-by-step explanation:

It is given that the circle passes through the point (8,1) and center at the origin.

The distance between any point and the circle and center is called radius. it means radius of the given circle is the distance between (0,0) and (8,1).

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Using distance formula the radius of circle is

$r=\sqrt{\left(8-0\right)^2+\left(1-0\right)^2}=\sqrt{65}$

The standard form of a circle is

$(x-h)^2+(y-k)^2=r^2$ .... (1)

where, (h,k) is center and r is radius.

The center of the circle is (0,0). So h=0 and k=0.

Substitute h=0, k=0 and $r=\sqrt{65}$ in equation (1).

$(x-0)^2+(y-0)^2=(\sqrt{65})^2$

$x^2+y^2=65$

Therefore the equation of circle is $x^2+y^2=65$ .

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3 years ago

Emily, Jean, and Amanda live in apartments on the 5th, 6th and 7th floors. One girl likes basketball, one likes football, and th

ss7ja [257]

Answer:

Assuming you mean baseball in stead of basketball, if must be the 5th floor.

Step-by-step explanation:

"The girl on the fifth floor thinks soccer is boring" implies that on the 5th floor lives the football or baseball fan. However, it cannot be the football fan since it is already known that she lives on 6th.

So the baseball fan, which is Jean, lives on 5th.

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3 years ago