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egoroff_w [7]
2 years ago
10

Can someone help me pls

Mathematics
1 answer:
kirill [66]2 years ago
3 0

Answer:

25 ÷ 20

Step-by-step explanation:

The fraction is for divided (÷)

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cupoosta [38]

Answer:

ummmmmmmmmm this makes no sense

Step-by-step explanation:

4 0
3 years ago
A few weeks ago, Vera bought 5 apples from her local farmers' market. Today, she bought 4 apples. What is the percent of decreas
NikAS [45]
20% decrease

5-4=1
1÷5×100= 20
3 0
3 years ago
What is 208 divided by 4
vodomira [7]

Answer:52

Step-by-step explanation:

5 0
3 years ago
Alan and his classmates performed a linear regression analysis on the data set shown below and found that the line of best fit t
stealth61 [152]

Answer:

C. y=\frac{4}{5}x+7

Step-by-step explanation:

Alan and his classmates found that the line of best fit through the data had the equation y=-\frac{5}{4}x+18

The slope of this line is m=-\frac{5}{4}

If a line would intersect this line of best fit at right angles, then the two lines are perpendicular to each other.

The slopes of perpendicular lines are negative reciprocals of each other,

Hence that line must have slope \frac{-1}{-\frac{5}{4}} =\frac{4}{5}

Therefore we look for a line whose slope is \frac{4}{5} from the given options.

That line is the third option y=\frac{4}{5}x+7

5 0
3 years ago
The equation of a parabola is y=x2+6x+9. Write the equation in vertex form.
nignag [31]

Answer:

Step-by-step explanation:

Vertex form is accomplished by completing the square on the quadratic. Do this by first setting the parabola equal to 0 then moving the constant over to the other side:

x^2+6x=-9

Now take half the linear term, square it, and add it to both sides. Our linear term is 6. Half of 6 is 3, and 3 squared is 9:

x^2+6x+9=-9+9

The reason we do this is to create a perfect square binomial on the left:

(x+3)^2=0 (obviously the 0 results from the addition of 9 and -9). Move the 0 back over to the other side and set the quadratic back equal to y:

(x+3)^2+0=y

This gives you a vertex of (-3, 0), which is a minimum value, since the parabola opens upwards.

6 0
3 years ago
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