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Brilliant_brown [7]

3 years ago

9

Suppose that x and y very inversely. X equals -4/15 when y =-105. Write a function that models the inverse variation then find Y

when x = 10. Write a answer as a decimal and round to the nearest 10th if necessary. Y=_____when x=10

1 answer:

dezoksy [38]3 years ago

8 0

Xy = k
(-4/15)(-105) = k
28 = k
xy = 28
10y = 28
Divide both sides by 10
y = 2.8

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Which transformation produces another triangle that has the same area as the one shown?

vfiekz [6]

Answer:

A reflection in the line y = -2, then a translation 2 units right.

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Rigid transformation are transformation that preserves the shape and size of the object. Rotation, reflection, translation are rigid transformation whereas dilation is not a rigid transformation.

Any transformation regarding dilation changes the side length of the object and hence the area.

From the question, only one option is right. The rest options are not right because they involve dilation. The correct option is:

A reflection in the line y = -2, then a translation 2 units right.

7 0

3 years ago

Solve this and show work

just olya [345]

Answer:

1.71

Step-by-step explanation:

x/4 = 3/7

4 * 3 = 12

12/7 = 1.714285714285714

Rounded to the nearest hundreths, the answer is 1.71

6 0

3 years ago

“Drew has 50 red, green, and blue marbles. He has six more red marbles than blue marbles and four fewer green marbles than blue

kolezko [41]

(1) R+G+B=50
(2) R=B+6
(3) G=B-4 so substitute G in (1)
R+B-4+B=50 substitute (2) in here
B+6+B-4+B=50 group like terms and solve
3B+2=50
3B=50-2
B=48/3=16 substitute in (2) and (3)
R=16+6=22
G=16-4=12
Check
22+12+16=50✅

8 0

3 years ago

Answer a, b and c. See image below

dlinn [17]

Answer:

a) 3/5 < 4/5

b) In general if two fractions have the same denominator, then whichever fraction has the numerator closer to its denominator will be the largest fraction.

c) $\frac{7}{10} > \frac{9}{15}$ <em>or</em> $\frac{7}{10}$

Step-by-step explanation:

a) 3/5 < 4/5

Flip the sign and the placement of the fraction so 3/5 is less then 4/5.

b) In general if two fractions have the same denominator, then whichever fraction has the numerator closer to its denominator will be the largest fraction.

c) We need to change the denominators to a common denominator to compare the size of the two fractions:

$\frac{7}{10}$ × $\frac{3}{3}$ = $\frac{21}{30}$

$\frac{9}{15}$ × $\frac{2}{2}$ = $\frac{18}{30}$

The common denominators of the two fractions is 30. Comparing the two fractions:

$\frac{21}{30} >\frac{18}{30}$ <em>or</em> $\frac{18}{30}$

so we get: $\frac{7}{10} > \frac{9}{15}$ <em>or</em> $\frac{7}{10}$

7 0

3 years ago

Please help if you can:)

geniusboy [140]

Answer:

(-2,17) i think i am not sure

Step-by-step explanation:

8 0

3 years ago