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skad [1K]
3 years ago
6

Need some answers to these questions will give brainliest to who answers all 3 show some

Mathematics
1 answer:
yaroslaw [1]3 years ago
6 0

1.

So on the first question, it does appear that these triangles are similar by SSS. However, we need to do ratios to prove that. Remember that similar figures have proportional sides, and if these triangles are similar, they will all have the same ratio.

\frac{40}{96} =\frac{96-57}{96} =\frac{44}{64+44} \\ \\ \frac{40}{96}=\frac{39}{96} =\frac{44}{108}

If you divide these fractions, you will see that they are all different ratios, therefore the correct answer is A. not similar.

2.

So firstly, we should convert these fractions into improper fractions and have them under fourths to make this look easier.

To convert a mixed fraction to a improper fraction, multiply the whole number by the denominator and add what's on the numerator for that to be your numerator. The results we get are 7/2 and 21/4.

Next, to make the denominator 4, multiply the denominator and the numerator of 7/2 by 2/2 to get 14/4.

Now the scale says that every 1/4" = 1'. Just count the numerators of both fractions and we see that the answer is going to be A. 14 ft by 21 ft

3.

Now for this, just see how many units it gets from 3 to 1 and from -4 to 0.

We see that it takes -2 units from 3 to 1, and since they are both x-coordinates, the first half of the image is x - 2 .

Next, it takes 4 units to get from -4 to 0. Since they are both y-coordinates, the second half of the image is y + 4.

Putting it together, your image is (x - 2, y + 4), or B.

You might be interested in
How do I get the recursive and explicit formulas of this: ..., -3, -18, -108, ...​
PtichkaEL [24]

Answer: multiply by 6

Step-by-step explanation:

3×6=18

18×6=108

108×6=648

8 0
3 years ago
For the sequence below, explain the pattern in words.<br> 14. 11. 8. 5....
AVprozaik [17]

Answer:

you subtract the number by 3

Step-by-step explanation:

the pattern is x-3 so the pattern is subtracting the number by 3 every time

6 0
3 years ago
A ball is thrown vertically upward. After t seconds, its height h (in feet) is given by the function h(t) = 52t - 16t^2 . What i
ahrayia [7]

Answer:

42.25 feet

Step-by-step explanation:

The height function is a parabola.  The maximum value of a negative parabola is at the vertex, which can be found with:

x = -b/2a

where a and b are the coefficients in y = ax² + bx + c.

Here, we have y = -16t² + 52t.  So a = -16 and b = 52.  The vertex is at:

t = -52 / (2×-16)

t = 13/8

Evaluating the function:

h(13/8) = -16(13/8)² + 52(13/8)

h(13/8) = -169/4 + 169/2

h(13/8) = 169/4

h(13/8) = 42.25

7 0
3 years ago
Read 2 more answers
4. Here is a linear equation: y=1/4 x + 5/4
4vir4ik [10]

Step-by-step explanation:

"Solutions to the equation" just means that they are points on the line. To find out if these two points land on this line, plug each one in, like this:

1.5 = (1/4)(1) + (5/4)

1.5 = (1/4) + (5/4)

1.5 = (6/4)

1.5 = 1.5

Since the expression is true, this point is on the line.

Do the same process for the second point (remember a point is formatted (x,y)) and see if it is also a point on the line.

To find the x-intercept, simply plug in 0 for y and see what you get. It should look like (x,0).

7 0
2 years ago
Please help!!! And please be accurate!!! Thank you!!
dem82 [27]

Answer:

BCDA is equivalent to FGHE

A is equivalent to angle E

B is equivalent to angle F

C is equivalent to angle G

D is equivalent to angle H

Step-by-step explanation:

1st step is just figuring out which sides corresponds with which.

A is equivalent to angle E

B is equivalent to angle F

C is equivalent to angle G

D is equivalent to angle H

On the last one I am confused by what it is asking, but here is what I think:

The scale factor from the big figure to the small figure is 1.5 because of 15/10=1.5

12/8=1.5 and so on.

3 0
1 year ago
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