Please help<br> picture included<br> multiple choice <br> will appreciate it if you help!

Polygons QRST and Q′R′S′T′ are shown on the following coordinate grid: A coordinate plane with two polygons is shown. Polygon QR

creativ13 [48]

As you can see from the picture you have:
to rotate point S about the origin by $90^0$ clockwise to form point S'';
to rotate point R about the origin by $90^0$ clockwise to form point R'';
to rotate point Q about the origin by $90^0$ clockwise to form point Q'';
to rotate point T about the origin by $90^0$ clockwise to form point T''.
Then you have to translate polygon Q''R''S''T'' 1 unit down.
Note that rotation $90^0$ clockwise is the same as rotation $270^0$ counterclockwise, so the correct answer is rotating $270^0$ counterclockwise about the origin and translating 1 unit down.

8 0

3 years ago

Read 2 more answers

Hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Ahat [919]

Answer:

Question 1. Multiply 4 by 2

Question 2 . 85 + 6*7 = 127

Question 3. 24 + 3*5 = 39

Question 4. 16.75 + 32.5*9 = 46

Question 5. 2*0.4^2 + 4*0.4*3 = 5.12 (Im not positive that this one is correct or not but I tried my best)

6 0

3 years ago

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An archway will be constructed over a walkway. A piece of wood will need to be curved to match a parabola. Explain to Maurice ho

mariarad [96]

Ok

so the focus is on the opening side of the parabola

so for a vertex of (h,k)
opening up and down
(x-h)²=4p(y-k)
p is the distance from vertex to focus
it is also the distance from the vertex to the closes point on directix
2p=distance from focus to directix

p is positive if the focus is above the directix

ok
y=9 and (7,6)
9>6
directix is above the vertex
p is negative
find distance
from 9 to 6 is 3
3=2p
1.5=p
p is negative
and the vertex will be 1.5 above the focus and 1.5 below the directix
vertex is (7,7.5)

(x-7)²=4(-1.5)(y-7.5) is de equation

6 0

4 years ago

Please please please i need help !!!

Stella [2.4K]

Answer: Choice B

h(c) = 1 for at least one c between -3 and 4

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Explanation:

Draw an xy axis system. Plot the points (-3,-1) and (4,2) on this grid. These points come from the fact that h(-3) = -1 and h(4) = 2. These are the endpoints of the h(x) function.

Next, draw horizontal lines through both points. Also, draw vertical lines through the two points as well. A rectangle will form.

The region inside this rectangle is all we care about.

We're told that h(x) has endpoints mentioned earlier, and h(x) is continuous, so that means we have some curve or line through the two points. One such example is shown below. There are infinitely many possible curves to draw out as long as they stay in the rectangle.

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After you have your h(x) function curve drawn, draw a horizontal line through y = 1 on the y axis. This is the dashed line in the diagram below.

This horizontal line crosses the green h(x) curve at one point or more. In my example, it does so at one point only. However, you could easily draw h(x) so that it crosses y = 1 as many times as you want (just have it squiggle up and down multiple times).

This shows that h(c) = 1 is possible when $-3 \le c \le 4$ . Here c is playing the role of x since it is the input of a function. The h(c) is the output, so that's the y value.

This says that for some input between -3 and 4, it's possible to get an output of 1.

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Here's a real world example of the intermediate value theorem.

Let's say the endpoints are A and B, and they are two towns.

The h(x) curve is a road connecting the towns.

To go from A to B, or vice versa, we need to cross over some border that is between the towns. The border in this case is the dashed horizontal line in the diagram.

side note: A special use of the intermediate value theorem is to show that a root exists on some interval (if you know the function changes between positive to negative, or vice versa).

7 0

3 years ago

An expression is given (3^2)^3•3^6/3^4 the rest of the question is in the picture

timama [110]

Answer:

3⁷

Step-by-step explanation:

it's kinda messy but my step by step is in the picture. practically when you "multiply" an exponent (as long as they have the same base number) with another like 3⁴×3⁵ or (3⁴)⁵ you add the exponents together so you'd get 3⁴×3⁵=3⁹

when dividing an exponent by another exponent (with again, the same base number) you subtract the exponents like this: 3⁶÷3² or 3⁶/3² would equal 3⁴

6 0

3 years ago

Please help picture included multiple choice will appreciate it if you help!