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3 years ago

Please help Due tomorrow!

Mathematics

2 answers:

Maksim231197 [3]3 years ago

7 0

Answer: It may possibly be SU

Step-by-step explanation:

Feliz [49]3 years ago

5 0

Answer:

Step-by-step explanation:

The triangles are reflections of each other (the same but mirrored).

So if you trace a line from point D to F, and do the mirrored motion on the other triangle, you get SU

You might be interested in

The volume of a sphere is 2145 cubic centimeters. What is the approximate diameter of this sphere?

eimsori [14]

Answer:

d = 2(40.11 cm) = 80.22 cm

Step-by-step explanation:

The formula for volume of a sphere is V = (4/3)πr³

and here V = (4/3)πr³ = 2145 cm³

Let's simplify this equation by multiplying both sides by (3/4); this will cause (4/3) to disappear:

(3/4)(4/3)πr³ = (3/4)2145 cm³, or

r³ = 1608.75 cm³

Taking the cube root of both sides, we get:

r = 40.11 cm

Remembering that diameter = 2 times radius, we calculate the diameter:

d = 2(40.11 cm) = 80.22 cm

6 0

4 years ago

A ball is thrown into the air by a baby alien on a planet in the system of Alpha Centauri with a velocity of 29 ft/s. Its height

Ilia_Sergeevich [38]

Answer:

$\overline{v}_{@\Delta t=0.01s}=-15.22ft/s, \overline{v}_{@\Delta t=0.005s}=-15.11ft/s, \overline{v}_{@\Delta t=0.002s}=-15.044ft/s, \overline{v}_{@\Delta t=0.001s}=-15.022ft/s$

Step-by-step explanation:

Now, in order to solve this problem, we need to use the average velocity formula:

$\overline{v}=\frac{y_{f}-y_{0}}{t_{f}-t_{0}}$

From this point on, you have two possibilities, either you find each individual $y_{f}, y_{0}, t_{f}, t_{0}$ and input them into the formula, or you find a formula you can use to directly input the change of times. I'll take the second approach.

We know that:

$t_{f}-t_{0}=\Delta t$

and we also know that:

$t_{f}=t_{0}+\Delta t$

in order to find the final position, we can substitute this final time into the function, so we get:

$y_{f}=29(t_{0}+\Delta t)-22(t_{0}+\Delta t)^{2}$

so we can rewrite our formula as:

$\overline{v}=\frac{29(t_{0}+\Delta t)-22(t_{0}+\Delta t)^{2}-y_{0}}{\Delta t}$

$y_{0}$ will always be the same, so we can start by calculating that, we take the provided function ans evaluate it for t=1s, so we get:

$y_{0}=29t-22t^{2}$

$y_{0}=29(1)-22(1)^{2}$

$y_{0}=7ft$

we can substitute it into our average velocity equation:

$\overline{v}=\frac{29(t_{0}+\Delta t)-22(t_{0}+\Delta t)^{2}-7}{\Delta t}$

and we also know that the initil time will always be 1, so we can substitute it as well.

$\overline{v}=\frac{29(1+\Delta t)-22(1+\Delta t)^{2}-7}{\Delta t}$

so we can now simplify our formula by expanding the numerator:

$\overline{v}=\frac{29+29\Delta t-22(1+2\Delta t+\Delta t^{2})-7}{\Delta t}$

$\overline{v}=\frac{29+29\Delta t-22-44\Delta t-22\Delta t^{2}-7}{\Delta t}$

we can now simplify this to:

$\overline{v}=\frac{-15\Delta t-22\Delta t^{2}}{\Delta t}$

Now we can factor Δt to get:

$\overline{v}=\frac{\Delta t(-15-22\Delta t)}{\Delta t}$

and simplify

$\overline{v}=-15-22\Delta t$

Which is the equation that will represent the average speed of the ball. So now we can substitute each period into our equation so we get:

$\overline{v}_{@\Delta t=0.01s}=-15-22(0.01)=-15.22ft/s$

$\overline{v}_{@\Delta t=0.005s}=-15-22(0.005)=-15.11ft/s$

$\overline{v}_{@\Delta t=0.002s}=-15-22(0.002)=-15.044ft/s$

$\overline{v}_{@\Delta t=0.001s}=-15-22(0.001)=-15.022ft/s$

5 0

3 years ago

Two angels re supplementary. The larger angle is 48 degrees more than the 10 times the smaller angle. Find the measure of each a

evablogger [386]

Supplementary angles are two angles that add up to 180°.

STEP 1:
find the value of x

x= smaller angle
10x + 48= larger angle

Add the two angles above to equal 180.

x + (10x + 48)= 180
combine like terms

11x + 48= 180
subtract 48 from both sides

11x= 132
divide both sides by 11

x= 12° smaller angle

STEP 2:
find the value of the second angle

=10x + 48
=10(12) + 48
=120 + 48
=168° larger angle

CHECK:
12° + 168°= 180°
180°= 180°

ANSWER: The smaller angle is 12° and the larger angle is 168°.

Hope this helps! :)

8 0

3 years ago

Use the associative property to write an equivalent expression for -5/6 • (12•87) and then simplify.

mote1985 [20]

Step-by-step explanation:

The associative property for multiplication: <em>(a · b) · c = a · (b · c)</em>

$-\dfrac{5}{6}\cdot(12\cdot87)=\left(-\dfrac{5}{6\!\!\!\!\diagup_1}\cdot12\!\!\!\!\!\diagup^2\right)\cdot87=(-5\cdot2)\cdot87=(-10)(87)=-870$

6 0

3 years ago

the sum of the distances two hikers walked is 53 miles, and the difference is 25 miles. what are the distances

mestny [16]

To solve this problem, you can create a system of equations and solve for each hiker's distance walked.

Hiker 1 distance walked: x
Hiker 2 distance walked: y

Their combined distance walked is 53 miles, thus -
x + y = 53

The difference between miles walked is 25, thus -
x - 25 = y

Let's solve using substitution. To do that, substitute x - 23 into x + y = 53 for y.

x + y = 53
x + (x - 25) = 53
x + x - 25 = 53
2x - 25 = 53
2x = 78
x = 39

To find y, substitute 39 for x into either of the equations.

x + y = 53
39 + y = 53
y = 14

Finally, check all work.

x + y = 53
39 + 14 = 53
53 = 53

x - 25 = y
39 - 25 = 14
14 = 14

Answer:
One hiker walked 39 miles and the other hiker walked 14 miles.

4 0

3 years ago