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3 years ago

Find the corrdinates of the missing endpoint if e is the midpoint of DF F(2’9) e(-1,6)

Mathematics

2 answers:

jeka57 [31]3 years ago

6 0

Step-by-step explanation:

Using vectors

DE = EF

e - d = f - e

Collect like terms

-d = f - 2e

Multiply both sides by -1

d = 2e - f

d = 2(-1,6) - (2,9)

d = (-2,12) - (2,9)

d = (-4,3)

This is the missing endpoint.

Hope this helps :-)

svp [43]3 years ago

3 0

Answer:

(-4,3)

Step-by-step explanation:

(x1 + 2)/2 = -1

x1 = -4

(y1 + 9)/2 = 6

y1 = 3

So, the other endpoint is (-4,3) .

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Write down value of x

allsm [11]

Answer:

x = 65°

y = 71°

z = 44°

Step-by-step explanation:

Value of x: 65

Reason: the angle x is opposite to the 65° angle, this means that these two angles are congruent, thus they have the same value.

Value of y: 71°

Reason: the angle y is congruent to the angle of 71 ° this because if we lengthened the lines (similar to that shown with the angles x and 65 °) we will notice that the angle opposite to y is 71 ° and therefore y is also equal to 71 °

Workout the size of angle z:

The sum of the interior angles in a triangle is always equal to 180 °, in this case the interior angles are x, y and z. Since we already know the values of x and y, we can find z by adding the values and equaling 180°:

65° + 71° + z = °180

and we solve for z:

136° + z = 180°

z = 180° - 136°

z = 44°

3 0

3 years ago

Read 2 more answers

The slope intercept form of a linear equation is y=my+b where x and y are coordinates of an ordered pair , m is the slope of the

kenny6666 [7]

I would help you but, i do not know the answer.

6 0

3 years ago

Please help me with algebra 2 questions!

Julli [10]

Answer:

5B; 7B; 1,024; see answer

Step-by-step explanation:

We can see from the table that

a1 = 5

a2= 5·2 = 10

a3= 5·2·2 = 5·2² = 20

a4 = 5·2·2·2 = 5·2³ = 40

...

$a_{n} = 5*2^{n-1}$

Is given that the filter removes 90% of contaminated air

after run 1 :

100% air

90% contamination removed for 100% air

100% is 10%+10%+10%+10%+10%+10%+10%+10%+10%+10%

10% is still contaminated air

after run 2:

10% air

90% contamination removed for 10% air

10% is 1%+1%+1%+1%+1%+1%+1%+1%+1%+1%

1% is still contaminated air

after run 3:

1% air

90% contamination removed for 1% air

1% is .1%+.1%+.1%+.1%+.1%+.1%+.1%+.1%+.1%+.1%

.1% is still contaminated air

11.

Figure 1 = 1 piece

Figure 2 = 4 pieces

Figure 3 = 4² = 16

...

$Figure 6 = 4^{(6-1)} = 4^{5} = 1024$

12.

$(c+d)^{6} \\$

-we know that the coefficients should be 1, 6, 15, 20, 15, 6, 1

-we start with c to the lowest power 0 and d to the highest power 6 and end with d to the lowest power 0 and c to the highest power 6

$(c+d)^{6} = 1*c^{0} d^{6} +6*c^{1} d^{5} +15*c^{2} d^{4} +20*c^{3} d^{3} +15*c^{4} d^{2} +6*c^{5} d^{1} +1*c^{6} d^{0}$

-we simplify to have the final answer:

$(c+d)^{6 } = d^{6} +6cd^{5} +15c^{2} d^{4} +20c^{3} d^{3} +15c^{4} d^{2} +6c^{5} d+c^{6}$

7 0

2 years ago

Geometry Question Need Help. Solve for x:

diamong [38]

Answer:

im not sure

Step-by-step explanation:

sorry

5 0

3 years ago

What’s the graph function f(x) =4(1.5)^x

WARRIOR [948]

Answer:

See below.

Step-by-step explanation:

Step 1. Find any zeroes.

(a) y-intercept

y = 4(1.5)^x Let x = 0

= 4(1.5)⁰

= 4 × 1

= 4

We have a point at (0,4).

(b) x-intercept

y = 4(1.5)^x Let y = 0

0 = 4(1.5)^x Divide each side by 4

0 = (1.5)^x Take the log of each side

log0 = xlog1.5

log(0) is undefined. There is no x-intercept.

Step 2. Identify any asymptotes

y = 4(1.5)^x

y can never be negative, so the x-axis is an asymptote.

Step 3. Plug in and plot a few points

Here's a table of a few points.

x y

-6 0.4

-4 0.8

-2 1.8

-1 2.7

0 4.0

1 6.0

2 9.0

4 20.3

6 45.6

Step 4. Check the end behaviour.

y = 4(1.5)^x

As x ⟶ ∞, y ⟶ ∞.

As x ⟶ -∞, y ⟶ 0 .

Step 5. Draw a smooth line through the points.

Your graph should look something like the one below.

6 0

4 years ago