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Paul [167]
3 years ago
8

In △ABD, DG=40 in. What is the length of DF? Enter your answer in the box.

Mathematics
1 answer:
expeople1 [14]3 years ago
6 0

Answer:

60. GF=20 so add those together

Step-by-step explanation:

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Evaluate (f + g)(x) if f(x) = 2x and g(x) = 3X - 2<br> when x = 3
77julia77 [94]

Answer:

13

Step-by-step explanation:

→ Substitute 3 into 2x

2 × 3

→ Evaluate

f ( x ) = 6

→ Substitute x = 3 into 3x - 2

3 × 3 - 2

→ Evaluate

7

→ Find the sum of the 2 results

13

7 0
2 years ago
Point B has coordinates ​(4,1). The​ x-coordinate of point A is -4. The distance between point A and point B is 10 units. What a
klasskru [66]

Given:

Point B has coordinates ​(4,1).

The​ x-coordinate of point A is -4.

The distance between point A and point B is 10 units.

To find:

The possible coordinates of point​ A.

Solution:

Let the y-coordinate of point A be y. Then the two points are A(-4,y) and B(4,1).

Distance formula:

D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

The distance between point A and point B is 10 units.

\sqrt{(4-(-4))^2+(1-y)^2}=10

Taking square on both sides, we get

(8)^2+(1-y)^2=100

(1-y)^2=100-64

(1-y)^2=36

Taking square root on both sides, we get

(1-y)=\pm \sqrt{36}

-y=\pm 6-1

y=1\mp 6

y=1-6 and y=1+6

y=-5 and y=7

Therefore, the possible coordinates of point​ A are either (-4,-5) or (-4,7).

7 0
2 years ago
Another name for the term ____ is trade off
WITCHER [35]
I think the answer is an auction!
3 0
3 years ago
Amy is planning the seating arrangement for her wedding reception. Each round table can sit 12 guests. The head table can sit th
adelina 88 [10]

Answer:

D

Step-by-step explanation:

16*12 is 192. Plus the 6 for the bride and groom, and you get a total of 198.

6 0
3 years ago
It takes you 39 seconds to walk from the first​ (ground) floor of a building to the third floor. how long will it take you to wa
nalin [4]
It will take you double the time, or 78 seconds.
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3 years ago
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