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statuscvo [17]
2 years ago
10

If you know that two legs of a right triangle are 7 and 16 units long, what is the triangle's area? If necessary, round your ans

wer to two decimal places.
Mathematics
1 answer:
gizmo_the_mogwai [7]2 years ago
5 0
The answer is always A
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Can anyone help me with factoring Trinomials ? If you can comment and I'll message you . If you don't know how to factor Trinomi
bearhunter [10]
I did this two years ago. Hope I can help you.
7 0
3 years ago
Juan takes 15 hours to do a job that his father can do in 6 hours. If juan works for 4.5 hours before his father joins him, how
ad-work [718]
Work it exactly like the other one with Wilda and Karla.

Juan takes 15 hours to do a job ... he does 1/15 of it in an hour.
His father can do it in 6 hours ... he does 1/6 of it in an hour.

Juan works alone for 4.5 hours.  In that time, he does  4.5/15 = 0.3
of the job.  When his father joins him, there's only 0.7 of it to finish.

Working together, they do (1/15 + 1/6) = (2/30 + 5/30) = 7/30 of the job
each hour.

How many times do they have to do  7/30  of the job in order to finish
the  7/10  of it that remains ?  That will be the number of hours they need.

(7/10) / (7/30) = 7/10 x 30/7 = <em>3 hours</em>.

Then they can knock off while it's still daylight, and go for a swim.
3 0
3 years ago
In trapezoid $ABCD$, $\overline{AB}$ is parallel to $\overline{CD}$, $AB = 7$ units, and $CD = 10$ units. Segment $EF$ is drawn
Mekhanik [1.2K]

Answer:

EF = 58/7

Step-by-step explanation:

If you extend both BC and AD to meet at P you get 3 similar triangles PAB, PEF, and PCD. Let's call BF = 3x and FC = 4x. Therefore the following proportions can be expressed:

BP/7 = (BP+7x)/10

10BP = 7*(BP+7x)

10BP = 7BP+49x

3BP = 49x

BP = (49/3)x

BP/7 = (BP+3x)/EF

EF = (BP+3x)*7/BP

EF = ((49/3)x + 3x)*7/((49/3)x)

EF = ((58/3)x*7*3)/(49x)

EF = 58/7

3 0
2 years ago
6(w+3)+10+2m+3(m+5)?
saveliy_v [14]
Group the like terms to get 5m+6w+33.
8 0
2 years ago
Determine whether Y=-x+6 x+y=20 is parallel, perpendicular or neither
Sever21 [200]

Answer:

Parallel

Step-by-step explanation:

-x+6 slope:-1

X+y=20 slope -1

Hence the answer is parallel

5 0
3 years ago
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