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postnew [5]
3 years ago
13

Two window washers, Erica and Irene, lean a ladder against the side of a building so that Erica can wash a window while Irene ho

lds the ladder. The top of the ladder reaches the window, which is 8 meters off the ground. The base of the ladder is 5 meters away from the building. How long is the ladder? If necessary, round to the nearest tenth.

Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
7 0

See picture for solution to your problem.

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The graph shows the relationship between men's shoe sizes and their heights. What type of relationship is this?
vfiekz [6]

Answer:

Linear Relationship

Step-by-step explanation:

The size is steadily progressing and so is the height.

8 0
4 years ago
Read 2 more answers
5x^2-4x=5x+1<br><br> Just need simplified thank you so much
cluponka [151]
Hey!


Using the additive property of equality, we can subtract 5x from both sides to get 5x^2-9x=1. Next, we can subtract 1 from both sides to get 5x^2-9x-1=0. Thus, we have a polynomial equation of the form ax^2+bx+c. To simplify this, we would need to factor it out. In the case where a>1, which this one is, we must factor the polynomial so we end up with (5x+ _)(x+_). Thus, if we put the first blank as the value a and the second value as the value b, we get (5x+a)*(x+b)=5x^2+ax+5xb+ab. Thus, a*b=-1 (since there isn’t an x attached to it) and ax+5xb=-9x. Using a*b=-1, we can divide b from both sides using the multiplicative property of equality to get a=-1/b. Substituting that into ax+5xb=-9x, we have ax+5(-1/a)x=-9x. Dividing x from both sides, we get a+-5/a=-9. Multiplying both sides by a get rid of the -5/a, we get a^2-5=-9a. Adding 9a to both sides, we end up with a^2+9a-5=0. This is simpler than our original equation, and we can quickly figure out that because (0)^2+9*0-5=-5 and (1)^2+9*1-5=5, a must be between 0 and 1 and it would therefore be relatively complex to factor out. Therefore, our equation stays as is, and our simplified equation is 5x^2-9x-1=0

Feel free to ask further questions, and have a great day!
6 0
3 years ago
Amie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randoml
Firlakuza [10]
27 because out of 20 cards 9 are baseball. 20 is 1/3 of 60. 9x3=27
4 0
3 years ago
Read 2 more answers
Nate and some friends go to the fair. Nate spends 12 of his money on rides. He then spends $12 on food. At the end of the day, N
hodyreva [135]

25$

Step-by-step explanation:

12+12= 24
Nate has one left

12+12+1=25

6 0
2 years ago
What is the answer to this question
alexandr402 [8]
You multiply 4.5×4×6 than divide it by 2.79= your answer
5 0
4 years ago
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