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4 years ago

Help plaeaseee thank u if u do

Mathematics

2 answers:

Tju [1.3M]4 years ago

8 0

Answer:

T=5

U=6

V=7

W=4

X=5

Y=4

Step-by-step explanation:

1. T + t + 3=13

2t = 10

T= 10/2=5

-------

2. 3u - 1 =17

3u = 18

u = 18/3 =6

_______

3. V+ v - 2 =12

2v = 14

V=7

______

4. w-4 =0

W=4

_______

5. 2x - 10 =0

2x = 10

X=5

_______

6. 12 - 3y=0

- 3y =-12

3y =12

Y=4

$good \: luck$

fomenos4 years ago

3 0

Answer:

hey there mate I hope this will help you :)

Step-by-step explanation:

20)t+t+3=13

2t+3=13

To find the value of t subtracting 3 on both sides

2t+3-3=13-3

2t=10

Dividing 2 on both sides

2t/2=10/2

t=5

21)3u-1=17

To find the value of u adding 1 on both sides

3u-1+1=17+1

3u=18

Dividing 3 on both sides

3u/3=18/3

u=6

22)v+v-2=12

2v-2=12

To find the value of v adding 2 on both sides

2v-2+2=12+2

2v=14

v=7

23)w-4=0

To find the value of w adding 4 on both sides

w-4+4=0+4

w=4

24)2x-10=0

To find the value of x adding 10 on both sides

2x-10+10=0+10

2x=10

x=5

25)12-3y=0

To find the value of y subtracting 12 on both sides

-3y=-12

Dividing -3 on both sides

y=-12/-3

y=4

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3 years ago

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Sergeeva-Olga [200]

Answer: 114.37 ft

Step-by-step explanation:

If we model this situation as a right triangle, where the hypotenuse is the length of the ladder ( $110 ft$ ), the opposite leg is the height the ladder will reach $h$ , and the adjacent leg is the distance between the base of the ladder and the building ( $28 ft$ ); we have two options:

1) Using trigonometric functions, since we are given the angle $\theta=75\°$

2) Using the Pithagorean Theorem

Any of the options will give a similiar result. So, let's choose the Pithagorean Theorem:

$(hypotenuse)^{2}=(opposite-leg)^{2}+(adjacent-leg)^{2}$

$(110 ft)^{2}=(h)^{2}+(28 ft)^{2}$

Isolating $h$ :

$h=\sqrt{(110 ft)^{2}-(28 ft)^{2}}$

$h=106.37 ft$

Adding to this height the extra height of $8 ft$ (since the base of the ladder is at this distance above the ground, perhaps held by a firefighter truck):