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Kisachek [45]
3 years ago
11

PLZ ANSWER BRAINLIEST

Mathematics
2 answers:
cricket20 [7]3 years ago
4 0

Answer:

Tom wont need a longer ladder.

Step-by-step explanation:

Allisa [31]3 years ago
4 0

Answer:

No the ladder is long enough.

Step-by-step explanation:

30x30=900

4x4=16

Sq. Root of (900+16)= 30.27ft distance from the ground to the roof, 4 ft away from the house.

You might be interested in
Usett =3.14 find the circumference and area of a circle d =7cm​
Anarel [89]

Answer:

area=38.465, circumference=21.98

Step-by-step explanation:

Divide the diameter by 2 to find the radius

7/2=3.5

Use the formula πr^2 find area

3.5*3.5=12.25

12.25*3.14=38.465

a=38.465

Then, use the formula 2πr to find circumference

2*3.14=6.28

6.28*3.5=21.98

c=21.98

8 0
3 years ago
A flexible cable always hangs in the shape of a catenary curve y = c + a cosh(x/a), where cand a are constants, a > 0. Suppos
dusya [7]

Answer:

The slope of this curve where it meets the right pole is 1.130

The angle between the line and the right pole is 41.51 °

Step-by-step explanation:

Given that ;

y = 30 \ cos h (\dfrac{x}{15} - 4)

\dfrac{dy}{dx}= \dfrac{30}{15} sinh(\dfrac{x}{15})

\dfrac{dy}{dx}=2 \  sinh(\dfrac{x}{15})

x = 9 m;( i.e half of the distance of the two poles at 18 meters apart.

\dfrac{dy}{dx}=2 \  sinh(\dfrac{9}{15})

= 1.130

The slope of this curve where it meets the right pole is 1.130

The angle between the line an the right rope can be determined by using the tangent of the slope .

tan ∝ = 1.130

∝ = tan⁻¹ (1.130)

∝ = 48.49°

The angle is θ; so

θ = 90 - ∝

θ = 90 - 48.49°

θ = 41.51 °

Thus; the angle between the line and the right pole is 41.51 °

6 0
3 years ago
3(x-1) - 8 = 4(1+x) +5
ryzh [129]

For this case we must simplify the following expression and find the value of the variable "x":

3 (x-1) -8 = 4 (1 + x) +5

We apply distributive property to the terms of parentheses:

3x-3-8 = 4 + 4x + 5

We add similar terms:

3x-11 = 9 + 4x

We subtract 4x on both sides:

3x-4x-11 = 9\\-x-11 = 9

We add 11 to both sides:

-x = 11 + 9\\-x = 20\\x = -20

Answer:

x = -20

8 0
4 years ago
Somebody please belp
Alex Ar [27]

Answer:

- 22.76

Step-by-step explanation:

if b = - 0.16 the you subtract that with - 22.6

- 0.16 - 22.6 = - 22.76

5 0
3 years ago
Amy makes the following statement:
Nonamiya [84]

Answer:

B

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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