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Rudiy27
3 years ago
10

The points (-4,r) and (2,-3) lie on a line with a slope-1. Find the missing coordinator r.?

Mathematics
1 answer:
MAVERICK [17]3 years ago
7 0

Answer:

3 (-4,3)

Step-by-step explanation:

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A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 88 feetfeet less than th
Y_Kistochka [10]

Answer: The length of the ladder is 20 feet.

Step-by-step explanation:

Given : A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 8 feet less than the length of the ladder.

Mathematically,

Let x be the length of the ladder then

Distance from ground to the top of the ladder = x- 8

If distance from the bottom of the ladder to the building is 16 feet.

Since ground makes right angle with building , so the triangle made by ladder should be a right triangle.

By Pythagoras theorem of right triangle , we hae

(Hypotenuse)=(Perpendicular)^2+(Base)^2

\Rightarrow\ x^2=(x-8)^2+16^2\\\\\Rightarrow\ x^2=x^2+64-16x+256\ [\text{Using identity :} (a-b)^2=a^+b^2-2ab]\\\\\Rightarrow 0=-16x+320\\\\\Rightarrow\ 16x=320\\\\\Rightarrow\ x=\dfrac{320}{16}=20

Hence, the length of the ladder is 20 feet.

4 0
3 years ago
Use a calculator to find the approximate value of sin-1 (0.549)
tatyana61 [14]
This is the concept of algebra, we are required to approximate the arcsin of the value given using a calculator;
sin theta=[opposite]/[hypotenuse]
arcsin is the inverse of sin, thus;
arcsin(0.549)=33.2984
the answer is 33.3984°
6 0
3 years ago
Read 2 more answers
Use repeated addition to find the solution to each multiplication problem. Change any improper fractions to mixed numbers. 4x1/3
Nata [24]

Answer:

1\frac{1}{3}

Step-by-step explanation:

Given the following question:

4\times\frac{1}{3}

To find the answer simply multiply the numerators and the denominators by each other.

4\times\frac{1}{3}
4=\frac{4}{1}
\frac{4}{1} \times\frac{1}{3}
4\times1=4
1\times3=3
=\frac{4}{3}
\frac{4}{3} =4\div3=1\frac{1}{3}
1\frac{1}{3}

Hope this helps.

7 0
2 years ago
In one version of trail mix, there are 3 cups of peanuts mixed with 2 cups of raisins. In another version of trail mix, there ar
vagabundo [1.1K]

Answer:

No

Step-by-step explanation:

The 4.5 cups of peanuts should be 4

3 0
3 years ago
30 points<br> Picture attached
Reika [66]
What is the problem cause i dont see a photo

7 0
3 years ago
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