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miskamm [114]
4 years ago
7

Please please help!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
slava [35]4 years ago
8 0

c

distance formula

d=radical (x2-x1)+(y2-y1)

(7-7)2 + (9+-4)

0. 13

13+0=13

Anestetic [448]4 years ago
7 0

I think it’s c)13

X2 - X1 = 7-7= 0

Y2 - Y1 = 9 - (-4) = 13

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Can you help? this is on my homework?
Alika [10]
(W+3)(w-3)
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4 0
4 years ago
The population of a local species of bees can be found using an infinite geometric series where a1=860 and the common ratio is 1
erma4kov [3.2K]
a_1=860
a_2=\dfrac{a_1}5
a_3=\dfrac{a_2}5=\dfrac{a_1}{5^2}
\vdots
a_n=\dfrac{a_{n-1}}5=\dfrac{a_{n-2}}{5^2}=\cdots=\dfrac{a_1}{5^{n-1}}

The kth partial sum is

\displaystyle S_k=\sum_{n=1}^ka_n=\sum_{n=1}^k\frac{a_1}{5^{n-1}}
S_k=a_1\left(1+\dfrac15+\dfrac1{5^2}+\cdots+\dfrac1{5^{k-2}}+\dfrac1{5^{k-1}}
\dfrac15S_k=a_1\left(\dfrac15+\dfrac1{5^2}+\dfrac1{5^3}+\cdots+\dfrac1{5^{k-1}}+\dfrac1{5^k}\right)

\implies S_k-\dfrac15S_k=a_1\left(1-\dfrac1{5^k}\right)
\dfrac45 S_k=860\left(1-\dfrac1{5^k}\right)
S_k=1075-\dfrac{1075}{5^k}

As k\to\infty, we're left with

\displaystyle\sum_{n=1}^\infty a_n=\lim_{k\to\infty}\left(1075-\frac{1075}{5^k}\right)=1075

which is the upper limit to the population of the bees.
4 0
3 years ago
A washer and a dryer cost $1025 combined. The washer costs $75 more than the dryer. What is the cost of the dryer?
Tomtit [17]

Answer:

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Step-by-step explanation:

$950+$75 = $1,025

Therefore, the dryer is $950

Hope this helped! :)

6 0
3 years ago
Please help!!!!! pls pls pls asap
kow [346]

Answer: 78

Step-by-step explanation:

First, we want to find the area of the outer triangles. Remember that the equation to finding the area of a triangle is (l x h) x 1/2. So, let’s substitute the values into the equation. It’ll be (6 x 7) x 1/2. Let’s solve! 6 x 7 = 42. Then, 42 x 1/2 = 21. But let’s not forget that we only found the area of one triangle. We still need to find the area of the other outer triangles. So, to do this, we take 21 and multiply by 3 since the other outer triangles have the same dimensions. We would get 63 as our total area for the outer triangles.

Next, we need to find the area for the inner triangle. We will use the same equation: (l x h) x 1/2. Let’s substitute! (6 x 5) x 1/2 will be our final equation. Now, let’s solve. 6 x 5 = 30. 30 x 1/2 = 15. So, as a process of elimination, our area for the inner triangle is 15.

Finally, we need to add the total areas we found together. Our total areas were 63 and 15. Let’s put this into an equation: 63 + 15 = ?. So, 63 + 15 = 78. So, after a long process, 15 is our answer!

Hope this helped!

6 0
4 years ago
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Nat2105 [25]
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5 0
3 years ago
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