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ANEK [815]
3 years ago
5

please help me brainliest for correct answer the sides of a triangle are as follows; (3x - 2), (-5x) and (8x + 7). what is the e

xpression of the perimeter?
Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
8 0

Answer:

<em>Perimeter = 6x + 5.</em>

Step-by-step explanation:

The perimeter is the sum of the three sides.

Perimeter = 3x - 2 + (-5x) + 8x + 7

= 3x - 2 - 5x + 8x + 7

= 3x - 5x + 8x - 2 + 7

= 6x + 5.

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At a basketball game,6 hot dogs cost 27 dollars.what is the cost of 1 hot dogs?how many hotdogs can you buy for 18 dollars
levacccp [35]

Answer:

27 \div 6 = 4.50

18.00 \div 4.50 = 4

Each hot dog costs $4.50

You can but 4 hot dogs with $18

5 0
3 years ago
Select the correct answer.
Vladimir [108]

Answer:

B

Step-by-step explanation:

The sum to n terms of a geometric series is

S_{n} = \frac{a(1-r^{n}) }{1-r}

where a is the first term and r the common ratio

Here a = 6144 and r = \frac{a_{2} }{a_{1} } = \frac{3072}{6144} = \frac{1}{2} , then

S_{10} = \frac{6144(1-(\frac{1}{2}) ^{10}) }{1-\frac{1}{2} }

     = \frac{6144(1-\frac{1}{1024}) }{\frac{1}{2} }

     = 12288(1 - \frac{1}{1024} ) ← distribute

     = 12288 - 12

     = 12276 → B

4 0
3 years ago
Solve the proportion for N:
laila [671]
For the first three questions
5/12 = 35/N
Rearrange: N = 35 / (5/12) = ( 35 / 0.4167 ) = N = 83.99

7/18 = N / 9
Rearrange: N = (7/18)* 9 = 3.5

(2/5) * 240 = 96
He spent $96 on supplies
4 0
3 years ago
Read 2 more answers
Will mark Brainliest and 50 points.
Wewaii [24]

Answer:

In that scenario, you will have the shape of a triangle, with the measures of two sides (the two slopes of the roof) and one angle (the peak angle).

Based on that it's easy to find out the length of the other side of the triangle, which in this case would the width of the house, going from the ending tip of the left part of the roof to the ending tip of the right part of the roof.

Let's name a and c the sides of the roof, and the angle B the peak of the roof.

We are then looking for the length of the b side, that would connect sides a and c.

By the Cosines Law, we know that

cos(B) = \frac{c2 + a2 - b2}{2ca}

Which we can transform to isolate b, this way:

b = \sqrt{a^{2} + c^{2} - 2 * a * c * cos(B)}

So, you just have to enter the length of both sides of the roof and the angle, to get the measurement of the width of the house.

4 0
3 years ago
the campers in cabin b walked 2/3 of the way to silver stream.how many miles did they walk.(silver stream 8 miles)
Alex
You turn 2/3 into 16/24 and 8 into 24/24
then subtract 16/24 from 24/24 and you answer will be 8/24
5 0
4 years ago
Read 2 more answers
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