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Rufina [12.5K]
3 years ago
9

BRAINLIEST ASAP! PLEASE HELP ME :)

Mathematics
2 answers:
Anni [7]3 years ago
8 0

Answer:

B

Step-by-step explanation:

The perimeter is the sum of the 3 sides of the triangle.

Sum the 3 sides and equate to 60, that is

2y + 1 + 3y + 5 + 7y = 60, that is

12y + 6 = 60 ( subtract 6 from both sides )

12y = 54 ( divide both sides by 12 )

y = 4.5

Thus

2y + 1 = 2(4.5) + 1 = 9 + 1 = 10 in

3y + 5 = 3(4.5) + 5 = 13.5 + 5 = 18.5 in

7y = 7(4.5) = 31.5 in

Olenka [21]3 years ago
8 0

The answer for this question is that the length for one side is added. Add one side( 2y+1 ), then another side by leave the 7y. Now the answer might be in my point of view it’s going to be the last choice or the second to last choice for this question.

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In the paper airplane shown
Murrr4er [49]

Answer:

∠GHE = 55°

Step-by-step explanation:

ABCD is a quadrilateral (4 sided figure). We know that the sum of the interior angles (4 angles) of a quadrilateral in 360°.

Thus, A + B + C + D = 360

<em>we know b = c = 90 and a = 125, thus we can find D.</em>

<em>125 + 90 + 90 + D = 360</em>

305 + D = 360

D = 360 - 305 = 55°

<u>Note:</u> since Quadrilateral ABCD is congruent to Quadrilateral EFGH, then the measure of D is equal to measure of H (Angle GHE). Thus

∠GHE = 55°

2nd answer choice is correct

5 0
3 years ago
Mathew has $40.00, if Mathew wants to buy a bike for $70.00, how much more money will he need to buy the bike?
Gnoma [55]

Answer:

Step-by-step explanation:

30

7 0
3 years ago
Omar's credit card has an APR of 26% calculated on the previous monthly
wariber [46]

Answer:

  B.  $257.33

Step-by-step explanation:

Interest will be charged on the New Balance after the Month 7 payment, $257.33.

4 0
3 years ago
Which statement correctly describes this expression? 2m^3 -11
julsineya [31]

Answer:

Option A is the correct answer

Step-by-step explanation:

A. The difference of twice the cube of a number and 11

3 0
3 years ago
Ví dụ 1.5. Một người đi mua hàng 3 lần. Xác suất lần đầu mua được hàng tốt là 0,7.
vodka [1.7K]

Answer:

a) 0.50575,

b) 0.042

Step-by-step explanation:

Example 1.5. A person goes shopping 3 times. The probability of buying a good product for the first time is 0.7.

If the first time you can buy good products, the next time you can buy good products is 0.85;  (I interpret this as, if you buy a good product, then the next time you buy a good product is 0.85).

And if the last time I bought a bad product, the next time I bought a good one is  0.6. Calculate the probability that:

a) All three times the person bought good goods.

P(Good on 1st shopping event AND Good on 2nd shopping event AND Good on 3rd shopping event) =

P(Good on 1st shopping event) *P(Good on 2nd shopping event | Good on 1st shopping event) * P(Good on 3rd shopping event | 1st and 2nd shopping events yield Good) =

(0.7)(0.85)(0.85) =

0.50575      

b) Only the second time that person buys a bad product.

P(Good on 1st shopping event AND Bad on 2nd shopping event AND Good on 3rd shopping event) =

P(Good on 1st shopping event) *P(Bad on 2nd shopping event | Good on 1st shopping event) * P(Good on 3rd shopping event | 1st is Good and 2nd is Bad shopping events) =

(0.7)(1-0.85)(1-0.6) =

(0.7)(0.15)(0.4) =

0.042

5 0
3 years ago
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