3 years ago

What’s the equation to solve M+3n=7

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

5 0

Well i want to tell you the answer!! It is 76CJ

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Help me pls! I have to get his done. Factorise this! 2x^2+5x+3

MArishka [77]

Hello there!☺

$Answer:\boxed{(2x+3)(x+1)}$

$Explanation:$

$2x^2+5x+3$ Factorized

To factor $2x^2+5x+3$ , we will have to do it by grouping.

$2x^2+5x+3\\(2x+3)(x+1)$

$(2x+3)(x+1)$ is your answer.

Hope this helps!☺

8 0

3 years ago

0. A cylindrical tin has a radius of 3 cm. What is the shortest length of a string that can be wound once round the curved surfa

madreJ [45]

Answer: 18.84cm

Step-by-step explanation: 3 x 2 x 3.14 = 18.84cm

4 0

2 years ago

Yoko has scored 81 , 84 , 84 , 69 , and 76 on her previous five tests. What score does she need on her next test so that her ave

kkurt [141]

Took must make a 92 on the next test.
(81+84+84+69+76+x)/6=81
(394+x)/6=81
Multiply by 6 on both sides
394 + x = 486
Subtract 394 from both sides.
x= 92

7 0

3 years ago

QUESTION - What is -2(3x + 12y - 17x - 16y + 4) simplified? ANSWERS A. -40x + 8y + 2 B. 28x + 8y + 2 C. 28x + 6y + 2 D. -28x - 8

erica [24]

Answer:

28 + 8y - 8

Step-by-step explanation:

According to the problem;

-2(3x + 12y - 17x - 16y + 4)

Collecting like terms;

-2(3x -17x + 12y - 16y + 4)

-2(-14x - 4y + 4)

28 + 8y - 8

None of the options matches the correct answer.

8 0

3 years ago

What survival rate in the 10th year would make the average of loss over the 10 year period equal to 38.0%

Marat540 [252]

Answer: 63%

Step-by-step explanation:

First step

Find the 10th year rate of loss that will make the average of loss over the 10 years to equal 38.0%.

Assume this rate is x;

$\frac{(36.2 + 29.0 + 46.2 + 37.5 + 40.9 + 40.0 + 32.6 + 40.5 + 40.1 + x)}{10} = 38.0\\\\\frac{343 + x}{10} = 38\\\\x = 380 - 343\\\\x = 37$

x = 37%

Second step - Survival rate

The survival rate is calculated by;

= 1 - rate of loss

= 1 - 37%

= 63%

7 0

2 years ago