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4 years ago

(9x + 1) -(-7x2 + 4x + 10)

Mathematics

2 answers:

alexandr1967 [171]4 years ago

8 0

On your papers does it say what x equals?

ale4655 [162]4 years ago

7 0

Answer:

= 7x² + 5x - 9

Step-by-step explanation:

(9x + 1) - (-7x² + 4x + 10)

= 9x + 1 - ( -7x² + 4x + 10)

= 9x + 1 + 7x² - 4x - 10

= 7x² + 5x - 9

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HELP ASAP Convert the measurement. 15 meters =___centimeters

BARSIC [14]

Answer:

1500

Step-by-step explanation:

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3 years ago

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Evaluate. 10*10+6⋅7+8 70 142 150 190

algol [13]

Hi there! :)

Answer:

=150

*The answer must have a positive sign.*

Step-by-step explanation:

<h2>Lesson: Order of operations</h2>

Stands for:

Parenthesis

Exponents

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Left to right.

First, you do multiply from left to right.

$10*10=100$

$100+6*7+8$

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$100+42+8$

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3 years ago

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ipn [44]

Answer:

Answer is B

Step-by-step explanation:

Just gotta find the mutliplaction between them

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3 years ago

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QUESTION 3.1 POINT

vladimir2022 [97]

9514 1404 393

Answer:

0.2807

Step-by-step explanation:

The relationship between the effective annual yield (e) and the nominal annual interest rate (r) compounded n times per year is ...

e = (1 +r/n)^n -1

e = (1 +0.25/12)^12 -1 = 0.2807 . . . . . . about 28.07%

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3 years ago

Alice and Bob share an allotment. The ratio of the area of Alice's

marusya05 [52]

Answer:

Step-by-step explanation:

Bob's portion of the allotment :

$Total\:ratio=3+2 =5\\\\= \frac{2}{5}$

Alice's portion :

$Total\:ratio=3+2 =5\\\\= \frac{3}{5}$

Vegetables are :

$Total\:ratio=7+3 =10\\\\= \frac{7}{10}$ of the total area

Vegetables are :

$Total\:ratio=4+1 =5\\\\= \frac{4}{5}$ of Alice's portion, or:

$\frac{4}{5} \times(\frac{3}{5} ) = \frac{12}{25}$

Bob's portion fraction (b):

$\frac{12}{25} + b = \frac{7}{10}$

L.C.M of 25 and 10 =50

$\frac{24}{50} + b = \frac{35}{50} \\\\b =\frac{11}{50}\\\\ Ratio:\\50 - 11 = 39$

Bob's vegetable to fruit ratio is 11 : 39

4 0

3 years ago