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2 years ago

Doing math need help on it

Mathematics

2 answers:

Ann [662]2 years ago

5 0

Answer:

386 that lay eggs

Step-by-step explanation:

440-39= 401 hens

401hens- 15= 386

Tasya [4]2 years ago

4 0

Answer:

386 that lay eggs

440-39= 401 hens

401 hens- 15= 386

:-)

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Factorize: a^2+10ab -75b^2

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

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2 years ago

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What is X squared +3x-70

Aleksandr-060686 [28]

Answer:

x = 7, x = -10

Step-by-step explanation:

$x^2+3x-70 = 0$

Use the quadratic formula.

$x = \frac{-3 + \sqrt{3^2-4(1)(-70)} }{2(1)} \\x = \frac{-3 - \sqrt{3^2-4(1)(-70)} }{2(1)} \\$

Solve.

x = 7, x = -10

You can also factor if you want - that is a faster method.

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3 years ago

Write the number 4, 207 in expanded form.

Arisa [49]

Answer:

(4.1000)+ (2.100) + (7.10)

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3 years ago

Kelly is three years younger than her sister. The sum of their ages is 34 years. How old is Kelly and how old is her sister?

Kazeer [188]

Answer:

Kelly is 20

Her sister is 14

Step-by-step explanation:

34 ÷ 2 = 17 (average)

17 + 3 = <u>20</u>

17 - 3 = <u>14</u>

4 0

3 years ago

Which graph is the solution to lxl > 10?

ale4655 [162]

$\huge\text{Hey there!}$

$\huge\text{Note}\rightarrow$ $\leq \& \geq \ = \huge\text{closed circle}\\ < \& > = \huge\text{(o)(p)(e)(n)(e)(d) circle}$

$\huge\text{So, we know that A or C could be our answer}.$

$\huge\text{Eliminate option B and D}$

→ $\huge\text{Find the absolute value of the problem}$

→ $\huge\text{You can now know that it could be:}$

$\huge\text{x}\large\huge{\ >}\huge\text{ 10 or x }< \huge\text{ -10}$

→ $\huge\text{Possible answer \#1: x }>\huge\text{10}\\\\\huge\text{Possible answer \#2: x}$

→ $\boxed{\boxed{\huge\text{Answer: C}}}$

$\huge\text{Option A. would be too small}$ $\huge\checkmark$

$\text{Good luck on your assignment and enjoy your day!}$

~ $\frak{LoveYourselfFirst:)}$

5 0

3 years ago

Doing math need help on it ​

Doing math need help on it