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k0ka [10]
2 years ago
10

HELP THIS IS URGENT WILL GIVE BRANLIEST ANSWER 3 AND 6

Mathematics
1 answer:
Sophie [7]2 years ago
5 0
Awnser is c because i just did it
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Help plsssssssssss number 3
ch4aika [34]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
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Factor the polynomial completely. 14a^4 b^2 - 21a^3 b^2
Gnom [1K]

Answer: b^{2}(1-21a^{3})

Step-by-step explanation:

b^{2} - 21a^{3} b^{2} \\b^{2}(1-21a^{3})

8 0
2 years ago
Write an equivalent equation that does not contain fractions.
Thepotemich [5.8K]
1)\\\frac{3}{7}x+3=\frac{1}{8}\ \ \ \ |multiply\ both\ sides\ by\ LCD(\frac{3}{7};\ \frac{1}{8})=56\\\\56\times\frac{3}{7}x+56\times3=56\times\frac{1}{8}\\\\8\times3x+168=7\\\\\boxed{\boxed{24x+168=7}}\ \ \  \ |subtract\ 168\ from\ both\ sides\\\\24x=161\ \ \ \ \ |divide\ both\ sides\ by\ 24\\\\\boxed{x=\frac{161}{24}}


2)\\\frac{1}{6}x-4=\frac{2}{9}\ \ \ \ |multiply\ both\ sides\ by\ LCD(\frac{1}{6};\ \frac{2}{9})=18\\\\18\times\frac{1}{6}x-18\times4=18\times\frac{2}{9}\\\\3x-72=2\times2\\\\\boxed{\boxed{3x-72=4}}\ \ \  \ \ |add\ 72\ to\ both\ sides\\\\3x=76\ \ \ \ \ \ |divide\ both\ sides\ by\ 3\\\\\boxed{x=\frac{76}{3}}


3)\\\frac{5}{8}x-10=\frac{3}{4}\ \ \ \ \ |multiply\ both\ sides\ by\ LCD(\frac{5}{8};\ \frac{3}{4})=8\\\\8\times\frac{5}{8}x-8\times10=8\times\frac{3}{4}\\\\5x-80=2\times3\\\\\boxed{\boxed{5x-80=6}}\ \ \  \ \ |add\ 80\ to\ both\ sides\\\\5x=86\ \ \ \ \ \ |divide\ both\ sides\ by\ 5\\\\\boxed{x=\frac{86}{5}}


4)\\\frac{4}{5}x-12=\frac{3}{4}\ \ \ \ \ \ |multiply\ both\ sides\ by\ LCD(\frac{4}{5};\ \frac{3}{4})=20\\\\20\times\frac{4}{5}x-20\times12=20\times\frac{3}{4}\\\\4\times4x-240=5\times3\\\\\boxed{\boxed{16x-240=15}}\ \ \ \ \ |add\ 240\ to\ both\ sides\\\\16x=255\ \ \ \ \ |divide\ both\ sides\ by\ 16\\\\\boxed{x=\frac{255}{16}}
5 0
4 years ago
EASY I AM JUST DUMB!! WILL GIVE BRANLIEST!!! HELP ASAP!!!!
Helga [31]
<h3>Answer: D) Midsegment Theorem for Trapezoids</h3>

Assuming that the bottom horizontal segment is 9 units long, this would mean that x = 5 on top, added to the 9 on the bottom, gives 5+9 = 14. This cuts in half to get 14/2 = 7, which is the length of the midsegment of the trapezoid.

In short: add the parallel sides of the trapezoid, then cut that result in half. This will yield the midsegment.

8 0
3 years ago
4/9 &gt; y/18 please help me solve this ASAP would be nice please thank you
zlopas [31]

Answer:

2>y

Step-by-step explanation:

4/9>y/18

Here u cross multiple

4*18 >9*y

72>9y

the you divide both sides by 9

72/9>9y/9

8>y

3 0
3 years ago
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