2 years ago

NO SCAM LINKS. please reply ASAP PLEASEEEE

Mathematics

2 answers:

natulia [17]2 years ago

6 0

Answer:

Step-by-step explanation:

kirill115 [55]2 years ago

5 0

The answer is B hope this helps

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Evaluate 3x2 - 4 when χ= 2. Α. 2 Ο Ο Ο Ο Β. 8 C. 12 Ο D. 32

solniwko [45]

Answer:

D. 32.

Step-by-step explanation:

$3x^2 - 4\\= 3^2 * 2\\= 6^2 - 4\\= 36 - 4\\= 32.$

hope this helps.

3 0

2 years ago

If 2x + 5y = -5 what is x if y = -5 HELP ASAP

mash [69]

Answer:

x=10

Step-by-step explanation:

first substitute y with the value (-5)

2x+5(-5)=-5 which is simplified to 2x+-25=-5

add 25 to -5 which gives you 2x=20

then divide 20 by 2 which makes x=10

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3 years ago

What is the gradient of the graph shown? Give your answer in its simplest form.

Amiraneli [1.4K]

Answer:

-2

Step-by-step explanation:

I think this was the question you were talking about.

4 0

2 years ago

Can someone solve this?

aleksley [76]

Answer:

Considering the Law of Cosines:

$c^2=a^2+b^2-2ab*cosC$

$a=14mi; b=24mi; c=CA; C=91degrees$

$\cos \left(91^{\circ \:}\right)=-0.01745\dots$

$c^2=14^2+24^2-2(14)(24)*\cos \left(91^{\circ \:}\right)\\c^2=196+576-672*\cos \left(91^{\circ \:}\right)\\c^2=772-672*\cos \left(91^{\circ \:}\right)\\c^2=772-672*(-0.01745)\\c^2=772+11.7264\\c=\sqrt{772+11.7264} \\c=\sqrt{783.7264}\\c=27.99mi$

4 0

3 years ago

A garden is in the shape of a semicircle with a radius of 25 feet. Fencing is placed around this garden. How much fencing, in fe

Len [333]

Answer:

S.A. = 981.7 ft^2

Step-by-step explanation:

radius = 25 ft

S.A. = 1/2πr2

S.A. = 1/2π(25)^2

S.A. = 981.7

4 0

3 years ago

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