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2 years ago

If x =5 and y = 2,work out the value of 2x²

Mathematics

1 answer:

8_murik_8 [283]2 years ago

4 0

Answer:

Step-by-step explanation:

2(5)^2=2(25)=50

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What is the value of x with clear working out please?

nirvana33 [79]

Answer:

Answer:  x is 46° 

Step-by-step explanation:

• Let's first find Angle ACB

${ \rm{ \angle ACB + 23 \degree + 90 \degree = 180 \degree}} \\ \\ { \rm{ \angle ACB = (180 - 90 - 23) \degree}} \\ \\ { \underline{ \rm{ \: \angle ACB = 67 \degree}}}$

• From alternative angles, x = Angle BAC.

• Since AB = AC, then Angle ABC = Angle ACB

${ \rm{x + \angle ABC + \angle ACB = 180 \degree}} \\ \\ { \rm{x + 67 \degree + 67 \degree = 180 \degree}} \\ \\ { \rm{x + 134 \degree = 180 \degree}} \\ \\ { \boxed{ \rm{x = 46 \degree}}}$

5 0

2 years ago

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A triangle with side lengths a, b, and c is shown below.

nataly862011 [7]

Answer:

a+c=b

hope it helps you

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7 0

1 year ago

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Someone Please help me with this question Ill give brainliest and 50 Points.

Ilia_Sergeevich [38]

Answer:

3X+30 30/3=10 10X3=30 ALSO FOR X-5 x=10 so 10-5=5

Step-by-step explanation:

7 0

3 years ago

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6,859 in standard form

sasho [114]

thats 6859, there is nothing wrong with it

3 0

3 years ago

51 is 17% of what number

Juliette [100K]

Answer is 300
first change the 17% to decimal value, which is 0.17
Put everything in equation: 51=0.17x
then solve for it
51=0.17x
x=51/0.17
x=300
the number is 300

3 0

3 years ago