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Reptile [31]
3 years ago
9

30 is exactly halfway between.....and 48

Mathematics
1 answer:
Natalija [7]3 years ago
8 0

it could be 12 because when you add 18 to 30 you get 40 and you take away 18 from 30 you get 12


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Find the value of x and y<br><br><br>Please help me. Thank you​
STatiana [176]

Answer:

Step-by-step explanation:

let each angle=A

A+A+A=180

3A=180

A=180/3=60°

as the angles are equal so sides are equal.

16+y=46

y=46-16=30

applying sine formula

\frac{30}{sin z} =\frac{46}{sin~80} \\sin~z=\frac{30}{46} \times ~sin~80=\frac{15}{23} \times sin ~80\\z=sin^{-1}( \frac{15}{23} \times sin ~80) \approx~39.96^\circ \approx40^\circ

z+x=60

40+x=60

x=60-40=20°

5 0
3 years ago
Is it the 10s? i dont really know
ella [17]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Multiple Choice: Please select the best answer.
PSYCHO15rus [73]
D. 171

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Explanation:

4(2+5)^2 - 5^2

4 x 7^2 - 5^2

4 x 49 - 25

196 - 25

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Answer: D. 171
7 0
3 years ago
Solve for x: 2x + 13 = 8x - 41
kherson [118]

Answer:

9 is your answer for x.

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. Do the opposite of PEMDAS.

PEMDAS is the order of operations, & =

Parenthesis

Exponent (& Roots)

Multiplication

Division

Addition

Subtraction

First, subtract 13 & 8x from both sides:

2x (-8x) + 13 (-13) = 8x (-8x) - 41 (-13)

2x - 8x = -41 - 13

Simplify. Combine like terms:

-6x = -54

Isolate the variable, x. Divide -6 from both sides:

(-6x)/-6 = (-54)/-6

x = (-54)/(-6)

x = 9

x = 9 is your answer.

~

8 0
3 years ago
Read 2 more answers
Factorise 6+ 9x show working please
Stolb23 [73]
6 + 9x.....a common factor in both terms is 3

3(2 + 3x) <==
5 0
3 years ago
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