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exis [7]
3 years ago
11

If the opposite angle of rhombus are (2x)°and (3x-40°) then what is the value of x?

Mathematics
2 answers:
ch4aika [34]3 years ago
8 0
C I don’t know actually
djverab [1.8K]3 years ago
4 0

we know, that the opposite angles of a Rhombus are equal,

so,

=》

2x  = 3x - 40

=》

3x - 2x = 40

=》

x = 40

so, the value of x = 40°

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Quadratic factorisation Question, help please.
luda_lava [24]
3x^2 + 5x + 2 

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Start by mulitplying a*c = 3 * 2 = 6

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3 years ago
Dan's dog walking job pays $15 per hour his job as a car wash attendant pays $400 each week Dan wants to know how many hours he
Sergio [31]

Answer:

520<400+15x

15x>120

15x+400>520

Explanation:

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Therefore, total earning for walking dogs =$15x

Since he wants to earn more than $520, we have that:

15x+400>520\text{  (Option F)}

We can rewrite this as:

520

If we collect like terms, we have:

\begin{gathered} 520-400

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0. 520<400+15x

,

1. 15x>120

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5 0
1 year ago
a student either knows the answer or guesses. Let 3434 be the probability that he knows the answer and 1414 be the probability t
Arlecino [84]

Answer:    \dfrac{12}{13}

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Let A = he known the answer then A' = he guess the answer.

B = he answered it correctly

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P(A)=\dfrac{3}{4}\ \ ,\ \ P(A')=\dfrac{1}{4}

P(B|A)=1

P(B|A')=\dfrac{1}{4}

By Bayes theorem , we have

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The probability that the student knows the answer given that he answered it correctly is  \dfrac{12}{13} .

6 0
3 years ago
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