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SpyIntel [72]
3 years ago
12

Calculator A What is the measure of angle A? 5 cm 3 cm Enter your answer as a decimal in the box. Round only your final answer t

o the nearest hundredth. mZA =D B 4 cm C С. 4 1 2 3 4 O​

Mathematics
1 answer:
aev [14]3 years ago
8 0

Answer:

53.13⁰

Step-by-step explanation:

Use sine:

sinθ=opposite/hypotenuse

sin∠A=4/5

∠A=sin⁻¹(0.8)=53.13010235415≈53.13⁰

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Determine if Ginny factored correctly. If not, explain where she made an error. Ginny made a mistake in step 1 when she identifi
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Quadratic equations are second-order equations. Ginney made a mistake when she identified b = 31. It should be b = –31.

<h3>What is a Quadratic Equation?</h3>

A quadratic equation is an equation that can be written in the form of

ax²+bx+c.

Where a is the leading coefficient, and

c is the constant.

In order to find the mistake that Ginny made, we will first find the factors ourselves, therefore, we will factorize the trinomial,

6x^2 - 31x -30 = 0

As we can see that the value of constants are,

a = 6

b = -31

c = 30

6x^2 - 31x -30 = 0\\\\6x^2 - 36x+5x -30 = 0\\\\6x(x-6)+5(x-6)=0\\\\(6x+5)(x-6)=0

Therefore, the factors of the trinomial 6x^2 - 31x -30 = 0 are (6x+5) and (x-6).

If we compare our process with Ginny's process, we will find that she has taken the value of the constant b as 31 which is wrong.

Hence, Ginney made a mistake when she identified b = 31. It should be b = –31.

Learn more about Quadratic Equation:

brainly.com/question/17177510

3 0
2 years ago
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Please help with all. I’m not sure if I’m wrong, PLEASE HELP I WILL GIFT ALL MY POINTS AND BRAINIEST ANSWER
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Answer:

Yes, you are right. Great job!

Step-by-step explanation:

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When 1760 is divided into 14 equal parts, the remainder is 6. What is a correct way to write the quotient?
Ilia_Sergeevich [38]

Division is the inverse of multiplication; therefore it depends on knowing the multiplication table.


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Neko [114]

Answer:

b

Step-by-step explanation:

8 0
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