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diamong [38]
3 years ago
12

ass="latex-formula"> help me please this is hard
Mathematics
2 answers:
ra1l [238]3 years ago
5 0

Answer: i think the answer is 0, -3

Step-by-step explanation:

sergey [27]3 years ago
4 0

Answer:

x is equal to -3

Step-by-step explanation:

If you have a lot of problems with decimal coefficients (I know I do), you can get rid of them first.  Just multiply both sides of the equation by 10:

.3x² + 1 = .1

3x² + 10x = x

Then note that each term is also divisible by x.  If we factor that out, we get:

3x + 10 = 1

Which we can easily solve for x:

3x = -9

x = -3

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A Shopkeeper
Sergio [31]

Answer:

The cost of bicycle is Rs1000

Step-by-step explanation:

Let x be the cost of bicycle

Total profit gained by the shopkeeper by selling at labelled price = 20%

Suppose he sell the bicycles at at 5% discount

Which means that the total profit he learn after discount will be:

20% -5% = 15%

The shopkeeper earns a profit of 15% if he sells at discount.

Profit gained by shopkeeper is:

15% of x = 15/100 · x

15% of x = 0.15x

Thus the profit gained will be 0.15x. As profit gained is equal to 150, we can say that

0.15x = 150

x = 1000

The cost of bicycle is Rs1000

4 0
3 years ago
If angle ABD is 90 degrees. Select all of the angles that measure 42 degrees.
m_a_m_a [10]

Answer:

Measure of angle 2 and angle 4 is 42°.

Step-by-step explanation:

From the figure attached,

m∠ABC = 42°

m(∠ABD) = 90°

m(∠ABD) = m(∠ABC) + m(∠DBC)

90° = 43° + m(∠DBC)

m(∠DBC) = 90 - 43 = 47°

Since ∠ABC ≅ ∠4 [Vertical angles]

m∠ABC = m∠4 = 42°

Since, m∠3 + m∠4 = 90° [Complimentary angles]

m∠3 + 42° = 90°

m∠3 = 90° - 42°

        = 48°

Since, ∠5 ≅ ∠3 [Vertical angles]

m∠5 = m∠3 = 48°

m∠3 + m∠2 = 90° [given that m∠2 + m∠3 = 90°]

m∠2 + 48° = 90°

m∠2 = 90 - 48 = 42°

m∠3+ m∠4 = 90° [Since, ∠3 and ∠4 are the complimentary angles]

48° + m∠4 = 90°

m∠4 = 90 - 48 = 42°

Therefore, ∠2 and ∠4 measure 42°.

5 0
3 years ago
A retailer returned 2,124 defective items to the manufacturer and received a credit for the retail price of $0.66 or 66
gregori [183]

Answer:

the answer is 2279.35

Step-by-step explanation:

its on the smartest app

3 0
3 years ago
PLEASE HELP ME ASAP?!?What is the value of x?
Alexeev081 [22]

Answer:

It is B

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
In the diagram shown, m 1= 50 and m2 = (2x-20)
stepladder [879]

Answer:

x = 35

Step-by-step explanation:

Since m1=m2 :

2x - 20 = 50 \\ 2x = 70 \\ x = 35

6 0
3 years ago
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