Help me please!!! :(

Answers

Answer 1

Answer:

Answer:

the greatest common factor is 5^2 * 7^3

(I think!!!)

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What is (7*7) + 39 - 5 * 8

Answers

Hello there!

(7 x 7) + 39 - 5 x 8

49 + 39 - 40

88 - 40

88 - 40 = 48

Answer:

Step-by-step explanation:

7x7=49

add 39 equals 88

5x8=40

88-40=48

Holly works at a garage.Mr Bakir brings his car in for a service.
He also buys 2 tyres and a battery.
Holly has this list of costs
• service £110
• tyres £49.99 each
• battery £89
She uses this list to start to work out the bill for Mr Bakir.
Holly also has to charge 20% VAT on the costs to work out the total bill.
Work out the total bill. (You MUST show your working in the box below)
(4 Points)

Answers

The total bill that Mr Bakir paid was £358.78, using mathematical operations.

How the total bill is determined:

The total bill can be determined using mathematical operations, including multiplication and addition as follows:

The cost of car service = £110

The cost of 2 tyres bought = £99.98 (£49.99 x 2)

The cost of a battery = £89

Sub- total = £298.98

VAT (20%) = £59.80

Total = £358.78

Thus, including 20% VAT, the total bill for Mr. Bakir was £358.78.

Learn more about mathematical operations at brainly.com/question/30553381.

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Solve the given system using the method of Example 3.25. x1 − x2 = 1 3x1 + x2 = 3 x = 1 0 Correct: Your answer is correct.

Answers

Answer:

$x_1 = 1$

$x_2=0$

Step-by-step explanation:

The question is incomplete as the method is not given.

However, the question can still be solved.

Given

$x_1 - x_2 = 1$

$3x_1 + x_2 = 3$

Make xi the subject in the first equation

$x_1 = 1 + x_2$

Substitute 1 + x2 for xi in the second equation

$3(1+x_2)+x_2 = 3$

Open bracket

$3+3x_2+x_2=3$

$3+4x_2=3$

Collect Like Terms

$4x_2 = 3-3$

$4x_2 =0$

Solve for x2

$x_2=0/4$

$x_2=0$

Recall that:

$x_1 = 1 + x_2$

$x_1 = 1+0$

$x_1 = 1$

Final answer:

The solution to the given system of equations is obtained through substitution. The process involves replacing a variable in one equation with an expression from the other. The final solutions are x1=1 and x2=0.

Explanation:

The system of equations in question is:

1) x1 - x2 = 1

2) 3x1 + x2 = 3

The method to solve this system is through substitution or elimination. First, rewrite the first equation x1 = x2 + 1. This allows us to substitute x1 - 1 for x2 in the second equation, yielding 3(x2 + 1) + x2 = 3, simplifying to 4x2 + 3 = 3. Solving for x2, we get x2 = 0. Substituting x2 into x1 = x2 + 1, we conclude that x1 = 1. Thus, the solution to the system is x1 = 1, x2 = 0.

Learn more about System of Equations here:

brainly.com/question/35467992

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Find the measurement of angle A (round to the nearest tenth)

Answers

Answer:

B) θ = 17.1 degrees

Step-by-step explanation:

Here we have to use the tan ratio to find the answer.

tan = Opposite / Adjacent

Given: Opposite = 4, Adjacent = 13

tan θ = 4/13

θ = tan^-1 (4/13)

θ = 17.1 degrees

Answer: B) 17.1 degrees

Thank you.

Answer:

The correct answer option is 17.1°.

Step-by-step explanation:

We are given a right angled triangle with two known side lengths of perpendicular and base with respect to the unknown angle A for which we have to find the measure.

For that, we can use the formula of tan which by using the two given side lengths.

$tan A =(perpendicular)/(base)$

$tan A =(4)/(13) \n\n\A =tan^(-1)(4)/(13)\n\n\A = 17.1$

Therefore, the measure of the angle A is 17.1°.

Which ordered pair represents the y-intercept of the graph of the equation y= -4x - 7

Answers

Answer:

(0,-7)

Step-by-step explanation:

Answer:

(0,-7)

Step-by-step explanation:

Just took the test

Good luck :)

Are the rational numbers closed under multiplication?

Answers

Answer:

Yes, The rational numbers are closed under multiplication.

Step-by-step explanation:

A rational number is a number which can be expressed in the form of a fraction $(x)/(y)$ , where x and y are integers and y ≠ 0.

Now, closure property of multiplication states that if two rational numbers are multiplied then the product is also a rational number. Thus, if r and t are rational numbers, then

r×t = s, where s is the product of r and t

s is also a rational number.

Hence, the rational numbers are closed under multiplication.

This can be better explained with the help of an example $(3)/(4) * (2)/(5) = (6)/(20)$ ,

It is clear that $(6)/(20)$ is a rational number.

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