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4 years ago

How can I solve this question

Mathematics

1 answer:

Lapatulllka [165]4 years ago

5 0

Answer:

The value of x can be 5 or 2

Step-by-step explanation:

In given triangle ABC

Interior Angle A = $x^{2} +3x+20$

Interior Angle B = $x^{2} +14x-5$

Exterior Angle I = $3x^{2} +10x+25$

We know that

Exterior Angle of triangle is summation of corresponding opposite angles

Angle I = Angle A + Angle B

$3x^{2} +10x+25= (x^{2} +3x+20)+(x^{2} +14x-5)$

$3x^{2} +10x+25= 2x^{2} +17x+15$

$1x^{2}-7x+10=0$

$x^{2}-2x-5x+10=0$

$x(x-2)-5(x-2)=0$

$(x-5)(x-2)=0$

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A golf store purchases a set of clubs at a wholesale price of $250. Mr. Edmond learned that the clubs were marked up 200%. Is it

Mandarinka [93]

Answer:

Yes, it is possible to have a percent increase greater than 100%. The retail price of the clubs is $750

Step-by-step explanation:

Because the clubs were marked up 200%, we need to add 200% to 100%.

Then to find the retail price, we have to multiply 300%(3) by the wholesale price of $250.

Retail price = 3(250) =750

Therefore, the retail price is $750

8 0

3 years ago

Read 2 more answers

Scuba diving in the reef will cost $120 Australian dollars I have $118 US dollars in my pocket use the equation y = 1.03x where

Lana71 [14]

Answer:

Yes,he can go to scuba diving

Step-by-step explanation:

Given the has $118 american dollars

Also given that the relation betweeen the australian and american currency is y = 1.03x where y is the amount in australian currency and x is the amount in the american currency.

Now we have x= 118.

$y=1.03\times118=121.54$

So the guy has $121.54 Australian dollars and the scuba diving is $120 Australian dollars.Since it cost's less he can afford the scuba diving.

3 0

3 years ago

Decimal Addition

docker41 [41]

4: 0.99

5: 0.66

6: 0.79

7: 5.2

8: 4.86

9: 4.3

I hope I helped! Also, one thing when you adding decimals or multiplying them, pretend the decimal point isn't even there. Then, once you have your answer, you just add the decimal in the middle. Basically just adding like in first grade! Super easy and I hope I helped!

5 0

3 years ago

Is 4 r square the answer...pls I need to know thank you :)

zloy xaker [14]

Step-by-step explanation:

$\pi {r}^{2} \\$

3 0

3 years ago

6 in.

asambeis [7]

Answer:

152 square inches

Step-by-step Explanation:

To answer this, please look at the picture below. We can find the area by separating and combine the value of areas after calculating three values for each areas. (Notice that when we separate them, we get three rectangles which we can use the formula of width × length)

We should get 80+48+24 which add up to 152.

In case if you are confused which parts you don't understand in these photos, you can ask in the comment.

5 0

3 years ago