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2 years ago

Find the missing angle or find X?

Mathematics

1 answer:

Sindrei [870]2 years ago

3 0

X = 60°
Because the square in the corner tells you that it is 90° (right angle)
So your equation to solve for x would be...
x + 30 = 90
Now you need to isolate the x.

Subtract both sides by 30.
x + 0 = 90 - 30
x = 60

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Tim is buying paper cups and plates. Cups come in a package of 12 and plates come in a package of 10. He must buy the same numbe

snow_tiger [21]

Tim would spend 88 dollars on cups and plates becaus since 12x5 is 60 and 10x6 is 60 then that gets you to the same amount of cups and plates. so you would add 3 plus 5 together to get 8 and then 6 plus 5 togeher to get 11 and then you muliply those toether to get how mcuh he would ahve to spend.

Hope this helps :)

3 0

3 years ago

Simplify (9 ^ 2)/(9 ^ 7)<br> PLS HELP!!!! WILL MARK BRAINLIEST!

Gre4nikov [31]

Answer:

1/9^5

Step-by-step explanation:

Yeah you're correct, 9^2/9^7 = 1/9^(7-2).

5 0

2 years ago

9. What formula could be used to find the area of the image?

Scilla [17]

Answer:

9. Area of triangle= $\frac{1}{2} \times base\times height$

10. Base= 16 ft and Height= 15 ft.

11. 120 ft²

Step-by-step explanation:

Given: Base of triangle= 16 ft

Length of leg of triangle= 17 ft.

As shown in the picture that median has bisected the triangle and forming two right angle triangle.

∴ Each base of right angle triangle= $\frac{16}{2} = 8\ feet$

Now, finding the height of triangle by using pythagorean theorem.

We know, $h^{2} = a^{2} +b^{2}$ , where h is hypotenous, a is height or opposite and b is base or adjacent of triangle.

⇒ $17^{2}= a^{2} + 8^{2}$

⇒ $289= a^{2} + 64$

Subtracting both side by 64

⇒ $225= a^{2}$

taking square root on both side, remember; √a²=a

⇒a= $\sqrt{225} = 15$

Hence, height of triangle is 15 ft.

Next, finding the area of triangle.

Formula; Area of triangle= $\frac{1}{2} \times base\times height$

⇒ Area of triangle= $\frac{1}{2} \times 16\times 15$

∴ Area of triangle= 120 ft²

8 0

3 years ago

I NEED HELP now pls pls

just olya [345]

Pythagoras theorem ! (a²+b²=c²)

Q1) AC = √4.8²+3.6²
= √36
= 6cm

Q2) AB= √17.55² - 6.75²
= √262.44
= 16.2cm

Q3) BC= √14² - 6²
= √160
= 12.64911
= 12.6 cm (to 3sf)

7 0

2 years ago

Read 2 more answers

Write the numerical expression. 6 times the sum of 12 and 8. Write your answer with no spaces.

Murljashka [212]

Answer:

6(12+8)

Step-by-step explanation:

the word 'times' would indicate the multiplication of 2 numbers

the word 'sum' would indicate the addition of 2 numbers. in this case, 12 + 8 would be placed in parenthesis

hope this helps!! :)

7 0

2 years ago