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2 years ago

(3rd grade question I’m helping my sister and I am stuck help)

Mathematics

1 answer:

goldenfox [79]2 years ago

3 0

Answer: See explanation.

Step-by-step explanation:

You need to put a little X on the graph down at the bottom on the ticks that represent 1/2, 3/4, 1 1/4, and 2.

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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

The radar beam sent out by an aeroplane reaches a distance of 120 kilometres and covers an angle of 150 degrees calculate the ar

Artemon [7]

Good luck and hope this helps

3 0

2 years ago

PLS HELP<br><br><br> Indicate if each of the following is a quadratic function or not.

My name is Ann [436]

Answer:

b and c

Step-by-step explanation:

quadratic equations produce u-shaped or upside-down u-shaped graphs

If you were to graph each of the equations you would see only 'b' and 'c' do that; also, they are the only equations where the x is squared (but not in the denominator) and y is not raised to a power

3 0

3 years ago

Read 2 more answers

Which property is shown (5×3)+(5×9)=5×(3+9)

mote1985 [20]

Resolve to do so
5x3=15
5x9=45
3+9=12
15+45=5x12
15+45=60
5x12=60
60=60
Which property is shown I did not understand but I think with the result 60 = 60 alone, but you will understand if you can not send me a comment, so I'll try to make you understand =)

8 0

3 years ago

Change 0.7 to a common fraction

erma4kov [3.2K]

Answer:

7/10

Step-by-step explanation:

In 0.7 we will change the decimal to fraction. First we will write the decimal without the decimal point as the numerator. Now in the denominator, write 1 followed by one zeros as there are 1 digit in the decimal part of the decimal number. Therefore, we observe that 0.7 (decimal) is converted to 7/10 (fraction).

3 0

3 years ago