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rosijanka [135]
3 years ago
10

Which equation can be used to find the value of b if side a measures 8.7 cm?

Mathematics
1 answer:
nikitadnepr [17]3 years ago
4 0

Answer:

8.7 plus b equals 54.6

Step-by-step explanation:

if a is 8.7 it makes that 8.7 plus b equals 54.6

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What is the area of shape below NEED HELP NOWWW
balandron [24]

Answer:

<h2> 15 units{}^{2}</h2>

Step-by-step explanation:

Given figure : Trapezium

Upper base of trapezium ( b1 ) = 7

Lower base ( b2 ) = 3

Height ( h ) = 3

Now, finding the area of trapezium:

\frac{1}{2} (b1 + b2)h

Plugging the values

\frac{1}{2}  \times (7 + 3) \times 3

Calculate the sum

\frac{1}{2}  \times 10 \times 3

Reduce the numbers with G.C.F 2

5 \times 3

Calculate the product

= 15 \:  {units}^{2}

Hope this helps..

Best regards!

4 0
4 years ago
Help please idk what im doing wrong
Musya8 [376]
From what I can see, you are on the right track.

one thing you could have done is combine like terms.
{10}^{2}  -  {3}^{2}  =  {7}^{2}

Now just take the square root of 7 squared. That takes out the squared making your answer 7 or G.

You were on the right track, you just skipped a step.

hope this helped!
6 0
3 years ago
An arc that measures 180 degrees is called a
Aleks04 [339]
An arc that measures 180 degrees is called a semicircle.

If it measures less than 180 it’s a minor arc.

If it measures greater than that it’s called a major arc
6 0
3 years ago
A rectangle has a<br> perimeter of 20 cm.<br> Its longest side is 6 cm.<br> What is its area?
melamori03 [73]

Answer:

\boxed {24 cm^{2}}

Step-by-step explanation:

<u>Finding the smaller side</u> :

⇒ P = 2(l + w)

⇒ 20 = 2(6 + w)

⇒ 6 + w = 10

⇒ w = 4 cm

<u>Finding area</u> :

⇒ 6 × 4

⇒ 24 cm²

8 0
2 years ago
Read 2 more answers
N a 30°-60°-90° triangle, the length of the hypotenuse is 30. Find the length of the shorter leg.
SVETLANKA909090 [29]
15 is the length of the shorter leg
4 0
3 years ago
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