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makkiz [27]
3 years ago
14

A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 90 m long and 66 m wide.

Mathematics
1 answer:
almond37 [142]3 years ago
6 0

I hope this helps you

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A graduated commission employee makes 3.5% interest on the first $50,000 in sales and 6.5% interest on all sales over $50,000. W
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7X-2=19<br> 7x=19+2<br> 7x=21<br> X=3<br> How do I verify this answer?
Arada [10]

Answer:

to verify this answer you need to substitute the answer you got for x

Step-by-step explanation:

7(3)-2=19

21-2=19

19=19

this means that you are correct

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Can someone please help me on number 3? (Number 4 too if you want to be named the brainliest)
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State if the triangles in each pair are similar. If so, state how they are similar and complete the similarity statement​.
cluponka [151]

Answer:

Δs DEF and DRQ not similar ⇒ 2nd answer

Step-by-step explanation:

Let us revise the cases of similarity

  1. AAA similarity : two triangles are similar if all three angles in the first  triangle equal the corresponding angle in the second triangle
  2. AA similarity : If two angles of one triangle are equal to the  corresponding angles of the other triangle, then the two triangles  are similar
  3. SSS similarity : If the corresponding sides of the two triangles are  proportional, then the two triangles are similar
  4. SAS similarity : In two triangles, if two sets of corresponding sides  are proportional and the included angles are equal then the two  triangles are similar.  

In triangles DEF and DRQ

∵ m∠EDF = m∠REQ ⇒ vertical opposite angles

∵ m∠E ≠ m∠R

∵ m∠F ≠ m∠Q

<em>Only one angle in the 1st triangle is equal to one angle in the other triangle, no other angles are equal, similarity needs at least two angles in one triangle equal to two angles in the other triangle </em>

∴ The two triangle are NOT similar by any case of similarity

∴ Δs DEF and DRQ not similar

6 0
3 years ago
I need help ASAP <br> 120&gt;10n+20
Burka [1]

Answer:n = 10 can make the inequality true

Step-by-step explanation:

The given inequality is

120 greater than or equal to 10n + 20. This means that the least value of n that would make the inequality true would be 10.

If we substitute n = 10 into the right hand side of the given inequality, it would result to 120.

So n = 10 can make the inequality true.

4 0
4 years ago
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