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valentinak56 [21]
4 years ago
11

Can someone help with the first question on he sheet thanks

Mathematics
1 answer:
Novay_Z [31]4 years ago
3 0
The first figure is a rectangle.  Rectangles are known for having four right angles.  Thus, one of the angles in this figure is 90 degrees.

The second figure is an equilateral triangle.  Because all its sides have the same length, the angles are all the same.  There is a principle stating that the sum of the 3 interior angles of a triangle is 180 degrees.  Thus, the measure of one of these 3 angles is 180 degrees   /   3   =   60 degrees.
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Write the word sentence as an inequality. Then solve the inequality. 3/4 is greater than or equal to a number k divided by -8
Novosadov [1.4K]

Answer:

  1. \frac{3}{4} \geq \frac{k}{-8}  
  2. k ≥ -6

Step-by-step explanation:

  1. Re-arrange: \frac{3}{4} \geq \frac{k}{-8}  
  2. Multiply each side by -8 to cancel out the -8 under k. It should now look like this: k ≥ -6

I hope this helps!

6 0
3 years ago
What is the simplest form of 4a + 8b/12​<br> Step by step pls
shutvik [7]

Answer:

4a + 2b/3

Step-by-step explanation:

focus on 8b/12 first:

factor 8b/12 by 4 ---> 8b/12 = 4(2)b/4(3) ----> cancel 4 in the denominator and the nominator ---> 8b/12 = 4(2)b/4(3) = 2b/3

then, go back to 4a:

4a is in its simplest form, it can't be factor

therefore, plus 4a and 2b/3 = 4a + 2b/3

5 0
3 years ago
P=−4b 2 +6b−9 <br> Q=7b 2 −2b−5<br> ​P−Q=<br> Your answer should be a polynomial in standard form.
shepuryov [24]

Answer:

−11b^2+8b−4

Step-by-step explanation:

−4b2+6b−9−7b2+2b+5

Simplify by adding terms.

11b2+8b−4

3 0
3 years ago
Alejandro solved the equation 5(7x^2-2)-8=3. He wrote 5(7x^2-2)=11 as his first step. Which property justifies his first step?
Scorpion4ik [409]
The addition property of equality. It says that if you add the same number to each side of the equation, the two sides of the equation will be equal. In this case, the number 8 was added to each side.

Hope this helps :)
3 0
4 years ago
Read 2 more answers
PLEASE HELP ME WITH THIS I NEED IT
sukhopar [10]

Answer:

1400π m³

Step-by-step explanation:

V = BH

V = 10² * π * 14 = 1400π m³

5 0
3 years ago
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