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Inga [223]
3 years ago
11

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each triangle below with the value

of its missing side length. 30 9 25 20 29 15

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0

Answer:

30, 9, 15, 29

Step-by-step explanation:

Triangle 1, yellow

  • b= √34²- 16²= √900= 30

Triangle 2, blue

  • a= √41²- 40²= √81= 9

Triangle 3, green

  • c= √12²+9²= √225= 15

Triangle 4, red

  • c= √21²+20²= √841= 29
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If C = t - 5 and B = t^2 + 2, find an expression that equals 2C + 2B in standard<br> form.
adell [148]

Answer:

t² + t - 3 = 0

Step-by-step explanation:

C = t - 5

B = t² - 2

2C + 2B

= 2(t - 5) + 2(t² + 2)

= 2t - 10 + 2t² + 4

= 2t² + 2t - 6

=> t² + t - 3 = 0

8 0
2 years ago
Rewrite the quadratic function in vertex form.<br> Y=2x^2+4x-1
Fantom [35]

Answer:

\large\boxed{y=2(x+1)^2-3}

Step-by-step explanation:

The vertex form of an equation of a parabola:

y=a(x-h)^2+k

(h, k) - vertex

We have

y=2x^2+4x-1=2\left(x^2+2x-\dfrac{1}{2}\right)

We must use the formula: (a+b)^2=a^2+2ab+b^2\qquad(*)

2\left(x^2+2(x)(1)-\dfrac{1}{2}\right)=2\bigg(\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1^2-\dfrac{1}{2}\bigg)\\\\=2\left((x+1)^2-1-\dfrac{1}{2}\right)=2\left((x+1)^2-\dfrac{3}{2}\right)

Use the distributive formula a(b + c) = ab + ac

2(x+1)^2+2\left(-\dfrac{3}{2}\right)=2(x+1)^2-3

5 0
2 years ago
M divided by 3 - 6 = 4<br><br> show steps<br> find what m is
Elanso [62]

Answer:

m = 30

Step-by-step explanation:

(m/3) - 6 = 4

Add 6 to both sides

m/3 = 10

multiply both sides by 3

m = 30

4 0
2 years ago
Please Help! Here is the picture question can't be copied.
Ostrovityanka [42]

Answer is B. Becuz (4,096)1/3 equals to 16. And so does (16×16)1/2

4 0
2 years ago
An electrician disconnected 5 wires of different colors from their respective connections and forgot the order in which they wer
Inessa05 [86]

Answer:

120 tries

Step-by-step explanation:

You can try 5 different wires in the first connection.

Then you have 4 wires left, so you try 4 wires in the second connection. Remember, you are now trying 4 wires for each of the first 5, so up to here you already made 4 * 5 tries = 20 tries.

Next you try 3, then 2, then you have 1 left.

Number of tries: 5 * 4 * 3 * 2 * 1 = 120

Answer: 120 tries

8 0
3 years ago
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