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1 year ago

Hellllpppp plsssss just click the picture then you see it

Mathematics

2 answers:

Solnce55 [7]1 year ago

6 0

Answer:

1. 8 + 13 = 13 + 8.

2. 6 + ( 12 + 4) = 6 + ( 4 + 12).

Step-by-step explanation:

aliina [53]1 year ago

4 0

Answer:

The Commutative Property of Addition is changing the order of the numbers to get the sum, but not changing the actual sum itself.

The Associative Property of Addition is the allowance of being able to re-group numbers and still get the same sum, or answer.

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What’s 10-8+434+87+64

attashe74 [19]

It is 587
i trust my calculator

5 0

2 years ago

Read 2 more answers

Rob has a 2-liter bottle of iced tea. He poured an equal amount of the iced tea into 8 containers. How many milliliters did Rob

Anastasy [175]

250, because 2000÷8=250

3 0

2 years ago

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The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

4 0

3 years ago

Can someone help meee please

hoa [83]

Answer:

Equation → 5y = 3y + 6

Value of ST = 15

Step-by-step explanation:

From the picture attached,

In right triangles ΔVST and ΔVUT,

Acute angles ∠SVT ≅ ∠UVT [Given]

TV ≅ TV [By reflexive property of congruence]

ΔVST ≅ ΔVUT [Hypotenuse angle congruence of right triangles]

Therefore, corresponding parts of the congruent triangles are congruent.

Therefore, ST ≅ TU

5y = 3y + 6

5y - 3y = 6

2y = 6

y = 3

Therefore, ST = 5y

ST = 5(3)

= 15

8 0

2 years ago

If the math club collected 17,604 points and gave away 36 shirts, how many points were collected if 82 shirts were given away?

luda_lava [24]

17,604 points/36 shirts=<span>489 points per shirt
</span>82 shirts*489 points=<span>40,098 points</span>

4 0

2 years ago