3 years ago

If pqr = 1 , rst = 0 , and spr = 0, which of the following must be zero?

1 answer:

8 0

P,Q,R can't be 0, because their product is nonzero. Either of S and T could be 0, but the third one only works if S is 0.

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Students are making ornaments and each takes 1 2 of a piece of Bristol board. They go to the cupboard and find 1 1 2 pieces of B

s2008m [1.1K]

Answer: 3

Step-by-step explanation:

Feom the question, we are informed that students are making ornaments and each takes 1/2 of a piece of Bristol board and that they go to the cupboard and find 1 1/2 pieces of Bristol board.

The number of ornaments that they can make will be calculated by dividing 1 1/2 by 1/2. This will be:

= 1 1/2 ÷ 1/2

= 3/2 ÷ 1/2

= 3/2 × 2/1

= 3

They can make 3 ornaments

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3 years ago

Solve for x pls help

pashok25 [27]

Answer:

x = 13

Step-by-step explanation:

In a triangle, all the angles equal 180 so

2x + 5x - 7 + 6x + 18 = 180

combine like terms

13x + 11 = 180

13x = 169

x = 13

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3 years ago

What will the 6% sales tax be on purchases totalling $145.50?

r-ruslan [8.4K]

Simply find 6% of $145.50

That is 6/100 * 145.5

= 0.06 * 145.5. Use a calculator

= 8.73.

Sales tax is $8.73. C.

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4 years ago

Translate then simplify <br><br> A number n decreased by the difference nine and the number

Sphinxa [80]

Answer:

Step-by-step explanation

x-(9-x)

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3 years ago

g Suppose that a temperature is represented by the random variable X, whose units are in Rankine, with standard deviation 6 Rank

Elenna [48]

$x$ degrees Rankine is about $\dfrac59x-\dfrac{5463}{20}$ degrees Celsius, so that

$Y=\dfrac59X-\dfrac{5463}{20}$

The variance of $Y$ is

$\mathrm{Var}[Y]=\mathrm{Var}\left[\dfrac59X-\dfrac{5463}{20}\right]=\dfrac{25}{81}\mathrm{Var}[X]=\dfrac{100}9\approx\boxed{11.1}$

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4 years ago