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3 years ago

Help on this one please?

Mathematics

1 answer:

Yakvenalex [24]3 years ago

5 0

Answer:

The answer is 0.24.

Step-by-step explanation:

Hey there!

This question asks us to find products of two numbers given a table.

As we can see, we can find the product of each number if we separate them by whole integers and their decimal counterparts.

For instance, if we want to find the product of 0.8 and 1 using this table, we would find the cell that meets where 0.8 and 1 are together.

We see that the cell where 0.8 and 1 meet is 0.8, which is the product of the two values.

Therefore, if we want to find the value of the question mark, we just need to find the product of 0.8 and 0.3.

$0.8 \times 0.3 = \boxed{0.24}$

Therefore, the value for the question mark is 0.24.

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3 years ago

Read 2 more answers

Use the image to match the arc/angle measure.

IrinaK [193]

Answer:

The following measurements are:

$m\angle{STR}=23^\circ$ (Option #4)

$m{QT}=142^\circ$ (Option #7)

$mST=134^\circ$ (Option #5)

$mRQ=38^\circ$ (Option #2)

Step-by-step explanation:

To begin, we can find the measure of $\angle{STR}$ by applying the inscribed angle theorem: an angle θ inscribed in a circle is half of the central angle 2θ that subtends the same arc on the circle.

Since the intercepted arc (RS) is 46 degrees, we have:

$46=2\theta\\23=\theta$

Next, we can find the measure of arc QT using the same theorem. So,

$QT=2(71)\\QT=142$

Notice that the chord RT is actually a diameter. From the theorem about the inscribed angle including a diameter, we know that the intercepted arc will have a measure of $180^\circ$ . Since the arc ST is part of the arc RST, and we know RS is $46^\circ$ , we can set up and solve this equation: