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3 years ago

1) Pattern A starts at 20 and has the rule "subtract 2". Pattern B starts at 20 and has

Mathematics

2 answers:

MatroZZZ [7]3 years ago

8 0

Answer:

PA: 20, 18, 16, 14, 12, 10

PB: 20, 19, 18, 17, 16, 15

(Pair 3)

Step-by-step explanation:

We need to look for a pair with both sides decreasing.

Pair 1 has the exact opposite of what we need happening. It has the sides increasing, so it is out.

Pair 2 has the Pattern A right, but Pattern B is still going up, so it is also out.

Pair 4 has both sides decreasing but the second term on Pattern A is 3 less than the first term when it should be 2. As a result it is also out.

This leaves Pair 3 as our final answer.

Daniel [21]3 years ago

5 0

20,18,16,14,12,10 is the answer

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THE table shows the number of pages blaine read for different times. How many pages will blaine read in 42 minutes?

Mkey [24]

Answer:

$126$ pages

Step-by-step explanation:

From the table, we know that Blaine can read $6$ pages in $2$ minutes. Therefore, Blaine can read $\frac{6}{2}=3$ pages per minute. Therefore, Blaine can read $42*3=126$ pages in $42$ minutes. Hope this helps!

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3 years ago

(3/5)^2+4X3-2 what is the value of the expression

Sliva [168]

Answer:

10.36

Step-by-step explanation:

So your solution would be:

$(\frac{3}{5})^{2} + 4 \times 3 - 2$

$=(\frac{3}{5})^{2} + 4 \times 3 - 2$

$=\dfrac{3^{2}}{5^{2}} + 4 \times 3 - 2$

$=\dfrac{9}{25} + 4 \times 3 - 2$

$=0.36 + 4 \times 3 - 2$

$=0.36 + 12 - 2$

$=12.36 - 2$

$=10.36$

Just try to remember PEMDAS.

Parenthesis, Exponent, Multiplication/Division, Addition/Subtraction.

This is the order we follow when going about expressions with many operations.

Let's start with the parenthesis part. Notice that there is an exponent beside the parenthesis enclosing the fraction. Here we use the quotient to a power rule. We distribute the exponent to the numerator and the denominator.

$=(\frac{3}{5})^{2} + 4 \times 3 - 2\\$

$=\dfrac{3^{2}}{5^{2}} + 4 \times 3 - 2$

$=\dfrac{9}{25} + 4 \times 3 - 2$

Now that we got the parenthesis and exponent out of the way, let's move on to the next. Multiplication/Division. Whichever comes first, you do it first.

We have a fraction so we do that first. Then we do the multiplication after.

$=0.36 + 4 \times 3 - 2$

$=0.36 + 12 - 2$

Next we do the addition/subtraction. Again, whichever comes first.

$=12.36 - 2$

$=10.36$

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4 years ago

The cosine ratio is used to find missing angle measures and side measures in

VashaNatasha [74]

... right triangles.

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4 years ago

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yanalaym [24]

I’m thinking your r in the first equation is actually an x.

X + 2(2x -4) =10

X +4x -8 =10

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4 0

3 years ago

Two consecutive positive integers have a product of 6. what are the integers

sergejj [24]

Hey there!

One way to do this is find all the factors of 6 and then see which pair fit the requirements.

The factors of 6 are 1, 2, 3, and 6. (Note: There can be negative factors, but I am going to leave them out since it is asking for positive integers.)

You can find them by asking if each number can go into 6.

1, 2, 3, and 6 all go into 6, while 4 and 5 do not.

The requirements we have is that they must be consecutive <u>and</u> have a product of 6.

Consecutive means right after one another.

The only numbers that fit this are 2 and 3.

2 x 3 = 6

Hope this helps!

6 0

3 years ago

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