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3 years ago

First answer get brainliest

Mathematics

2 answers:

Mama L [17]3 years ago

7 0

Answer:

a. 63 times 9

Step-by-step explanation:

Tasya [4]3 years ago

6 0

Answer:

A. 63 × 9 = ?

plz mark brainliest

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PLEASE HELP ONLY HAVE OME HOUR TO COMPLETE!!!!

Anika [276]

Answer:

Step-by-step explanation:

To be a function x can't repeat with a different y so in a every element of x is mapped to a different y so it is a function.

For choice B, -4 is paired with both 7 and 8 so it is not a function.

Choice C is a function since each x is paired with a different y.

3 0

3 years ago

Point K is between points H and J, HK=x-5, KJ=5x-12, and HJ=25. Find the value of x

bija089 [108]

X-5 + 5x-12 = 25
combine like terms
6x-17 = 25
add 17
25 + 17 =42
6x + 42
x = 7

7 0

3 years ago

For any nonnegative real number.

frutty [35]

Answer:

Step-by-step explanation:

We know that $\sqrt{b}=b^{1/2}$ .

We also know that $(a^b)^c=a^{bc}$ .

We can combine these facts to get $(\sqrt{b})^2=(b^{1/2})^2=b^{1/2*2}=b^{1}=b$ .

So, the answer is $\boxed{A}$ and we're done!

<em>Note: the non-negative part or the equation comes from the fact that you assume the square root of a negative number doesn't exist. You will change this assumption later in the year, or in further years.</em>

5 0

3 years ago

Given R = 10 and theta = 1.15 pi, find the Cartesian coordinates.

love history [14]

We have been given that $r=10$ and $\theta =1.15\pi$ . We are asked to find the Cartesian coordinates.

We know that $x=r\cdot \text{cos}(\theta)$ and $y=r\cdot \text{sin}(\theta)$ .

Let us convert polar coordinates to Cartesian coordinates using above formula.

$x=10\cdot \text{cos}(1.15\pi)$

$x=10\cdot (-0.891006524188)$

$x=-8.91006524188$

Round to nearest hundredths:

$x\approx -8.91$

$y=10\cdot \text{sin}(1.15\pi)$

$y=10\cdot (-0.45399049974)$

$y=-4.5399049974$

Round to nearest hundredths:

$y\approx -4.54$

Therefore, the Cartesian coordinates will be $(-8.91,-4.54)$ and option 'b' is the correct choice.

3 0

3 years ago

The indoor pool has a temperature of 24 The outdoor pool has a temperature of 23 Which pool has a higher temperature And which p

Ludmilka [50]

Answer:

The indoor pool has a higher temperature and also has the greatest absolute value.

Step-by-step explanation:

The indoor pool has a higher temperature becasue 24 is greater than 23. It also has a bigger absolute value because the absolute value how much a number is from 0.

So the absolute value of 24 is 24.

The absolute value of 23 is 23.

24 is greater so the indoor pool also has a bigger absolute value.

7 0

3 years ago