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dangina [55]
3 years ago
7

8+0=8 describe the number sentence

Mathematics
2 answers:
Wittaler [7]3 years ago
8 0
Whatever is adding with 0 its that number its like mulitipulcation with 1 because whatever is times by one like 25x1= 25
DanielleElmas [232]3 years ago
5 0
First you add 0 to to eight and there is your awnser  √√√√√√
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What are the odds of choosing a red marble from a bag that contains two blue marbles, one green marble and four red marbles?
Ierofanga [76]

Answer:

4/7.

Step-by-step explanation:

This the question in which marbles have to be taken out of a bag. Odds in another word for probability.

Total number of marbles in the bag = 2 Blue + 1 Green + 4 Red = 7 marbles.

Required marbles = 3 red marbles.

Therefore:

P (a red marble is selected in the first attempt) = Red Marbles / Total Marbles.

P (a red marble is selected in the first attempt) = 4/7.

Therefore, the correct answer is 4/7!!!

8 0
3 years ago
What is the length of side PR? <br><br> Look at pic to see. PLSSS helpp it’s for a test!!
mrs_skeptik [129]

Answer:

D

Step-by-step explanation:

Pythagoras theorem

the square of the hypotenuse= (adjacent) square +(opposite) square

7 0
3 years ago
CAN SOMEONE HELP (AND HELP ME UNDERSTAND)
Mama L [17]
Consider angle XZY in the attached figure. It is always 1/2 the measure of arc XY, no matter where Z may be located on the major arc XZY. This is true even when ZY is very short.

Now, consider what happens when Z falls on top of tangent point Y. The angle is still half the measure of arc XY, still 62°.

Selection C is appropriate.

_____
I apologize for any confusion caused by my choice of Z as the name of the point I added. Nothing in my explanation is intended to refer to the Z already shown in the unmodified figure.

5 0
3 years ago
Combine the like terms to make a simpler expression: 5k (-2k)-(-1)
TiliK225 [7]
Hey there, Lets solve this problem together. 

Our first step will be to g<span>ather like terms 

</span>5*-2k*k+1 
<span>
 Simplify 5×−2k×k to −5×2k×k

</span>-5*2k*k+1 

Simplify <span><span>5×2k×k</span></span><span> to </span><span><span>10<span>k^2 

</span></span></span>-10k^2+1 <span><span><span>
</span></span></span>
7 0
3 years ago
Read 2 more answers
Which value of b would make x²+bx-30 factorable?<br> A. -31<br> B. -17<br> C. 11<br> D. 13
dimulka [17.4K]

Answer:

D. 13

Step-by-step explanation:

well since it's a quadratic equation, it can be written in the form of ax²+bx+c=0. So we have a=1, b=b and c= -30. Also the roots are given by the equation-

x= -b±\sqrt{b^{2}-4ac} /2a. So all I did was put the number from the choices which would satisfy the sqrt part and that turned out to be 13 since \sqrt{13^{2}-4*1*(-30) = \sqrt{289} = 17. So b=13.

5 0
3 years ago
Read 2 more answers
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