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Marina CMI [18]
2 years ago
13

7.875 rounded to the nearest tenth

Mathematics
2 answers:
Marianna [84]2 years ago
8 0

Answer:

Step-by-step explanation:

easy, first, what is tenth?

don't be canfused with tens, which 2 numbers after point

tenth is the number comes after point

so it's 8, and we look the number to the right and it's 7

so 8  would become 9

so 7.900

and done!

IRISSAK [1]2 years ago
5 0
Find the number in the tenth place
8
8
and look one place to the right for the rounding digit
7
7
. Round up if this number is greater than or equal to
5
5
and round down if it is less than
5
5
.
7.9
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Iris wants to buy sneakers at $15 each and high heels at $30 each. Write an algebraic expression to find the total cost of the s
kogti [31]

Answer: 30y + 15x

If x is for sneakers, and y is for high heels, plug 15 in for a and 30 in for b. This means that x is how many sneakers she buys, and y is how many high heels she buys. The equation altogether represents the total amount of her purchases.

5 0
2 years ago
If RT = 6 and RS = 9, then RX =<br> A - sqrt(54)<br> B - 13.5<br> C - 7.2<br> D - 4
wolverine [178]

Answer:

Option D RX=4 units

Step-by-step explanation:

we know that

<em>In the right triangle RTS</em>

The cosine of angle TRS is equal to

cos(TRS)=RT/RS

substitute

cos(TRS)=6/9 -----> equation A

<em>In the right triangle RTX</em>

The cosine of angle TRX is equal to

cos(TRX)=RX/RT

substitute

cos(TRX)=RX/6 -----> equation B

∠TRS=∠TRX -----> is the same angle

Match equation A and equation B

6/9=RX/6

RX=6*6/9=4 units

5 0
3 years ago
Pls help... again
Rashid [163]

Answer:

c

9x^ - 30x - 25

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4 0
3 years ago
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Which of the following is the volume of a square pyramid with a base of 6 in and a height of 7 in?
Karolina [17]
Volume = 1/3*a^2*h
So, V = (36*7)/3
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3 0
3 years ago
A rectangular prism has a base that is 6 meters by 3.5 meters, and the prism is 9 meters high. What is the surface area of the p
galben [10]

Answer:

213 m^2

Step-by-step explanation:

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The heigth is 9 m

A = 2 ( 6*3.5 + 9* 6 + 9* 3.5)

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    = 2*(106.5)

    =213 m^2

3 0
3 years ago
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