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guapka [62]
3 years ago
13

Math 7 Grade 7

Mathematics
2 answers:
OleMash [197]3 years ago
8 0
The conclusion is valid
it is a systematic random sample
and the second one is a line graph (I think)
Ostrovityanka [42]3 years ago
3 0
The conclusion is a valid conclusion
it's a systematic random sample
the second one is a line graph
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Which expressions are equivalent to 7 (negative three-fourths x minus 3)? Select two options.
polet [3.4K]

<em><u>The equivalent expressions are:</u></em>

7(-\frac{3}{4}x - 3) = (7 \times \frac{-3}{4}x) + (7 \times -3)\\\\7(-\frac{3}{4}x - 3) = \frac{-21x}{4} - 21

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

7(-\frac{3}{4}x - 3)

We have to find the equivalent expressions

By distributive property,

a(b + c) = ab + ac

Therefore,

7(-\frac{3}{4}x - 3) = (7 \times \frac{-3}{4}x) + (7 \times -3)\\\\7(-\frac{3}{4}x - 3) = \frac{-21x}{4} - 21

Thus equivalent expressions are found

7 0
3 years ago
Read 2 more answers
a rocket is 1 mile above thw earth in 30 seconds and 5 miles above the earth in 2.5 minutes what is the rockets rate of change i
Veronika [31]
Rate of Change:

At 1 mile in 30 seconds.
At  5 miles in 2.5 minutes.  2.5 minutes = 2.5*60 = 150 seconds.

Rate of change =   Change in height / Change in time

                            =   (h₂-h₁)/(t₂-t₁)

                            =   (5 -1) /(150 -30) = 4/120 = (1/30) = 0.0333 miles per second.

                             = (1/30) miles per second or 0.0333 miles per second.


To have the answer in miles per minute.

         (1/30) miles per second = (1/30) miles/second.

60 seconds = 1minute
1 second = (1/60) minute.

(1/30) miles/second  =  (1/30) miles/(1/60)minute
                                   =   (1/30) *60 miles / minute
                                   =    2 miles per minute.
8 0
3 years ago
Maia's calculator displays a number as 9.125 E10. What is this number in standard form?
melomori [17]
9.125 E10 is the same as 9.125 × 10¹⁰ in standard form. 
4 0
3 years ago
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Given 2x - y = 6, solve for y.
Nookie1986 [14]
0 is the correct is answer only if x=3
6 0
3 years ago
Given circle U with diameter ST and radius UQ. QR is tangent to U at Q. If
vfiekz [6]

Answer:

QT = 18

Step-by-step explanation:

4 0
3 years ago
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