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miss Akunina [59]
3 years ago
8

Please help I dont understand WILL GIVE BRAINLIEST

Mathematics
1 answer:
Mariulka [41]3 years ago
7 0
So for the first part
 n would need to be greater than 4 because anything equal to or lower than 4 would just put the equation to equal to or lower than 7... but you need it to be greater than

the second part is pretty simple, but still follows the same concept.

if you need 7 x (whatever) to be equal to 7
a and b would need to be the same number... and thats 1

this is because 7 x (1 over 1) would still be 7 <span />
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Please help me answer the question in the picture
zvonat [6]

Answer:

D. Y <u><</u> 2x - 1

Step-by-step explanation:

5 0
3 years ago
Determine the angle at the centre of a circle with radius 6.0 cm for an arc length of 8.0 cm.
sveta [45]

Answer:

Third option.

Step-by-step explanation:

You need to remember that the formula used to calculate the arc lenght is:

arc\ length=r C

Where "r" is the radius and "C" is the central angle in radians.

You need to solve for "C":

C=\frac{arc\ length}{r}

You know the radius and the arc lenght, therefore, you can substitute values to calculate the central angle in radians. Therefore, this is:

C=\frac{8.0cm}{6.0cm}

C=\frac{4}{3}radians

4 0
3 years ago
Jean and Sarah are buying tubs of ice cream. 2 scoops of ice cream are twice the price of 1 scoop of ice cream. Jean buys 4 tubs
liberstina [14]

Answer:

The answer is below

Step-by-step explanation:

Let x represent the cost of 1 scoop of ice cream. Since the cost of 2 scoops of ice cream are twice the price of 1 scoop of ice cream, therefore the cost of 2 scoops of ice cream = 2x

Jean buys 4 tubs with 2 scoops in them and 2 tubs with 1 scoop each. Therefore the money spent by Jean is:

Money spent by Jean = 4(2x) + 2(x) = 8x + 2x = 10x

Sarah buys 2 tubs of 2 scoops and 4 tubs of 1 scoop. The money spent by Sarah is:

Money spent by Sarah = 2(2x) + 4(x) = 4x + 4x = 8x

Sarah spends 2.50 € less than Jean. Therefore:

Money spent by Sarah = Money spent by Jean - 2.5

8x = 10x - 2.5

2x = 2.5

x = €1.25

Therefore the cost of 1 scoop of ice cream is €1.25, the cost of 2 scoops of ice cream is €2.50.

Money spent by Jean = 10x = 10(1.25) = €12.5

Money spent by Sarah = 8x = 8(1.25) = €10

3 0
3 years ago
If two straight lines intersect and one angle is 30 degrees what are the other three angles
mel-nik [20]
Easey peasy
oposite angle is equal
other angles are supplementary (supplementary means add to 180, and a straight line=180 so if you look at 2 lines intersecting and think for a little bit, you wiill see why)

oposite angle=30
other angle is adds to 180
30+other=180
subtract 30
other=150
other is oposite other other
other=other other
150=other other

angles are
150,30,150
3 0
3 years ago
Read 2 more answers
Mom made a pitcher of lemonade. The pitcher holds 16 cups. If Sam drinks one- half of the lemonade and Lilly drinks 2 cups , how
kakasveta [241]
The answer is 6 one half of the lemonade takes it down to 8 cups left and the minus another two.
8 0
3 years ago
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