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MariettaO [177]
3 years ago
11

Evaluate a-b if a=10 and b=-7​

Mathematics
1 answer:
Tomtit [17]3 years ago
7 0
10- -7 = 10 + 7 = 17!
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Help me on this question please​
Luba_88 [7]
Sorry hun I’ve never learned that
5 0
3 years ago
What number can go into 2470,121 and 45<br>​
Usimov [2.4K]

Answer:

Step-by-step explanation:

All of these numbers can be divided by 2, 3, 5, 7, 11, 13...

There is no whole number if you want to divide each number.

121 only goes into 1, 11, and 121. No other numbers have 11

45/2 = 22.5

45/3 = 15

45/5 = 9

2470/2 = 1235

2470/3 = 823.33333...

2470/5 = 494

121/2 = 60.5

121/3 = 40.33333...

121/5 = 24.2

4 0
3 years ago
Which function is the inverse of f(x) = -5x- 4?
almond37 [142]

Answer:

Inverse of  - 5 x - 4 = \frac{x + 4}{5}

Step-by-step explanation:

Let y = -5x-4

Swap y and x

x = -5y -4

Solve for y

x+4 = -5y

y=- \frac{x + 4}{5}  which is the inverse

3 0
2 years ago
the times that gym members spend on a treadmill are normally distributed with a mean of 20 min and a standard deviation of 8 min
Papessa [141]
<span>Given:
xbar = 20 min
standard deviation = 8 min
total sample = 240

Required:
how many gym members are expected to spend 4 min and 36 min on a treadmill today

Solution:
sd</span>² = (∑(x - xbar)²) / N - 1

there are 42 gym members at 4 minutes and 200 gym members in 36 minutes.
6 0
3 years ago
Consider the line y=- 2x+7.
iVinArrow [24]

Answer:

the slope is rhe same -2

Step-by-step explanation:

the slope is the opposite +1/2

3 0
3 years ago
Read 2 more answers
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