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GenaCL600 [577]
2 years ago
12

How many odd numbers are greater than 30 and less than 40?

Mathematics
1 answer:
Lana71 [14]2 years ago
3 0

Answer:

5 odd numberis there 31,33,35,37,39

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alexandr1967 [171]

Answer:

you multiply

Step-by-step explanation:

multiple all the sides

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4) C

5) C

Step-by-step explanation:

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3 years ago
What is the product?<br> (-2x- 9y2 )(-4x-3)
lara [203]

Answer:

36xy^2 + 8x^2 + 27y^2 + 6x

Step-by-step explanation:

Use the FOIL method of multiplying binomials.

First term in each binomial: -2x * -4x = 8x^2

Outside terms: -2x * -3 = 6x

Inside terms: -9y^2 * -4x = 36xy^2

Last term in each binomial: -9y^2 * -3 = 27y^2

Now, rearrange the terms correctly. 36xy^2 + 8x^2 + 27y^2 + 6x

This is our final answer, since it can not be simplified any more.

4 0
3 years ago
HELPPPP PLEASEEE!!! I NEED HELPP
zhenek [66]

Answer:

≥≤ are used when the number is less/greater or equal than some thing.

>< are used when a number is strictly less/greater than some thing.

1) a number x is less than 0 or at least 3

A number x is less than 0 is written as: x < 0.

x is at least 3 is written as: x ≥ 3.

Then we can write the statement as:

x < 0  ∨ x ≥ 3.

where ∨ means "or"

2) a number x is less than or equal to 4 and greater than -1

x less than or equal to 4 is written as: x ≤ 4

x is greater than -1 is written as: x > - 1.

We can write the statement as:

-1 < x ≤ 4

3) a number x is less than 8 and greater than or equal to 5

x is less than 8 is written as: x < 8

x is greater than or equal to 5 is written as: x ≥ 5.

Then the statement can be written as:

5 ≤ x < 8,

6 0
2 years ago
Erica earned 14 last week and 20 hours this wk if she earns9 per hour how much
Vlad1618 [11]

Add total hours worked (14+20=34) and multiply by hourly pay rate($9)

34
x9
306

5 0
2 years ago
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