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Mamont248 [21]
2 years ago
15

Hi please help me with this i’ll give brainliest if you give a correct and show your work!

Mathematics
1 answer:
Tatiana [17]2 years ago
6 0
1. (1.35)x(.42)

1.35
x. .42
________
270
5400
________
.5670

You need to have the total number of decimal places from the original two numbers. 1.35 has two decimal places and .42 has to decimal places you have a total of four decimal places, Which means 5670 is .5670

2. (.22)x(.04)

.22
x. .04
_______
88
00
_______
.0088

you need to have the total number of decimal places from the original Two numbers. So .22 is two decimal places and .04 is two decimal places, so you will need to have for decimal places. That means that the answer 88 needs to be translated into .0088
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Y=-2х - 4 y=x - 5 how many solutions does this have​
spayn [35]

Answer:

one solution

Step-by-step explanation:

-2x - 4 = x - 5

-3x - 4 = -5

-3x = -1

x = 1/3

y = 1/3 - 5

y = 1/3 - 15/3

y = -14/3

(1/3, -14/3)

5 0
3 years ago
Which expressions represent rational numbers? Check all that apply.
Blizzard [7]

Answer:

they're all rational numbers

Step-by-step explanation:

rational numbers are positive, negative, or zero integers. they can be decimals as well.

first expression = 2.449.... + 3 = 5.449 (yes, it is rational)

second expression = 8 + 0.54545454... = 8.545454... (yes, it is rational)

third expression = 6 + 4.582575... = 10.4582575... (yes, it is rational)

fourth expression = 4 + 13 = 17 (yes, it is rational)

fifth expression = 17.43... + 7 = 24.43.... (yes, it is rational)

sixth expression = 6.6332... + 5 = 11.6332 (yes, it is rational)

8 0
2 years ago
A dog is standing 5ft from the base of a tree trying to catch a cat that is 16 ft up in the tree. What is the angle of elevation
evablogger [386]

Answer:

72.64°

Step-by-step explanation:

Tan θ 16/5

θ= tan-1 (16/5)

=72.64°

3 0
3 years ago
Please help! will give brainliest if right
asambeis [7]

Answer:

first option

Step-by-step explanation:

y = 1/4x - 5/4

this line has a slope of 1/4 and a y-intercept of -5/4

7 0
3 years ago
Read 2 more answers
The fact that the polynomial (3x^2+4x+5)+(2x+6) Fields a polynomial employs what property?
EleoNora [17]

Answer:

The fact that the polynomial (3x2+4x+5) + (2x+6) yields a poloynomial, employs what property?

Step-by-step explanation:

3 0
2 years ago
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