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oksano4ka [1.4K]
2 years ago
8

Simplify the expression. 3.2a + 3.5b – 2.1a

Mathematics
1 answer:
antiseptic1488 [7]2 years ago
7 0

Answer:

1.1a+3.5b

Step-by-step explanation:

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Please help on number 12 i don’t know how to do it
Ilia_Sergeevich [38]

Answer:

try using the point (1,13)

Step-by-step explanation: I pulled up and online graph to help and the distance from A to B is 7/2. So then you would do B, plus 7/2. If that's wrong, I'm sorry, but i tried.

6 0
4 years ago
The range of the function f(k) = k2 + 2k + 1 is {25, 64}. What is the function’s domain?
s344n2d4d5 [400]
{k^2 + 2k + 1 = 25, k^2 + 2k + 1 = 64}
{k^2 + 2k - 24 = 0, k^2 + 2k - 63 = 0}
{(k - 4)(k + 6) = 0, (k - 7)(k + 9) = 0}
{k = -6, 4, -9, 7)
Therefore, range = {-9, -6, 4, 7)
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3 years ago
Daniel makes 100 dollars each week. He worked for a weeks this summer.
Digiron [165]

Answer:

the number of weeks is unknown the A represents the number of weeks so the answer is 100a

7 0
3 years ago
Exercise 1: In the right triangle below, calculate the measurement of the unknown side. Show your work.
vekshin1

Answer:

Exercise 1:

base [b]=8cm

perpendicular [p]=6cm

hypotenuse [h]=?

<u>By</u><u> </u><u>using</u><u> </u><u>Pythagoras</u><u> </u><u>law</u>

h²=p²+b²

h²=6²+8²

h=√100

h=10cm

<u>So</u><u> </u><u>another</u><u> </u><u>side's</u><u> </u><u>length</u><u> </u><u>is</u><u> </u><u>1</u><u>0</u><u>c</u><u>m</u>

<u>Exercise</u><u> </u><u>2</u><u>:</u>

base [b]=6m

perpendicular [p]=bm

hypotenuse [h]=8m

By using Pythagoras law

h²=p²+b²

8²=b²+6²

b²=8²-6²

b=√28=2√7 0r 5.29 or 5.3

So height of kite is√<u>28</u><u>o</u><u>r</u><u> </u><u>2√7 0r 5.29 or 5.3 m</u>

Step-by-step explanation:

[Note: thanks for translating]

4 0
3 years ago
Whats 4-4+2-2-2-2 divided by 160 tines 20?
Alborosie
The answer is -2.25 bye!!!!!!!!!!!!!!!!!!!!!!!!!1
3 0
3 years ago
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