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gayaneshka [121]
4 years ago
9

Evaluate the algebraic expressions, and put their values in order from least (1) to greatest (4), for a = 2 and b = 5. 1.50 − b2

+ a 2.a2(5 − b) 3.b2 − 10 4.a(b − 3)
Mathematics
1 answer:
Aneli [31]4 years ago
8 0

Is it possible to add a picture to this

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An angle measures 66.4º more than the measure of its complementary angle. What is the
maxonik [38]

Answer:

11.8° and 78.2°

Step-by-step explanation:

let the angles be x and x + 66.4

complementary angles sum to 90° , then

x + x + 66.4 = 90

2x + 66.4 = 90 ( subtract 66.4 from both sides )

2x = 23.6 ( divide both sides by 2 )

x = 11.8 and

x + 66.4 = 11.8 + 66.4 = 78.2

The 2 angles are 11.8° and 78.2°

5 0
3 years ago
Please help! I need an answer fast!
Rashid [163]
<u><em>To find the answer,Divide 20 by 5 and you get</em></u>
<u><em>C.4.8
Good luck!
</em></u>
3 0
4 years ago
Read 2 more answers
Consider this system of two linear equations.
katen-ka-za [31]

Answer:

Step-by-step explanation:

so these two lines cross at some point.. and they want to know the y point at which they cross... sooo..

solve them as a system to find the points that are common to both

Eq. 1)  5x -2y = 16

Eq. 2) -4x+6y=-15

i'll use the elimination method as these equations "lend" themselves to that way.. they are easy to solve that way .. in other words..

multiply Eq. 1 by 3  the add Eq. 2 .. to it... add the terms as columns....

    15x-6y = 48

<u> + ( -4x+6y=-15)</u>

=    11x+ 0y =33

x=3    

nice, now plug 3 in for x in one of the Eq.   try Eq. 1

5(3)-2y=16

15-2y=16

-2y =1

y = -\frac{1}{2}

since we're looking for the y coordinate...  that's your answer -\frac{1}{2}

4 0
3 years ago
Tim's phone service charges $24.07 plus an additional $0.17 for each text message sent per month. If Tim's phone bill was $28.32
valkas [14]

I'm pretty sure it would be C


because 0.17 is how much he has to pay for each message sent and if x is the total messages he sends then it should be 0.17X+24.07

6 0
3 years ago
Read 2 more answers
7/8 - 1/2. Answer has to be simplified and show how to simplify
drek231 [11]

Answer:

3/8

Step-by-step explanation:

7/8-1/2=

7/8+ -1/2 (1 is negative)

= 7/8+-4/8(4 is negative)

=7+-4

_______=3/8

    8

6 0
3 years ago
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