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3 years ago

EASY EXTRA POINTS HELP ASAP

Mathematics

2 answers:

jonny [76]3 years ago

6 0

Answer:

(1, -1)

Step-by-step explanation:

Shkiper50 [21]3 years ago

5 0

Answer:

(1,-1)

Step-by-step explanation:

The intersection of the two lines

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What is the value of x in the inequality 7x-26>=3(3x-2)

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Answer:

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The total cost after tax to repair Keisha’s iphone is represented by the expression 0.09(75h) + 75h, where h represents the numb

elena55 [62]

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4 years ago

Wayne is going to paint the side of the house shown in the diagram. What is the area that will be painted? Please explain how u

goblinko [34]

First find the area of the rectangle by multiplying the length and width of the rectangle, so 12 x25=300. Then find the area of the triangle, which is length x height/ 2. So 8 x 25=200/2=100. Then add the two answers together to get 400.

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3 years ago

What is the sum if the first 22 terms of the following series? 86 + 79 + 72 + 65 +58+...

Arturiano [62]

Seems to be an arythmetic sequence
Sn=[n(a1+an)]/2
where
Sn means sum of all terms up the nth term
n=number of terms
a1=first term
an=nth term

so from 86 to the 22th term is from a1 to a22

find teh sequence
miknus 7 each time
an=a1+d(n-1)
an=87-7(n-1)
find 22n term
a22=87-7(22-1)
a22=87-7(21)
a22=87-147
a22=-60

S22=[22(87-60)]/2
S22=[22(27)]/2
S22=594/2
S22=297

the sum is 297

5 0

3 years ago

Can someone please Help me?

Mila [183]

9514 1404 393

Answer:

see below

Step-by-step explanation:

It is easiest to compare the equations when they are written in the same form.

The first set can be written in slope-intercept form.

y = 2x +7

y = 2x +7 . . . . add 2x

These equations are identical, so have infinitely many solutions.

The second set can be written in standard form.

y +4x = -5

y +4x = -10

These equations differ only in their constant, so have no solutions.

The third set is already written in slope-intercept form. The equations have different slopes, so have exactly one solution.

5 0

3 years ago