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3 years ago

12a + 26b -4b – 16a.

Mathematics

2 answers:

vagabundo [1.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

Solving like terms

-4a + 22b

dexar [7]3 years ago

3 0

The correct answer is -4a+22b

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Four friends all use $10 off coupons to buy themselves concert tickets.

eimsori [14]

Answer:

$64

Step-by-step explanation:

Since there were 4 of them and the coupons were $10 off, they saved a total of $40

To find how much they would have spent without the coupons, add 40 to 216:

216 + 40

= 256

To find the normal cost of one ticket, divide this by 4:

256/4

= 64

So, the price of one concert ticket without the coupon is $64

5 0

3 years ago

Subtract 1/4w + 4 from 1/2w + 3

Aleks04 [339]

I think it should be w+28/4 if thats one of the answer choices.

4 0

3 years ago

If you take a number, times by 3 then add 5. You get the same as if you took the number, times by 7 then subtract 8. What is the

lana [24]

3x+5=7x-8
4x=13
x=13/4
the answer is 13/4

8 0

3 years ago

Find the value of x.<br><br> Please help

bekas [8.4K]

Answer:

86 degrees

Step-by-step explanation:

For triangle the sum of angles is equal to 180 degrees

so,

x+(x-35)+43=180

2x -35+43=180

2x = 180-43+35

2x = 172

x = 86

6 0

4 years ago

Read 2 more answers

The curved part of this figures is a semicircle.

vovangra [49]

First we join the two endpoints of the semicircle and that will be the diameter.

And to find the length of the diameter, we have to use distance formula, with one endpoint (3,2) and the other is (-4,-2) .

SO we get

$Diameter = \sqrt{ {-4-3)^2 +(-2-2)^2 } = \sqrt{49+16} = \sqrt 65$

Radius is half of diameter, so the radius is

$Radius= \frac{ \sqrt{65}}{2}$

Formula of area of circle is

$Area = \pi r^2$

So the area of semicircle is

$=(1/2) \pi ( \frac{ \sqrt{65}}{2})^2 = 8.125 \pi \square \units$

And the other figure is a triangle, with

$Base = 3-(-4)=3+4=7 \\ height = 2-(-2) = 2+2 =4$

$Area = (1/2)*4*7= 14 square units$

Therefore, total area is the sum of area of semicircle and area of triangle,

And we will get

$Total \ area= 14 + 8.125 \pi \ units^2$

Correct option is the third option .

3 0

4 years ago

Read 2 more answers