Please answer. ✓✓✓✓✓✓✓✓✓✓✓✓

Mathematics

1 answer:

Molodets [167]3 years ago

8 0

It's c, a= -11.2....

You might be interested in

Your mom has 3 pieces of ribbon to use for a craft The measurements are 4/5 8/10 and 2/7 yards each how much ribbon does she hav

jonny [76]

Not sure but I think she has 1 31/35 yards of ribbon.

8 0

3 years ago

What number must be added to both sides of the equation to complete the square ?

77julia77 [94]

First consider (x+c)^2 where c is just a random constant. if we expand this by foil (which is distributive property twice), we get x^2 + 2cx+ c^2. we want to find c^2 and to do that, we can first find c. we can find c by looking at the 2cx term. this term should match with 12x, so therefore 2c = 12 so c = 6. this also implies that c^2 = 36.
note that for this problem i was working backwards which is a very powerful problem solving tool: start with what you want to attain, and then see how you can go from where you are now to get to your destination.

let me know if you have any questions!!!

7 0

3 years ago

when jane uses her calling card overseas, the cost of a phone call is .75 for the first three minutes and. 12 for each additiona

artcher [175]

26 minutes, would = 3.51. if you add .12 to that it is 3.63.
so the most that she could talk would be 26 minutes.

7 0

3 years ago

Plz help ill give u brainlist

adoni [48]

The problem tells you that a circle with radius 21 inches is painted in two colors. The two colors cover equal areas, so each color is half the area of the circle. You need to find half of the area of the circle. To do that, use the formula for the area of a circle, and then divide by 2.

$A = \pi r^2$

$A = 3.14 \times 21~ inches \times 21~inches$

$A = 1384.74~square ~inches$

Half the circle has area 1384.74 square inches / 2 = 692.37 square inches.

Answer: Each color covers 692.37 square inches.

4 0

4 years ago

Which relationships describe angles 1 and 2?

klasskru [66]

Answer:

picture?

Step-by-step explanation:

7 0

3 years ago