3 years ago

Which expressions have a value equal to 22?

Mathematics

1 answer:

BabaBlast [244]3 years ago

3 0

Where are the expressions

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1. x^2 + 6x + 8 = 0 2. x^2 + 10x + 21 + 0 3. X^2 + 9x + 18 = 0

WARRIOR [948]

Answer:

545256

Step-by-step explanation:

8 0

2 years ago

8 sandwiches cost £18.40 Find the cost of 5 sandwiches.

Eduardwww [97]

Answer:

11.5

because

8 18.40

5 ?

5×18.40=92

92÷8=11.5

7 0

2 years ago

Read 2 more answers

Someone help please

Likurg_2 [28]

Which one do you need help with?

8 0

2 years ago

The total surface area of a cone whose radius is 2 r and slant height 2l is

vampirchik [111]

Answer:

$A=4\pi r(l+r)$

Step-by-step explanation:

The total surface area of a cone is given by :

$A=\pi rl+\pi r^2\\\\=\pi r(l+r)$

Put r = 2r and l = 2l in the above formula

$A=\pi \times 2r(2l+2r)\\\\A=2\pi r(2l+2r)\\\\=2\pi r \times 2(l+r)\\\\=4\pi r(l+r)$

Hence, the total surface area of the cone is $4\pi r(l+r)$ .

7 0

3 years ago

An airplane flies at a rate of 356 km/h. the plane travels a total distance of 1424 km. (use distance = rate * time for your equ

frozen [14]

Your distance is 1424 and your rate is 356. As you said, d = r*t. Since you don't have the time you would do 1424 divided by 356. This leaves you with a time of 4 hours. (Don't forget units!)

6 0

3 years ago