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2 years ago

A sorveteria “Que calor” vendeu 70 picolés e faturou R$ 100,00.Que sistema de equações do 1º grau melhor traduz essa situação?

Mathematics

1 answer:

tekilochka [14]2 years ago

8 0

Answer:

Step-by-step explanation:

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A line passes through the point 2, -3 and has a slope of 9

Anton [14]

Answer:

Y=9x-21

Step-by-step explanation:

6 0

2 years ago

Which set of lengths are not the side lengths of a right triangle? (A-28, 45, 53) (B-13, 84, 85) (C-36, 77, 85) (D-16, 61, 65) [

nikklg [1K]

Side lengths 16, 61, and 65 are not part of a right triangle.

A right triangle's sides should follow this formula, C being the largest number:

$a^{2} + b ^{2} = c^{2}$

$16^{2} = 256$

$61^{2} = 3721$

$65^{2} = 4225$

256 + 3721 = 3977

$3977 \neq 4225$

6 0

2 years ago

Find the surface area of the figure?

motikmotik

Step-by-step explanation:

the surface area consists of 6 individual areas :

front and back (both are equal)

left and right (both are equal)

top and bottom

front and back are trapezoids.

the area of a trapezoid is

(base 1 + base 2)/2 × h

the bases are the 2 parallel sides.

in our case the area of one trapezoid is

(5 + 19)/2 × 12.1 = 145.2 ft²

front and back together then are 290.4 ft².

left and right are 8×14 rectangles:

8×14 = 112 ft²

together they are 224 ft².

the bottom is a 5×8 rectangle :

5×8 = 40 ft²

the top is a 19×8 rectangle :

19×8 = 152 ft²

so, the total surface area is

290.4 + 224 + 40 + 152 = 706.4 ft²

4 0

1 year ago

Which migonometric rates are comect for mangle ABC? Select three options

aleksklad [387]

Answer:

semoga jawapan ini dapat membantu

6 0

2 years ago

-4= 7x-(-1) / -8 Solve for x (Solving multi step equations)

Evgen [1.6K]

Multiply both sides by -8.
Then add the one to both side to cancel it out and get 7x by itself
Then divide the whole thing by 7. So it’ll look like this: 32+1=7x and then add the one then divide by 7

4 0

2 years ago