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3 years ago

Hurry in test Brainliest!!!

Mathematics

1 answer:

tamaranim1 [39]3 years ago

5 0

Answer:

Step-by-step explanation:

m = $\frac{y_{2} - y_{1} }{x_{2} -x_{1} }$

(- 2, - 10)

(4 , - 4)

m = $\frac{-4+10}{4+2}$ = 1

y + 4 = (x - 4) ⇒ <em>y = (x - 4) - 4</em>

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you buy popcorn and a soda at the movies. A large popcorn is $7.00 and a drink is $3.50. Tax is 6%. How much will you pay?

Jobisdone [24]

Answer:

$11.13

Step-by-step explanation:

$7.00 + $3.50 = $10.50

6% of $10.50 is $0.63

$10.50 + 0.63 = $11.13

6 0

3 years ago

PLEASE HELP!

IrinaVladis [17]

Answer:

Step-by-step explanation:

<h3>Sphere:</h3>

1) a) r = 7 cm

$\sf \boxed{\text{Volume of sphere=$\dfrac{4}{3}\pi r^3$}}$

$\sf =\dfrac{4}{3}*3.14*7*7*7\\\\= 1436 \ cm^3$

$\sf \boxed{\text{\bf Surface area of sphere = $4\pi r^2$}}$

= 4*3.14 * 7 * 7

= 615.44 cm²

b) r= 8.4 cm

$Volume = \dfrac{4}{3}\pi r^3$

$\sf =\dfrac{4}{3}*\dfrac{22}{7}*8.4*8.4*8.4\\\\= 2483.7 \ cm^3$

Surface area = 4*3.14*8.4*8.4

= 887.04 cm²

<h3>Hemisphere:</h3>

a) r = 6 cm

$\sf \boxed{\text{\bf Volume of hemisphere =$\dfrac{2}{3} \pi r^3$}}$

$\sf =\dfrac{2}{3}*3.14*6*6*6\\\\= 452.16 \ cm^3$

$\sf \boxed{\text{\bf Surface area of hemisphere=3 \pi r^2}}$ $\sf \boxed{\text{\bf Surface area of hemisphere = $3 \pi r^2$}}$

= 3 * 3.14 * 6 * 6

= 339.12 cm²

3 0

2 years ago

Plz plz help is for my brother his in first grade

Mkey [24]

4+2 = 6 a a a a + a a = a a a a a a

2+4 = 6 a a + a a a a= a a a a a a

Tommy is correct They are both equal to 6

7 0

3 years ago

Read 2 more answers

The area of a square is 81 centimeters find the length of the length find the diagonal

EleoNora [17]

Length = √area = √81 = 9

diagonal = √2 * side = √2*9 = 9√2

5 0

3 years ago

Rewrite each expression by combining like terms.

Evgesh-ka [11]

Answer:

5y-2xy

6q-6

Step-by-step explanation:

For the first expression, we can multiply 5 by y to get 5y. Thats all we can simplify it though, because xy is not equal to x or y.

For the second equation, we can easily add the variables to simplify. 6q-6

Hope this helps!

4 0

3 years ago

Read 2 more answers