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2 years ago

(−7c+8d)0.6 write this as an equivalent equation

Mathematics

2 answers:

KengaRu [80]2 years ago

8 0

-4.2c+4.8d is the answer to this equation.

Alekssandra [29.7K]2 years ago

8 0

Answer:

Step-by-step explanation:

cs fSJDXWC dgfTDXfc fdJTX CV dgfSKJD

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Sara has a gift box with a volume of 64 in3. The length, width, and height of the box are all y inches. Sara needs to determine

antoniya [11.8K]

Answer:

No, the note papers will not fit the gift box.

Step-by-step explanation:

Given that:

Volume of the gift box = 64 $in^3$

Length, width and height of the box all are equal to $y$ inches.

Dimensions of note papers = 6 inch by 6 inch

To determine:

Whether the note papers will fit the bottom of the box?

Solution:

Here, we need to find the dimensions of the gift box first.

If the dimensions of gift box are greater than or equal to the dimensions of the note papers, only then the papers will fit into the box.

As per the given question statement, the gift box is in the form of a cube.

Formula for volume of a cube is given as:

$Volume = (Side)^3$

Side is given equal to $y$ inches.

$64 = y^3\\\Rightarrow y = 4\ in$

Dimensions of the box are lesser than that of the note papers.

Therefore, <em>the note papers will not fit into the gift box</em>.

6 0

2 years ago

a class conduct a survey of 1000 students At one point 6% of the students forgot their locker combination, how many forgot their

jek_recluse [69]

You need to multiply 1000 by 0.06 (6% in decimal form) to get the answer. When you multiply you get 60 so the answer is 60 students forgot their locker combination.

4 0

3 years ago

HELPPPPPPPPPPPP BRAINLY

AleksAgata [21]

Answer:

Step-by-step explanation:

6 0

2 years ago

The ratio of volume of a cone and a hemisphere of same base radius and height is?

aliya0001 [1]

Answer:

1/2

Step-by-step explanation:

Since it is given that the cone and the hemisphere have the same height, and since the height of a hemisphere would be equal to its radius, the cones height must also be equal to its base radius.

With this information we can use the respective volume formulas.

Hemisphere: $\frac{2}{3}$ πr^3

Cone: $\frac{1}{3}$ πhr^2

Since h (height) = r we can say the cone volume equals:

$\frac{1}{3}$ πr^3

Now to find the ratio we divide the cone volume equation by the hemisphere volume equation

pi and r^3 cancels out from the division and we are left with

ratio = (1/3)/(2/3)

ratio = 1/2

7 0

3 years ago

LAY

marta [7]

Answer:

Step-by-step explanation:

how long is the ball in the air ?

that is the same as asking : after how many seconds will the ball hit the ground (= reach the height of 0) ?

so, that means we need to find the zero solution of h(t).

at what t is h(t) = 0 ?

when at least one of the factors is 0 :

2(-2 - 4t)(2t - 5)

we have 3 factors

2 : can never be 0.

(-2 -4t) : can only be 0 for negative t, which does not make sense in our scenario (we cannot go back in time, only forward).

(2t - 5) : is 0 when 2t = 5 or t = 2.5

so, A is the right answer.

FYI : the starting height (on the hill) is given by t = 0 :

2(-2 - 0)(0 - 5) = 2×-2×-5 = 20 ft

3 0

2 years ago