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3 years ago

Which expression is equivalent to this expression? (-5cd-4)(2cd2)2

Mathematics

2 answers:

GarryVolchara [31]3 years ago

8 0

Answer: If the answer needs to be simplified, then the answer would be

-20c^2 d^3 - 16cd^2

Step-by-step explanation:

kykrilka [37]3 years ago

7 0

Answer:

-20c3

Step-by-step explanation:

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Solve for t: t ÷ 5 = 8

DIA [1.3K]

Answer:

Step-by-step explanation:

Equation is t÷5=8

first you multiply 5 on each to cancel it out

t÷5*5=8*5

solve to get

t=40

8 0

4 years ago

Oil prices are projected to increase by 50% by next March. A quart of oil currently costs $1.85. What is the projected cost of a

Zolol [24]

Answer:

$11.10 per gallon.

Step-by-step explanation:

There are 4 quarts in a gallon so the cost of a gallon of oil currently is 1.85×4=$7.40

If the gallon price of oil goes up 50% then our answer is: 7.40× $\frac{3}{2}$ = $\frac{22.2}{2}$ =11.1

The price of oil in March will be $11.10 per gallon.

6 0

3 years ago

Mika bought 9 rolls of film to take 180 pictures on a field trip. Some rolls had 36 exposures and the rest had 12 exposures. How

Juli2301 [7.4K]

The number of each type Mika bought =x = 6.8 rolls; y= 2.2 rolls.

<h3>Calculation using ratio</h3>

The number of rolls of film Mika bought = 9 rolls

The number of rolls that had 36 exposures = x

The number of rolls that had 12 exposures = y

The total number of exposures = 36 + 12 = 48

To find the exposure by one roll = 48/9 = 5.3

If one roll = 5.3 exposure

x roll = 36 exposure

Make x roll the subject of formula,

x roll = 36/5.3 = 6.8 rolls

If one roll = 5.3 exposure

y roll = 12 exposure

Make y roll the subject of formula,

y = 12/5.3 = 2.2 rolls

Therefore, the number of each type Mika bought = x = 6.8 rolls; y= 2.2 rolls.

Learn more about ratios here:

brainly.com/question/2328454

#SPJ1

6 0

2 years ago

Question 29 <br> Find the short leg<br> Plz help

Murljashka [212]

Answer:

Step-by-step explanation:

Since the triangle is right we can use the cosine ratio to find IR

cos60° = $\frac{adjacent}{hypotenuse}$ = $\frac{IR}{TR}$ = $\frac{IR}{14}$

Cross- multiply

IR = 14 × cos60° = 14 × 0.5 = 7

6 0

3 years ago

HELP!!!!<br> 2x+y= 20<br> 3x+4y= 40

bagirrra123 [75]

Answer:

(8,4)?

Step-by-step explanation:

3 0

3 years ago