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2 years ago

Geometry help please ASAP

Mathematics

1 answer:

____ [38]2 years ago

4 0

Answer:

861.56 km2

Step-by-step explanation:

the formula for the area of a trapazoid is

a= (a+b/2) + h

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What is the product (3a2 b4) (- 8b3)

Anvisha [2.4K]

Answer:

-24 a^2 b^7

Step-by-step explanation:

Simplify the following:

-8×3 a^2 b^4 b^3

Hint: | Combine products of like terms.

3 a^2 b^4 (-8) b^3 = 3 a^2 b^(4 + 3) (-8):

-8×3 a^2 b^(4 + 3)

Hint: | Evaluate 4 + 3.

4 + 3 = 7:

-8×3 a^2 b^7

Hint: | Multiply 3 and -8 together.

3 (-8) = -24:

Answer: -24 a^2 b^7

6 0

2 years ago

A rectangle has a width of 40 units and a length of 52 units. What is the length of the diagonals of the rectangle

Irina-Kira [14]

Answer:approximately 65.6

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Jackie is painting rocks. She paints 7 rocks blue. She paints fewer than 3 rocks red. How many rocks does jackie paint in all?

Salsk061 [2.6K]

Answer:

9 rocks

Step-by-step explanation:

6 0

2 years ago

7-41= (-15)+33= 62-84= (-26)-14=

Gala2k [10]

Answer:

-34

-22

-40

Explanation:

8 0

3 years ago

Chase has 3 gallons of a solution that is 30% antifeeze that he wants to use to winterize his car. How much pure antifreeze shou

makvit [3.9K]

Let x gallons be the amount of pure antifreeze that should be added to the 30% solution to produce a solution that is 65% antifreeze. Then the total amount of antifreeze solution will be x+3 gallons.

There are 30% of pure antifreeze in 3 gallons of solution, then

3 gallons - 100%,

a gallons - 30%,

where a gallons is the amount of pure antifreeze in given solution.

Mathematically,

$\dfrac{3}{a}=\dfrac{100}{30},\\ \\a=\dfrac{3\cdot 30}{100}=0.9\ gallons.$

Now in new solution there will be x+0.9 gallons of pure antefreeze.

x+3 gallons - 100%,

x+0.9 - 65%

$\dfrac{x+3}{x+0.9}=\dfrac{100}{65},\\ \\65(x+3)=100(x+0.9),\\ \\65x+195=100x+90,\\ \\35x=105,\\ \\x=3\ gallons.$

Answer: he should add 3 gallons of pure antifreeze.

8 0

2 years ago