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2 years ago

Help pleaseeeeeeeeeee

Mathematics

1 answer:

vova2212 [387]2 years ago

6 0

Answer:

B & C

Step-by-step explanation:

The two binomials are equal to zero to find the roots.

Hope this helps

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Alona [7]

Soln

here

weight = 30 kg

Force = weight × 10

= 30×10

= 300

Area = cm

= 100/100

= 1

now,

Pressure = Force/Area

= 300/1

= 300 pa.

3 0

3 years ago

Maggie's brother is three years younger than twice her age. The sum of their ages is 24 how old is maggie?

Vanyuwa [196]

The variable for Maggie will be M and 2x-3 be her younger brothers age (Twice her age). We then would turn this into an algebraic problem. (m+2x -3=24).

3x-3=24, we would add 3 to both sides (-3 and 24). 24 + 3 equals 27, we now have to divide -3x and 27 on both sides, which equals 9. (x=9)

6 0

3 years ago

Trigonometry

saul85 [17]

Answer:

9.7

Step-by-step explanation:

tan=opposite/adjacent

tan=9/adjacent

tan 43=9/x

x tan 43=9

0.9325x=9

0.9325x/0.9325=9/0.9325

=9.65

hence;

x=9.7

7 0

3 years ago

I have $1.00 in coins on my desk made up of nickels and dimes. I have 4 more dimes than nickels. How many nickels do I have?

Elena L [17]

Answer:12

Step-by-step explanation:

6 0

3 years ago

One side is 8 cm

musickatia [10]

Answer:

The mass of the cubic granite block is 1408 g .

Step-by-step explanation:

Formula

Volume of a cube = a³

Where a is the side of the cube .

$Density = \frac{Mass}{Volume}$

As given

one side of the cube is 8 cm .

(The figure is shown below.)

Thus

Put in the formula

Volume of a cubic granite block = 8 × 8 × 8

= 512 cm³

As given

The density of cube is 2.75 g/cm³.

Put in the formula

$2.75 = \frac{Mass}{512}$

Mass = 2.75 × 512

Mass = 1408 g

Therefore the mass of the cubic granite block is 1408 g .

8 0

3 years ago