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4 years ago

What are the numbers called in a multiplication

Mathematics

2 answers:

igomit [66]4 years ago

4 0

The two numbers you multiply are called factors and the answer is called the product

mart [117]4 years ago

3 0

The numbers that are called in multiplication are called factors. Multiplying factors together will create a product.

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9. Water is added to two containers for 20 minutes. The equations below model the ounces of

Anit [1.1K]

Answer:

792 ounces

Step-by-step explanation:

At the time when the containers hold the same amount of water the value of y in the equations is the same, so

$\large 62x+48=-2x^2+80x+120$

Solve the quadratic equation:

$\large 62x+48=-2x^2+80x+120\Rightarrow 2x^2-80x-120+62x+48=0\\\\2x^2-18x-72=0\Rightarrow x=\frac{-(-18)\pm\sqrt{(-18)^2-4(2)(-72)}}{2*2}=\\\\=\frac{18\pm\sqrt{324+576}}{4}=\frac{18\pm\sqrt{900}}{4}=\frac{18\pm 30}{4}$

Take only the positive solution since x is positive (minutes)

$\large x=\frac{18+30}{4}=\frac{48}{4}=12$

Now, compute the amount of water y by replacing x = 12 in any of the two equations, for example in container A which is easier to calculate

y = 62(12) + 48 = 792

The correct answer is then 792 ounces

5 0

3 years ago

A footbridge is in the shape of an arc of a circle. the bridge is 10 ft tall and 27 ft long, horizontally. what is the radius of

lilavasa [31]

See the picture attached to better understand the problem

we know that
the bridge is 10 ft tall and 27 ft long, horizontally
so
BC=10 ft
DE=27 ft---------> DC=27/2----> 13.5 ft
DA=r (radius of the circle)
AC=r-10

Applying the Pythagoras Theorem
DA²=DC²+AC² ------> r²=13.5²+(r-10)²----> r²=182.25+r²-20r+100
20r=282.25--------> r=14.11 ft

the answer is
r=14.11 ft

4 0

4 years ago

In Amy’s garden, the ratio of herbs to vegetable plants is 5:2. If there are 40 herb plants, how many vegetable plants are in Am

Sauron [17]

Answer: 16

Step-by-step explanation: 40/5 is 8 and 2 times 8 is 16. 5:2=40:16

5 0

3 years ago

If Isaac were born four

lbvjy [14]

Step-by-step explanation:

I= (4 + x ) * 5 E= x

I: 52 more than Emma

(4+x) * 5 = x + 52

20 + 5x = x + 52

5x - x = 52 - 20

4x = 32

x = 8

so then

E= 8

I= 12 × 5 = 60

6 0

4 years ago

Evaluate the following expression for x = -1 and y = 2 X3-3(x+2y) Please help

zubka84 [21]

x = -1 e y = 2

x = -e y = 2

Figura geométrica

punto

Derivadas parciales

d/dx(2) = 0

d/dy(2) = 0

X3-3(x+2y)

X^3 - 3 (x + 2 y)

Figura geométrica

avión

Forma alternativa

-3 x + X^3 - 6 y

Raíz real

y = 1/6 (X^3 - 3 x)

Raíz

y = 1/6 (X^3 - 3 x)

Discriminante polinómico

Δ_X = -243 (x + 2 y)^2

3 0

3 years ago