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4 years ago

What ratio is equivalent to the ratio 18:24

Mathematics

1 answer:

Lana71 [14]4 years ago

3 0

Answer:

3/4

Step-by-step explanation:

18:24=18/24

18/24 reduces to 3/4

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Please last one tysmmmm it’s just a basic simplify one

Ne4ueva [31]

Expand the brackets by multiplying everything in the brackets by 4
4x+4-2x
simplify
2x+4

3 0

3 years ago

Which is the best approximation for the value 140

zzz [600]

140 is a composite number. Factor pairs: 140 = 1 x 140, 2 x 70, 4 x 35, 5 x 28, 7 x 20, 10 x 14. Factors of 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140. Prime factorization: 140 = 2 x 2 x 5 x 7, which can also be written 140 = 2² x 5 x 7

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3 years ago

(a-7)(a-3) as a function

stiv31 [10]

Answer:

a^2 −10a+21

Step-by-step explanation:

(a−7)(a−3)

Apply the distributive property by multiplying each term of a−7 by each term of a−3.

a^2 −3a−7a+21

Combine −3a and −7a to get −10a.

a^2 −10a+21

7 0

3 years ago

3+ Зу – 1+y ,ASAP please help

Fiesta28 [93]

Answer:

Step-by-step explanation:

Brainliest me pls

Have a nice day!

6 0

3 years ago

Use the intercepts of the following quadratic curve to find its graph.y = -1/2x^2 -3/2x+2

Solnce55 [7]

The correct graph is fourth option

Explanation: $\begin{gathered} \text{The quadratic function:} \\ \text{y = }\frac{-1}{2}x^2\text{ - }\frac{3}{2}x\text{ + 2} \end{gathered}$

Using the intercepts: we have x-intercept and y-intercept

To get x intercept, we will equate the function to zero. That is y = 0

$\begin{gathered} 0\text{ = }\frac{-1}{2}x^2\text{ - }\frac{3}{2}x\text{ + 2} \\ mu\text{ltiply through by 2:} \\ 0=-x^2\text{ - 3x + 4} \\ x^2\text{ + 3x - 4 = 0} \\ x^2\text{ - x + 4x - 4 = 0} \\ x(x\text{- 1) +4(x - 1) = 0} \\ (x\text{ + 4)(x - 1) = 0} \\ x+4\text{ = 0 or x - 1 = 0} \\ x\text{ = -4 or x = 1} \end{gathered}$

x intercepts are x = -4 and x = 1

This means the line will cross the x axis at two points: x = -4 and x = 1

To get y-intercept, we will equate x to zero:

$\begin{gathered} \text{y = }\frac{-1}{2}(0)^2\text{ - }\frac{3}{2}(0)\text{ + 2} \\ y\text{ = 0 - 0 + 2} \\ y\text{ = 2} \end{gathered}$

y-intercept = 2

This means the line will cross the y axis at y = 2

The correct graph is fourth option

8 0

1 year ago