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3 years ago

Explain how you can use multiplication to find the quotient 3/5 divided by 3/15. then evaluate the expression.

Mathematics

1 answer:

umka21 [38]3 years ago

4 0

Try cross multipling

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Find the 40th term in the arithmetic sequence: 4,2,0,-2........

navik [9.2K]

Answer:

-74

Step-by-step explanation:

6 0

3 years ago

Reflect the x axis A B C D

Ronch [10]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y ) , then

A (- 1, - 17 ) → A' (- 1, 17 )

B (0, - 12 ) → B' (0, 12 )

C (- 5, - 11 ) → C' (- 5, 11 )

D (- 6, - 16 ) → D' (- 6, 16 )

3 0

3 years ago

The square of X varies inversely as the square root of Y and directly as the variable M. When M = 27 and Y = 16, then X = 9. Fin

irakobra [83]

Answer:

$Y = 441$

Step-by-step explanation:

Given

M = 27 when Y = 16 and X = 9

Required

Find Y when M = 7 and X = 2

We start by getting the algebraic representation of the given statement

$X^2 \alpha \frac{1}{\sqrt Y} \alpha M$

Convert the variation to an equation; we have

$X^2 = \frac{KM}{\sqrt Y}$

<em>Where K is the constant of variation;</em>

When M = 27; Y = 16; X = 9, the expression becomes

$9^2 = \frac{K * 27}{\sqrt{16}}$

This gives

$81 = \frac{k * 27}{4}$

Make K the subject of formula

$K = \frac{81* 4}{27}$

$K = \frac{324}{27}$

$K = 12$

Solving for Y when M = 7 and X = 2

Recall that $X^2 = \frac{KM}{\sqrt Y}$

Substitute values for K, M and X

$2^2 = \frac{12 * 7}{\sqrt{Y}}$

$4 = \frac{84}{\sqrt{Y}}$

Take square of both sides

$4^2 = (\frac{84}{\sqrt{Y}})^2$

$16 = \frac{7056}{Y}$

Make Y the subject of formula

$Y = \frac{7056}{16}$

$Y = 441$

3 0

3 years ago

Help me pls pls pls

valina [46]

Answer:

Since the input values are -7/2 and 2. So the answer is C.

Step-by-step explanation:

Given that when x-value is substituted into the function, you get 19. So in order to find the input value (x), you have to make the function equals 19 :

$f(x) = 2 {x}^{2} + 3x + 5$

$let \: f(x) = 19$

$2 {x}^{2} + 3x + 5 = 19$

Next, you have to factorize it :

$2 {x}^{2} + 3x + 5 - 19 = 0$

$2 {x}^{2} + 3x - 14 = 0$

$2 {x}^{2} + 7x - 4x - 14 = 0$

$x(2x + 7) - 2(2x + 7) = 0$

$(x - 2)(2x + 7) = 0$

Lastly, solve it :

$x - 2 = 0$

$x = 2$

$2x + 7 = 0$

$x = - \frac{7}{2}$

4 0

3 years ago

Read 2 more answers

Somebody help please.

kiruha [24]

Answer:A

Step-by-step explanation: The formula for finding volume is LxWxH. 21x 11 is 231, and since one side is 11 so will the other side be, and then you get 2,541 m cubed.

7 0

3 years ago