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2 years ago

Help please I'm begging

Mathematics

2 answers:

zmey [24]2 years ago

8 0

Answer:

Step-by-step explanation:

kupik [55]2 years ago

6 0

Answer:

Step-by-step explanation:

The elements or numbers in A are all prime numbers and the number in B is a square number. Square root of 16 is 4

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Hadley paddled a canoe 2/3 mile in 1/4 hour. How fast did Hadley paddle, in miles per hour?

irina [24]

Answer:

Step-by-step explanation:

Hadley paddled a canoe 2/3 mile in 1/4 hour. it will be 4 times more in an hour because 1/4*4=4/4=1. 2/3*4=8/3=2 2/3

8 0

3 years ago

If your bike 8 miles south and then 6 miles east, what is the distance you are from your starting point?

Lady bird [3.3K]

Answer:

<em>14 miles</em>

Step-by-step explanation:

It's still 14 miles no matter which way you go.

8 0

3 years ago

Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

4 years ago

Which of the following is the cube root of -64/243

lilavasa [31]

Answer:

-(4/7)

if you are above 11th standard

4/7i

4 0

3 years ago

Find the inverse of the function f(x) =x^2-5. Is the inverse a function?

Mariana [72]

Y=x^2-5, solve for x

y+5=x^2

x=√(y+5) so

f^-1(x)=√(y+5)

8 0

3 years ago

Help please I'm begging​

Help please I'm begging