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3 years ago

The line with the slope m=-7 and passes through (-4,6)

Mathematics

1 answer:

ss7ja [257]3 years ago

6 0

Answer:

y=-7x-22

Step-by-step explanation:

y-y1=m(x-x1)

y-6=-7(x-(-4))

y-6=-7(x+4)

y=-7x-28+6

y=-7x-22

Please mark me as Brainliest if you're satisfied with the answer.

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How do i find the volume of these similar solids? round to the nearest tenth HELP

FromTheMoon [43]

Answer:

The volume of the larger solid is $592.6\ mm^3$

Step-by-step explanation:

The question is

If these solids are similar, find the volume of the larger solid

step 1

Find the scale factor

we know that

If two solids are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

x ----> the height of the larger solid in mm

y ----> the height of the smaller solid in mm

z ---> the scale factor

$z=\frac{x}{y}$

we have

$x=4\ mm\\y=3\ mm$

substitute

$z=\frac{4}{3}$ ---> scale factor

step 2

Find the volume of the larger solid

we know that

If two solids are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

x ----> the volume of the larger solid in cubic millimeters

y ----> the volume of the smaller solid in in cubic millimeters

z ---> the scale factor

$z^3=\frac{x}{y}$

we have

$z=\frac{4}{3}$

$y=250\ mm^3$

substitute the values

$(\frac{4}{3})^3=\frac{x}{250}$

solve for x

$(\frac{64}{27})=\frac{x}{250}$

$x=250(\frac{64}{27})$

$x=592.6\ mm^3$

4 0

3 years ago

Please help me I don’t understand this

Tomtit [17]

Answer:64

Step-by-step explanation:

4 0

2 years ago

How is using partial products to find the product of two 2-digit factors different and similar

Ierofanga [76]

It is different because you are doing a different method to complete the problem. It is the same because it ends up with the same answer, provided you complete the process correctly.

3 0

3 years ago

Christina's purchasing a new TV. She was approved to finance the TV with zero interest. If Christina gives a one-time payment of

Allisa [31]

Given:

One time payment, p = $300

Payment per month, q = $65

Number of months paid, n = 5

The objectiv is to find the amount she paid in 5 months.

Let x be the amount she paid in 5 months. Then the the formula is,

$x=p+nq$

Let's substitute the values.

$\begin{gathered} x=300+5(65) \\ x=300+325 \\ x=625 \end{gathered}$

Hence, total amount paid in 5 months is $625.

3 0

1 year ago

please help me to solve this word problems leading to quadratic equation: A girl is 6 years younger than her brother. the produc

vova2212 [387]

Answer:

Brother is 70.5 and sister is 64.5

Step-by-step explanation:

you will need to set up a simple equation and give out variables.

Girls age = 6-x

Brother's age= x

the you will take those 2 and add them and place them equal to 135:

6-x+x=135

6-2x+6=135+6

The 6 cancels out

2x=141

2x/2=141/2

x=70.5

The brother's age would be 70.5 then and the girl's would be 64.5

5 0

3 years ago