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3 years ago

2x+y=7 for y some please help me on this

2 answers:

8 0

Okay so you would

Y=mx + b

M in this case is the slope (2x)
B is the y intercept (7)

So, y = 2x + 7

To solve for x
Subtract 7
-7 = 2x
Then divide by 2
x = -3.5

IRISSAK [1]3 years ago

5 0

Y=7-2x, x belongs to the reals.

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June drove 116 miles and 5.8 hours at this rate how far will she drive in 5 hours

Sonbull [250]

First we need to calculate how fast she was going in one hour:
116 / 5.8 = 20

then multiply that by 5 to get how far she will go in 5 hours

20 * 5 = 100

8 0

3 years ago

Write an equation for the line of fit for this data in the form y=mx+b where x is latitude and y is temperature.

notka56 [123]

Answer:

$y = -x + 115$

Step-by-step explanation:

Given

See attachment for graph

Required

The equation of best fit

First, we pick two corresponding points on the graph,

We have:

$(x_1,y_1) =(55,60)$

$(x_2,y_2) =(45,70)$

Calculate slope (m)

$m = \frac{y_2 -y_1}{x_2 - x_1}$

This gives:

$m = \frac{70 - 60}{45 - 55}$

$m = \frac{10}{-10}$

$m = -1$

The equation is the calculated using:

$y = m(x - x_1) + y_1$

This gives

$y = -1(x - 55) + 60$

Open bracket

$y = -x + 55 + 60$

$y = -x + 115$

5 0

3 years ago

Jess is building a skateboarding ramp in the shape of a triangular prism with the dimensions shown. If Jess wants to cover all f

vredina [299]

The image showing the dimensions is missing, so i have attached it.

Answer:

A = 156 square feet

Step-by-step explanation:

To find how much plywood Jesse will need to cover all the surface simply means we are to find the surface area.

The surface area of the triangular prism is given by;

A = (2 * (Area of the base)) + (Perimeter of base x height)

Now, area of the base=bh/2

b = 3 ft

h = 4 ft

area of the base = 3*4/2 = 6 ft²

perimeter of the base = L + b + h = 4 + 3 + 5 = 12 ft

height of the prism;h = 12 ft

Thus;

surface area of the triangular prism;

A = (2 * 6) + (12*12)

A = 12 + 144

A = 156 ft²

8 0

4 years ago

_____ have larger blind spots and longer stopping distances compared to other vehicles.

maria [59]

Answer:

D. Vans and Trucks

Step-by-step explanation:

Vans and trucks have larger blind spots and longer stopping distances compared to other vehicles because they are larger in size and it takes more time for them to stop.

5 0

3 years ago

Read 2 more answers

A right cylinder can of PaPi spinach has a diameter length of 4" and a height of 5". what is the total surface area of the spina

Oduvanchick [21]

if the cylinder has a diameter of 4, then its radius is half that, or 2.

$\bf \textit{surface area of a cylinder}\\\\ SA=2\pi r(h+r)~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=2\\ h=5 \end{cases}\implies SA=2\pi (2)(5+2)\implies SA=4\pi (7) \\\\\\ SA=28\pi \implies SA\approx 87.964594\implies \stackrel{\textit{rounded up}}{SA=88.0}$

3 0

3 years ago