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Valentin [98]
2 years ago
7

can someone check my answers? if they are all right then just leave it alone but if somethings wrong please tell me and explain

why!

Mathematics
2 answers:
andrew11 [14]2 years ago
6 0

Everything is correct except the last one. I have attached the solutions, see them.

Semenov [28]2 years ago
4 0

Answer:

They are all right

Step-by-step explanation:

all of them are right

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4123 to the nearest thousands​
noname [10]

Answer:

4000

Step-by-step explanation:

if 5 or up you round up if under five you round down and after the number you rounded add  0

3 0
3 years ago
Calcular s, si la figura es un prisma a=15m2, b=20m2
julia-pushkina [17]
Celculate the figures by using the numbers,with letters
6 0
3 years ago
Write the Slope-Intercept and Point-Slope forms of the line passing through the point (-3, 2) and having a slope of -4/5
weeeeeb [17]

Answer:

slope-intercept: y=\frac{-4}{5} x-\frac{2}{5}

point-slope: y-2=\frac{-4}{5} (x+3)

Step-by-step explanation:

The slope-intercept form of a line is written as y = mx + b, where m is the slope and b is the y-intercept.

The point-slope form of a line is written as y - y1 = m(x - x1), where (x1, y1) is a given point and m is the slope.

Here, we see that the slope is -4/5, which means that m = -4/5. Since we're given a point (-3, 2), let's go ahead and just write the point-slope form already. (x1, y1) = (-3, 2) so x1 = -3 and y1 = 2. Then:

y - y1 = m(x - x1)

y - 2 = (-4/5) * (x + 3)

y-2=\frac{-4}{5} (x+3)

Now, we want to find the slope-intercept form, so we need to figure out the y-intercept. Well, first, let's plug in what we know:

y = mx + b

y = (-4/5)x + b

Any point on this line will satisfy the above equation. Since (-3, 2) is on this line, if we plug -3 in for x and 2 in for y, the equation should hold true, so we can solve for b:

y = (-4/5)x + b

2 = (-4/5) * (-3) + b

2 = 12/5 + b

b = -2/5

So, the y-intercept is -2/5. Then the slope-intercept form is:

y=\frac{-4}{5} x-\frac{2}{5}

Thus, our two equations are:

slope-intercept: y=\frac{-4}{5} x-\frac{2}{5}

point-slope: y-2=\frac{-4}{5} (x+3)

8 0
2 years ago
{[3 x (3+6) - 5] + 20 x 2
Nataliya [291]

Answer:

a. 62

Step-by-step explanation:

use the Bodmas method

=3×9-5+20×2

=<u>62</u><u> </u>

7 0
2 years ago
Is x-y=1 a direct variation
zhenek [66]

Answer:

Xy=1/5......

Step-by-step explanation:

because

7 0
2 years ago
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