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Trava [24]
3 years ago
11

I need help ASAP!!!please help

Mathematics
1 answer:
muminat3 years ago
8 0
Use 6 triangles then 2 square so you will only be using a total of 4 square and 12 triangles
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We can calculate the depth d of snow, in centimeters, that accumulates in Harper's yard during the first h hours of a snowstorm
PtichkaEL [24]

We are given an equation d = 5h, where d is the depth of snow and h is the number of hours of a snowstorm.

We need to find the number of hours of a snowstorm that accumulate the  snow to 1 centimeter.

In order to find the number of hours that accumulate the  snow to 1 centimeter, we need to plug d=1 in the given equation.

On plugging d=1, we get

1= 5h.

Dividing both sides by 5, we get

1/5 = h.

<h3>Therefore, it would take 1/5 hour for 1 centimeter of snow to accumulate in Harper's yard</h3>
4 0
3 years ago
Read 2 more answers
If there’s 40 students and 55% students passed.<br> What number of students passed
OlgaM077 [116]

Answer:

22

Step-by-step explanation:

40x.55=22

5 0
3 years ago
How do we find the slope of a line that is given in slope-intercept form?
Leno4ka [110]

Answer:

The slope is the coefficient of x, regardless the order.

Step-by-step explanation:

7 0
2 years ago
Which expression is equal to 7/5√ ? 75√/5 49/35√ 35/5√ 75√/25
Crazy boy [7]

Answer:

the square root of 35/5

Step-by-step explanation:

8 0
3 years ago
Find a cubic polynomial that goes through points (4, – 22) and (3, - 26) and has tangents with slopes
Salsk061 [2.6K]

Let <em>f(x)</em> = <em>ax</em> ³ + <em>bx</em> ² + <em>cx</em> + <em>d</em>.

The graph of <em>f(x)</em> passes through (4, -22) and (3, -26), which means <em>f</em> (4) = -22 and <em>f</em> (3) = -26, so that

64<em>a</em> + 16<em>b</em> + 4<em>c</em> + <em>d</em> = -22

27<em>a</em> + 9<em>b</em> + 3<em>c</em> + <em>d</em> = -26

When the question says it has tangents at some point, I take that to mean the slope of the tangent line at that point is the given number. So <em>f '</em> (4) = 11 and <em>f '</em> (3) = -2. We have

<em>f '(x)</em> = 3<em>ax</em> ²+ 2<em>bx</em> + <em>c</em>

so that

48<em>a </em>+ 8<em>b </em>+ <em>c</em> = 11

27<em>a </em>+ 6<em>b</em> + <em>c</em> = -2

Solve the system:

• Eliminate <em>d</em> :

(64<em>a</em> + 16<em>b</em> + 4<em>c</em> + <em>d</em>) - (27<em>a</em> + 9<em>b</em> + 3<em>c</em> + <em>d</em>) = -22 - (-26)

→   37<em>a</em> + 7<em>b</em> + <em>c</em> = 4

• Eliminate <em>c</em> :

(48<em>a </em>+ 8<em>b </em>+ <em>c</em>) - (27<em>a </em>+ 6<em>b</em> + <em>c</em>) = 11 - (-2)

→   21<em>a</em> + 2<em>b</em> = 13

(48<em>a </em>+ 8<em>b </em>+ <em>c</em>) - (37<em>a</em> + 7<em>b</em> + <em>c</em>) = 11 - 4

→   11<em>a</em> + <em>b</em> = 7

• Eliminate <em>b</em>, then solve for <em>a</em> and the other variables:

(21<em>a</em> + 2<em>b</em>) - 2 (11<em>a</em> + <em>b</em>) = 13 - 2 (7)

-<em>a</em> = -1

<em>a</em> = 1   →   <em>b</em> = -4   →   <em>c</em> = -5   →   <em>d</em> = -2

Then

<em>f(x)</em> = <em>x</em> ³ - 4<em>x</em> ² - 5<em>x</em> - 2

7 0
4 years ago
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