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spin [16.1K]
2 years ago
12

Maria is mailing packages. each small package costs her $2.20 to send. each large package costs her $2.90. how much will it cost

her to send 6 small packages
and 4 large packages?
Mathematics
1 answer:
dlinn [17]2 years ago
7 0
Multiply 2.90 by 6 and multiply 2.90 by 4 then add them and you get your answer
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Use the commutative property of multiplication to write a related multiplication sentence 3 x 4 = 12
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4x3=12. The commutative property of multiplication says that two numbers can multiplied either way without getting another answer.
3 0
3 years ago
At what point of the curve y = cosh(x) does the tangent have slope 3?
Rus_ich [418]

Answer:

(1.82, 3.17)

Step-by-step explanation:

Given the curve:

y = cosh(x)

we need that the tangent has slope 3. The tangent of a curve in a given point is found with its derivative.

dy/dx = sinh(x) = 3

From the plot of sinh(x), we get:

x ≈ 1.82

Replacing into cosh(x), we get:

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3 0
2 years ago
Which of the following is the multiplicative inverse of 12x/5? a)5/12x b)12x/5 c)- 5/12x d)- 12x/5
fgiga [73]
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7 0
3 years ago
Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree​ 5; ​ zeros: -1; −i; −7+i
vazorg [7]
Bearing in mind that complex roots, do not come all by their lonesome, the zeros of "-i" or "0-i"   and "-7+i" aren't here all by themselves, they came with their sister, the conjugate

so, that is 0-i also comes with 0+i
and -7+i also comes with -7-i

so, the zeros, or solutions or roots, are \bf \begin{cases}
x=-1\implies &x+1=0\\
x=-i\implies &x+i=0\\
x=+i\implies &x-i=0\\
x=-7+i\implies &x+7-i=0\\
x=-7-i\implies &x+7+i=0
\end{cases}\\\\
-----------------------------\\\\
(x+1)(x+i)(x-i)(x+7-i)(x+7+i)=\textit{original polynomial}

so, their product, is the 5th degree polynomial
5 0
3 years ago
Ms. Coleman's class has already collected 403 cans for a food drive, but the class wants to collect a total of at least 1,000 ca
Cloud [144]
1000-403= 597 cans left at least
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Each student should bring 22 cans.
8 0
3 years ago
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