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Cerrena [4.2K]
2 years ago
9

(-2v2+19v-5) - (-4v2+v-23)? How to do????!!!!! Thank you

Mathematics
2 answers:
dalvyx [7]2 years ago
8 0
Is that really a problem of just something random
Stels [109]2 years ago
6 0

Answer:

2v^2+18v+18

Step-by-step explanation:

(-2v^2+19v-5)-(-4v^2+v-23)\\=-2v^2+19v-5+4v^2-v+23\\=2v^2+18v+18

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Let f(x)= 100 / −10+ e^ −0.1x . What is f(−6) ?
bija089 [108]

The value of f(-6) is -12.2

Explanation:

Given that the function f(x)=\frac{100}{-10+e^{-0.1\left(x\right)}}

We need to determine the value of f(-6)

The value of f(-6) can be determined by substituting the value for x=-6 in the function and simplify the function.

Hence, let us substitute x=-6 in the function, we get,

f(-6)=\frac{100}{-10+e^{-0.1\left(-6\right)}}

Let us apply the rule -\left(-a\right)=a , we get,

f(-6)=\frac{100}{-10+e^{0.1\left(6\right)}}

Multiplying the numbers, we get,

f(-6)=\frac{100}{-10+e^{0.6}}

The value of e^{0.6}=1.822

Substituting the value of e^{0.6}=1.822 , we get,

f(-6)=\frac{100}{-10+1.822}

Subtracting the denominator, we have,

f(-6)=\frac{100}{-8.178}

Dividing, we have,

f(-6)=-12.228

Rounding off to the nearest tenth, we have,

f(-6)=-12.2

Thus, the value of f(-6) is -12.2

4 0
2 years ago
you can use the expression 5n to determine the amount of money you have in cents, when you have n nickels. Find the amount of mo
Anni [7]

Answer:

90 cents

Step-by-step explanation:

Find how much money you have by plugging in 18 as n into the expression:

5n

5(18)

Multiply:

= 90

So, when you have 18 nickels, you have 90 cents

8 0
3 years ago
1.4.7+4.7.10+7.10.13 to n terms
Cerrena [4.2K]
◆ SEQUENCE AND SERIES ◆

Heya !

Check the attachment.
Hope it helps you ;)

8 0
3 years ago
3rs - 5cr - 15cs + 25c2
Montano1993 [528]

3rs-5cr-15cs+25c^2=r(3s-5c)-5c(3s-5c)\\\\=(3s-5c)(r-5c)\\\\Answer:\ \boxed{3rs-5cr-15cs+25c^2=(3s-5c)(r-5c)}

4 0
3 years ago
Read 2 more answers
5 quarters weigh approximately 1 ounce. How many ounceswould you expect a collection of quarters worth $15 to weigh?
PSYCHO15rus [73]

5 quarters =1.25$

15$÷1.25$=12

then 15$ in quaters would weigh 12 ounces

8 0
2 years ago
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