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3 years ago

Simplify the expression 6h + (-8.1d) - 13 + 5d - 2.4h

Mathematics

1 answer:

Alisiya [41]3 years ago

8 0

Answer:

3.6h - 3.1d + 13

Step-by-step explanation:

Combine like terms. Like terms have same variables.

Like terms : (i) 6h and (-2.4h) (ii) -8.1d and 5d

6h + (-8.1d) - 13 + 5d - 2.4h = 6h - 2.4h + (-8.1d) + 5d - 13

= (6 - 2.4)h + (-8.1 + 5)d - 13

= 3.6h - 3.1d + 13

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F(x)=−4x ^ 2 +10 {Find }f(-2)

BlackZzzverrR [31]

Answer:

$f(-2) = -6$

Step-by-step explanation:

Step 1: Set x to -2

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$f(-2) = -4(4) + 10$

$f(-2) = -16 + 10$

$f(-2) = -6$

Answer: $f(-2) = -6$

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3 years ago

What is the area of this tile? 10in 8in 6in

Maksim231197 [3]

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3 years ago

Write an equation in point-slope form of the line that passes through the given point and has the given slope. (12, 5); m = -3

givi [52]

Answer:

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Step-by-step explanation:

Point slope form is: y - y1 = m(x - x1), where (x1, y1) is a point on the line, and m is the slope of the line.

Plug in the point and the slope:

y - y1 = m(x - x1)

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3 years ago

Keegan deposits into her savings account at the beginning of the year. The account earns 3% simple interest each year. She has $

fiasKO [112]

Answer:

She deposits $350 into the account at the beginning of the year.

Step-by-step explanation:

Let us assume that Keegan deposits $P into her savings account at the beginning of the year.

The account earns 3% simple interest each year and she has $360.50 in her account at the end of the year.

If Keegan did not make any additional deposits or withdrawals during the year.

So, we can write that $P[1+\frac{3}{100} ]= 360.50$

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3 years ago

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mafiozo [28]

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The radius is 5

Step-by-step explanation:

Equation of a circle is:

(x-h)^2+(y-k)^2=r^2

(x+5)^2+(y-2)^2=5^2

Comparing both equations we get :

The center (-5,2)

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Hope This Helps :)

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3 years ago