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gregori [183]
3 years ago
8

F(x)=4x-5, find f(-2)

Mathematics
1 answer:
GenaCL600 [577]3 years ago
4 0

Answer:

The answer is -13.

Step-by-step explanation:

=4×(-2)-5

=-8-5

=-13

The value of (-2) is -13.

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Write the following phrase as a variable expression. Use X to represent “a number.” The sum of eleven, a number, and the product
melamori03 [73]

Answer:

11 + x + 19*x

Step-by-step explanation:

The sum of eleven, a number, and the product of nineteen and the number.

we have to read carefully and understand how to interpret

when he says the sum of separates into 3 parts because there is a "comma" and an "and"

Now let's separate the 3 parts of the sum

1 part

says eleven so we just put 11

eleven = 11

2 part

in the text it says that we replace "a number" with x

a number = x

3 part

In this case we simply make the product between the given values

the product of nineteen and the number

19 * x

Now we can accommodate everything and we finish

11 + x + 19*x

6 0
3 years ago
A surveyor needs to determine the height of a tree. She places a mirror on the ground and paces backwards until she sees the top
Arada [10]
She then measures the distance from the mirror to the base of the tree ... backwards until she sees the top of the tree reflected in the mirror.
7 0
3 years ago
Dylan and Spencer went looking for Dylan's lost dog. Dylan traveled 100 meters to the neighbor’s house, 1.5 kilometers to the pe
pickupchik [31]
So Dylan traveled a total of 
100 meters (to the neighbors house)
plus 1.5 kilometers which a kilometer means thousand meters so its really 1500 meters
plus 310 meters

For Dylans distance we can do 100 + 1500 + 310 = 1910
Specers distance is given which is 1269

To find the final answer we can do Dylans distance minus Spencers so 1910 - 1269 which equals 641.

The correct answer would be that Dylan traveled 641 meters farther than Spencer

Answer: 641 

Hope this helps!
4 0
2 years ago
Read 2 more answers
Help me on this one please​
soldi70 [24.7K]

Answer:

615.8

Step-by-step explanation:

Circle area = π * r² = π * 196 [mcm²] ≈ 615.8 [cm²]

7 0
1 year ago
Read 2 more answers
If y varies directly as x, and y is 6 when x is 72, what is the value of y when x is 8?
Eddi Din [679]

Answer:

2/3

Step-by-step explanation:

Y varies directly as x

Y =kx

Y=6 when x = 72

First find the relationship between y and x.

i.e find the value of k

Substitute the value of x and y

6 = k *72

Make k the subject of the formula

K = 6/72

K= 1/12

:. The rlationship between x and y is

Y = 1/12x

When x is 8

Y = 1/12 * 8

Y = 8/12

Y = 2/3 and that is the answer

Hope it helped you

3 0
3 years ago
Read 2 more answers
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