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Ulleksa [173]
2 years ago
12

What is f(-3) for the function f(a)=-2a?-5a+4?

Mathematics
1 answer:
Olegator [25]2 years ago
8 0

Answer:

13

Step-by-step explanation:

f(-3)=2(-3)-5(-3)+4. = -6+15+4= 13. f(a)=13

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A 12 cm by 20 cm painting hangs in a museum. The museum curator wants to hang other paintings in the gallery that are proportion
nata0808 [166]

Answer:

A. 1.5 cm by 2.5 cm

B. 27 cm by 45 cm

C. 9 cm by 15 cm

D. 30 cm by 50 cm

Step-by-step explanation:

The dimensions of the original painting = 12 cm by 20 cm painting

Hence, the proportion is:

12/20 = 0.6

Hence, we compare the options given in the question.

A. 1.5 cm by 2.5 cm

= 1.5/2.5 = 0.6 , option A is correct

B. 27 cm by 45 cm

27cm/45 cm = 0.6 Option B is correct

C. 9 cm by 15 cm

9cm/15cm = 0.6 , Option C is correct

D. 30 cm by 50 cm

30 cm /50 cm = 0.6 Option D is correct

E. 6 cm by 14 cm

6cm/14 cm = 0.4285714286

Option E is not correct

Therefore, Options A to D are the correct options

6 0
3 years ago
What is 10/4+1/3? Pls
borishaifa [10]
The answer to this is 17/6

decimal form: 2.83 (the three is repeating)

mix number: 2 5/6

Hope this helped :)
8 0
3 years ago
Read 2 more answers
John is building a fence around his home currently his fence measures 14 feet on each side but he wants to increase only the wid
nalin [4]

Answer:

The dimensions of rectangular fence are 14 feet and 20 feet.

Step-by-step explanation:

We are given the following in the question:

Length of rectangular fence = 14 feet

Width of fence = (14+x) feet

Area of rectangular field = 280 square feet

Area of rectangular field =

A= \text{Length}\times \text{Width}

Putting the values, we get,

280 = 14(14+x)\\\\14 + x = \dfrac{280}{14}\\\\14 + x = 20\\x =20-14\\x = 6

Thus, the dimensions of rectangular fence are 14 feet and 20 feet.

7 0
3 years ago
In how many ways can the letters in the word "math" be arranged?
BlackZzzverrR [31]
Number of ways = 4! = 4 x 3 x 2 x 1 = 24

Answer: 24
8 0
3 years ago
Glenn Andrews recently bought a new motorbike for $3,950. If he had to pay 6 percent sales tax on the bike, what was the total c
Lorico [155]
FIND TAX
=$3950 * 6%
=3950 * 0.06
=$237 tax

FIND TOTAL
add tax above to bike price
=$3950 + $237
=$4187 total

ANSWER: The cost of the motorbike with tax is $4187.

Hope this helps! :)

3 0
4 years ago
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