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3 years ago

Can someone help me with this math homework please!

Mathematics

1 answer:

VikaD [51]3 years ago

6 0

Step-by-step explanation:

formula is:

(°F − 32) × 5/9 = °C

39°F = (39-32) x 5/9 = 3.9°C

5 F to C = -15 °C

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Pleaseee helpppp:)))

matrenka [14]

Answer:

<h2>Option B:</h2><h3>112 families </h3>

Step-by-step explanation:

Given,

No. of families = 75

Out of 75 no. of families had cars = 42

Out of 1, no. of families can have cars

$= \frac{42}{75}$

Therefore, 

Out of 200 families, no. of families had cars

$= 200 \times \frac{42}{75}$

$=200 \times \frac{14}{25}$

= 8 × 14

= 112

Hence, 

option B is correct as 112 families have cars out of 200 families (Ans)

5 0

2 years ago

F(x) = 3x^4 is even or odd?

lara31 [8.8K]

Answer:

Step-by-step explanation:

it's even because f(-x)=f(x)

3 0

3 years ago

Read 2 more answers

Use estimation to determine which of the following expressions is greater. Explain how you got your answer. 5 × (1.9 + 3.15) and

Sonja [21]

The first one is greater. Adding 3.2 and 0.2 is easy! It's 3.4! Make that 3. Make 6.9, 7. 7×3=21. For the first one, make 1.9, 2. Then Make 3.15, 3. 5×5=25. That is why the first one is greater.

5 0

3 years ago

Read 2 more answers

The sum of the measures of the angles of a triangle is 180°. The middle-sized angle measures 3° more than 2 times the smallest a

Anit [1.1K]

Answer:

13° , 29° , 138°

Step-by-step explanation:

let x be the smallest angle , then

2x + 3 is the middle angle and

2x + 3 + 109 is the largest angle

summing the 3 angles and equating to 180

x + 2x + 3 + 2x + 3 + 109 = 180 , that is

5x + 115 = 180 ( subtract 115 from 180 )

5x = 65 ( divide both sides by 5

x = 13

2x + 3 = 2(13) + 3 = 26 + 3 = 29

2x + 3 + 109 = 29 + 109 = 138

the 3 angles are 13° , 29° , 138°

6 0

1 year ago

4. Identify whether each function is linear or non-linear. Then, evaluate the function for the given value of

ozzi

$f(x) = x3 + 2x2 + 6 \\ f(3) = (3)3 + 2(3)2 + 6 \\ = 9 + 12 + 6 \\ f(3) = 28 \\ \\ f(x) = 1x \\ f(8) = 1(8) \\ = 8 \\ f(8) = 8$

6 0

3 years ago