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3 years ago

Evaluate the expression when x = 9.2 and y = 3.4. 5xy

Mathematics

1 answer:

Ray Of Light [21]3 years ago

3 0

Answer:

5x9.2x3.4=156.4

Step-by-step explanation:

plug in 9.2 for x and 3.4 for y then multiply

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Yesterday, the temperature at noon was 43.6 °F. By midnight, the temperature has decreased by 15.3 degrees. What was the tempera

ELEN [110]

Answer:

Temperature at midnight is $-15.9$ °F.

Step-by-step explanation:

Given: The temperature at noon was $43.6$ °F. By midnight, the temperature has decreased by $15.3$ degrees.

To find: The temperature at midnight.

Solution:

The temperature at noon was $43.6$ °F.

Now, by midnight, temperature has decreased by $15.3$ degrees.

So, first we need to convert the temperature in °F.

We know that, $F=\frac{9}{5}C+32$ , where F is temperature in Fahrenheit and C is temperature in Celsius.

So, $F=(\frac{9}{5} \times 15.3)+32$

$\implies F=59.5$

So, by midnight, temperature has decreased $59.5$ °F

Therefore, temperature at midnight is $43.6-59.5=-15.9$ °F

Hence, temperature at midnight is $-15.9$ °F.

5 0

3 years ago

F(−2) = ________ need help

sdas [7]

Answer:

The answer is c

Step-by-step explanation:

8 0

3 years ago

What’s the answer to this problem I need help

Nataliya [291]

6 ≤ 5(x - 4) -2(-x + 1)

First, distribute 5 to all terms within the first parenthesis, and -2 to all terms in the second parenthesis

6 ≤ (5x - 20 + 2x -2)

Combine like terms

6 ≤ (5x + 2x - 20 - 2)

6 ≤ 7x - 22

Isolate the x. Do the opposite of PEMDAS. Note that what you do to one side you to the other.

Add 22 to both sides

6 (+22) ≤ 7x - 22 (+22)

28 ≤ 7x

Divide 7 from both sides

28/7 ≤ 7x/7

28/7 ≤ x

4 ≤ x is your answer

Use a closed dot (because of the equal underneath) on 4, and go left with an arrow

hope this helps

6 0

4 years ago

PLEASE ANSWR DUE BY 11:59 P.M TODAY 50 POINTS

hoa [83]

Answer:

1) 1/4

3) 1/12

4) 5/6

Step-by-step explanation:

1) P(Red) = 1/4

4 options out of which 1 is red

Black --> Black, White, Yellow

Green --> Black, White, Yellow

Red --> Black, White, Yellow

White --> Black, White, Yellow

First 4 branches for buttons.

From each of these 4 branches, make 3 further branches for ribbons

3) In the tree diagram, there are

12 (4×3 = 12) equally likely outcomes

Out of which 1 is (Black, Black)

So, P(Black & Black) = 1/12

4) out of the 12 outcomes, only 2 have same colour of bottom ribbon:

(Black, Black) & (White,White).

Other 10 have different colours.

P(different) = 10/12 = 5/6

5 0

3 years ago

You have a half pizza leftover in the refrigerator. The first night, the pizza goes to the refrigerator and eats 20% of the pizz

lorasvet [3.4K]

$Answer:$

The pizza pirate ate the whole pizza!

2(days) + 3(a few days) = 5

20 x 5 = 100%

Therefore, the whole pizza is gone. Don't worry, I'll buy a new one!

5 0

2 years ago