Ask question

Ask question

All categories

Gelneren [198K]

1 year ago

12

At the start of a lab experiment, the temperature of a liquid was 15 °C. The temperature of the liquid was lowered by 9.5 °C eve

ry hour
for 3 hours, and then the final temperature was recorded.
What was the final temperature of the liquid?

1 answer:

scoundrel [369]1 year ago

3 0

Answer:

Answer is -13.5C

Step-by-step explanation:

9.5 times 3 is 28.5 15 - 28.5 is -13.5 C

You might be interested in

Find LN in the image below .

Anarel [89]

Answer:

14

Step-by-step explanation:

We see that MP and PL are congruent, as are MQ and QN. Using scale factors, we can conclude that the scale factor from MP to ML is 1:2.

Based on SAS similarity, MPQ and MLN are similar, so their sides are proportional.

6 0

3 years ago

A family built a house and wanted to put down in their rectangular yard. The sod costs $0.32 per square foot plus 10 per square

sammy [17]

Answer:

The total cost of purchasing and laying sods in the rectangular yard is $2,146.67

Step-by-step explanation:

We are given the following in the question:

Dimensions of rectangular yard:

Length = 50 feet

Width = 30 feet

Area of rectangular yard =

$A = \text{Length}\times \text{Width}\\A = 50\times 30\\A = 1500\text{ square feet}$

Cost of sod = $0.32 per square foot

Total cost of sod =

$C_1 = \text{Unit cost of sod}\times \text{Area of yard}\\C_1 = 0.32\times 1500\\C_1 = 480\$$

Cost of laying sods = $10 per square yard

Total cost of laying sod =

$C_2 = \text{Unit cost of laying sod}\times \text{Area of yard}\\\\\text{1 square yard}=\dfrac{1}{9}\text{Square foot}\\\\C_2 = 10\times \dfrac{1500}{9}\\\\C_2 = 1666.67\$$

Total cost of purchasing and laying the sod =

$C = C_1 + C_2\\C = 480 +1666.67\\C = \$2,146.67$

Thus, the total cost of purchasing and laying sods in the rectangular yard is $2,146.67

3 0

3 years ago

What is the area of a circle whose radius is 6ft?

uranmaximum [27]

Answer:

hello :

Step-by-step explanation:

the area of a circle is : A = π r² r : the radius

A = π (6)² = 36π (ft)² ........( answer : C)

7 0

2 years ago

A cylindrical paint can has a capacity of one gallon. for another size can, the height is doubled. what is the capacity of the l

skelet666 [1.2K]

We know that

[volume of a <span>cylindrical paint can 1]=[area of the base]*h
so
</span>[area of the base]*h=1 gallon

if <span>the height is doubled
</span>[volume of a cylindrical paint can 2]=[area of the base]*(2*h)
[volume of a cylindrical paint can 2]=2*{[area of the base]*h)}
[volume of a cylindrical paint can 2]=2*[volume of a cylindrical paint can 1]
[volume of a cylindrical paint can 2]=2*[1 gallon]-----> 2 gallons

the answer is
<span>the capacity of the lager one is 2 gallons</span>

4 0

3 years ago

For a company picnic, Matthew ordered a box of fresh-baked gingerbread biscuits and sugar biscuits. He purchased 95 biscuits in

Vilka [71]

____________________________________

5 0

2 years ago