All categories

3 years ago

can someone help me? im really stumped, i will give brainliest. so please help. thanks. i really need it

Mathematics

2 answers:

Dovator [93]3 years ago

7 0

Answer: A

Step-by-step explanation:

-7.8 + 3.5 = -7.8

padilas [110]3 years ago

7 0

Answer:

The answer is A.

Step-by-step explanation:

The question is basically asking which number, added to 3.5, gives you -4.3. You just have to do the operation -4.3 - 3.5 to get the answer. You just need to do the inverse. You should end up with -7.8.

You might be interested in

What is the sequence technique of this number sequence 3 20 78 334 1696 ?

polet [3.4K]

3×2+14=20
20×3+18=78
78×4+22=334
334×5+26=1696
1696×6+30=10206
Hence, the question mark should be replaced by 10206

3 0

4 years ago

What is container B that is full after the pumping is complete ?

scoray [572]

Answer

68.4%

Step-by-step explanation

The volume of a cylinder is calculated as follows:

$V=\pi r^2h$

where r is the radius and h is the height of the cylinder.

In the case of cylinder A, its radius is r = 5 ft (= 10/2) and its height is h = 14 ft. Then, its volume is:

$\begin{gathered} V_A=\pi\cdot5^2\cdot14 \\ V_A=350\pi\text{ ft}^3 \end{gathered}$

In the case of cylinder B, its radius is r = 8 ft (= 16/2) and its height is h = 8 ft. Then, its volume is:

$\begin{gathered} V_B=\pi\cdot8^2\cdot8 \\ V_B=512\pi\text{ ft}^3 \end{gathered}$

After the pumping is completed all the liquid in cylinder A, which was full, is placed in cylinder B. If the volume of cylinder B represents 100%, then we need to find what percent, x, represents the volume of cylinder A. We can do this with the help of the next proportion:

$\frac{512\pi\text{ ft}^3}{350\pi\text{ ft}^3}=\frac{100\text{ \%}}{x\text{ \%}}$

Solving for x:

$\begin{gathered} 512\pi\cdot x=100\cdot350\pi \\ x=\frac{100\cdot350\pi}{512\pi} \\ x\approx68.4\text{ \%} \end{gathered}$

6 0

2 years ago

Before every flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the ai

deff fn [24]

The probability that the aircraft is overloaded is 0.6141; since this is a greater than 50% chance, the pilot should either reduce the number of passengers on the plane or require them to reduce their baggage.

The z-score for this is given by

z = (X-μ)/σ = (169-180.2)/38 = -11.2/38 = -0.29.

Using a z-table (http://www.z-table.com) we see that the probability of weights being less than this (the area to the left of this score) is 0.3859; to find the probability that the weight is greater than this (to the right), we subtract from 1:

1-0.3859 = 0.6141.

5 0

3 years ago

Read 2 more answers

Jason helped his dad put plastic and aluminum items into the recycling container. The container is a large cube with a length, w

Alexus [3.1K]

Answer:

The answer is 216 cubic feet

Step-by-step explanation

when its in cubic it means that their talking about voulme and when dealing with voulme you need to multiply length times width times height so 6 times 6 times 6 which equals 216 cubic feets

Hope this helps^^

7 0

3 years ago

Read 2 more answers

Write a multiplication equation that has a solution of 8

juin [17]

Answer: 8X2=8

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers