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3 years ago

What is the answer?? Please help me!!! ❤️

Mathematics

1 answer:

oee [108]3 years ago

6 0

Answer:

4a²+3ab-a+a²

Step-by-step explanation:

So let's start off by simplifying this expression:

3a²-2ab+3b²-a+a²+5ab-3b²

Now let's subtract common terms XD

4a²+3ab-a+a²

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15 pts

zhenek [66]

Answer:

The total volume of juice in a six-pack is $254.3\ in^{2}$

Step-by-step explanation:

step 1

Find the volume of one can

The volume of the cylinder (can of juice) is

$V=\pi r^{2} h$

we have

$r=3/2=1.5\ in$ ----> the radius is half the diameter

$h=6\ in$

assume

$\pi =3.14$

substitute

$V=(3.14)(1.5)^{2} (6)$

$V=42.39\ in^{2}$

step 2

Find the total volume of juice in a six-pack

Multiply the volume of one can by 6

$42.39*(6)=254.3\ in^{2}$

8 0

3 years ago

The plot shown below describes the relationship between student scores on the first exam in class and their corresponding scores

nirvana33 [79]

Answer: y=x estimate: 88

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

1-i need to mix 25% mineral spirits to the varnish i am using what ratio of spirit to varnish am i using? 2-if i use 240 ml of v

zhenek [66]

Answer:

(1) The required ratio of spirit to varnish is 1:3.

(2) You need 80 ml of mineral spirit.

(3) The ratio of tapestries' heights to width is 3:2.

Step-by-step explanation:

(1) If you need to mix 25% mineral spirit to the varnish, then the solution would contain 25% mineral spirit and 75% varnish.

So, $\frac{spirit}{varnish}=\frac{25}{75}$

$=\frac{1}{3}$

Thus, The required ratio of spirit to varnish is 1:3.

(2) If you use 240ml of varnish, then this quantity is 75% of the total solution or ration of varnish to the total solution will be 3:4.

Let $x$ be the quantity of total solution.

Then, $240:x=3:4$ .

⇒ $\frac{240}{x}=\frac{3}{4}$

⇒ $3x=240*4$

⇒ $x=\frac{240*4}{3}$

⇒ $x=320$

That is, total solution is 320 ml.

Now, Spirit = Total solution - Varnish

⇒Spirit = 320ml-240ml

⇒Spirit = 80ml

Hence, if you use 240 ml of varnish, you need 80 ml of mineral spirit.

(3) Robison's tapestries all measure 1.5m long and 1m wide. First, we express dimensions in whole numbers by multiplying them by 10.

Then, dimensions are 15m long and 10m wide.

Now, Height : Width = 15:10

⇒ $\frac{Height}{Width} =\frac{15}{10}$

⇒ $\frac{Height}{Width} =\frac{3}{2}$

Hence, the ratio of tapestries' heights to width is 3:2.

8 0

3 years ago

7/8 & 4/9 is closest to 0,1,2,3

Mrrafil [7]

7/8 is closest to 1 and 4/9 is closest to 0

4 0

3 years ago

Read 2 more answers

The solutions of x² = 16x - 28 are<br> 1) -2 and -14<br> 2) 2 and 14<br> 3) -4 and -7<br> 4) 4 and 7

Allisa [31]

2 and 14
hope this helps

6 0

3 years ago