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2 years ago

I'll mark brainliest if you help me on this

Mathematics

2 answers:

kirill [66]2 years ago

7 0

Answer:

3 3/4 i think

larisa [96]2 years ago

5 0

the two thickest books are:

$\tt 1\dfrac{6}{8}~and~2$

the total:

$\tt 1\dfrac{6}{8}+2=\dfrac{14}{8}+\dfrac{16}{8}=\dfrac{30}{8}=3\dfrac{6}{8}=3\dfrac{3}{4}$

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Write and solve the equations. A number y is five less than thirteen.

Genrish500 [490]

We can follow the following steps to make an equation and solve it.

Step 1:

five less than 13 means we have to subtract 5 from 13

so it becomes 13-5

Step 2:

A number y is five less than thirteen.

Now in algebraic expressions, "is" stands for "="

So we have:

$y=13-5$

Step 3:

Solving the equation to find y.

$y=13-5$

Subtracting 5 from 13, we get :

y=8

Answer:

For the given equation the solution is y=8.

4 0

3 years ago

Esther uses 6.6 pints of blue paint and white paint to paint her bedroom walls. 3 5 of this amount is blue paint, and the rest i

OverLord2011 [107]

Answer:

2 16/25 or 2.64 pints.

Step-by-step explanation:

Turn the 6.6 into a fraction for calculation purposes. you get 33/5. since 3/5 is blue paint and the question wants white paint, calculate 33/5 × 2/5. You should get 66/25 as the answer.

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2 years ago

If R is the midpoint of OS , RS = 2x - 4, ST = 4x – 1, and RT = 8x – 43, find QS.

RoseWind [281]

Answer:

Step-by-step explanation:

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2 years ago

Expand the polynomial and simplify: (4xy− 1 8 y^2)^2

Vinvika [58]

Answer: $4y^{2}(2x-9y)^{2}$

Step-by-step explanation:

We have the following polynomial:

$(4xy-18y^{2})^{2}$

This is a polynomial of the form $(a-b)^{2}=a^{2}-2ab+b^{2}$ . Following this rule to expand it, we have:

$(4xy)^{2}-2(4xy)(18y^{2})+(18y^{2})^{2}$

$16x^{2}y^{2}-144xy^{3}+324y^{4}$

Applying common factor $4y^{2}$ :

$4y^{2}(4x^{2}-36xy+81y^{2})$

Note the polynomial inside the parenthesis is a perfect square trinomial, which can be factored to $(2x-9y)^{2}$ . Hence, the final simplification is:

$4y^{2}(2x-9y)^{2}$

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2 years ago

Sylvia has a circular table cloth. The area of the table cloth is 254.34 in2

yaroslaw [1]

Answer:

The answer is C

Step-by-step explanation:

table with a 10 in radius

7 0

2 years ago