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Savatey [412]
3 years ago
13

(Four-fifths + three-fifths) + 3.5 times 5

Mathematics
2 answers:
defon3 years ago
7 0

Answer:

18.9

Step-by-step explanation:

First, lets solve for the fractions. You can divide the fractions from the top, to their bottom (4 divided by 5, 3 divided by 5), in this case, you get 1.4. Now you have to rewrite the problem: 1.4+3.5x5. You solve it, and get 18.9.

lbvjy [14]3 years ago
7 0

Answer:

18.9

Hope that this helps!

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Erica is putting up lines of colored flags for a party. The flags are all the same size and are spaced equally along the line. 1
balu736 [363]

Answer:

I need you to be specific

Step-by-step explanation:

3 0
4 years ago
the figure below is a square . Find the length of side x in simplest radical form with a rational denominator.
wel

Answer:

\sqrt{14}

Step-by-step explanation:

In any square with side length s, the diagonal of the square is equal to s\sqrt{2}. Since the side length of this square is \sqrt{7}, the diagonal is equal to \sqrt{7}\cdot \sqrt{2}=\boxed{\sqrt{14}}.

Alternatively, you can form two 45-45-90 triangles with the diagonal of the square. The diagonal acts as the hypotenuse for the both these triangles, and the legs of both triangles are equal to the side length of the square. To find the length of the diagonal, use the Pythagorean Theorem, which states a^2+b^2=c^2, where c is the hypotenuse of the triangle, and a and b are the two legs of the triangle.

In this question, both legs are equal to \sqrt{7}, and we're solving for the diagonal, which is the hypotenuse in this case:

\sqrt{7}^2+\sqrt{7}^2=c^2,\\c^2=14,\\c=\boxed{\sqrt{14}}

4 0
3 years ago
(8.218+9.93)+(17.782+0.07)
Licemer1 [7]
First, using the order of operations(PEMDAS), you would solve what is inside the parenthesis. 
<span>(8.218 + 9.93) + (17.782 + 0.07)
(</span>18.148) + (17.852)
18.148 + 17.852

Now, all you would have to do is add the two sums. 
18.148 + 17.852 = <span>36
</span>
The answer would be 36. 

I hope this helps!

5 0
3 years ago
I really need help with this
Alex Ar [27]

Answer:

A. x = 3, y = -3

B. a = -2, b = 5

C. try your best ill see u later

Step-by-step explanation:

Okay I'mma state some stuff first 3^a + 3^b = 3^(a+b)

and 3^a/3^b = 3^(a-b)

So first equation 3^3*3^-3=3^0

So second equation 3^3/3^-2 = 3^5

So third equation I dont really know the rule but I'mm just plug in a random number for g, like 2, then solve the thing like a normal equation.

So 3^-3 x f^-3 = 12^2 = 144, f^-3 = 144/(3^-3 or 1/27) = 144 x 27 = 3888

so f^-3 = 3888, f = well its an imaginary number according to calculator so u try your best on the last one

5 0
3 years ago
Find the midpoint of a segment connecting the points (a,b) and (4a,3b)
torisob [31]

Answer:

(2.5a, 2b) your welcome

Step-by-step explanation:

credit to: swerzin brainly.com/question/20863183

4 0
2 years ago
Read 2 more answers
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