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coldgirl [10]
3 years ago
6

9/10 as a decimal? I think I know the answer but need to check

Mathematics
2 answers:
AfilCa [17]3 years ago
8 0
The answer is .9 
<em><u>I hope this helps.</u></em>
andriy [413]3 years ago
4 0
 the answer is .9 hope this helped 
<span />
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Can someone help me?
Oxana [17]

Answer:

Step-by-step explanation:

To start calculating, we first need to make some proof.

Firstly, since AB = AC, we know that ΔABC is isosceles, which means that ∠ABC = ∠ACB.

Now, looking only to ΔBDE and ΔCDF, we can see that they are similar, because the two of its angles are congruent:

∠BED=∠CFD

∠DBE=∠DCF

To make it easier to visualize which are the corresponding vertexes, we can draw them like this:

And we need to remember that BC is 24, so:

BD+CD=24

Since the triangles are similar, their corresponding sides have constant ratio, which we can calculate from the corresponding sides DE and CF:

r=\frac{CF}{DE} =\frac{7.5}{4.5} =\frac{5}{3}

This ratio is the same for the other corresponding sides, so we can apply that for BD and CD:

r=\frac{CD}{BD} =\frac{5}{3}\\&#10; \frac{BD}{CD}=\frac{3}{5}  \\\\&#10;BD=\frac{3}{5} Cd

Thus, the measure of CF is approximately 13, alternative D.

3 0
3 years ago
Which of the following is the additive inverse of 1/2
shtirl [24]

Answer:

There is no additive inverse only a multiplication because 1/2 is division so you have to do multiplication. But the answer to that is 2.

8 0
3 years ago
Linear equation in slope intercept form that passes through (-12, 14) and (6, -1)
strojnjashka [21]

Answer:

uhhh... why dont you check my work lol

Step-by-step explanation:

y = -15/18x + b

-1 = -15/18 (6) + b

-1 = 5 + b

-6 = b

check your work:

14 = -15/18(-12) - 6

14 = 10 - 6

14 = 4

3 0
2 years ago
What is the system of equations shown in the graph?
Oliga [24]
Where is the Graph of the equation?
8 0
3 years ago
Solve 3x2 + x + 10 = 0. Round solutions to the nearest hundredth.
Kobotan [32]
<span>3x2 + x + 10 = 0,  delta = 1² - 4.3.10= - 119 <0 so the answer is
b) </span><span>No real solutions</span>
6 0
3 years ago
Read 2 more answers
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