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Masteriza [31]
3 years ago
15

If a test is 150 questions how many answers can you get wrong to still get an 80%

Mathematics
1 answer:
adoni [48]3 years ago
6 0
To get this score u might have 30 wrong answers
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If s(x) = x-7 and f(x) = 4x? – X+3, which expression is equivalent to (tos)(x)?
lesya692 [45]

Answer:

4(x-7)^2-(x-7)+3 (Assuming t is f)

Step-by-step explanation:

Let s(x)=x-7 and t(x)=4x^2-x+3 .

(t o s)(x)=t(s(x))=t(x-7)

Before I continue this means replace the orginal x in t with x-7.

This will then give you

4(x-7)^2-(x-7)+3

4 0
3 years ago
Help me with this please​
LenKa [72]

Answer: D. 3 x 10^7

Step-by-step explanation: 9.6/3.2=3 and 10^9/10^2 is 9-2=7, so 10^7, so it would be 3 x 10^7.

7 0
3 years ago
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Substance means a object B liquid C material d solid
nydimaria [60]
<span> B liquid


Hope I helped!

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3 0
3 years ago
Which expression is equivalent to Assume x &gt; 0 and y 0.
Svetach [21]

we have

\sqrt{\frac{55x^{7}y^{6}}{11x^{11}y^{8}}}

we know that

\sqrt{\frac{55x^{7}y^{6}}{11x^{11}y^{8}}} =\sqrt{\frac{55}{11}\frac{x^{7}}{x^{11}}\frac{y^{6}}{y^{8}}} \\ \\= \sqrt{\frac{5}{x^{4} y^{2}}} \\ \\ =\frac{\sqrt{5}}{x^{2} y}

therefore

<u>the answer is</u>

The expression equivalent is  \frac{\sqrt{5}}{x^{2} y}

3 0
3 years ago
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Terry has a savings account that pays 1.9% interest per year. Terry’s grandmother opened the account for him on his 10th birthda
noname [10]

Answer:

he will make 38 dollars by his 14th birthday

5 0
3 years ago
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