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3 years ago

Please help me solve this practice SAT question!

Mathematics

1 answer:

lord [1]3 years ago

6 0

Answer:

t=5

Step-by-step explanation:

∵ (t,17) lies on (x,y) plane y=x²-3x+7,t>0

∴ 17=t²-3t+7

t²-3t+7-17=0

t²-3t-10=0

t²-5t+2t-10=0

t(t-5)+2(t-5)=0

(t-5)(t+2)=0

t=5,-2

t>0

so t=5

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PLZ HELP QUICK!!!

Viktor [21]

Answer:

9-8

Step-by-step explanation:

60 divided by 7 is 8.5

4 0

3 years ago

Read 2 more answers

Which function represents g(x), a reflection of f(x) = 4

mel-nik [20]

Answer: Correct answer is C -I just took the test

we have the function f(x) = 4(1/2)x, and we want to reflex it over the x-axis.

you can see in the graph that the reflex over this axis changes the sign of f(x) in all the points (where f(0) = 4, g(0) = -4, f(1) = 2, g(1) = -2, and so on), then the reflex, g(x) is equal to -f(x)

now we have:

g(x) = -f(x) = - 4(1/2)x

then the right answer is the third option:

g(x) = -4(1/2)x

Step-by-step explanation:

7 0

3 years ago

Two trees cast shadows on the ground as shown. The smaller tree is 17m high and cast a 10m long shadow.

Setler [38]

Answer:

2.8

Step-by-step explanation:

this is my best guess

5 0

2 years ago

Rewrite the expression as an equivalent ratio of logs using the indicated base.log17(52.875) to base 10.

s2008m [1.1K]

Answer:

$log_{17}52.875 = log_{10}52.875 : log_{10}17}$

Step-by-step explanation:

Given

$log_{17}(52.875)$

Required

Convert to base 10

To do this, we make use of the following logarithm laws;

$log_ba = \frac{log_{10}a}{log_{10}b}$

In the given parameters;

$a = 52.875$

$b = 17$

Substitute these values in $log_ba = \frac{log_{10}a}{log_{10}b}$

$log_{17}52.875 = \frac{log_{10}52.875}{log_{10}17}$

Represent as a ratio

$log_{17}52.875 = log_{10}52.875 : log_{10}17}$

Hence;

$log_{17}(52.875)$ is represented as $log_{17}52.875 = log_{10}52.875 : log_{10}17}$

7 0

3 years ago

Can someone help me plz

VashaNatasha [74]

$\huge{HEY!!}$
______________________________

⚫We have to find out the value of $1 \frac{2}{3} \div 6$

⚫So we have to convert it like this first,

$\frac{5}{3} \div 6$

⚫Do reciprocal to change the sign of divide into multiply

$\frac{5}{3} \times \frac{1}{6}$

⚫By doing this, we will get

$\frac{6}{18}$

Simplify this,

$\frac{1}{3}$

⚫⚫So our answer will be $\frac{1}{3}$

5 0

3 years ago