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3 years ago

If h(x) = x2-5x + 7 find: h(-5)

Mathematics

2 answers:

NISA [10]3 years ago

7 0

It is −3)=57. Explanation: Hence h(x)=5x2−4x then just replace x for −3. h(−3)=5⋅(−3)2−4⋅(−3)⇒h(−3)=45+12⇒h(−3)=57

Lady_Fox [76]3 years ago

5 0

Answer:

h(-5)=22

Step-by-step explanation:

Replace x with -5.

$h(-5) = (-5)2-5(-5) + 7$

Simplify.

$h(-5)=-10+25+7$

Simplify.

$h(-5)=22$

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Solve ln 2 + ln x = 5. Round to the nearest thousandth, if possible.

azamat

Answer:

The value of x nearest to thousandths is, 74.207

Step-by-step explanation:

Solve : $\ln 2 + \ln x = 5$

$\ln$ represents the logarithmic function with base e.

Using logarithmic properties:

$\ln (mn) = \ln m + \ln n$

$\ln x = a$ , then $x = e^a$

$\ln 2 + \ln x = 5$

Apply the logarithmic properties; we have

$\ln 2x = 5$

then;

$2x = e^5$

$2x=148.41315910258$

Divide both sides by 2 we get;

$x = 74.2065796$

Therefore, the value of x nearest to thousandths is, 74.207

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scZoUnD [109]

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