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mr Goodwill [35]
3 years ago
9

Last one plz help me

Mathematics
1 answer:
finlep [7]3 years ago
8 0

Answer:

17.2 cm

Step-by-step explanation:

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NEED The FULL equation. Will give Brainly. Thank you!
Ghella [55]

Answer:

\displaystyle  \sf h( - 1) =   - \frac{    2}{3}

Step-by-step explanation:

we are given a function

\displaystyle \sf h(x) =  \frac{2x - 6}{4 {x}^{2}  + 8}

we would like to simplify it for h(-1)

in order to do so

substitute the value of x

\displaystyle \sf h( - 1) =  \frac{2 \cdot - 1- 6}{4 { (- 1)}^{2}  + 8}

by order of PEMDAS

simplify square:

\displaystyle \sf h( - 1) =  \frac{2 \cdot - 1- 6}{4 { ( 1)}^{}  + 8}

simplify multiplication:

\displaystyle \sf h( - 1) =  \frac{ - 2 - 6}{4 { }^{}  + 8}

simplify addition:

\displaystyle \sf h( - 1) =  \frac{ - 2 - 6}{12}

simplify subtraction:

\displaystyle \sf h( - 1) =  \frac{   - 8}{12}

reduce fraction:

\displaystyle  \sf h( - 1) =   - \frac{    2}{3}

5 0
3 years ago
Tom wants to reach a second floor window on a house that is 20 feet above ground. If he must put the ladder at a 70° angle to th
vovangra [49]
Let the ladder length be L, then

sin 70 = 20/L, L = 20/sin70 = 21.3 feet
the length of ladder is 21.3 feet
5 0
3 years ago
Lisa is on a trip of 887 miles. She has already traveled 98 miles. She has 3 days left in her trip. How many miles does she need
STALIN [3.7K]
I might be wrong but, I would say about 32.6 miles a day. This could be wrong.
6 0
3 years ago
A ratio equivalent to 2:5 is 2 :10
azamat
False... a ratio equivalent to 2:5 is 4:10

2/5 × 2/2 = 4/10
8 0
3 years ago
The circle below is centered at the point (4,3) and has a radius length 5. What is its equation
Crazy boy [7]
The equation of a circle centred at point (m,n) and radius r is given by

<span>(x-m)² + (y-n)² = r²
</span>-------------------------------------------------------------
Centre = (4,3)
radius = 5

Equation:
(x - 4)² + (y - 3)² = 5²
⇒ x² - 8x + 16 + y² - 6y + 9 = 25
⇒ x² + y² - 8x - 6y + 25 = 25
⇒ x² + y² - 8x - 6y = 0

The equation of the circle is x² + y² - 8x - 6y = 0

Hope it helps!
3 0
3 years ago
Read 2 more answers
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