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2 years ago

Find the upper limit for the zeros of the function P(x)=4x^4+8x^3-7x^2-21x-9

Mathematics

1 answer:

pishuonlain [190]2 years ago

3 0

Answer:

OPTION B - 2

Step-by-step explanation:

What is the upper limit for the zeros of the function P(x) = 4x^4 + 8x^3 - 7x^2 - 21x - 9. Ans: 2 is an upper limit. Use synthetic division. and the remainder are all positive, 2 is an upper limit.

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4) A safe contains 120 coins, the value of which is $10. If the coins consist of nickels and dimes, how many of each kind are in

alexandr1967 [171]

There are 40 nickels and 80 dimes

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3 years ago

Solve GHI. Round the answer to the nearest hundredth.

Sedaia [141]

Answer:

Part 1) $HI=15\ units$

Part 2)

Part 3) $< I=28.07\°$

The answer is the option A

Step-by-step explanation:

Part 1) Find the measure of side HI

Applying the Pythagoras Theorem

$GI^{2} =GH^{2}+HI^{2}$

substitute the values and solve for HI

$17^{2} =8^{2}+HI^{2}$

$HI^{2}=17^{2}-8^{2}$

$HI^{2}=225$

$HI=15\ units$

Part 2) Find the measure of angle G

In the right triangle GHI

$cos(G)=\frac{GH}{GI}$

substitute the values

$cos(G)=\frac{8}{17}$

$G=arccos(\frac{8}{17})=61.93\°$

Part 3) Find the measure of angle I

Remember that

The sum of the interior angles of a triangle must be equal to 180 degrees

substitute the values

$61.93\°+90\°+< I=180\°$

$< I=180\°-(61.93\°+90\°)=28.07\°$

7 0

3 years ago

Answer pleaseeeeeeeeeee

kondaur [170]

Answer:

B. $10 bag, $0.80 per pound

Step-by-step explanation:

10 / 8 = 0.80

25 / 15 = 1.67

0.80 is cheaper

7 0

2 years ago

Read 2 more answers

If DEF ~= PQR, which congruences are true by CPCTC? Select all that apply.

tatyana61 [14]

Answer:

A, C, E, F

Step-by-step explanation:

6 0

3 years ago

Find an equation of the line passing through the pair of points. Write the equation in slope-intercept form.

muminat

Answer:

y=10-x

Step-by-step explanation:

1. Find the slope of the equation using the formula (change in y/change in x)

(3-7)/(7-3)=-4/4=-1

2. Plug in the slope and one of the coordinate points to the slope-intercept form to find the y-intercept.

slope-intercept form: y=mx+b

7=-3+b

b=10

3. Put the slope-intercept form of the equation together.

y=10-x

3 0

3 years ago