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3 years ago

Factor. Z^2+ 8z – 20

Mathematics

1 answer:

zimovet [89]3 years ago

8 0

Step by Step:

(z^2 -2z)(10z-20)

z(z-2)+10(z-2)

(z+10)(z-2)

Hope this helps.

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What is m D? mZD = PLZZZ help

RUDIKE [14]

Answer:

Angle D is 63

Step-by-step explanation:

oAngle B is congruent and correponding to angle D

Angle B is 63 degrees

so therefore, angle D is also 63 degrees

Hope this helped! Have a nice rest of ur day! Plz mark as brainliest!!! :D

-Lil G

4 0

3 years ago

4. The graph of h(x) = x^2 was transformed to create the graph of k(x) = -4x^2? Which of these describes the transformation from

Viefleur [7K]

Answer:

A. A reflection over the x-axis and a vertical stretch.

Step-by-step explanation:

Let $h(x) = x^{2}$ , to obtain $k(x) = -4\cdot x^{2}$ , we need to use the following two operations:

(i) Vertical stretch

$g(x) = k\cdot f(x)$ , $k\in \mathbb{R}^{+}$

(ii) Reflection over the x-axis

$g(x) = -f(x)$

Let prove both transformations in $h(x)$ :

Step 1 - Vertical stretch ( $k = 4$ )

$h'(x) = 4\cdot x^{2}$

Step 2 - Reflection over the x-axis

$k(x) = -4\cdot x^{2}$

Hence, correct answer is A.

5 0

3 years ago

I need help ASAP I also need to show work

krok68 [10]

Answer:

A = 66 cm^2

Step-by-step explanation:

The equations to find the area of a paraleogram is:

A = bh

A = 11(6)

A = 66 cm^2

8 0

3 years ago

Which box and whisker plot shows the scores of ten students on a mathematics exam? 89, 78, 93, 90, 75, 81, 91, 80, 89, 79.

Lunna [17]

First you got to put them too--- least to greater --- then star with lowest ### the that will be Q1=75 Q2=81 Q3=91 the last one will be highest ### for Q4 93

this is my educated guess not for sure so don`t get mad ..........

6 0

3 years ago

the costs of the pizzas you ordered for lunch was $45.45. Nine people ate pizza. how much will each person owe for lunch?

Serjik [45]

Your answer should be $5.05.

$45.45 divided by 9 = $5.05. Hope this helps!

4 0

4 years ago