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Nutka1998 [239]
3 years ago
13

Factor (z-5)(z+4)=52​

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
4 0

Good Afternoon! Here is your answer step by step!

Let's solve your equation step-by-step.

(z−5)(z+4)=52

Step 1: Simplify both sides of the equation.

z2−z−20=52

Step 2: Subtract 52 from both sides.

z2−z−20−52=52−52

z2−z−72=0

Step 3: Factor left side of equation.

(z+8)(z−9)=0

Step 4: Set factors equal to 0.

z+8=0 or z−9=0

z=−8 or z=9

Answer:

z=−8 or z=9

Have a blessed day! ❤

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6.<br> Find the slope of a line that contains the points: (-3,5) and (-1, 12).<br> Slope =
kap26 [50]

Answer:

7/2

Step-by-step explanation:

Slope= y2-y1/x2-x1

(12-5)/(-1--3)

-> (7)/(2)

7/2

6 0
4 years ago
28 children will attend the birthday party if each child gets 2 party favors and there are 14 favors in each box how many boxes
dezoksy [38]
Hello!

So if each box has 14 favors, what we need to do is add until we have enough, or more than enough for each of the children that will be at the party to get two of them.

So to start, 14+14=28. There are 28 children going, but each child must have two favors, not one. So, we simply add on two more boxes. 28+14=42, 42+14=56. So, we need 56 favors for each child to get two. 

You could multiply to make this problem faster, but adding works out easier in my head. Sorry to drag it out!

So to make it simple, you need four boxes of favors for each child to get two.

Hope this helps, have an awesome day!
3 0
3 years ago
What time does noon start at
Gwar [14]
Right at 12:00 is when the evening starts
7 0
3 years ago
Read 2 more answers
Please help i’ll mark
dolphi86 [110]

Answer:

Last option

Step-by-step explanation:

0.52 are girls

so boys = 1 - 0.52 = 0.48

But only half are in clubs

= 0.5 (0.48)

Total students are 1525

= 1525 (0.5) (0.48)

The last option is right

5 0
3 years ago
Read 2 more answers
Can you please help me solve for the area
ycow [4]

Answer:

area is equal to 198 cm^2

Step-by-step explanation:

the height h of the left triangle can be obtained by

Pytagoras theorem:

5^2+h^2=13^2\\25+h^2=169\\h^2=169-25\\h^2=144\\h=\sqrt{144} \\h=12

the, the area of the left triangle is

A_1=\frac{5*12}{2} \\A_1=5*6\\A_1=30

the area of the right triangle is

A_2=\frac{2*12}{2} \\A_2=12

and the area of the rectangle in the middle is

A_3=(13)(12)\\A_3=156

Por tanto, el area total sera

A=A_1+A_2+A_3\\A=30+12+156\\A=198

8 0
3 years ago
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