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LenaWriter [7]
4 years ago
12

plzzzzzzzzzzzzzzzzz i need help nowwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww

wwwwwwww

Mathematics
2 answers:
Andre45 [30]4 years ago
4 0

Answer:

D.

Step-by-step explanation:

So find what two numbers multiply to 72 and add up to 17

9 and 8

(z + 9)(z + 8)

Kamila [148]4 years ago
3 0

Answer:

<em>D. (z + 9)(z + 8)</em>

Step-by-step explanation:

Let's factor z2+17z+72

z2+17z+72

The middle number is 17 and the last number is 72.

Factoring means we want something like

(z+_)(z+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get 17

Multiply together to get 72

Can you think of the two numbers?

Try 8 and 9:

8+9 = 17

8*9 = 72

Fill in the blanks in

(z+_)(z+_)

with 8 and 9 to get...

so (z + 9)(z + 8)

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A 25 foot ladder is leaning against a tree. If the base of the ladder is 6 feet
Vera_Pavlovna [14]

9514 1404 393

Answer:

  24.3 ft

Step-by-step explanation:

If h is the height of the ladder up the tree, the geometry can be modeled as a right triangle with legs h and 6, and hypotenuse 25. The Pythagorean theorem gives you the relation ...

  h² +6² = 25²

  h² = 625 -36 = 589

  h = √589 ≈ 24.3

The ladder reaches about 24.3 feet up the tree.

4 0
3 years ago
A triangular prism. The rectangular sides are 8 inches by 4 inches, 8 inches by 5 inches, and 8 inches by 3 inches. The triangul
Scrat [10]

Answer:

A of each triangular base = 6 in²

A of both bases = 12 in²

Lateral A = 96 in²

Surface area = 108 in²

Step-by-step explanation:

<em>Area of each triangular base</em>

1/2(3)(4) = 1/2(12) = 6

<em>Area of  both bases</em>

6*2 = 12

<em>Lateral Area</em>

(8)(3) + (8)(4) + (8)(5)

24 + 32 + 40

96

<em>Total Surface area</em>

96 + 12 = 108 in²

5 0
4 years ago
Read 2 more answers
X = 0.19
Luda [366]

Step-by-step explanation:

.19 = 19/100

.864 = 86.4/100

.5348 = 53.48 /100

I multiplied the decimal by 100 to get what it was before which is the same as moving two decimal places to the right and divided by 100

if any confusion ask

4 0
3 years ago
Read 2 more answers
The speed limit on a highway is 60 miles per hour. A vehicle travels for 2.2 hours on the highway and covers 165 miles. By how m
elena-s [515]

Answer:

15 miles over

Step-by-step explanation:

r=d/t

r= 165/2.2

rate=75

75 miles - 60 miles=

15 miles

5 0
4 years ago
Show Work<br><br> Find the slope (5,-3), (-7,0)
Alex777 [14]
You'd use the equation y2-y1/x2-x1

0-(-3)/-7-5 = 3/-12 = -1/4

So -1/4 would be the slope
m= -1/4
4 0
4 years ago
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