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Leto [7]
3 years ago
12

I need help algbra 2

Mathematics
1 answer:
WITCHER [35]3 years ago
8 0
Well for the first question, all of the equations that are in the Parenthesis are squared and for the second one I think it’s the 3rd option
You might be interested in
Which is greater 13.6 or 13.06
slava [35]
13.6 is greater bcuz it is 13.60 not 13.06
4 0
3 years ago
Read 2 more answers
Consider the diagram below. Which of the following represent the values of x,y, and z to the nearest hundredth?
astraxan [27]
See the attached figure to better understand the problem

we know that
in the triangle BCD
y²+5.66²=z²-------> y²=z²-5.66²------> equation 1

in the triangle ABC
y²+5.66²=x²-------> y²=x²-5.66²------> equation 2

equals 1 and 2

z²-5.66²=x²-5.66²--------> z²=x²---------> z=x

if z=x then
angle A=45°
angle D=45°

in the triangle ABD
cos 45=z/(5.66*2)-------> z=11.32*cos 45-----> 11.32*√2/2----> 8
z=8
x=8

y²=z²-5.66²------> 8²-5.66²-----> y²=31.96------> y=5.65

the answer is
the value of x is 8
the value of z is 8
the value of y=5.65

7 0
4 years ago
Factor and find the zeros. z^2-z+56
Inessa [10]

Answer:

Sry its long but if your to lazy to look thru it here is the answer=   z = {-7, 8}

Step-by-step explanation:

Simplifying

z2 + -1z + -56 = 0

Reorder the terms:

-56 + -1z + z2 = 0

Solving:

-56 + -1z + z2 = 0

Solving for variable 'z'.

Factor a trinomial.

(-7 + -1z)(8 + -1z) = 0

Subproblem 1

Set the factor '(-7 + -1z)' equal to zero and attempt to solve:

Simplifying:

-7 + -1z = 0

Solving:

-7 + -1z = 0

Move all terms containing z to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + -1z = 0 + 7

Combine like terms: -7 + 7 = 0

0 + -1z = 0 + 7

-1z = 0 + 7

Combine like terms: 0 + 7 = 7

-1z = 7

Divide each side by '-1'.

z = -7

Simplifying:

z = -7

Subproblem 2

Set the factor '(8 + -1z)' equal to zero and attempt to solve:

Simplifying:

8 + -1z = 0

Solving:

8 + -1z = 0

Move all terms containing z to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + -1z = 0 + -8

Combine like terms: 8 + -8 = 0

0 + -1z = 0 + -8

-1z = 0 + -8

Combine like terms: 0 + -8 = -8

-1z = -8

Divide each side by '-1'.

z = 8

Simplifying:

z = 8

Solution

z = {-7, 8}

4 0
3 years ago
In a sample of 150 cars, 18 cars failed a safety inspection. The sampling method had a margin of error of 0.02.
torisob [31]

Answer:

(0.10,0.14)

Step-by-step explanation:

-Given the sample size is 150 and our proportion is 18.

-We first determine the proportion's probability:

\hat p=\frac{x}{n}\\\\=\frac{18}{150}\\\\=0.12

-The interval estimate for the proportion is then calculated using the formula:

CI=\hat p\pm MOE\\\\=0.12\pm 0.02\\\\=[0.10,0.14]

Hence, the interval estimate is for the proportion (0.10,0.14)

8 0
4 years ago
If the mean of the four numbers 4, 8,x and 12 is 10,then x is
ohaa [14]

Answer:

x = 16.

Step-by-step explanation:

hope this helps

8 0
3 years ago
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