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aleksandrvk [35]
3 years ago
9

Number 4 solve , thanks.

Mathematics
2 answers:
fenix001 [56]3 years ago
7 0
I believe the correct answer is A

Ur welcome
Mariana [72]3 years ago
6 0

Answer:

The answer is option 1

Step-by-step explanation:

In order to find the value of z, you have to get rid of all the unrelated variable :

7 -  \sqrt{3z + 2}  = 4

-  \sqrt{3z  +  2}  = 4 - 7

-  \sqrt{3z + 2}  =  - 3

\sqrt{3z + 2}  = 3

3z + 2 =  {3}^{2}

3z + 2 = 9

3z = 7

z =  \frac{7}{3}

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10. Which of the following statements are TRUE?
Masja [62]

Answer:

A, C, D

Step-by-step explanation:

1) A triangular pyramid has the same number of faces as vertices: 5

2) C - The sum is 5 + 6 =11

3) D - Euler's Formula tells us that if we add the number of faces and vertices together and then subtract the number of edges, we will get 2 as our answer.

4 0
3 years ago
last week Rachel power walked 2 3/5 miles per day on each of the 7 days. During the same week, she also jogged 5 3/4 miles per d
Andrej [43]
41.2 miles is the answer
5 0
3 years ago
What is 11 1/2 + 10 11/16=
ahrayia [7]

Hey!



To solve this equation, we must first convert the mixed numbers into improper fractions. To do that we'll multiply the denominator by the whole number and add the total to the numerator.


<em>Original Equation :</em>

11\frac{1}{2} + 10\frac{11}{16} = ?


<em>New Equation {Converted Mixed Numbers Into Improper Fractions} :</em>

\frac{23}{2} + \frac{171}{16} = ?


Now that we've successfully changed our equation, we'll move onto the next step. Next we'll have change the fractions one more time so that the denominators are the same. To do that we'll multiply two by eight to get sixteen. We'll also be multiplying the top portion of the fraction by eight, because whatever you do to the bottom must also be done to the top; And vise versa.


<em>Fraction Conversion :</em>

\frac{23*8}{2*8} = \frac{184}{16}


So, now that we have our new fraction we can go ahead and plug that into our equation so we can start adding. Remember, we don't add the denominators, just the numerators.


<em>Old Equation :</em>

\frac{23}{2} + \frac{171}{16} = ?


<em>New Equation {Input New Fraction With Common Denominator} :</em>

\frac{184}{16} +\frac{171}{16} = ?


<em>Solution {New Equation Solved} :</em>

\frac{355}{16}


Now I'm not exactly sure how your instructor will accept your answer, but most prefer the final answer to be in the simplest form. In other words, they don't want it in the form of an improper fraction. They'd most likely rather have it as a mixed number.


<em>New Solution {Converted to a Mixed Number} :</em>

22\frac{3}{16}


Since the fraction cannot be simplified anymore, this should be our final answer.

<em>So, this means that the answer to the equation is </em> 22\frac{3}{16}.


Hope this helps!



- Lindsey Frazier ♥

5 0
3 years ago
Read 2 more answers
Hellllp please
Aneli [31]

Answer:

y = 5/8x - 3

Step-by-step explanation:

(8,2) and (-8,-8)

m=(y2-y1)/(x2-x1)

m = ( -8 -2)/ (-8 - 8)

m = (-10)/(-16)

m = 5/8

y - y1 = m(x - x1)

y - 2 = 5/8(x - 8)

y - 2 = 5/8x - 5

y = 5/8x - 3

3 0
2 years ago
NEED HELP ASAP i don’t know the answer
Effectus [21]
It’s A, pls mark brainliest
4 0
3 years ago
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