1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IRINA_888 [86]
3 years ago
12

What is the value of z in the equation 4 x 2- z=7?

Mathematics
2 answers:
Marrrta [24]3 years ago
6 0

Answer:

Z = 1

Step-by-step explanation:

Simplify the equation using PEMDAS.

4 x 2 - z = 7

8 - x = 7

- x = 7 - 8

-x = - 1

x = 1

saw5 [17]3 years ago
3 0
Z=1

Hope this helped! :)
You might be interested in
2b to the power of 2 = 100 i want to know if this question is true or false, someone help me pleaseee.
OLEGan [10]

Answer

5

Step-by-step explanation:

10^2= 100

so b must be 5

6 0
2 years ago
Question 6 (2 points)
Orlov [11]

Answer:

Blank 1: (-7,0)

Blank 2: (-1,0)

Step-by-step explanation:

Plug x=0 into the equation and solve the resulting equation y=7 for y

Plug y=0 into the equation and solve the resulting equation 0=(x+1)(x+7) for x

6 0
2 years ago
a survey was taken of children between the ages 7 and 12. let A be the event that the person rides the bus to school, and let B
galben [10]

Answer:

The statement is true about whether A and B are independent eventa is fourth option:

A and B are not independent events because P(A/B)=0.375 and P(A)=0.25

Step-by-step explanation:

Let A be the event that the person rides the bus to school, then:

P(A)=75/300

P(A)=0.25

Let B be the event that the person has 3 or more siblings, then:

P(B)=24/300

P(B)=0.25


P(A/B)=9/24

P(A/B)=0.375


Like P(A/B)=0.375 is different to P(A)=0.25 the events are not independent


Answer. Fourth option:

A and B are not independent events because P(A/B)=0.375 and P(A)=0.25

8 0
3 years ago
Read 2 more answers
Let f (x ) = 3x² - 4 and let g (x) = 2x + 1. <br> Find the value of f[g(2)].
stepan [7]

Answer:

The value of f[g(2)] is 71.

Step-by-step explanation:

We need to find f[g(2)].

The first step is finding f[g(x)]

We have that:

f(x) = 3x^{2} - 4

g(x) = 2x + 1

To find f[g(x)], the first step is replacing each x is f by g(x). So

f(g(x)) = 3(2x+1)^{2} - 4

Now we replace x by 2

f(g(2)) = 3(2*2+1)^{2} - 4 = 75 - 4 = 71

The value of f[g(2)] is 71.

3 0
3 years ago
Read 2 more answers
How many 3 3/4 inch wires can be cut from a spool of wire that is 100 inches long. Will there be any wire left over? If so, how
lisabon 2012 [21]
You \ have\ to\ divide\ 100\ by\ 3\frac{3}{4}:\\\\100:3\frac{3}{4}=\\\\\frac{400}{4}:\frac{15}{4}=\\\\\frac{400}{4}\cdot\frac{4}{15}=\\\\\frac{400}{15}=\frac{80}{3}=26\frac{2}{3}\\\\Can\ be\ cut\ 26\ wires.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Round 3.962 to the nearest tenths
    12·2 answers
  • Using the digits 0, 3, 4, 5 and 6, and any mathematical signs, can you make an expression equal to 8?
    13·1 answer
  • Use the Distributive Property to multiply. 9(4m + 1) A. 36m + 9 B. 45m C. 36m + 1 D. 13m + 9
    14·1 answer
  • 16x2 - 8x + 1 is an example of a ______​
    12·1 answer
  • PLEASE HELP I WILL MARK BRAINLIEST
    10·1 answer
  • Assume the random variable x is normally distributed with mean u = 90 and standard deviation o=5. Find the indicated probability
    15·1 answer
  • Calculate the measurement of x, please explain how to find answer
    6·1 answer
  • A car purchased for $43,000 is worth $40,125 after being used for one year. How much will the car be worth in 7 years?
    7·1 answer
  • A stairway rises 6 feet 4 inches over a horizontal distance of 8 feet 6 inches. What is the diagonal length of the stairway
    6·1 answer
  • Question 3(Multiple Choice Worth 4 points)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!