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4 years ago

Given: y = 3x - 4. What is the x-intercept? (0, -4) (0, 4/3) (4/3, 0)

Mathematics

2 answers:

Annette [7]4 years ago

6 0

Answer:

4/3, 0

Step-by-step explanation:

lyudmila [28]4 years ago

4 0

The x-intercept is a point whose y-coordinate is 0, so (x,0).
Substitute 0 for y in the equation:
$y=3x-4 \\ 0=3x-4 \\ 4=3x \\ x=\frac{4}{3}$

The x-intercept is $(\frac{4}{3}, 0)$ .

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There are 5 exams in a semester. You have scored 77, 90, 85, and 100 on the previous four exams. What must you make on the fifth

siniylev [52]

Answer:

<h2>The correct answer for this question is 78.</h2>

Step-by-step explanation:

The average or mean of any variable or mathematical phenomenon is calculated as the division of the sum of all the numbers or items within the particular variable by the total number of items or numbers within the variable.
In this case, the marks of the 4 exams in the semester are 77,90,85 and 100 respectively.There are total 5 exams in the semester.
Let's suppose that the marks for the 5th exam is x.
Therefore, based on the mathematical formula to compute average or mean,to get an overall average of 86 including all the 5 exams, one has to get:-

$\frac{77+90+85+100+x}{5}=86$

$77+90+85+100+x=430$

$x=430-77-90-85-100$

$x=78$

Hence, based on the above calculations,one has has to get 78 on the 5th exam to obtain an overall average of exactly 86.

5 0

4 years ago

Just want to check to make sure this is right. I got 81 as the average so D seemed right.

sergiy2304 [10]

Im not 100% sure but im pretty sure you are right brother! God bless...Good luck!

6 0

4 years ago

PLASE HELP!!! I WILL GIVE BRAINLIEST!!!

zhannawk [14.2K]

0.43 =

3/100 = 0.03

+

4/10 = 0.4

0.03 + 0.4 = 0.43.

Hope this helped☺☺

4 0

3 years ago

Read 2 more answers

A trapezoid has an area of 13.5 square inches. If the bases are 3 and 6 inches what is the height?

liraira [26]

Well the formula is : b1+b2/2 (h)

so the height would be solved as :
13.5 = 3+6/2 (h)
13.5 = 9/2 (h)
h = (13.5)/(9/2)
h = (13.5) x (2/9) *reciprocal*
h = (27) / (9)
h = 3

5 0

3 years ago

According to a college survey 32% of all students work fulltime. Find the mean for the number of students who work full time in

VLD [36.1K]

Answer:

mean is equal to 5.12

Step-by-step explanation:

<em>We are given that 32% of college students work fulltime. We have to find the mean for the number of student s who are working full time in a sample of 16</em>

success rate, p = 32% = 0.32

Sample size is denoted as n = 16

The forumla of mean is given as

mean = sample size × success rate

mean = n × p

= 16 × 0.32

= 5.12

3 0

3 years ago