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
jolli1 [7]
3 years ago
11

How to simplify -5 1/4-(-7 1/2

Mathematics
1 answer:
ruslelena [56]3 years ago
4 0

Answer:

Exact Form:

9/4

Decimal Form:

2.25

Mixed Number Form:

2 1/4

Step-by-step explanation:

You might be interested in
The tread life of a particular brand of tire is a random variable best described by a normal distribution with a mean of 60,000
valina [46]

Answer: 61,750 miles

Step-by-step explanation:

Given : The p-value of the tires to outlast the warranty = 0.96

The probability that corresponds to 0.96 from a Normal distribution table is 1.75.

Mean : \mu=60,000\text{ miles}

Standard deviation : \sigma=1000\text{ miles}

The formula for z-score is given by  : -

z=\dfrac{x-\mu}{\sigma}\\\\\Rightarrow\ 1.75=\dfrac{x-60000}{1000}\\\\\Rightarrow\ x-60000=1750\\\\\Rightarrow\ x=61750

Hence, the tread life of tire should be 61,750 miles if they want 96% of the tires to outlast the warranty.

3 0
3 years ago
What is the a-value of the function, then determine if the graph opening up or down f(x)=−5(x+7)2+6?
Kay [80]
We know that
the equation of the vertical parabola in the vertex form is
<span>y=a(x-h)²+k
</span>where 
(h,k) is the vertex of the parabola
if a> 0 then
 the parabola opens upwards

if a< 0
then the parabola open downwards

in this problem  we have
f(x)=−5(x+7)²<span>+6
</span>a=-5
so
a< 0 -------> the parabola open downwards

the vertex is the point (-7,6) is a maximum

the answer is the option
<span>a = -5, opens down</span> 

see the attached figure

6 0
3 years ago
Read 2 more answers
State if a triangle is acute, obtuse, or right.
almond37 [142]
The answer is A) Right because the lengths 3 cm and 3 cm are obviously the same so it will form a right angle
6 0
3 years ago
Read 2 more answers
In 3-8, find the missing side length of each right triangle. 50yd.<br> 30yd.
denis23 [38]
Hi! so you didn’t let us know which side length is missing and it kind of matters so i’ll attach an image so you can just copy the one that looks most like yours.

7 0
3 years ago
8(x) = x^3 - 3<br> What is the value of x when g(x) = 24? Enter the answer in the box.
IRINA_888 [86]

Answer:

x=3

Step-by-step explanation:

x³ - 3 =24

x³ = 27

x = 3

6 0
3 years ago
Other questions:
  • A 3-column table with 6 rows. Column 1 is labeled Month with entries July, August, September, October, November, December. Colum
    14·2 answers
  • A line with slope 3.5 and y-intercept (0,4) Show work
    5·1 answer
  • 12. Describe the shape that would result from a vertical slice of the figure below
    10·1 answer
  • SOLVE FOR L:. ( -7.4 ) + L = 9.11
    13·2 answers
  • Each batch of Mrs. Crawley’s Toffee makes 14 pieces of toffee. If sandy needs 8 dozen pieces of toffee, how many batches does sh
    10·2 answers
  • Which numbers are solutions to the inequality 2x – 1 &gt; x + 2? Check all of the boxes that apply
    12·1 answer
  • What is the vertex of the function h(x)=|x+6|+3
    15·1 answer
  • What is the percent of change from 45to56
    11·2 answers
  • pls help!! A cylindrical vase has a diameter of 12 inches and a height of 12 inches. If the vase is filled 3/4 full of soil, how
    15·1 answer
  • Ms. Hannah goes bowing with her friends. The bowing shoe rental for the group costs $22. Each game the group bows costs $7 25.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!