Answer:
x = - 6, x² = [tex]\frac{7}{2}[/tex]
Step-by-step explanation:
[tex]2x^{2}[/tex] + 12x - 7x - 42 = 0
2x^{2} (x + 6) - 7 (x + 6) = 0
(x + 6) x (2x - 7) = 0
x + 6 = 0
2x - 7 = 0
x = - 6
x = [tex]\frac{7}{2}[/tex]
x = - 6, x² = [tex]\frac{7}{2}[/tex]
A baby weighs 18 pounds at her four-month appointment. Six months later she weighs 24 pounds. By what percentage did the baby's weight increase?
Answer:
33.33%
Step-by-step explanation:
We know that:
At her four month weighs: 18 pounds.
Six month later weighs: 24 pounds.
So, the baby increased 6 pounds. But, what percentage represents?
To solve this problem we use the rule of three:
If 18 pounds represents 100%, 24 pounds what percentage would be?
So, if we subtract 100%-133.33%, we have a 33.33% more. This means that the baby increased a 33.33% during those six months.
On a road map, 1 inch represents 2.25 miles. Which statement or graph correctly represents this relationship? Select all that apply.
Answer:
2.25 inches
Step-by-step explanation:
Answer:
2.25 in
2.25 m
Step-by-step explanation:
A 32-foot ladder leans against a building. The distance between the bottom of the ladder and the base of the building is
8.5 feet. What is the height, in feet, from the ground to the place on the building that the ladder touches? Round your
answer to the nearest tenth.
Answer:14
Step-by-step explanation:
happy 5685757
The height at which the ladder touches the building is required.
The height of building where the ladder touches the building is 30.9 feet.
Pythagoras theorema = Required height
b = Distance between the bottom of the ladder and the base of the building = 8.5 feet
c = Length of ladder = 32 feet
From the Pythagoras theorem we have
[tex]a^2+b^2=c^2\\\Rightarrow a=\sqrt{c^2-b^2}\\\Rightarrow a=\sqrt{32^2-8.5^2}\\\Rightarrow a=30.9\ \text{feet}[/tex]
Learn more about Pythagoras theorem:
https://brainly.com/question/343682
Please Jesus God this is so important
Answer:
c
Step-by-step explanation:
Solve each system by elimination. 3x - 2y = 1 2x + 2 y = 14
Write 18 as a product of its prime factors
Answer:
1, 18, 2, 9, 3, 6
I think
Answer:
Down Below!
Step-by-step explanation:
18 = 1 x 18, 2 x 9, or 3 x 6
Prime Factors: 18 = 2 x 3 x 3
Factors of 18: 1, 2, 3, 6, 9, 18
HELP ME ASAP PLEASE?!?
Find the length of the missing side. Simplify all radicals.
Which of the following ratios are not equivalent to 7 : 3?
Multiple choice question.
A)
14 : 3
B)
14 : 6
C)
21 : 9
D)
28 : 12
How do you solve this?
three components of the term
Answer: “5” is an exponent
Step-by-step explanation:
What is the answer to ...8.42 x 9
Answer:
75.78
Step-by-step explanation:
8.42*9=75.78
Answer:
75.78
Step-by-step explanation:
8.42 × 9 = 75.78
Approximately 55% of the 750 pupil student body voted for Suresh for student body president. How many students voted for him?
338
4125
750
412
Answer:
Step-by-step explanation:
23
Answer:
4125
Step-by-step explanation:
hope u have a good day
Use distributive property to rewrite expression -8((-2-3/4)-8)
Answer:
-86
Step-by-step explanation:
-8((-11/4)-8)
((11/4-8)
8x(-43/4)
-2×43=-86
River C is 100 miles longer than River D. If the sum of their lengths is 5,500 miles, what is the length of each river?
Answer:
river C is 2850 and river B is 2650
P(x) = 3x3 - 3x2 + x - 1?
Answer:
Step-by-step explanation:
Find X (-2x + 35 ) yd, 27yd, (4x-1)yd
Answer: 10 hope this helps^^
Step-by-step explanation: 2(27)= -2x+35+4x-1
=10 (answer)
took the quiz as well
An expression is shown 7/4 - ?/7 = 1 1/28 What is the missing number?
Answer:
i pretty sure the missing number is 4
Step-by-step explanation:
PLEASE ANSWER FAST this is homework and my teacher is giving us time to do it even if the deadline passed I don't know fractions
Answer:
Step-by-step explanation:
5/7
UP
TCY Social Studies
n.org/student/149020523/activity/9c41613
TCI Student Sign-In-Te...
-Ready
Home
now...
ESSON 19 - PRACTICE BOOK PAGES 203-204
/ UNIT 4 GEOMETRY / LESSON 19 - UNDERSTANDING CONDITIONS FOR DRAWING TRIANGLES
+
110%
t for credit.
2 / 2
ing Triangles PG 203-204 PRA...
6 Carrie ripped up a triangle and rearranged the corner
pieces of the triangle so that the sides touch and the
vertices meet at the same point. What do you notice?
Doa
this page to answer
Answer:
................................................................................................................................................................................................
Step-by-step explanation:
A cylinder has a height of 14 centimeters and a radius of 17 centimeters. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
Find x and y
(45-45-90 formula)
Answer:
x-intercept(s):
None
y-intercept(s):
90
Step-by-step explanation:
To find the x-intercept, substitute in 0 for y and solve for x. To find the intercept, substitute in 0 for x and solve for y.
What two integers does 226 lie between?
Three years ago, claire borrowed money from her father to pay for a class trip. She agreed to pay him 6% simple annual interest on the loan. Now she owes him 90$ in interest, plus the principal amount. How much did Clare borrow? The answer is 500, but how did you get that answer correctly? Step by step can u show me?
Answer:
Below
Step-by-step explanation:
6% simple annual interest on the loan for 3 years so 6x3=18
So the interest of the whole amount is 18%, so now you got to find what of 18% is 90
This looks like (initial amount)x(number)%=(final amount)
x=initial amount
number%=18
final amount=90
All percentages are just number%/100. So we have either 18/100, or .18 depending on how you want to work it.
So now we do 90÷0.18 which gives you the answer 500
WILL MARK BRAINIEST IF RIGHT PLS ANSWER QUICK
Answer:
the last one
Step-by-step explanation:
Answer:
A) It deals with synthetic or superficial genes and traits like color, markings, size, and speed.
Find the circumference of the circle. Use 3.14 and the symbol that it shows
Answer:
r=d/2=18/2=9cm
circumference=2πr=2×3.14×9=56.52cm
Round 7,127 to the nearest hundred.
Answer:
7,100
Step-by-step explanation:
last question! please help this is due today!!!
someone pls help for brainliest :)
Answer:
It might be the the 1st or the 4th :)
Step-by-step explanation:
I HOPE IT HELPED!!!!
Given the following function
y = -1/2 (x-2)2+3
Find the vertex, y-intercept, and x intercepts.
help help help please im begging!! its trigonometry and its due tonight I'm so confused please help me out
Step-by-step explanation:
Its the bottom question sir
Find the discriminant and the number of real roots for this equation.
4x + 12x + 9 = 0
A. O; two real roots
B. 0; one real root
C. -144; one real root
D. -144; no real roots
SUBMIT
Answer: 0; one real number
Step-by-step explanation:
