Answer:
a = 1, b = - 2, c = - 4
Step-by-step explanation:
[tex]x(x - 2) = 4 \\ \\ {x}^{2} - 2x =4 \\ \\ {x}^{2} - 2x - 4 =0 \\ equating \: it \: with \: \\ a {x}^{2} + bx + c = 0 \\ \\ a = 1 \\ b = - 2 \\ c = - 4[/tex]
I need help on the stared ones( I WILL MAKE YOU BRAINIEST)!
Answer:
Step-by-step explanation:
bottom left is 13a + 2b
bottom right is 15y - 6
Answer:
1) 13a + 2b
2) 15y² - 6
Step-by-step explanation:
3a + 2(b + 5a)
3a + 2b + 10a
13a + 2b
3y² + 3(4y² - 2)
3y² + 12y² - 6
15y² - 6
Can someone help me do 13, 14 and 15 thank u
Answer:
Step-by-step explanation:
find the length of x
Answer:
B
Step-by-step explanation:
Law of Sines:
Sin(a)/opposite side=Sin(b)/opposite
Sin(55)/x=sin(90)/59
Sin(55)/(Sin(90)/59)
sin(90)=1
Sin(55)/(1/59)
59Sin(55)=48.33
Please mark brainliest :)
PLS PLS HELP: GRADE 7 MATH!!!!!
Answer:
B and D
Step-by-step explanation:
cv0627 answer this :))
they took my first answer off, so i came back. but honestly thank you for the points. have an amazing day!
Write a rule for the function.
24.
Input, x
Output, v
0
6
1
7
8
25.
1
Input, x
Output, y
0.1
10
0.3
30
20
Answer:
:--------------------------------)
Solve for x
3-4x = -29
Answer:
x = 8
Step-by-step explanation:
3 - 4x - 3 = -29 - 3
-4x = -32
then divide both sides by -4
Write the polynomial in descending order: 4x + 3x^2 - 1
Group of answer choice
A. 3x^2 + 4x - 1
B. 1 - 4x + 3x^2
C. -1 + 3x^2 + 4x
D. 4x + 3x^2 - 1
Answer:
3x^2+4x+1
Step-by-step explanation:
Given the polynomial function 4x + 3x^2 - 1
Rearranging in descending order means that we are to arrange the degree power from the highest to the lowest.
The term with the highest degree is 3x^2
Followed by 4x
Then the constant 1
Adding according to the descending powers
The polynomial in descending order will be 3x^2+4x+1
Answer:
It’s A!
Step-by-step explanation:
took the test :)
can I get a tutor in math please. I need help in quadratic equation
Answer:
sure i can help
Step-by-step explanation:
Answer:
sure
Step-by-step explanation:
Can someone please help me I'm stuck on this question im in desperate need of help
Answer:
A
Step-by-step explanation:
Point L's coordinates' difference is 7.
Point C's is 1.
Point H's is 2
And Point A's is 1
Hope that helps!
Answer:
A) Point L
Step-by-step explanation:
Point L (8,1)
8 for the x-axis and 1 for the y-axis
So the difference =(8-1-=7
While point A=(9-10)=-1
Point C=(2-3)=-1
Point H=(4-6)=-2
Last week, a chocolate shop sold 2 ounces of white chocolate. It sold 2 1/10 times as much milk chocolate as white chocolate. How many ounces of milk chocolate did the shop sell?
Answer:
21 ounces
Step-by-step explanation:
Milk chocolate sold was 2 1/10 times more than white chocolate
If two ounces of white chocolate was sold.
The total ounces of milk chocolate sold = [tex]2\frac{1}{10}[/tex] × 2
= [tex]\frac{21}{2}[/tex] × 2 = 21 ounces
Ms. Aluma is 165 cm tall. She wants to find her height in meters. Divide her height in centimeters by 100 to find her height in meters.
1.65 meters...........
Unit conversion is a way of converting some common units into another without changing their real value. Ms. Aluma is using the correct option.
What is Unit conversion?Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimetre is equal to 10 mm, though the real measurement is still the same the units and numerical values have been changed.
Given that Ms Aluma is 165 cm tall and She wants to find her height in meters. Therefore, if we divide her height in centimeters by 100 to find her height in meters.
Since 1 meter is equal to 100 cm, therefore, the method used by Ms. Aluma is correct. Therefore, the height of Unit conversion is,
Height of Ms. Aluma = 165 cm
= 165/100 meters
= 1.65 meters
Hence, Ms. Aluma is using the correct option.
Learn more about Units conversion here:
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PLEASE HELP WHAT IS THE ANSWER SHOW WORK PLEASE !!!
Answer:
d = 6.1m
n = 7km
Step-by-step explanation:
To find the variables, use tan
⇒ tan = [tex]\frac{opposite}{adjacent}[/tex]
finding d:
⇒tan 63 = [tex]\frac{d}{3.1}[/tex]
tan of 63 is 1.963
⇒ 1.963 = [tex]\frac{d}{3.1}[/tex]
multiply 3.1 on both sides
⇒ 1.963 x 3.1 = [tex]\frac{d}{3.1}[/tex] x 3.1
⇒ 6.0853 = d
round to the nearest tenth:
⇒ 6.0853 = 6.1
finding n:
⇒ tan 45 = [tex]\frac{7}{n}[/tex]
tan of 45 is 1
⇒ 1 = [tex]\frac{7}{n}[/tex]
multiply 7 on both sides:
⇒ 1 x 7 = [tex]\frac{7}{n}[/tex] x 7
7 = n
Answer:
D = 1.4, N =
Step-by-step explanation:
To get D you need to find the cosine of 63 degrees
Cosine(63) = D / 3.1
Multiply by 3.1 to isolate D :
3.1Cosine(63) = D
Put it into a calculator and you'll get 1.4.
Also, it's a 45-45-90 triangle so the 2 legs will be equal to each other.
Proof: To get N put you have to do the tangent of 45 degrees
Tan(45) = 7 / N
Now you can't to do this you have to multiply the both sides by N
N(tan(45)) = 7
Then divide both sides by (tan(45))
N = 7 / (tan(45)
Put it into the calculator and you'll get
Im giving Brainliest to the correct answer
Answer:
Step-by-step explanation: ..............
A circle has a circumference of 34 54 cm. What is the area of the circle to the nearest whole centimeter? Use 3.14
A. 95 cm B. 11 cm С 108 cm2 D 380 cm
Answer:
9498.5 mStep-by-step explanation:
We know that the Circumference = 3454 cm
And we also know that the formula for the Circumference of Circle is,
[tex]2\pi \times r[/tex]
So we can put the equation this way,
[tex]3454 = 2\pi \times r[/tex]
So we can solve for 'r'
[tex]3454 = 2 \times 3.14 \times r \\ 3454 = 6.28r \\ r = \frac{3454}{6.28} \\ r = 550[/tex]
Now we have radius and we can solve for the area of the circle,
[tex]\pi \times {r}^{2} [/tex]
[tex]3.14 \times 550 \times 550 \\ = 949850[/tex]
We can convert this to meter,
9498.5 m
I am not sure if this is correct just let me know thanks :)
(a) Write 9.1% as a decimal,
(b) Write 0.216 as a percentage
Answer:
a) 0.091
b) 21.6%
Step-by-step explanation:
a) divide by 100
b) multiply by 100
Ana gets paid $10 plus $2 for each car she washes. On
Saturday, she earned $26. How many cars did she wash on
Saturday?
Answer:
Ana washed 8 cars.
Step-by-step explanation:
x=amount of cars washed
26=2x+10
16=2x
x=8
Please help me with finding the length of AC. I’ll make this 20 points since it’s kinda long. Please don’t guess my grades depends on it
Since the triangle is a right angled, to find one side we should use the pythagoras theorem.
The longed side of the triangle is called the hypotenuse.
In equation form: x² + y² = z²
Therefore: 12² + x² = 13²
114+x²= 169
x²= 169-114
x²= 55
x = 7.41
Therefore the length of AC = 7.41
Find the value of x.
Answer:
idont have a clue
Step-by-step explanation:sorry
Answer:
38
Step-by-step explanation:
**The sum of all the angles in a triangle is 180 degrees**
So 99 + 43 + x = 180
99 + 43 = 142 degrees
x = 180 - 142 = 38
Name a pair of Vertical Angles.
Vertical angles are a pair of non-adjacent angles formed when two lines intersect. you only told me to name a pair but i dont know what u mean you didn't give a diagram.
HELP ILL GIVE BRAINLIEST
Answer: The answer is B
Hope this helped love<3
help!! i’m super confused on these math question explain !!
Which of the following tables does NOT show a proportional relationship?
Answer:
B
Step-by-step explanation:
First, a proportional ratio needs to have same equivalent fraction when simplified. So, for the option B, 5/10 can reduce to 1/2 whereas 6/11 and 7/12 do not reduce to 1/2. Therefore, the option B doesn't have a proportional relationship.
Hope this helps!
Enrique deposited $4,700 into an account. He made no additional withdrawals or deposits. Enrique earned 1.65% annual simple interest on the money in the account.
What was the balance in his account at the end of 4.5 years?
Enter the amount in the account in the box.
Step-by-step explanation:
principle (p) = $4700
rate (r) = 1.65%
time (t) = 4.5 years
interest = (p × r × t)÷100
= ($4700 × 1.65 × 4.5)÷100
= $348.975
__________________FOLLOW METhe balance in his account at the end of 4.5 years is $5048.975.
What is simple interest?Simple interest is a method of calculating the interest charge. Simple interest can be calculated as the product of principal amount, rate and time period.
Simple Interest = (Principal × Rate × Time) / 100
Given;
Enrique deposited $4,700 into an account.
Enrique earned 1.65% annual simple interest on the money in the account.
Time= 4.5
Now,
SI= 4700*1.65*4.5/100
SI=348.975
Total= 4700+348.875
=5048.975
Therefore, the amount after simple interest of 1.65% will be $5048.975.
Learn more about simple interest here;
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Find MP.
the measure of MP is
Answer:
54
Step-by-step explanation:
54
Formula of perimeter square is
a) L×B
b) 2×(L+B)
c) 4×side
Answer:
B
Step-by-step explanation:
Is 14/32 and 21/56 proportional
Answer:
no
Step-by-step explanation:
: Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.
What’s 4x + 3 = 2x + 23 ?
Answer:
= 10
Hope this helps if so don't hesitate to 'Thanks' and/or 'brainliest' this answer!
A company uses paper cups shaped like cones for its water cooler. Each cup has a height of 12 cm, and the base has a
radius of 3.5 cm. How much water is needed to fill 50 cups?
Use 3.14 for pi and do not round your answer.
Answer: 7693cm
Step-by-step explanation:
The volume of a cone is given as:
= 1/3πr²h
where π = 3.14
radius = 3.5cm
height = 12
Volume = 1/3πr²h
= 1/3 × 3.14 × 3.5² × 12
= 153.86cm³
Therefore, the amount of water that is needed to fill 50 cups will be:
= 153.86 × 50
= 7693cm
Tell whether the angles are complementary or supplementary. Then find the value of x.
I NEED HELP ASAP!
Answer: Complementary angles. x = 60
How I got it.
x - 30 + x = 90
then solve for x
Hope this helps!