Answer:
7
Step-by-step explanation:
because if you add 10+7 17 17+7=24
Evaluate -15cos60°.
A. -0.5
B. -7.5
C. -14.5
Answer:
B
Step-by-step explanation:
make sure calculator is in degrees mode and insert equation to get -7.5
Mrs. Castro left her parents' house in the province and drove home.
After driving for 3 hours, she was 90 km from home, and after
5 hours, she was 25 km from home. Assuming that the distance from
home and the number of hours driving form a linear relationship,
how long did it take Mrs, Castro to drive from her parents' house
to her home? How far was Mrs, Castro from home after driving
6 hours? How long had Mrs. Castro been driving when she was
50 km from home?
Answer:
Distance problems are word problems that involve the distance an object will travel at a certain average rate for a given period of time.
The formula for distance problems is: distance = rate × time or d = r × t.
Step-by-step explanation:
I think that is the answer bc?
3.
Find two numbers whose product is -6 and whose sum is 1.
Answer:
-2, 3
Step-by-step explanation:
yeah that's it I don't have any explanation or formula
let the numbers be x and y
xy = -6
x + y = 1
from x + y = 1
y = 1 - x
x(1 - x) = -6
x - x² + 6 = 0
-x² + x + 6 = 0
on solving,
x = -2 or x = 3
y = 1 - (-2) = 3
y = 1 - 3 = -2
x1 = -2, y1 = 3.
x2 = 3, y2 = -2.
A little boy accidentally let go of his balloon, and it floated away. It was 3 feet above the ground when he let go, and it steadily rose 3 feet per second. Write an equation that shows the relationship between the number of seconds since the boy let the balloon go, x, and its elevation in feet, y.
The equation that shows the relationship between the number of seconds since the boy let the balloon go is y = 3x + 3.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, A little boy accidentally let go of his balloon, and it floated away. It was 3 feet above the ground when he let go this height is our constant value in the function.
It steadily rose 3 feet per second.
Assuming time in seconds to be x and total height is y.
∴ An equation that shows the relationship between the number of seconds since the boy let the balloon go is,
y = 3x + 3.
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47,40,45,38,43,36,41 what comes next in sequence?
Answer:
34
Step-by-step explanation:
The sequence is -7 then +5
Is 6 a solution to the equation? Show your work.
Answer:
yes I think 6 is a solution to the equation
Can't see the equation sorry... Don't think you can change your question you typed either
[tex]4 {x}^{2} - {8}x + 3 = 0[/tex]
solve using quadratic equation
help plsss
Answer:
x = 1.5 or x = 0.5Step-by-step explanation:
Given equation:
4x² - 8x + 3 = 0Find the discriminant:
D = b² - 4ac = (-8)² - 4*4*3 = 16The roots are:
x = (-b ± √D)/2a = (8 ± √16)/(2*4) = (8 ± 4)/8 = 1 ± 1/2x = 1.5 or x = 0.5So
x=(8±√8²-4²(3))/2(4)x=(8±√64-48)/8x=(8±4)/8x=1±1/2So
x=3/2 or 1/2
Suppose the temperature outside is dropping 3 degrees each hour. How much will the temperature change in 8 hours?
Answer:
24 degrees
Step-by-step explanation:
doesn't matter how you set up the fractions, just make sure the degrees are both on top or both on bottom
3°/1 hr = ?°/8 hours
cross multiply
3 x 8 = ? x 1
24 = ?
Please someone help me
Answer:
i think the answer is 36.......
Toilet rolls come in packs of 4 and 9 the 4pack is priced at £2.04 the 9 pack is priced at 4.68 by calculating the price per roll determine which pack is better value
Answer:
The four pack of toilet paper is the better value.
Step-by-step explanation:
Divide £2.04 by 4 to figure out the price per roll in the pack of 4.
£0.5
Divide £4.68 by 9 to figure out the price per roll in the pack of 9.
£0.52
simplify (a+3)-2(4+a)+5a_4
Answer:
it is 4a-9....................
Fill in the _______ with the correct answer. Use numerals instead of words. If necessary, use / for the fraction bar.
Becca has a biscuit recipe that uses of a tablespoon of salt for every of a cup of flour. In order to have enough biscuits for her family that is visiting, Becca is making a batch of biscuits using 3 cups of flour and ________ tablespoons of salt.
Answer:
3 tablespoons
Step-by-step explanation:
The ratio is 1tsp of salt:1 cup of flour
if she is using three cups of flour the increase would be times 3 therefor she uses 3(1)tsp of salt. (3 table spoons)
Select two ratios that are equivalent to
6: 10
Which could be used to evaluate the expression -6(4 2/3)?
Answer:
The answer is A
-6[4 2/3]
= -6[4+2/3] because 4 2/3 is 4 and 2/3rds
so a(b+c) = a(b) + a(c)
so -6(4) + -6(2/3)
Find the angle
25 points for you plus a thanks, 5 star and brainliest
Answer:
43,81
Step-by-step explanation:
sin ? = 9/13
sin ?= 43,81
What is -32(-5.6)(4) Please help I'm confused
Answer:
717.8 inches
Step-by-step explanation:
It is an obtained solution to an equation which makes the original equation undefined.
A.rational root
B.irrational root
C.imaginary root
D.extraneous root
look below !!!! !!!!!!!!!!
Answer:
5/4 is the answer
Step-by-step explanation:
1.5 ÷ 2.5 round to nearest tenth
Is (x – 3) a factor of the polynomial: 2x8 – 5x? - 8x + 15 ?
HELPPPPPP MEEEEEEE ITS DUE SOON
what is 12 x 12 divided by 5 x 4 divided by 2 need a good answer
Step-by-step explanation:
12*12/5*4/2
3.6 answe .....
Answer:
12 x 12 = 144
Divided by
5 x 4 = 20
so 144/20 times 1/2 = 3.6
I’m so confused can someone give me the answer
Answer:
sure whats up i would love to help just tell me what u need help with.. :)
Step-by-step explanation:
Answer: 42
Step-by-step explanation:
I'd love to help but theres no question- and after all the answer to life, the universe, and everything is 42.
You multiply two integers. You increase one of them by 1 and decrease the other
by 1. The product increases by 6. What integers could you have multiplied?
Integers are numbers without decimals
The integers could you have multiplied are 9 and 2
Let the numbers be x and y
So, we have:
[tex]\mathbf{x \times y}[/tex]
Increase x by 1 and reduce y by 1.
So, we have
[tex]\mathbf{(x +1) \times (y -1) = 6 + xy }[/tex]
Open brackets
[tex]\mathbf{xy -x + y - 1 = 6 + xy}[/tex]
Subtract xy from both sides
[tex]\mathbf{ -x + y - 1 = 6}[/tex]
Collect like terms
[tex]\mathbf{ -x + y = 6 + 1}[/tex]
[tex]\mathbf{ -x + y = 7}[/tex]
Rewrite as:
[tex]\mathbf{ y -x= 7}[/tex]
The above means that, the difference between the integers is 7.
There are several integers that fit the above description;
One possibility is: 9 and 2
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A triangle has three angles 5x, 9x and 4x. as described below. Find the value of x
and the value of each angle.
Answer:
the value of x=10°
Step-by-step explanation:
hey there!
as there is given angles of the triangle i.e. 5x,9x,4x
now adding all of them,
5x +4x+9x=180 (reason: sum of angle of a triangle is 180°)
18x=180
x=180/18
x=10
therefore the value of x is 10
now the value of each angle is;
5x= 5*10=50
4x=4*10=40
9x=9*10=90
hope it helps! thank u!!!
In evaluating the limits of rational functions, the numerator and the denominator was found out to be both equal to zero, what does it mean?
Answer:
If only numerator found as zero the answer would be zero. If only denominator found as zero the answer is undefined. In your situation both are zero. But, when denominator becomes zero the answer always be undefined. Therefore, your answer is undefined when both numerator and denominator are zeros.
If C=5/9(F-32) what is the value of F when C =40
Answer:
[tex](F)= \frac{9}{5} [/tex]
Solve for v.
2v+13=39
Simplify your answer as much as possible.
Answer:
13
Step-by-step explanation:
2v = 26
v = 13
w=x/y-z (solve for x)
Answer:
x=yW+yz
Step-by-step explanation:
find the LCM for 5, 9 show your work
Answer: 45
Step-by-step explanation:
5,10,15,20,25,30,35,40,45
9,18,27,36,45