Will give brainliest if helpful!!!!! :)
Solve the following quadratic equation by factoring:
5r^2 = 80
Answer:
I hope this help
Step-by-step explanation:
I hope this help
Step-by-step explanation:
HOPE IT HELPS
HAVE A NICEE DAY
pls answer each correctly
and show the workings
Answer:
24)
[tex] \frac{4}{5} [/tex]
[tex]25) - \frac{4}{5} [/tex]
[tex]14)1[/tex]
15)19
16)5
17)3
18)5√5
19)8n²√2
Three pounds of bananas cost $7How much does 1 pound of bananas cost?
Answer:
Step-by-step explanation:
3 pounds:7 dollars
1 pound: 2.33 dollars
divide 3 by 3 to find 1. divide 7 by 3.
3a^4b^-2c^3 simplifed
A baseball is hit along the third base line with a speed of 100 ft/s. At what rate is the balls distance from first base changing when it crosses third base?
Solution :
From the triangle,
[tex]$x^2 = s^2 + 90^2$[/tex]
[tex]$x = \sqrt{s^2 + 90^2}$[/tex]
Now differentiating w.r.t "t", we get
[tex]$\frac{dx}{dt}=\frac{d}{dt}\left(s^2 +90^2 \right)^{1/2}$[/tex]
[tex]$=\frac{1}{2}\left(s^2 + 90^2 \right)^{\frac{1}{2}-1} \cdot 2s \cdot \frac{ds}{dt}$[/tex] [chain rule]
[tex]$=\frac{1}{2}\left(s^2 + 90^2 \right)^{-\frac{1}{2}} \cdot 2s \cdot \frac{ds}{dt}$[/tex]
[tex]$=\frac{s}{\left(s^2 + 90^2\right)^{\frac{1}{2}}} . \frac{ds}{dt}$[/tex]
But given that [tex]$\frac{ds}{dt}$[/tex] = 100 ft/s
When all the ball crosses the third base, this means that s = 90. So substituting the value of s and [tex]$\frac{ds}{dt}$[/tex] in [tex]$\frac{dx}{dt}$[/tex] , we get
[tex]$\frac{dx}{dt} = \frac{90}{\left(90^2 +90^2\right)^{1/2}} \times 100$[/tex]
[tex]$\frac{dx}{dt} = \frac{90}{\sqrt{8100+8100}} \times 100$[/tex]
[tex]$\frac{dx}{dt} = 50\sqrt2$[/tex]
= 70.710 ft/s
Answer the question in the picture please
Answer: 1.23
Step-by-step explanation:
0.3*4.1=
Answer:
It is 1.23
Step-by-step explanation:
When multiplying decimals, multiply it as a whole number, and move the decimal to the left the amount of times it was in the problem.
i.e. .3 times 4.1
.3 has 1 number behind the decimal and 4.1 also has one number behind the answer. This means that you will move the decimal to the left twice in 123.0 to 1.23
Enter a value to balance the hanger
Answer:
Try 2.75 it should work
Step-by-step explanation:
prove me wrong
Jody works at an ice cream counter. The ice cream costs $3 per cone. Let c represent the number of ice cream cones she sells. Let p represent
the total cost paid by the customers.
Choose two correct statements about the variables in this situation,
A. The cost per cone depends on the number of cones sold.
B. The total cost paid by customers depends on the number of cones sold,
O c The number of cones sold is independent of the total cost paid by customers.
D. The total cost paid by customers is independent of the number of cones sold,
Answer:
B and C are correct Hope this helps <3
Step-by-step explanation:
Answer:
B and C?
Step-by-step explanation:
Im a little unsure about C but im about99% sure that is correct
Which model represents the product 3/4 x 1/3
Answer:
The first one
Step-by-step explanation:
Solving Inequalities, HELP PLEASE.!!
hjukhvfd816
11/03/2017
Mathematics
Middle School
answered
The Latino Rams at Englewood High school are seeking to raise at least $750 in a fundraiser to pay for their end-of-the year field trip to Islands of adventures.
Answer:
x ≥ $750
Step-by-step explanation:
What is the answer to
1. b+4=2b-5
2. -6-29=5x-7
3. 10h+12=8h+4
4. 7a-17=4a+1
Answer:
b=9
(assuming you meant -6x) x = -2
h = -4
a = 6
Step-by-step explanation:
Factor the expression.
2x + 8
Answer:
2x+8
2 is common
2(x+4)=0
Step-by-step explanation:
Dave and Sue share a pizza in the ratio 2:3.They eat it all.
a. What fraction of the pizza did Dave eat?
b. What fraction of the pizza did Sue eat?
Answer:
a.5/2
b.5/3
because dave eat 2 of the pizza pices from 5 pices
and sue eats 3 of the pizza pices of 5
I will be marking you brainiest and give you 5 stars if you can answer this math question.
Christy is packing for her family’s vacation. She has 5 tops, 3 bottoms, and 2 pairs of shoes. Assuming she wears a top, a bottomless and a pair of shoes with each outfit, how many possible combinations can she make?
Answer:
8
Step-by-step explanation:
Find the area of the shape.
Answer:
39.5 [tex]ft^{2}[/tex]
Step-by-step explanation:
We need to take this shape by shape
Top triangle
a = b*h/2
a = 3*2/2
a = 6/2
a = 3
__________________________________________________________
Bottom triangle:
a = b*h/2
a = 3*3/2
a = 9/2
a = 4.5
__________________________________________________________
Rectangle:
a = b*h
a = 8*4
a = 32
__________________________________________________________
Now add them all up
3 + 4.5 + 32 = 39.5
The area of the shape is 39.5 [tex]ft^{2}[/tex]
Hope this helped!
help pls its iready ill give brainiest
Answer:
I think that it is the second one
Which ratio does NOT represent this situation?
1 point
o
3:12
9:3
8:2
1:3
Answer:
1:3
Step-by-step explanation:
3:12 is the amount of shaded circles to all circles, 8:2 is basically the same thing as 3:12 and 9:3 is the amount of shaded circles to the amount of non-shaded circles. 1:3 wouldn't work because it is not the right ratio.
Raul sells fancy new TVs. They cost $600. He sells the TV for $900. What is his percent markup? show your work
Answer:
His percent markup is 150%
Step-by-step explanation:
please help asap I'll mark brainliest
Answer: G
7/9 yd= 28 in
2.5ft = 30 in
2 2/3 ft= 32 in
33in = 33in
I hope this helps:
Can someone help me do this it’s an emergency
Sarah and $600 per week and spends 15% of earnings on transportation how much does Sarah Spain and transportation every week plz this is very important
Answer she spent 90$ so she should have 510 dollars left
Step-by-step explanation:
15% of 600 is 90. 90-600=510
What expression is equivalent to -2x + 7
Which letter is in the solution set for graph #1
Answer:
Its 50/50 with T or B I say the answer is B
Step-by-step explanation:
Simplify the expression in e^5
Answer:
Step-by-step explanation:
ok im not sure if this is it but 148.41315910
Answer:
148.4
Step-by-step explanation:
Lisa is on a trip of 1,515 miles. She has already traveled 225 miles. She has 3 days left in her trip. How many miles does she need to travel each day to complete the trip?
A.
655
B.
430
C.
1,290
D.
860
Answer:
b.430
Step-by-step explanation:
12 cm
5 cm
what’s the hypotenuse
Answer:13
Step-by-step explanation:
I need the answer please help me
Answer:
-29.988 or if you round up -30
Step-by-step explanation:
1) Convert fractions to decimals
3.6 x (-8.33) = -29.988
Answer:
I think its this but not sure
Simplify the expression 7b + 7 + 5b – 5b + 2a – 12.
Show your work!
Answer:
2a+7b-5
Step-by-step explanation:
7b + 7 + 5b – 5b + 2a – 12
2a+7b+5b-5b+7-12
2a+7b-5
Subtract.
15 8/12−8 5/12
Answer:
158/12-85/12 equals this in a decimal 6.083333333
and in a factor it is 73/12
Step-by-step explanation:
HOPE I HELPED
a) Rotation, then reflection
b) Translation, then rotation
c) Rotation, then translation
d) Translation, then reflection