Answer:
61
Step-by-step explanation:
the angles of any triangle combined equal 180 therefore take the known angles and subtract them from 180 getting 61
1) 70% of what number is 28?
Answer: 40
Step-by-step explanation: 40*.7 is 28 so that's the answer. How I got the answer was I did 28/.7 to get 40
Hope this helps and brainliest would be appreciated
What is the equation of the line that has a slope of 4 and passes through the point (4,1)
Answer:
B
Step-by-step explanation:
y-y1=m(x-x1)
y-1=4(x-4)
Rectangular prism and its dimensions are shown in the diagram what is the total surface of the rectangular prism in square feet
Answer:
78.5
Step-by-step explanation:
A=2(wl+hl+hw)=2·(4·4.5+2.5·4.5+2.5·4)=78.5
y=-3(x + 5)2 - 4
Convert the equation from vertex form to standard form.
Answer: pink one
Step-by-step explanation:
The convert form of vertex equation y = -3(x+5)² - 4 in standard equation is y = -3x² - 30x - 79.
What is vertex form of equation?The standard form of the equation is ax²+bx+c=y and the vertex form of the equation is y= a(x-h)²+k,
Where k is a constant.
The given equation is,
y = -3(x+5)² - 4
To convert this vertex form of equation is standard form,
Simplify,
y = -3(x²+ 25 + 10x) - 4
y = -3x² -75 - 30x - 4
y = -3x² - 30x - 79
The required standard form of equation is y = -3x² - 30x - 79.
To learn more about Vertex form of equation on:
https://brainly.com/question/19173306
#SPJ2
want to learn symmetry?
Answer:
yes
Step-by-step explanation:
Answer:
i dont know maybe
Step-by-step explanation:
idc
Find the area of the triangle.
The area is = yd
(simplify your answer)
Answer:
472.5
Hope this helps
Si not send links please. Just need the answer. Thank you
Answer:
the answer is 8
A cylinder has a height of 5 feet and a radius of 2 ft.
If a scale model of the cylinder is scaled up by a factor of 3, what is the surface area of the model?
756.20 ft.
791.68 ft.
832.05 ft.
865.28 ft.2
Answer:791.68
Step-by-step explanation:
2*pi*6^2 + 15 *pi * 12 = 791.68
NEED AN ANSWER ASAP!!! WILL REWARD HANDSOMELY!!!
Felicia has a ladder that is 11 ft long. She wants to lean the ladder against a vertical wall so that the top of the ladder is 9.5 ft above the ground. For safety reasons, she wants the angle the ladder makes with the ground to be no greater than 75°. Will the ladder be safe at this height? Show all your work and draw a diagram to support your answer.
Answer:
See attached diagram
We have
GT = 9.5 ftBT = 11 ftLet's find angle x and compare with the safety requirement
GT/BT = sin x9.5/11 = sin xx = arcsin (9.5/11)x = 59.7° < 75°The angle we got is less than 75° so it is safe to use
Find the following rates. Round your answer to the nearest hundredth. a. ? % of 75 = 5 b. ? % of 28 = 140 c. ? % of 100 = 40 d. ? % of 200 = 15
Answer:
a. ? % of 75 = 5 = 15
b. ? % of 28 = 140 = 500
c.? % of 100 = 40 = 40
d.? % of 200 = 15 = 7.5
Hope it helped...
Have a great day : )
what is 3/4 years converted into months.
Step-by-step explanation:
9 months
answer:
9 months
step-by-step explanation:
honestly this problem isnt super super complicated as we need to do is use some multiply tables! :)
since we know that
4*3
= 12
and in this problem
1/4
just means
= 3 months
so
3*3
= 9 months
hope this helps you! :)
Is Figure B a scale copy of Figure A?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~A: Yes
B: No
Answer:
A
Step-by-step explanation:
f(x)=[tex]\sqrt{x^2-4}[/tex], x[tex]\leq \}[/tex]0
find [tex](f^-^1)'(1)[/tex]
I keep getting the wrong answer. The correct answer is[tex]\frac{1}{\sqrt{5} }[/tex]
Solve for x when √(x ² - 4) = 1 :
√(x ² - 4) = 1
x ² - 4 = 1
x ² = 5
x = ±√5
We're looking at x ≤ 0, so we take the negative square root, x = -√5.
This means f (-√5) = 1, or in terms of the inverse of f, we have f ⁻¹(1) = -√5.
Now apply the inverse function theorem:
If f(a) = b, then (f ⁻¹)'(b) = 1 / f '(a).
We have
f(x) = √(x ² - 4) → f '(x) = x / √(x ² - 4)
So if a = -√5 and b = 1, we get
(f ⁻¹)'(1) = 1 / f ' (-√5)
(f ⁻¹)'(1) = √((-√5)² - 4) / (-√5) = -1/√5
The sign must be negative; see the attached plot, and take note of the negatively-sloped tangent line to the inverse of f at x = 1.
4w2 + 3w - 1
5w - 2
Area
Answer:
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
<mrow>
<mi>w</mi>
</mrow>
<mrow>
<mn>2</mn>
</mrow>
<mo>=</mo>
<mo>−</mo>
<mrow>
<mn>5</mn>
</mrow>
<mfrac>
<mrow>
<mi>w</mi>
</mrow>
<mrow>
<mn>4</mn>
</mrow>
</mfrac>
<mo>+</mo>
<mfrac>
<mrow>
<mn>1</mn>
</mrow>
<mrow>
<mn>2</mn>
</mrow>
</mfrac>
</math>
Step-by-step explanation:
please help find the values of a,b,c
9514 1404 393
Answer:
a = 3b = 4c = 2d = 1Step-by-step explanation:
There are zeros at x=-1 and x=4, so numerator factors of (x +1) and (x -4).
There are vertical asymptotes at x=1 and x = -2, so denominator factors of (x-1) and (x+2).
There is a hole at x=-3, so another numerator factor of (x+3) to cancel the one in the denominator.
Comparing the above to the given expression for f(x) we see that ...
a = 3b = 4c = 2d = 1Can someone plz help me with this asap I would really appreciate it
100 POINTS PLZ HELPPP Drag each tile to the correct box. Arrange the expressions in increasing order of their estimated values.
Answer:
[tex]\frac{\sqrt{24}- \sqrt{54} }{\sqrt{6}}[/tex] = -1 [tex]\sqrt{\frac{9}{20}[/tex]*[tex]\frac{10\sqrt{2} }{3\sqrt{5} }[/tex] = 1.4142[tex]\frac{10\pi\sqrt{2}-8\pi\sqrt{2}}{2\sqrt{2}}[/tex] = π =3.14159[tex]\pi\sqrt{\frac{5}{3}}\cdot\pi\sqrt{\frac{3}{5}}[/tex] = π² = 9.8696Explanation:
1.) Rewrite √24 = [tex]\sqrt{4*6} = 2\sqrt{6}[/tex] Rewrite √54 =[tex]\sqrt{9*6}= 3\sqrt{6}[/tex]
Divide both terms by the denominator; √6 cancels. 2-3 = -1
2.) Rewrite as [tex]\frac{3}{2\sqrt{5}}[/tex] ×[tex]\frac{10\sqrt{2}}{3\sqrt{5}}[/tex] The 3's cancel. 10/2 = 5√2 in the numerator.
√5 × √5 = 5 in the denominator. The 5's cancel.
That leaves √2 ≈1.4142
3.) Divide the terms in the numerator by the term in the denominator.
√2's cancel. 10π/2 = 5π 8π/2 = 4π
Subtract and we are left with π = 3.14159
4.) [tex]\pi\sqrt{\frac{5}{3}}\cdot\pi\sqrt{\frac{3}{5}}[/tex] The square roots are reciprocals. They multiply to 1
We are left with π × π = π² ≈ 9.8696
Answer:
It goes...The second one, fourth one, First one, then the third one
Step-by-step explanation:
I took the test a while ago
Someone answer and explain ILL MARK BRAINLIEST!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
Answer:
Just explained a while ago
Step-by-step explanation:
How many solutions does the system have?Explain
Y=2x+3
-4x+2y=8
Please anyone help !?
Rewrite each subtraction equation as an addition equation.
p - 20 = - 30
Answer:
p + 30 = 20
Step-by-step explanation:
we can add 30 to both sides to make this an addition equation:
p - 20 = -30 (now add 30 to both sides)
p - 20 + 30 = 0 (then, add 20 to both sides)
p + 30 = 20 (this would be the addition equation)
Fill in the blanks: for a and b
Answer: b for a sorry that’s all I Could understand
Step-by-step explanation:
Which of the following explains the role of Pi (1) in finding the circumference of a circle?
А
Pi is the ratio of the radius of a circle to the diameter of a circle.
B
Pi is the ratio of the radius of a circle to the circumference of a circle.
С
Pi is the ratio of the diameter of a circle to the circumference of a circle.
D
Pi is the ratio of the circumference of a circle to the area of a circle.
Answer:
The answer is C, The use of Pi can be used to find the ratio of the diameter and circumference of a circle
Step-by-step explanation:
At a store 32% of the weekly sales were made on Saturday. Which fraction is equal to this percentage
Answer:
8/25
Step-by-step explanation:
32% as a decimal is 0.32. 0.32 as a fraction is 8/25, becuase if you divide 8 by 25, you get 0.32.
Phone calls to New York are charged at the rate of £2.90 for a 5-minute call. John’s call costs £7.86. How long (in minutes) was his call?
Answer:
Step-by-step explanation:
5 min = 2.90
xmin = 7.86
with cross multiplication;
xmin = 7.86*5min/2.90
x = 13.55=14.0
therefore x = 14min
so he will make of 14min long
This needs to be turned in in 15 minutes help also can u answer both
Answer:
1. 12
Step-by-step explanation:
What is the volume of the cone?
Answer:
Your answer is A. 525 x cm
Step-by-step explanation:
find the zero of the polynomial p(x)=5x-10?
Answer:
x=2
Step-by-step explanation:
hope this helps i haven't done math like this in forever
(3b + 5x)7 please help
Answer:
35x+21b
Step-by-step explanation:
(3b+5x)7
Use the distributive property to multiply 3b+5x by 7.
21b+35x
Reverse terms to the left.
35x+21b
Graph for reference:
8.00 as a fraction in its simplest form
Answer:
4/5
Step-by-step explanation:
8.00= 8= 8/10=4/5
=^=
Angle a =
126
What is the measure of angle b? Explain how you calculated your answer.
Angle a=
126° Write an equation(s) in terms of b to find the measure of angle h.
Calculate the measure of angle h, using the equation(s) you wrote for Part B.
How would knowing the measure of angle y change the equation(s) you wrote in Part B to find the measure of angle h?
B I VIX
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Answer:
L 2r. x. em -ca tpd apt answer