Mathematics High School

I BET NO ONE KNOWS THIS What is the identity of an ion having 46 protons, 42 electrons and 60 neutrons?
Group of answer choices

106Pd4+

106Mo12+

148Nd4-

60Pd4+

102Mo4+

88Nd4+

Answers

Answer 1

Answer:

hard

Step-by-step explanation:

Related Questions

What is 918 rounded to the nearst cm

Answers

Here we will tell you what 918 is rounded to the nearest ten and also show you what rules we used to get to the answer.

Remember, we did not necessarily round up or down, but to the ten that is nearest to 918.

First, 918 rounded to the nearest ten is:

=920

During a checkers game, there are 16 pieces left. The ratio of a black to red is 3 : 5. How many black pieces are in the board?

Answers

6 youreeeeeeeeee welcome bestieeeeeee

(-4,-6) perpendicular to the line y=2x+5

Answers

Here you go!! Hope this helps

Which of the following is not the test of similarity?
A) AAA test B) SAS test C) SAA test D) SSS test

Answers

Answer:

AAA test

Step-by-step explanation:

AAA is not test of similarity

Which answer represents the series in sigma notation?

1+12+14+18+116+132+164




∑j=1712(j+1)

∑j=17(12)j−1

∑j=1712j+1

∑j=172j−1

Answers

Answer: The answer is the second one: ∑j=17(12)j−1

Step-by-step explanation:

-4y + 2= -2
whats Y?

Answers

Answer:

y = 1

Step-by-step explanation:

-4y + 2 = -2

-2 -2

-4y = -4

Then you divide both sides by -4..

-4y/-4 = -4/-4

So

y = 1

Hope this helps

HELP!! PLS & THANK YOU

Answers

Letter C is the correct answer

help me pls it’s not too much!

Answers

9,240 yards = 5.25, or 5 1/4 miles.

The expression 4h−3 factored is

Answers

Answer:

prime

Step-by-step explanation:

this equation is not factorable

Find the area of a regular pentagon with a side of 5cm round to nearest tenth

Answers

Answer:

43 cm^2

Step-by-step explanation:

tan 72/2 = 0.7265

0.7265 = 0.5(5)/h

h = 3.44

3.44 x 5 x 0.5 = 8.6

8.6 x 5 = 43 cm^2

The number of students enrolled at a college is 16,000 and grows ​6% each year. Complete parts ​(a) through ​(e).

Answers

What if you add 16,000

I dont know what this is pls help​

Answers

Answer:

Plane

Step-by-step explanation:

The definition of a Plane is "In mathematics, a plane is a flat, two-dimensional surface that extends infinitely far."

It couldn't be a Ray or a Line Segment because a Ray has 1 end point, and a Line Segment has 2.

It also couldn't be a Line because a Line is only 1 dimensional.

The answer has to be Plane.

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Answers

Answer:

No spam no help

Step-by-step explanation:

The answer is D your welcome

What is the constant of proportionality in the table shown ?

Answers

Answer:

9

Step-by-step explanation:

Grace drew a triangle. Its sides were 6 mm. 7 mm and 11 mm.
It has one obtuse and two acute angles.
Complete the sentence to describe the triangle Grace drew.

Answers

Answer:

That would be an obtuse-scalene triangle.

Step-by-step explanation:

It is scalene because none of the sides are congruent. This means that none of the angles or sides are the same.

A cereal box says that now it contains 40% more. Originally, it came with 24 ounces of cereal. How much cereal does the box come with now?

Answers

Answer:

36 oz

Step-by-step explanation:

multiply 24 by 104% because there is the original amount and 40% more

What is the surface area of a sphere with a radius of 30 m?

Answers

Answer:

The surface area A of a sphere:

A=4πr^2

r - the radius

r=30 m

A=4π×30 ^2 =4π×900=3600π [m ^2 ]

Surface area = 3600π [m ^2 ]

(a) 26 is 65% of what number? (b) What is 55% of 6Q?
PLEASE HELP ME!​

Answers

Answer:

1. 40 2. 3.3Q

Step-by-step explanation:

Simplify the expression. 4(11 + 7) ÷ (7 – 5) 40 36 47 5

Answers

Answer:

36

Step-by-step explanation:

[tex]8.859 {}^{ - 7} [/tex]

Jane Martin-Smith and her husband deposited $500 in an account on their wedding day and each subsequent anniversary. The money was deposited in an account that pays 7 percent compounded annually. How much will they have on their 25th anniversary?

Answers

Answer:

On their 25th anniversary, their account will have $850

Step-by-step explanation:

7% per year for 25 years is 170%

170% of 500 is 850

I hope this helps!

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Determine whether the triangle is acute, right, or obtuse given the sides: 11, 14, 20

Answers

Answer:

317 < 400

The Sum of the squares of the smaller 2 sides (121 + 196 = 317)  < longest side squared (400) So, it is an  OBTUSE SCALENE TRIANGLE.

Source: http://www.1728.org/triantest.htm

Step-by-step explanation:

help plz will give brainiest

Answers

Answer:

The answer is  B

[tex]\frac{1}{x^{2} -4x+3}[/tex]

Step-by-step explanation:

Find the missing angle in the triangle.





Question 1 options:

A. 90°


B. 25°


C. 108°


D. 130°

Answers

180 - (61+29) = 90
The answer is 90

Answer:

A. 90 degrees

Step-by-step explanation:

a triangle has a total of 180 degrees in all of its angles combined (excluding the outside angles).

61+29=90

180-90=90

what is an equationof the line that passes through the points (0,-7) and (-8,3) put your answer in fully reduced form pleaseee help me.. 15 points ?​

Answers

Answer:

y = -5/4x - 7

Step-by-step explanation:

First, find the slope:

3 - -7 / -8 - 0 = -5/4

Put it in point slope form:

y + 7 = -5/4(x-0)

y + 7 = -5/4x

y = -5/4x - 7

Write all three forms (slope intercept, point slope and standard) of a line containing the points (4, -11/3) and (1/2, -29/6).

Answers

Answer:

See explanations below

Step-by-step explanation:

Slope intercept form of the equation is expressed as y = mx+b

m is the slope

b is the intercept

Given the coordinates (4, -11/3) and (1/2, -29/6)

Slope m = -29/6-(-11/3)÷(1/2-4)

m = (-29/6+11/3)÷(-7/2)

m = -29+22/6÷(-7/2)

m = -7/6÷(-7/2)

m = -7/6×2/-7

m = 2/6

m = 1/3

Get the intercept b

Substitute m= 1/3 and (4, -11/3) into y = MX+b

-11/3 = 1/3(4)+b

-11/3 = 4/3+b

b= -11/3-4/3

b= -15/3

b =-5

Get the required equation

y = 1/3 x -5 (slope-intercept form)

Point slope form of the equation is expressed as y-y0 = m(x-x0)

Substituting m = 1/3 and the point (4,-11/3)

x0 = 4

y0 = -11/3

y - (-11/3) = 1/3(x-4)

y+11/3 = 1/3(x-4) (point-slope form)

For standard format

Recall that y = 1/3x - 5

Multiply through by 3

3y = 1/3x(3)-5(3)

3y = x-15

3y-x = -15(standard form)

Angles α and β are angles in standard position such that: α terminates in Quadrant I and sinα = 3/5 β terminates in Quadrant III and tanβ = 5/12 . Find sin(α - β).

Answers

Answer:

-16/65

Step-by-step explanation:

Given sinα = 3/5 in quadrant 1;

Since  sinα = opp/hyp

opp = 3

hyp = 5

adj^2 = hyp^2 - opp^2

adj^2 = 5^2 = 3^2

adj^2 = 25-9

adj^2 = 16

adj = 4

Since all the trig identity are positive in Quadrant 1, hence;

cosα = adj/hyp = 4/5

Similarly, if tanβ = 5/12 in Quadrant III,

According to trig identity

tan theta = opp/adj

opp = 5

adj = 12

hyp^2 = opp^2+adj^2

hyp^2 = 5^2+12^2

hyp^2 = 25+144

hyp^2 = 169

hyp = 13

Since only tan is positive in Quadrant III, then;

sinβ = -5/13

cosβ = -12/13

Get the required expression;

sin(α - β) = sinαcosβ - cosαsinβ

Substitute the given values

sin(α - β) = 3/5(-12/13) - 4/5(-5/13)

sin(α - β)= -36/65 + 20/65

sin(α - β) = -16/65

Hence the value of sin(α - β) is -16/65

This is for algebra 1

Answers

(732,837329).............

For all the values of x,
f(x)=2x^2 and g(x)=x+1
Solve fg(x)=gf(x)

Answers

Answer:

if f(g(x)) = g(f(x)), then x is equal to zero.

Step-by-step explanation:

given:

f(x) = 2x²

g(x) = x + 1

then:

f(g(x)) = 2(x + 1)²

g(f(x) = 2x² + 1

so if:

f(g(x)) = g(f(x))

then:

2(x + 1)² = 2x² + 1

2(x² + 2x + 1) = 2x² + 1

2x² + 2x + 1 = 2x² + 1

2x = 0

x = 0

What is the measure of an angle that is supplementary to an angle that measures 101°? (Type number only)

Answers

180 - 101 = 79
Supplementary mean that the two angle measures add up to equal 180

Please help with algebra, due soon. Worth good amount of points. I'll give thanks and brainliest too.

Answers

Answer:

(9)3v^4+7v^3-2

Step-by-step explanation:

First open brackets

Then group like terms

and work it out

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