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3 years ago

Which quadrilaterals have diagonals that are perpendicular?

Mathematics

1 answer:

Whitepunk [10]3 years ago

4 0

Hey there!

The answer would be kite, rhombus, and square

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If the temperature were to drop 38 degrees, which number would display this best?

emmasim [6.3K]

I think it might be -38, not 100% though.

3 0

3 years ago

The function m(w) = –25w + 2500 models the amount of money in a safe, in dollars, w weeks after Lori learned the combination to

elena55 [62]

Answer:

B) There will be no money in the safe 100 weeks after Lori learned the combination.

I hope this answer is right.

5 0

3 years ago

Can you check my answers and help with number 3?

mamaluj [8]

Answer: Question 1 :B,D.

Question 2:option B,

Question 3:Degree=5.

Question 4:option D.

Question 5: option c.

Step-by-step explanation:

1) A polynomial can not have any exponent as a variable or a fraction.

Options B and D are polynomials.

2) The polynomial is having 3 terms and is of degree 3.so it is a cubic trinomial Option B.

3) Degree is the highest power of the variables in the terms .The term $6x^{3} y^{2}$ has the power=3+2=5

So degree =5.

4) $(5x-2+3x^{2} )+(4x+3)=3x^{2} +5x+4x-2+3=3x^{2}+9x+1.$

Option D

5) $(5x^{2} +2x-5)-(3x^{2}+3x+1)= 5x^{2}+2x-5-3 x^{2}-3x-1$

Simplifying like terms,

= $2x^{2}-x-6.$

Option c.

6 0

2 years ago

If f(x)=log2(x+4), what is f^-1(3)?

zalisa [80]

$f\left( x \right) =\log _{ 2 }{ \left( x+4 \right) } \\ \\ \log _{ 2 }{ \left( x+4 \right) } =y\\ \\ { 2 }^{ y }=x+4$

$\\ \\ x={ 2 }^{ y }-4\\ \\ \therefore \quad { f }^{ -1 }\left( x \right) ={ 2 }^{ x }-4\\ \\ \therefore \quad { f }^{ -1 }\left( 3 \right) ={ 2 }^{ 3 }-4=4$

3 0

3 years ago

Read 2 more answers

When stating the null and alternative hypotheses, the hypotheses are: Select one: a. Always about the statistic only b. Always a

Nata [24]

Answer:

D. Always about the parameter only

Step-by-step explanation: A Null Hypothesis is a hypothesis used in statistics to show that there is no variation among the variables of interest. A Null Hypothesis also can be said to be giving a proposal that there is not significant difference between the observed data.

An alternative hypothesis is a hypothesis in statistics given contrary to the Null Hypothesis,a Null hypothesis can also be seen in statistics as stating that something is happening among the data.

3 0

2 years ago