What is true about heart valves?

1.solve for p

Mnenie [13.5K]

<h3>1. <u>Answer;</u></h3>

<em>p =-3/2p</em>

<h3><u>Solution;</u></h3>

To solve for P in the equation;

= 3(p + q ) = p

We open the brackets;

= 3p + 3q = p

Then, we combine the like terms together, we get;

<em> 3p - p = -3q</em>

<em> Therefore; 2p = -3q</em>

<em> hence; p = -3/2q. </em>

<h3>2. <u>Answers</u>;</h3>

<em>b = 19/2</em>

<h3><u>Solution;</u></h3>

To solve for b when the value of a = 3

4a = 2b - 7

we substitute 3 with a in the equation

<em>Then, make b the subject</em>

<h3>3. <u>Answer;</u></h3>

<em>r =d/t</em>

<h3><u><em>Solution;</em></u></h3>

To solve for r

d= rt.

In order to get r, we divide both sides by t

<em>d/t = rt/t</em>

<em>r = d/t</em>

<h3>4. <u>Answer;</u></h3>

<em>Width = 30 units</em>

<h3><u>Solution;</u></h3>

The width of a rectangle with a given perimeter of 90 and length is 15.

The perimeter of a rectangle is given by;

Perimeter= 2(Length + Width)

Thus;<em> Perimeter = 90 , length=15 </em>

<em> 90 = 2 (W + 15)</em>

<em>Dividing both sides by 2,</em>

<em>45 = w + 15 </em>

<em>Subtracting from both sides;</em>

<em>W = 45 -15 </em>

<em>W = 30 </em>

Therefore,<em><u> the width of the rectangle is 30 units</u></em>

5 0

3 years ago

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What is the purpose of the part of the male reproductive system that is

Dahasolnce [82]

Answer:

A creates the fluid in semen

3 0

3 years ago

Name two types of evidence used to support the theory of evolution. explain how scientist use each type of evidence to provide s

joja [24]

Answer:

There are many types of evidence which support the theory of evolution such as comparative anatomy, fossil records, phylogenetic relationship, embryology et cetera

Comparative anatomy includes homologous organs and analogous organs. They support divergent and convergent evolution respectively.

For example, the homologous structure of limb of humans, birds, bat, horse, whale et cetera show that they are made up of the same set of bones which are humerus, radius, ulna, carpals, metacarpals, and phalanges.

It shows divergent evolution and supports that these organisms have evolved from a common ancestor.

Embryological evidence: When early stages of embryological development of different organisms are compared, it is found that these stages are similar at different levels of development.

For example:

The appearance of pharyngeal-arch (gill-like structures) in vertebrates during embryo development.
Salamanders and terrestrial frogs pass through larval stages within an egg. They possess the features similar to aquatic larvae, however, when they hatched out the eggs being ready for life on land.

3 0

3 years ago

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by sensing and responding to change organisms keep conditions in the internal enviornment within ranges that cells can tolerate

Zina [86]

Answer:

idk

Explanation:

do u have a picture of if

5 0

3 years ago

Snapdragons are popular garden plants that produce brightly colored flowers. When a plant that is homozygous for white flowers i

elena-s [515]

Explanation:

Incomplete dominance is an intermediate effect of the dominance where the allele for a trait does not express its complete effect of a paired allele as a result both the alleles show their equal effect on the trait.

The generations are produced having a third trait as observed in the case of snapdragon flowers. In the case of flowers

The allele which

1. Determines the red color will be- R

2. Determines the white color will be- r

The monohybrid cross will have parents with genotypes:

1. Red flower- RR

2. white flower-rr

The F₁ generation will have offsprings with genotype-

RR X rr = Rr (Pink flower)

The F₂ generation will have offsprings with-

Rr x Rr= RR, Rr and rr.

5 0

3 years ago