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3 years ago

11

Kevin finished a race in 25.7 minutes juile finished the race 7 1/10 sooner than kevin finished it how many minutes did it take

juile to finish

1 answer:

Papessa [141]3 years ago

5 0

Answer:

18.6 minutes

Step-by-step explanation:

subtract. im sorry if this is not right. im not smart

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Find x .<br><br> Select one:<br> a. 3/4 <br> b. 1/2 <br> c. 2 <br> d. 4

sashaice [31]

we are given

BE=x

ED=x+10

AE=x+1

EC=x+3

we can see that two chords AC and BD are intersecting inside the circle

so, we can use property

$AE*EC=BE*ED$

now, we can plug values

$(x+1)*(x+3)=(x)*(x+10)$

now, we can multiply them

$x^2+4x+3=x^2+10x$

now, we can move all terms on left side

$x^2+4x+3-x^2-10x=0$

$3-6x=0$

$x=\frac{1}{2}$ ...............Answer

6 0

3 years ago

one eighth of the brass instruments are tubas. if there are 240 instruments in the band, how many are tubas?

Andrej [43]

Just do 240 times 1/8 which is the same thing as 240/8, which is 30

6 0

3 years ago

Small Town USA has a population of 4•10 to the power of 4. Big town has a population of 2•10 to the power of 5. How many times l

Kryger [21]

Big town is 5.121 times larger than Small town.

Step-by-step explanation:

Step 1:

In order to determine how much larger Big town's population is to Small town's population is, we need to convert the exponentials into actual numbers.

Small town's population $= 4.10\times 10^{4} = 41,000.$

Big town's population $= 2.10\times 10^{5} = 210,000.$

Step 2:

In order to determine how much larger Big town's population is to Small town's population is, we divide Big town's population by Small town's population.

$\frac{210,000}{41,000} = 5.121.$

So Big town is 5.121 times larger than Small town.

4 0

3 years ago

Discuss his principles of inheritance by answering the following questions. Two plants are being crossed, each heterozygous for

disa [49]

Answer:

Q1 - What is the possibility that the offspring will have white flowers? Express your answer as a ratio.

A: White flowers only appear if the offspring is homozygous for b because this phenotype is recessive, so they have to present bb phenotype. If both parents are heterozygous (Bb), each one gives one gene at a time per individual after crossing, so 1/4 would be BB, 2/4 would be Bb and 1/4 would be bb.

Q2 - If one parent is also heterozygous for smooth peas, does this mean that all of the offspring with blue flowers will also have smooth peas? Explain your answer without using a Punnett square.

A: No, it doesn't mean that all blue flowers will present smooth peas because those genes are expressed in different loci, so they segregate independently. There might be some blue flowers with smooth peas, but that is not mandatory for all of them.

Q3 - Suppose both parents are also heterozygous for smooth peas (S), with wrinkled peas (s) as the recessive trait. Use a Punnett square to predict the possibility that the offspring will be homozygous for both flower color and pea texture. Make sure to include a Punnett square and express your prediction as a ratio.

A: Parental genotypes are BbSs x BbSs. Given that the genes segregate independently, we will have the Punnett diagram as follows:

BS / Bs / bS / bs

BS BBSS / BBSs / BbSS / BbSs

Bs BBSs / BBss / BbSs / Bbss

bS BbSS / BbSs / bbSS / bbSs

bs BbSs / Bbss / bbSs / bbss

Homozygous genotypes are the ones that both genes are the same when expressed, either BB,bb,SS or ss. The probability the offspring is homozygous for both flower color and pea texture is 4/16, or 1/4.

5 0

3 years ago

Find the length of NO<br><br> find the measure of

Lynna [10]

Answer:4-2+3 Step-by-step explanation:8

4 0

3 years ago