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2 years ago

What addition doubles fact will help solve 4+3

Mathematics

1 answer:

Sveta_85 [38]2 years ago

6 0

Because 4 + 4 = 8 and you know that 3 is one less than one you could do 8-1= 7 so 4 + 3 = 7

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The two figures are congruent. Find the values of the unknown variables.

kupik [55]

Answer:

y = 71

z = 18

x = 14

Step-by-step explanation:

Figure on the right is simply figure on the left but flipped on its side. we know this because the question tells us the shapes are congruent (which means equal, the same)

7 0

2 years ago

An urn contains 12 balls, of which 4 are white.

wel

Answer:

a) $\frac{1}{3}$

b) $\frac{4}{12}\,,\,\frac{4}{11}\,,\,\frac{4}{10}\,,...$

Step-by-step explanation:

Number of balls in the urn = 12

Number of white balls in the urn = 4

So, number of balls which are not white = 12 - 4 = 8

We know that probability = No. of outcomes/Total number of outcomes

Let $A_i\,,\,B_i\,,\,C_i$ denotes the event of getting white ball by A, B and C

a) each ball is replaced after being drawn.

Probability = Number of white balls/Total number of balls

Solution: $P(A_i)=P(B_i)=P(C_i)=\frac{4}{12}=\frac{1}{3}$

b)the balls that are withdrawn are not replaced.

Solution:

If A wins: $P(A_1)=\frac{4}{12}=\frac{1}{3}$

If A lost and B wins: $P\left ( B_1|A_1^{c} \right )=\frac{4}{11}$

If A and B lost and C wins: $P\left ( C_1|A_1^{c}\,B_1^{c} \right )=\frac{4}{10}$

and so on....

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3 years ago

lf the owner has $700 to spend on trees, how many can he purchase? Show or explain your work. Based on the table, what will be t

gavmur [86]

Answer: I need the table to be able to answer

5 0

3 years ago

You flip a coin, and then roll a number cube twice. Find the probability of the event.

uysha [10]

No. It doesn’t, the square root is different than the approximate length.

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3 years ago

10 to the zero power times 0.23=

Lana71 [14]

The answer is 0.23. Ned an explanation

5 0

3 years ago