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2 years ago

13

Which shape has opposite sides that are both equal in length and parallel and always has four right angles? A. triangle B. recta

ngle C. pentagon D. parallelogram

1 answer:

ra1l [238]2 years ago

8 0

I think its b
hope this helps

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Jane will draw one card from the regular deck of 52 cards. In how many ways can she choose a jack or a black card?

elena-s [515]

Answer:

28

Step-by-step explanation:

In a regular 52 card deck, 26 are black (clubs or spades). Additionally, there are two red jacks (diamonds and hearts). This equals 28/52. As a probability, it would be 28/52=14/26=7/13. This could also be expressed as a percentage or decimal. 0.538 or 53.8%. But the question asks <em>how many ways</em> can she choose a jack or black card, so I’m assuming they don’t want the probability, just the number, which is 28.

3 0

3 years ago

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What is the common factor of each term in the expression 2b+5b?

S_A_V [24]

The common factor is b since it is divisible by both 2b and 5b

5 0

2 years ago

Whitch is greater -8 or +8

finlep [7]

+8 is the greatest then -8

8 0

3 years ago

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Three quarters the product two number x and y<br>

olga55 [171]

Answer:

0.75*(x)*(y)

Step-by-step explanation:

4 0

2 years ago

Please help me! And please no scam answers

Yuri [45]

Answer:

Average rate of change: $-3$

Step-by-step explanation:

<u>Remember:</u>

The average rate of change of a function over an interval $[a,b]$ is $\frac{f(b)-f(a)}{b-a}$

<u>Given:</u>

$[a,b]=[1,7]$

$f(b)=f(7)$

$f(a)=f(1)$

<u>Calculation:</u>

$f(b)=f(7)=-(7)^2+5(7)+14=-49+35+14=-49+49=0$

$f(a)=f(1)=-(1)^2+5(1)+14=-1+5+14=4+14=18$

$\frac{f(b)-f(a)}{b-a}=\frac{0-18}{7-1}=\frac{-18}{6}=-3$

Therefore, the average rate of change of the function $g(x)=-x^2+5x+14$ over the interval $1\leq x\leq7$ is $-3$ .

6 0

2 years ago