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Ede4ka [16]
3 years ago
13

Which of these numbers is a prime number 1,11,21,51

Mathematics
1 answer:
Vlad [161]3 years ago
3 0
Im pretty sure its 11
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Help, i'll give a brainliest
Valentin [98]

Answer:

The equation is y=2x + 2

Step-by-step explanation:

4x+2y=7

2y=-4x+7

y=-2x+7/2

Hence, the gradient =-2

Note that: parallel lines share the same gradient

sub m(gradient)=-2 and the point (1,0) into y=mx+c

0=-2(1)+c

c=2

Therefore, the equation in the form of y=mx+c is y=-2x+2

8 0
3 years ago
3.625 x 10−4<br> Question 2 options:<br><br> .3625<br><br><br> 36,250<br><br><br> 0.0003625
disa [49]

Answer:

0.0003625

:) Hope that helps :)

3 0
3 years ago
A license plate consists of two letters followed by two digits; for example, $MP78$. Neither the digits nor the letters may be r
alex41 [277]

If in a number plate two different alphabets need to be selected then there are 650 such number plates that can be formed in such a way that the alphabets come in increasing order.

Given that a number plate can be formed using 2 alphabets which must come in increasing order.

We are required to find the number of plates that can be formed.

Number of total alphabets=26.

The number of plates will be equal to the number of ways in which two alphabets can be arranged.

Combination is the number of ways in which some combinations can be formed. It is expressed as nC_{r}=n!/r!(n-r)!

Number of license plates=26C_{1}*25C_{1}

=26*25

=650 plates

Hence If in a number plate two different alphabets need to be selected then there are 650 such number plates that can be formed in such a way that the alphabets come in increasing order.

Learn more about combinations at brainly.com/question/11732255

#SPJ4

3 0
1 year ago
Solve for x: 3x + 2x + 7 = 32
Leni [432]

Answer:

The answer is x = 5

Step-by-step explanation:

I added similar elements, then I subtracted 7 from both sides, next I divided by 5 both sides, and lastly I got x = 5 as my answer.

6 0
3 years ago
Read 2 more answers
Which of the following expressions is equivalent to that expression
olganol [36]

Answer:

D

Step-by-step explanation:

not good at explaining i just think its D

7 0
3 years ago
Read 2 more answers
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