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2 years ago

Pick out the composite numbers from the following numbers:

Mathematics

1 answer:

Anna35 [415]2 years ago

7 0

Answer:

35, 39, 44, 52, 55, 57, 60, 69

Step-by-step explanation:

Composite numbers have multiple factors other than 1 and itself.

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Although five of John's answers were incorrect, 90% of his answers were correct. How many questions did John answer in all?

fiasKO [112]

Answer:

John answered 50 questions.

Step-by-step explanation:

Although five of John's answers were incorrect, 90% of his answers were correct.

This means that 5 is 100 - 90% = 10% of the total number of questions, n. So

$0.1n = 5$

$n = \frac{5}{0.1}$

$n = 50$

John answered 50 questions.

7 0

2 years ago

Please help me asap

tresset_1 [31]

Answer:

1\2.

Step-by-step explanation:

change in y over change in x. so 13 - 11 over 6 - 2. 2/4 --.> 1\2.

6 0

2 years ago

What is the area of a triangle with a base of 9 feet and a height of 10 feet?

avanturin [10]

Answer:

45 $ft^2$

Step-by-step explanation:

Multiply 9 · 10 = 90 then divided by 2 = 45

6 0

3 years ago

Help and explain explain !!!!!!!!!!

tigry1 [53]

Answer:

$x=-1\text{ or }x=11$

Step-by-step explanation:

For $a=|b|$ , we have two cases:

$\begin{cases}a=b,\\a=-b\end{cases}$

Therefore, for $18=|15-3x|$ , we have the following cases:

$\begin{cases}18=15-3x,\\18=-(15-3x)\end{cases}$

Solving, we have:

$\begin{cases}18=15-3x, -3x=3, x=\boxed{-1},\\18=-(15-3x), 18=-15+3x, 33=3x, x=\boxed{11}\end{cases}$ .

Therefore,

$\implies \boxed{x=-1\text{ or }x=11}$

3 0

2 years ago

Write the first six terms of the sequence.

butalik [34]

Step-by-step explanation:

1st term = -n²+6

= -(1)²+6

= -1+6

2nd term = -(2)²+6

= -4+6 = 2

3rd term= -(3)²+6

=-9+6 = -3

4th term= -(4)²+6

= -16+6 = -10

5th term = -(5)²+6 = -25+6 = -19

6th term = -(6)²+6 = -36+6 = -30

5,2, -3,-10,-19, -30

optionB

6 0

2 years ago