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stealth61 [152]

3 years ago

14

One day, the temperature started at 18° at 6:00 a.m., then climbed 7° by noon, and then dropped 5° by midnight. What was the tem

perature at midnight?
10

20

14

4

1 answer:

lesantik [10]3 years ago

6 0

The answer would be 20<span>°
Hope I helped you!!</span>

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Let f(x) = x^2 − 3x − 7. Find f(−3).

IRINA_888 [86]

Answer:

11

Step-by-step explanation:

(-3)²-3(-3)-7

9+9-7

11

7 0

2 years ago

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PLSSS HELP!!! 40 pts!!!!

quester [9]

Answer:

∠1=135°

∠2=45°

∠3=45°

∠4=135°

∠5=135°

∠6=45°

∠7=45°

∠8=135°

Step-by-step explanation:

→∠1=∠4[Being vertically opposite angles]

→∠4=135°

→∠1=∠5[Corresponding angles]

→∠5=135°

→∠5=∠8[Being vertically opposite angles]

→∠8=135°

→∠1+∠2=180°[Sum of linear pair]

→∠2=180°-135°

→∠2=45°

→∠2=∠3[Being vertically opposite angles]

→∠3=45°

→∠3=∠6[Alternate angles]

→∠6=45°

→∠6=∠7[Being vertically opposite angles]

→∠7=45°

3 0

2 years ago

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16. Devon answered 23 out of 25 problems on a math test correctly. What percent of the problems did Devon answer correctly?

timofeeve [1]

Answer:

92%

Step-by-step explanation:

100/25= 4

4 x 23 = 92

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3 years ago

To complete this component you will need to insert parentheses in Expression 2 to change the order of operations so the expressi

Alika [10]

Given:

The expression is $5+4\times 2+6-2\times 2-1$ .

To find:

The position of parentheses inserted in the expression to get the value 19

Step-by-step explanation:

We have,

$5+4\times 2+6-2\times 2-1$

Now,

$(5+4)\times 2+6-2\times 2-1=9\times 2+6-4-1$

$(5+4)\times 2+6-2\times 2-1=18+6-5$

$(5+4)\times 2+6-2\times 2-1=18+1$

$(5+4)\times 2+6-2\times 2-1=19$

There are more ways to apply the parenthesis, but we do not get 19.

$5+4*\left(2+6\right)-2*2-1=32\neq 19$

$5+4*2+\left(6-2\right)*2-1=20\neq 19$

$5+4*2+6-2*\left(2-1\right)=17\neq 19$

And many more possibilities.

Therefore, the expression after inserting the parentheses is $(5+4)\times 2+6-2\times 2-1$ .

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3 years ago

What is the product?<br><br> One-eighth times three-elevenths

Nastasia [14]

Answer:

3/88

Step-by-step explanation:

when multiplying fractions, you can just multiply across. make sure to simplify!

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3 years ago