1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valentina_108 [34]
3 years ago
12

Julio checked the temperature of a bag of frozen peas and found it was at −12°C. After he left the bag out of the freezer for an

hour, its temperature rose to 7°C. What was the change in temperature in an hour?
Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

The temperature increased by 19°C

You might be interested in
How do I figure this out
monitta
Unfortunately you haven't shared the possible answer choices from the "drop-down menu."  Please do that.  

Please figure out the area of the actual (full-sized) apartment.

Think of the intermediate steps you'd have to follow to construct a scale model to the given scale.
5 0
3 years ago
What value of b with cause the system to have an infinite number of solutions?
Rom4ik [11]

Step-by-step explanation:

-3x+3x-(b÷2)=-3

0-(b÷2)=-3

-(b÷2)=-3

b=-2×-3=+6

=> b=6

5 0
4 years ago
How do you solve this problem? population proportion is to be estimated from a sample of 400 with a sample proportion of 0.1. Ap
Ivan

Answer:

(0.0706, 0.1294)

Step-by-step explanation:

Confidence interval of a proportion is:

CI = p ± CV × SE

where p is the proportion,

CV is the critical value (z score or t score),

and SE is the standard error.

The sample is large enough to estimate as normal.  For 95% confidence level, CV = z = 1.96.

Standard error for a proportion is:

SE = √(pq/n)

SE = √(0.1 × 0.9 / 400)

SE = 0.015

The confidence interval is:

CI = 0.1 ± (1.96)(0.015)

CI = (0.0706, 0.1294)

Round as needed.

6 0
3 years ago
△RST is mapped to △R′S′T′ using the rule (x,y)→(x,−y) followed by (x,y)→(3x,3y)
Vadim26 [7]

Remember:

a) (x,y) => (x, -y) is a reflection across X axis

b) (x,y) => (-x,y) is a reflection across Y axis

Here △RST is mapped to △R′S′T′ using the rule (x,y)→(x,−y)

Hence it is a reflection across X axis.

The size of the triangle does not alter.

But when this is followed by (x,y)→(3x,3y), the lengths increase by a factor 3.

Hence the triangles do not remain congruent.

△RST is not congruent to △R′S′T′ because the rules do not represent a sequence of rigid motions.

Option A) is the right answer

6 0
3 years ago
Read 2 more answers
Y
hichkok12 [17]

Answer:

the correct ones are the 1st, 3rd and 4th

the range is (0:+infinity)

and the second statemend is false because 2²=4, but 2³=8, and 8=4=4 not 2

3 0
3 years ago
Other questions:
  • hello can someone help me with this question please anyone that's is really good in math because I seriously need someone help
    6·1 answer
  • For a local telethon 3860 viewers called in and donated money on the first night. The next night there was a 20% decrease in the
    14·1 answer
  • The"B" isn't part of it, but how do I find x?
    15·1 answer
  • What is the value of x?​
    9·2 answers
  • Help!!! Find the center and radius of the circle with the equation (x-4)²+(y+6)²=16
    5·2 answers
  • Use the GCF to factorthe expression 40x+24y-56
    11·2 answers
  • A bookstore orders 200 books the books are packaged in boxs that hold 24 books each all the boxs the bookstore receives are full
    14·2 answers
  • What is true about the line x-4y=8
    5·1 answer
  • Write an equation of the line in slope-intercept form.<br><br> f(3)=-2, f(0)=1
    7·2 answers
  • 1. Solve for x<br> x + 1 = 6
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!