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
zhannawk [14.2K]
2 years ago
8

Tammy scored 88, 72, 44 points on her first three test. What must she score in her last test to get at least an average of 70?

Mathematics
1 answer:
lara [203]2 years ago
5 0

Answer:

76

Step-by-step explanation:

(88+72+44+x)/4=70

88+72+44+x=280

204+x=280

x=76

Therefore, Tammy needs to score a 76 on her last test to get at least an average of 70.

You might be interested in
Any whole number and it's opposite,but it cannot be a decimal or fraction
Eddi Din [679]
-1 and 1 are opposites, not decimals, and not fractions.  Please mark Brainliest!!!
8 0
3 years ago
What is the relationship between .04 and .004
IRINA_888 [86]
They are both decimals.

But 0.04 > 0.004.
4 0
3 years ago
Read 2 more answers
which transformation causes the described change in the graph of the function y = cos x? the transformation results in a horizon
luda_lava [24]
The transformations that can occur to the graph of the function y = cos x that will exhibit changes would be changes to the angle, or changes to the coefficient. The transformations can be viewed as follows:

y = cos x transforms to y = cos (kx)

k > 1 ; a horizontal shrink occurs
0 < k < 1 ; a horizontal stretch occurs

y = cos x transforms to y = A cos x

|A| > 1 ; a vertical stretch occurs
|A| < 1 ; a vertical shrink occurs
5 0
3 years ago
Simplify the expression using trigonometric identities: sec (–θ) – cos θ.
ololo11 [35]

Answer:

sin θ . tan θ

Step-by-step explanation:

Note : -

sec ( - θ ) = sec θ

Formula / Identity : -

sec θ = 1 / cos θ

sec ( - θ ) - cos θ

= [ 1 / cos θ ] - cos θ

{ LCM = cos θ }

= [ 1 / cos θ ] - [ cos²θ / cos θ ]

= [ 1 - cos²θ ] / cos θ

{ 1 - cos²θ = sin²θ }

= sin²θ / cos θ

{ sin²θ = sin θ . sin θ }

= sin θ . sin θ / cos θ

{ sin θ / cos θ = tan θ }

= sin θ . tan θ

Hence, simplified.

4 0
2 years ago
Which quantity is unknown
OleMash [197]

Answer:

The price of each book without sales tax

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • A fur pillow costs $50 and sells for $80. What is the rate of markup based on the selling price?
    12·1 answer
  • The center on the basketball team scored 19 of the team’s 98 points. What percent of the points did he score?
    14·2 answers
  • A news article says that high school students are currently spending an average of 15 hours per week doing homework online. You
    7·1 answer
  • Susan drove 571 miles and the trip took 14 hours of driving time she wants to shorten her driving time by 1/2 hour what average
    15·1 answer
  • A spinner has 1212 ​equal-sized sections. ThreeThree of the sections are purplepurple. a. What is the probability that the spinn
    11·1 answer
  • Can someone help me out on this?
    14·1 answer
  • There are 95 seats on a train. 19 of the seats are empty. What percentage of the seats on the train are empty?
    12·1 answer
  • HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
    9·2 answers
  • What is the hundred digits of pi?​
    13·2 answers
  • Someone help please:)))
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!