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
Greeley [361]
3 years ago
13

Please Help me With this

Mathematics
1 answer:
timofeeve [1]3 years ago
4 0

Answer:

answer : A

Step-by-step explanation:

hello :

Sin 42°= Cos(90°-42°)=cos(48°)......answer : A

You might be interested in
For number 6, evaluate the definite integral.
maks197457 [2]
\bf \displaystyle \int\limits_{0}^{28}\ \cfrac{1}{\sqrt[3]{(8+2x)^2}}\cdot dx\impliedby \textit{now, let's do some substitution}\\\\
-------------------------------\\\\
u=8+2x\implies \cfrac{du}{dx}=2\implies \cfrac{du}{2}=dx\\\\
-------------------------------\\\\

\bf \displaystyle \int\limits_{0}^{28}\ \cfrac{1}{\sqrt[3]{u^2}}\cdot \cfrac{du}{2}\implies \cfrac{1}{2}\int\limits_{0}^{28}\ u^{-\frac{2}{3}}\cdot du\impliedby 
\begin{array}{llll}
\textit{now let's change the bounds}\\
\textit{by using } u(x)
\end{array}\\\\
-------------------------------\\\\
u(0)=8+2(0)\implies u(0)=8
\\\\\\
u(28)=8+2(28)\implies u(28)=64

\bf \\\\
-------------------------------\\\\
\displaystyle  \cfrac{1}{2}\int\limits_{8}^{64}\ u^{-\frac{2}{3}}\cdot du\implies \cfrac{1}{2}\cdot \cfrac{u^{\frac{1}{3}}}{\frac{1}{3}}\implies \left. \cfrac{3\sqrt[3]{u}}{2} \right]_8^{64}
\\\\\\
\left[ \cfrac{3\sqrt[3]{(2^2)^3}}{2} \right]-\left[ \cfrac{3\sqrt[3]{2^3}}{2}  \right]\implies \cfrac{12}{2}-\cfrac{6}{2}\implies 6-3\implies 3
3 0
3 years ago
On Earth day, a local community wants to distribute 800 flyers, 300 banners, and 250 badges to volunteers in packets containing
steposvetlana [31]

Answer:

800 flyersOn Earth day, a local community wants to distribute 800 flyers, 300 banners, and 250 badges to volunteers in packets containing the three items. What is the greatest number of packets that can be made using all these items if each type of item is equally distributed among the packets?

4 0
3 years ago
​Triangle A′B′C′​ is a dilation of ​triangle ABC​ .
Bumek [7]

Answer:

1/2

Step-by-step explanation:

The scale factor is 1/2 because each side length of \triangle{A'B'C'} is 1/2 of the length of the side lengths of \triangle{ABC}.

Hope this helps :)

6 0
2 years ago
Can someone help with these? ik the answers i just don’t know how to show work
Nonamiya [84]

Step-by-step explanation:

use trigonometry ratios

8 0
3 years ago
I need help on 78 and 79
Orlov [11]

There are 15 pencils altogether. Of these, 4 are green. Thus, P(green) = 4/15.


3+6

There are 3 red and 6 blue pencils. Thus, P(red or blue) = --------- = 3/5

15

3 0
3 years ago
Other questions:
  • Please help xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
    14·2 answers
  • If a line with a slope of -2 crosses the y-axis at (0, 3), what is the equation line? Is it
    14·1 answer
  • A jar contains 11 pennies and 8 dimes. What is the ratio of dimes to pennies? A. 19 to 11 B. 11 to 19 C. 8 to 11 D. 11 to 8
    13·2 answers
  • Please help me with #6
    15·2 answers
  • Jeremy has 50 marbles. Sixteen percent of his marbles are blue. How many blue marbles does Jeremy have?
    11·1 answer
  • Hello I made an pad let group ch.at for people that is bored, wanna make friend and have fun, here's the link https://pad let.co
    12·1 answer
  • THIS IS URGENT PLEASE
    6·2 answers
  • Steve drew a coordinate grid on a map of his town, with his house at the origin. His school is located 2 units above his house o
    5·1 answer
  • The school has arranged to have the gym walls plastered. It takes 200 pounds of lime to make one batch of plaster. Each batch of
    7·1 answer
  • If you receive a 30% DISCOUNT off an item costing $60.00, how much money do you save?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!