A student is investigating how light intensity affects photosynthesis. They place a piece of pondweed in a test tube containing sodium hydrogen carbonate solution. State the role of the sodium hydrogen carbonate solution. (1 mark) square

Write an expression for the sequence of operations described below. v decreased by the difference of 2 and 10 Do not simplify any part of the expression. square Submit

James writes down the number 60. He wants to multiply it by one of the fractions below to get the biggest answer possible. Which of the three fractions below should he use? What is the answer to this multiplication? 60times square =

The exterior angles have been marked on the shape below. a+b+c+d=320^circ Work out the size of the angle marked f.

ECTION A: Q.C.M 5pts 1- L'unité statistique peut être définit comme : a) Un processus d'organisation de l'information b) Un groupe d'individus c) Eléments de la population ou les données sont collectées d) Un ensemble d'objets , un ensemble de concept 2- Une population en statistique est : a) L'ensemble d'unités statistique données de propriétés identiques b) L'ensemble d'individus ,des caractères de mesure c) Le vocabulaire statistique essentiellement celui de la démographie d) La fraction de la population qui peut être prise en compte lors d'une étude 3- Un échantillon est a) Une population représentative b) Un sous ensemble de la population c) La population étudiée d) Un ensemble de donnée étudié 4- Parmi les variables suivantes choisir l'intrus a) Le poids b) La taille c) Age de grossesse d) Le sexe

(b) Determine and classify the stationary points of the function: f(x,y)=x^3+y^2-5xy-5y+10 (15 marks)

Multiple Choice Question On agereticmea long map distances are not accurate What technique can be used to order genes that are far apart from one another? Aceuplody A.chomosome with a viobile marker A three point cons (2) Need help freienthes concept resources.

What is the mean number of pieces of homework received per day? Weekly homework

You and a friend are playing a game by tossing two coins . If both coins are heads or both are tails, you win. Otherwise , your friend wins. The table show the possible outcomes. Coin 1 Coln 2 Heads Heads Heads Tails Tails Tails Tails Heads Is this a fair game? A. Yes. You and your friend each have a (1)/(4) probability of winning. B. Yes. You and your friend each have a (1)/(2) probability of winning. C. No. You have a (1)/(2) probability of winning , while your friend has a (1)/(4) probability of winning. D. No. You have a (1)/(4) probability of winning ,while your friend has a (1)/(2) probability of winning.

Belinay is making garlands of popcorn kernels and berries to feed the wildlife. The diagram shows the ratio of lengths of the garland made from popcorn kernels to berries. Popcorn Berries All of the following diagrams represent equivalent ratios. Which dlagram best shows how long, in cm, the part of the garland with popcorn is when the whole garland is 84cm long? Choose 1 answer: A Pepcorn 7 7 7 Berries Pepoorn 12 12 12 12 12 12 12 Berits Percorn 3) 21 31 31 2) 21 21

Tamara has a box of fruit. There are 2 strawberries for every 3 cherries in the box. If there are 12 cherries in the box how many strawberries are there?